CN105668446A - Device for equipment hoisting on overhead power line pole and installation tool thereof - Google Patents
Device for equipment hoisting on overhead power line pole and installation tool thereof Download PDFInfo
- Publication number
- CN105668446A CN105668446A CN201610179795.6A CN201610179795A CN105668446A CN 105668446 A CN105668446 A CN 105668446A CN 201610179795 A CN201610179795 A CN 201610179795A CN 105668446 A CN105668446 A CN 105668446A
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- Prior art keywords
- hoop
- bracing wire
- embraced
- transverse arm
- elastic clip
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
- Electric Cable Installation (AREA)
Abstract
The invention discloses a device for equipment hoisting on an overhead power line pole and an installation tool thereof, and belongs to the field of power construction. The device comprises at least one cross arm, wherein a pulley fixation device for installing pulleys for hoisting is fixedly connected to one end of the cross arm, a first stay wire hoop is fixedly connected to the other end of the cross arm, and the cross arm is installed on an electric pole through the first stay wire hoop. The installation tool comprises an elastic clamping piece, wherein a plurality of climbing wheels are uniformly distributed at the inner side of the elastic clamping piece, and the climbing wheels rotate to drive the elastic clamping piece to climb the electric pole; and a locking device for locking the first stay wire hoop is installed on the elastic clamping piece through a connection plate. The device is free form the influence of geographical environment, and in particular, avoids the dispute caused due to the entrance of large machinery into the ground, in the countryside, increases the construction efficiency, and reduces the construction expense; and the installation tool completes installation for the device on the premise of no need of manual climbing, and avoids the potential safety hazards brought by manual climbing installation.
Description
Technical field
The present invention relates to technical field of electric power construction, specifically the device of a kind of equipment hoisting on the bar of overhead power transmission line road and setting tool thereof.
Background technology
At power domain, reinforced concrete pole needs the power equipments such as transformer, switch, thunder arrester are installed, to realize the normal table work of electric power circuit, in power construction, on bar, the installation of equipment is ubiquitous, when manpower cannot be installed, machinery is often used to lift, as: crane etc., but by traffic environmental limit, in the place that crane can not arrive, artificial employing tackleblock need to be leaned on to be moved to by switch position is installed.
When being realized the lifting of equipment by tackleblock, tackleblock is hung in original pole arm, finds: if fixed pulley is close to electric pole on bar, switch there will be switch in uphill process and touches electric pole phenomenon in construction process; If fixed pulley is away from electric pole on bar, solve touching lever phenomenon but cross-arm there will be by power side declivity, need after installing to be recovered by cross-arm, waste time and energy. Based on above-mentioned situation, allow equipment in uphill process neither touching lever do not allow again cross-arm be subject to power, be the problem needing at present to solve.
Summary of the invention
For the problems referred to above, it is an object of the invention to provide the device of a kind of equipment hoisting on the bar of overhead power transmission line road and setting tool thereof, this device, not by the impact of geographical environment, avoids the construction dispute caused because large-scale machinery enters ground, improve operating efficiency, reduce executive cost; This setting tool can complete the installation of described device under the prerequisite without the need to manually ascending a height, and avoids the potential safety hazard manually ascended a height and install.
The present invention solves the technical scheme that its technical problem takes and comprises: the device of equipment hoisting on the bar of overhead power transmission line road, comprise at least one transverse arm, one end of described transverse arm is fixedly connected with the pulley fixing device for installing lifting pulley, the other end of described transverse arm is fixedly connected with the first bracing wire and embraces hoop, and described transverse arm is embraced hoop by the first bracing wire and is arranged on electric pole.
The firm degree being connected for increasing between device and electric pole, further technical scheme is: the lower section of described transverse arm is fixedly connected with vertical arm, the bottom of described vertical arm is fixedly connected with a lateral frame, the other end of described lateral frame is fixedly connected with the 2nd bracing wire and embraces hoop, and described 2nd bracing wire is embraced the while that hoop being embraced by hoop with described first bracing wire and matched with electric pole. The bottom of vertical arm is provided with lateral frame and connects the 2nd bracing wire by lateral frame and embrace hoop, reduce the 2nd bracing wire and embrace the shearing force suffered by hoop, increase the physical strength that hoop junction is embraced in the 2nd bracing wire.
For increasing stability and the mechanical property of mast-up, further technical scheme is: be installed with oblique arm between described transverse arm and described vertical arm, and described transverse arm, vertical arm, tiltedly arm and lateral frame form mast-up jointly. Transverse arm, vertical arm and oblique arm all adopt angle steel to form.
The stability being connected is embraced between hoop and transverse arm for improving the first bracing wire, avoid transverse arm that distortion occurs, further technical scheme is: described transverse arm and the first described bracing wire are embraced and be connected with oblique support bar between hoop, and described support bar is at the zygomorphy of described transverse arm or unsymmetrical arrangement.
The stability being connected is embraced between hoop and lateral frame for improving the 2nd bracing wire, avoid lateral frame that distortion occurs, further technical scheme is: described lateral frame and the 2nd described bracing wire are embraced and be connected with oblique support bar between hoop, and described support bar is at the zygomorphy of described lateral frame or unsymmetrical arrangement.
Further technical scheme is: described pulley fixing device is U shape ring, and the straight flange at described U shape ring top is fixedly connected with the upper surface of described transverse arm. The straight flange at U shape ring top is fixedly connected with the upper surface of described transverse arm, the two ends of pulley fixing device are fixed on the both sides of transverse arm compared with traditional or be fixed on the lower surface of transverse arm, substantially increase the firmness of connection, avoid the junction of hoisting process middle pulley stationary installation and transverse arm that cracking occurs, lifting pulley is arranged on U shape ring, very convenient.
For realizing installing above-mentioned device under the prerequisite without the need to ascending a height, the technical scheme that the present invention solves its technical problem also comprises: the instrument of the device of equipment hoisting on the bar of overhead power transmission line road described in installation, comprise and the elastic clip that electric pole outer side wall adapts, described elastic clip is circular with opening, the inner side of described elastic clip is uniformly distributed some climbings wheel, and described climbing wheel rotarily drives described elastic clip climbing electric pole;
Described elastic clip is provided with, by web plate, the locking latches that hoop is embraced in described first bracing wire of locking, described locking latches comprises leading screw, described leading screw matches with the screw on described web plate, the end of described leading screw is provided with folder pawl and to clamp or unclamps the fastening screw that hoop is embraced in described first bracing wire, and the translational motion that simultaneously does that described leading screw rotates drives described folder pawl tighten or unclamp the fastening screw that hoop is embraced in described first bracing wire.
For ease of the installation of elastic clip on electric pole, further technical scheme is: the opening place of described elastic clip is provided with bend bending laterally, round and smooth transition between described bend and described elastic clip.
Frictional force between elastic clip and electric pole surface during for reducing installation further, further technical scheme is: the transition position between described bend and described elastic clip is provided with roller, the axis of described roller and the axes normal of described climbing wheel.The friction that roller makes elastic clip when mounted and between electric pole is set and turns into rolling resistance from sliding friction so that the installation of elastic clip is more laborsaving.
Further technical scheme is: described climbing wheel is synchronously driven by remote controlled servo motor, and described leading screw is by driving without frame motor; Described leading screw is fixedly installed driving flange, described driving flange is fixedly connected with the described rotor without frame motor, the described rotor without frame motor drives described leading screw to rotate by described driving flange, described leading screw coordinate with the screw on described web plate thus realize described leading screw rotate do translational motion simultaneously.
When the quantity that hoop is embraced in bracing wire on device is more than one, being increased by the web plate on instrument, the fastening screw that hoop is embraced in each bracing wire corresponding arranges locking latches.
The invention has the beneficial effects as follows:
1, the device of a kind of equipment hoisting on the bar of overhead power transmission line road is provided, this device is not by the impact of geographical environment, it is specially adapted to rural power grids power construction, install simple, easy to use, cost is low, efficiency height, especially the construction dispute caused because large-scale machinery enters ground is avoided in rural area, improve operating efficiency, reduce executive cost. Adopting the fixing fixed pulley of the device of the present invention to not only solve switch touching lever phenomenon with the use of finding, and easy for installation, can carry out 360 ° of rotation, employing optimum orientation is fixed, and is convenient to staff and carries out switch and fix, during province, laborsaving. It is applicable on the bar of all kinds of geographical position and lifts work. Surplus can pay wages, reduce construction and compensate with rolling.
2, providing a kind of instrument installing the above-mentioned device of equipment hoisting on the bar of overhead power transmission line road, above-mentioned device can be installed to the eminence of electric pole by this instrument under the prerequisite without the need to manually ascending a height, and avoids the potential safety hazard manually ascended a height and install and bring.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention's embodiment of the device of equipment hoisting on the bar of overhead power transmission line road;
Fig. 2 is the partial top view of Fig. 1;
Fig. 3 is the structural representation of Fig. 1 middle pulley stationary installation;
Fig. 4 is the structural representation of the embodiment of setting tool of the present invention;
Fig. 5 be setting tool of the present invention leading screw and without frame motor coordinate structural representation.
In figure: 1 transverse arm, 2 vertical arm, 3 oblique arms, 4 lateral frames, hoop is embraced in 5 first bracing wires, and hoop is embraced in 6 the 2nd bracing wires, 7 fastening screws, 8 support bars, 9 pulley fixing devices, 10 elastic clips, 11 rollers, 12 climbing wheels, 13 leading screws, 14 folder pawls, 15 web plates, 16 driving flanges, 17 without frame motor.
Embodiment
Below in conjunction with Figure of description and specific embodiment, the invention will be further described:
As shown in Figure 1, the device of equipment hoisting on the bar of overhead power transmission line road, comprise the mast-up that transverse arm 1, vertical arm 2 and oblique arm 3 are formed, one end of described transverse arm 1 is fixedly connected with the pulley fixing device 9 for installing lifting pulley, the other end of described transverse arm 1 is fixedly connected with the first bracing wire and embraces hoop 5, and described transverse arm 1 is embraced hoop 5 by the first bracing wire and is arranged on electric pole; The lower section of described transverse arm 1 is fixedly connected with vertical arm 2, the bottom of described vertical arm 2 is fixedly connected with a lateral frame 4, the other end of described lateral frame 4 is fixedly connected with the 2nd bracing wire and embraces hoop 6, and described 2nd bracing wire is embraced the while that hoop 5 being embraced by hoop 6 with described first bracing wire and matched with electric pole; Oblique arm 3 it is installed with between described transverse arm 1 and described vertical arm 2.Transverse arm 1, vertical arm 2 and oblique arm 3 all adopt angle steel to form.
The bottom of vertical arm 2 is provided with lateral frame 4 and connects the 2nd bracing wire by lateral frame 4 and embrace hoop 6, reduce the 2nd bracing wire and embrace the shearing force of hoop suffered by 6, increase the physical strength that hoop 6 junctions are embraced in the 2nd bracing wire.
As shown in Figure 2, described transverse arm 1 and the first described bracing wire are embraced and are connected with oblique support bar 8 between hoop 5, and described support bar 8 is arranged in the zygomorphy of described transverse arm 1. Described lateral frame 4 and the 2nd described bracing wire are embraced and are connected with oblique support bar 8 between hoop 6, and described support bar 8 is arranged in the zygomorphy of described lateral frame 4.
As shown in Figure 3, described pulley fixing device 9 is U shape ring, and the described straight flange at U shape ring top is fixedly connected with the upper surface of described transverse arm 1. The straight flange at U shape ring top is fixedly connected with the upper surface of described transverse arm 1, it is fixed on the both sides of transverse arm 1 compared with traditional two ends by pulley fixing device 9 or it is fixed on the lower surface of transverse arm 1, substantially increase the firmness of connection, avoid the junction of hoisting process middle pulley stationary installation 9 and transverse arm 1 that cracking occurs, lifting pulley is arranged on U shape ring, very convenient.
Hoop 5 employing is embraced in first bracing wireBracing wire embrace hoop, the 2nd bracing wire embrace hoop 6 employingBracing wire embrace hoop, it is possible to adapting to that electric pole bottom is thick, constructional feature that top is thin, the fastening screw 7 that hoop 5 is embraced in the first bracing wire and hoop 6 is embraced in the 2nd bracing wire adopts 16 × 120 full screws.
For realizing installing above-mentioned device under the prerequisite without the need to ascending a height, the present invention also comprises the instrument of the device of equipment hoisting on the bar of overhead power transmission line road described in installation, as shown in Figure 4, described instrument comprises the elastic clip 10 adapted with electric pole outer side wall, described elastic clip 10 is the circle shape spring sheet with opening, the inner side of described elastic clip 10 is uniformly distributed some climbing wheels 12, and described climbing wheel 12 rotarily drives described elastic clip 10 and climbs electric pole.
On described elastic clip 10 by web plate 15 be provided with locking described first bracing wire embrace hoop 5 and the 2nd bracing wire embrace hoop 6 locking latches, because the structure of locking latches is consistent, so omitting part locking latches in the diagram, the locking latches matched to embrace hoop 5 with the first bracing wire is described:
Described locking latches comprises leading screw 13, described leading screw 13 matches with the screw on described web plate 15, the end of described leading screw 13 is provided with folder pawl 14 and to clamp or unclamps the fastening screw 7 that hoop 5 is embraced in described first bracing wire, and the translational motion that simultaneously does of described leading screw 13 rotation drives described folder pawl 14 tighten or unclamp the fastening screw 7 that hoop 5 is embraced in described first bracing wire.
The opening place of elastic clip 10 is provided with bend bending laterally, round and smooth transition between described bend and described elastic clip 10. Transition position between described bend and described elastic clip 10 is provided with roller 11, the axis of described roller 11 and the axes normal of described climbing wheel 12. The friction that roller 11 makes elastic clip 10 when mounted and between electric pole is set and turns into rolling resistance from sliding friction so that the installation of elastic clip 10 is more laborsaving.
Described climbing wheel 12 is driven by remote controlled servo motor, remote controlled servo motor is arranged on the side of climbing wheel 12, should ensureing that multiple climbing wheel 12 synchronously drives, remote controlled servo motor rotates forward or reversion, it is achieved climbing wheel 12 drive elastic clip 10 rises along electric pole or decline. For the frictional force strengthened between climbing wheel 12 and electric pole, climbing wheel 12 should adopt has the making of certain elastic elastomeric material, also little suction nozzle can be evenly set on climbing wheel 12 with the contact surface of electric pole, during climbing wheel 12 motion, the suction that motor drives climbing wheel 12 to overcome little suction nozzle moves, when climbing wheel 12 is static, little suction nozzle increases the reactive force between climbing wheel 12 and electric pole surface, increases its firm property.
As shown in Figure 5, described leading screw 13 is by driving without frame motor 17; Without frame motor 17, there is hollow rotor, described leading screw 13 is fixedly installed and drives flange 16, described driving flange 16 is fixedly connected with the described hollow rotor without frame motor 17, the described rotor without frame motor 17 drives described leading screw 13 to rotate by described driving flange 16, described leading screw 13 coordinate with the screw on described web plate 15 thus realize described leading screw 13 rotate do translational motion simultaneously. Control its realization rotate and reverse without being provided with device for controling phase in frame motor 17, by without the main story of frame motor 17 and reversion, it is achieved the to-and-fro movement of leading screw 13.
Folder pawl 14 is the clamping mechanism of machinery industry routine, pneumatic or electronic mode can be adopted to drive, to those skilled in the art, according to existing knowledge, folder pawl 14 can be arranged, its principle is not repeated them here, the surplus of the screw rod holding fastening screw 7 between folder pawl 14 and the end face of leading screw 13, should be reserved.
Remote controlled servo motor, without frame motor 17 and folder pawl 14 control device be integrated on a telepilot for operator in terrestrial operation.
For ease of the understanding of the present invention, the invention will be further described to install and use process below in conjunction with one:
During installation, now fixed pulley is arranged on pulley fixing device 9, then the first bracing wire of device is embraced hoop 5 and the 2nd bracing wire is embraced hoop and 6 is nested with on electric pole, the elastic clip 10 of instrument is placed in the lower section of device, corresponding for locking latches on instrument is nested with in the outside at fastening screw 7 both ends, the nut place at corresponding fastening screw 7 two ends of folder pawl 14. When installing elastic clip 10, being stuck on electric pole by its opening place and promote elastic clip 10 to the direction of electric pole, electric pole can support the inner side that the opening holding elastic clip 10 enters elastic clip 10, and after electric pole enters the inner side of elastic clip 10, elastic clip 10 resets. Because elastic clip 10 has elasticity, so it can hold electric pole automatically tightly so that climbing wheel 12 is tightly attached to electric pole surface, along with pole diameter change, elastic clip 10 also can automatic tightening so that climbing wheel 12 is close to electric pole surface all the time.
Operator's remote controller, start remote controlled servo motor, climbing wheel 12 drive elastic clip 10 is climbed above electric pole, and promotes described device to move above electric pole, after arriving desired height, stop climbing, folder pawl 14 clamps the nut of fastening screw 7, drives leading screw 13 to rotate without frame motor 17, and leading screw 13 does translational motion what rotate simultaneously, drive folder pawl 14 by the nut screwing clamping of fastening screw 7, the installation of finishing device on electric pole.
After completing installation, folder pawl 14 unclamps nut, and the rotor upset without frame motor 17 makes leading screw retreat, make between folder pawl 14 and fastening screw 7 without interfering, then remote controlled servo motor reversal, climbing wheel 12 drive elastic clip 10 drops to ground, is finally taken off from electric pole by elastic clip 10.
The support bar 8 of the present invention in the anisopleual installation of transverse arm 1 or lateral frame 4, can also not affect its function.
In the present invention, mast-up can around the first bracing wire embrace hoop 5 and the 2nd bracing wire embrace hoop 6 distribution multiple, realize the equipment hoisting of different azimuth simultaneously, when mast-up distribution multiple time, for increasing its balance, it is preferable that embrace hoop 5 around the first bracing wire and the 2nd bracing wire is embraced hoop and 6 is uniformly distributed.
The foregoing is only the better embodiment of the present invention; it is not whole embodiments of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all; any amendment of being done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Except technology feature described in specification sheets, all the other technology features are the technology of it is known to those with ordinary skill in the art that, are the innovative characteristics of outstanding the present invention, and above-mentioned technology feature does not repeat them here.
Claims (10)
1. the device of equipment hoisting on the bar of overhead power transmission line road, it is characterized in that, comprise at least one transverse arm, one end of described transverse arm is fixedly connected with the pulley fixing device for installing lifting pulley, the other end of described transverse arm is fixedly connected with the first bracing wire and embraces hoop, and described transverse arm is embraced hoop by the first bracing wire and is arranged on electric pole.
2. the device of equipment hoisting on the bar of overhead power transmission line road according to claim 1, it is characterized in that, the lower section of described transverse arm is fixedly connected with vertical arm, the bottom of described vertical arm is fixedly connected with a lateral frame, the other end of described lateral frame is fixedly connected with the 2nd bracing wire and embraces hoop, and described 2nd bracing wire is embraced the while that hoop being embraced by hoop with described first bracing wire and matched with electric pole.
3. the device of equipment hoisting on the bar of overhead power transmission line road according to claim 2, is characterized in that, is installed with oblique arm between described transverse arm and described vertical arm, and described transverse arm, vertical arm, tiltedly arm and lateral frame form mast-up jointly.
4. the device of equipment hoisting on the bar of overhead power transmission line road according to claim 1, it is characterized in that, described transverse arm and the first described bracing wire are embraced and are connected with oblique support bar between hoop, and described support bar is at the zygomorphy of described transverse arm or unsymmetrical arrangement.
5. the device of equipment hoisting on the bar of overhead power transmission line road according to claim 2, it is characterized in that, described lateral frame and the 2nd described bracing wire are embraced and are connected with oblique support bar between hoop, and described support bar is at the zygomorphy of described lateral frame or unsymmetrical arrangement.
6. the device of equipment hoisting on the bar of overhead power transmission line road according to claim 1, is characterized in that, described pulley fixing device is U shape ring, and the straight flange at described U shape ring top is fixedly connected with the upper surface of described transverse arm.
7. the instrument of the device of equipment hoisting on the bar of overhead power transmission line road according to claim 1 is installed, it is characterized in that, comprise and the elastic clip that electric pole outer side wall adapts, described elastic clip is circular with opening, the inner side of described elastic clip is uniformly distributed some climbings wheel, and described climbing wheel rotarily drives described elastic clip climbing electric pole;
Described elastic clip is provided with, by web plate, the locking latches that hoop is embraced in described first bracing wire of locking, described locking latches comprises leading screw, described leading screw matches with the screw on described web plate, the end of described leading screw is provided with folder pawl and to clamp or unclamps the fastening screw that hoop is embraced in described first bracing wire, and the translational motion that simultaneously does that described leading screw rotates drives described folder pawl tighten or unclamp the fastening screw that hoop is embraced in described first bracing wire.
8. instrument according to claim 7, is characterized in that, the opening place of described elastic clip is provided with bend bending laterally, round and smooth transition between described bend and described elastic clip.
9. instrument according to claim 8, is characterized in that, the transition position between described bend and described elastic clip is provided with roller, the axis of described roller and the axes normal of described climbing wheel.
10. instrument according to claim 7, is characterized in that, described climbing wheel is synchronously driven by remote controlled servo motor, and described leading screw is by driving without frame motor; Described leading screw is fixedly installed driving flange, described driving flange is fixedly connected with the described rotor without frame motor, the described rotor without frame motor drives described leading screw to rotate by described driving flange, described leading screw coordinate with the screw on described web plate thus realize described leading screw rotate do translational motion simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610179795.6A CN105668446B (en) | 2016-03-25 | 2016-03-25 | The device and its installation tool of equipment hoisting on overhead power line bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610179795.6A CN105668446B (en) | 2016-03-25 | 2016-03-25 | The device and its installation tool of equipment hoisting on overhead power line bar |
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| Publication Number | Publication Date |
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| CN105668446A true CN105668446A (en) | 2016-06-15 |
| CN105668446B CN105668446B (en) | 2018-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610179795.6A Active CN105668446B (en) | 2016-03-25 | 2016-03-25 | The device and its installation tool of equipment hoisting on overhead power line bar |
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Cited By (6)
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| CN108565746A (en) * | 2018-02-11 | 2018-09-21 | 国网山东省电力公司平阴县供电公司 | A kind of electrification installation panel switches mast-up |
| CN111017744A (en) * | 2019-11-01 | 2020-04-17 | 国网浙江嵊州市供电有限公司 | Small-size insulating hoist and mount frame of combination formula on pole |
| CN113200469A (en) * | 2021-04-16 | 2021-08-03 | 国网山东省电力公司枣庄供电公司 | Transformer hoisting machine |
| CN113863763A (en) * | 2021-10-15 | 2021-12-31 | 广东电网有限责任公司 | Automatic installation equipment for windproof stay wire |
| CN114877224A (en) * | 2022-05-10 | 2022-08-09 | 国网山东省电力公司莱州市供电公司 | Visual monitoring anti-theft support for steel pipe pole and mounting method thereof |
| CN115957458A (en) * | 2022-12-28 | 2023-04-14 | 湖南九怀通信工程有限公司 | Self-sliding protection system for high-altitude circuit erection hoop |
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| CN108565746A (en) * | 2018-02-11 | 2018-09-21 | 国网山东省电力公司平阴县供电公司 | A kind of electrification installation panel switches mast-up |
| CN111017744A (en) * | 2019-11-01 | 2020-04-17 | 国网浙江嵊州市供电有限公司 | Small-size insulating hoist and mount frame of combination formula on pole |
| CN113200469A (en) * | 2021-04-16 | 2021-08-03 | 国网山东省电力公司枣庄供电公司 | Transformer hoisting machine |
| CN113863763A (en) * | 2021-10-15 | 2021-12-31 | 广东电网有限责任公司 | Automatic installation equipment for windproof stay wire |
| CN114877224A (en) * | 2022-05-10 | 2022-08-09 | 国网山东省电力公司莱州市供电公司 | Visual monitoring anti-theft support for steel pipe pole and mounting method thereof |
| CN115957458A (en) * | 2022-12-28 | 2023-04-14 | 湖南九怀通信工程有限公司 | Self-sliding protection system for high-altitude circuit erection hoop |
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|---|---|
| CN105668446B (en) | 2018-05-11 |
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