CN214141460U - Portable lifting auxiliary device for live-wire work - Google Patents
Portable lifting auxiliary device for live-wire work Download PDFInfo
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- CN214141460U CN214141460U CN202022660274.7U CN202022660274U CN214141460U CN 214141460 U CN214141460 U CN 214141460U CN 202022660274 U CN202022660274 U CN 202022660274U CN 214141460 U CN214141460 U CN 214141460U
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Abstract
The utility model relates to a portable lifting auxiliary device for live-wire work, which comprises a power component, an energy component, an equipotential component and a track control rope; the power assembly and the energy assembly are fixedly hung on a cross arm of the iron tower respectively, the power assembly is connected with the energy assembly and supplies power through the energy assembly, an insulating rope is wound on the power assembly, the tail end of the insulating rope is connected with the equipotential assembly, and the power assembly winds and retracts the insulating rope through positive and negative rotation so that the equipotential assembly can be lifted; one end of the track control rope is fixed at the insulator hanging point of the cross arm of the iron tower, and the other end of the track control rope is connected with the equipotential component. Through the utility model discloses, the super high voltage overhead transmission line operation can be accomplished to single, and can the self-control elevating speed, and then reduce the activity duration by a wide margin, reduce intensity of labour, reduce the manufacturing cost of enterprise. In addition, the emergency rescue device can be used as emergency rescue equipment, the emergency disposal capacity of a live working site is improved, and the safety of operating personnel, line equipment and a power grid is guaranteed.
Description
Technical Field
The utility model relates to a high tension transmission line live working technical field, in particular to live working is with portable lift auxiliary device.
Background
The ultrahigh voltage overhead transmission line is a junction line connected between power grids at present, and defects of a large number of electrical parts are processed in a live working mode. Before the work of replacing the damaged or lightning-struck straight insulator of the ultrahigh voltage overhead transmission line, repairing a broken strand wire and the like in an electrified way, firstly, an equipotential electrician needs to be sent into a strong electric field by using a hanging basket, and the equipotential electrician is taken back to a tower by using the same method after the work is finished.
The most common mode for equipotential electricians of the ultrahigh voltage overhead transmission line to enter a strong electric field at present is that 2-3 equipotential electricians on a tower cooperate with an insulating pulley block to control the speed of a hanging basket to send the equipotential electricians into or withdraw from the strong electric field, and the lifting process is completely operated by hands and is very laborious; the number of tools and instruments required for operation is large, the operation flow is complex, and the operation time is large. During the process of sending the equipotential electrician into or out of the strong electric field, the potential electrician has the possibility of falling off the hand carelessly during operation; when entering or exiting the strong electric field, the equipotential electrician cannot control the speed and rhythm of entering or exiting the strong electric field by itself, and the equipotential electrician is passive. If the weather changes suddenly, corresponding emergency measures and rescue equipment are lacked in the current operation site, and the operation cannot be dealt with in time, so that the safety of operation personnel, line equipment and a power grid is seriously threatened.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a live working is with portable lift auxiliary device.
The utility model adopts the technical proposal that:
a portable lifting auxiliary device for live working comprises a power assembly, an energy assembly, an equipotential assembly and a track control rope; the power assembly and the energy assembly are fixedly hung on a cross arm of the iron tower respectively, the power assembly is connected with the energy assembly and supplies power through the energy assembly, an insulating rope is wound on the power assembly, the tail end of the insulating rope is connected with the equipotential assembly, and the power assembly winds and retracts the insulating rope through positive and negative rotation so that the equipotential assembly can be lifted; one end of the track control rope is fixed at an insulator hanging point of the cross arm of the iron tower, and the other end of the track control rope is connected with the equipotential component.
Preferably, the power assembly consists of a winch and a bearing hanging frame; the winch is provided with a clutch control switch, a dual-purpose control box and a remote controller, and is connected with the energy component through a power supply wiring terminal, and an insulating rope is wound on the winch; the bearing hanging rack is composed of a winch bearing plate, a gravity center adjusting screw rod, a first yoke plate and a plate type hook, the winch bearing plate is symmetrically arranged at the middle part of a winch, the upper part of the winch bearing plate is a triangular plate with a round hole, the lower part of the winch bearing plate is a bending plate, the bending plate is connected with the winch through a bolt, the gravity center adjusting screw rod penetrates through the round hole and is fixed between the winch bearing plates through a clamp spring, the first yoke plate is movably sleeved on the gravity center adjusting screw rod and is positioned through the gravity center adjusting bolt on the gravity center adjusting screw rod, the bottom of the plate type hook is rotatably connected with the first yoke plate, and the hook body part of the plate type hook is hung with.
Preferably, a second yoke plate is fixedly sleeved on the gravity center adjusting screw rod and is positioned between the winch bearing plates, and a cylindrical hook capable of being clamped into the plate type hook body is arranged on the second yoke plate.
Preferably, the energy component consists of a mobile power supply, a power supply fixing bag and a power line, wherein the mobile power supply is a lithium battery and is connected with a power supply wiring terminal of the winch through the power line; the mobile power supply is placed in the power supply fixing bag, and the power supply fixing bag is fixed on the cross arm of the iron tower.
Preferably, the equipotential assembly is composed of an equipotential pendulum ladder, a pendulum ladder hanging ring, a force dividing plate, a pendulum ladder pedaling rod and a pendulum ladder seat rod, the equipotential pendulum ladder is a cylinder, the top of the equipotential pendulum ladder is hung on the force dividing plate through the pendulum ladder hanging ring, and the bottom and the middle of the equipotential pendulum ladder are respectively connected with the pendulum ladder pedaling rod and the pendulum ladder seat rod through a pendulum ladder hinge in a rotating manner; the swing ladder pedaling rod and the swing ladder seat rod are respectively symmetrically arranged at two sides of the equipotential swing ladder; the force distribution plate is provided with a plurality of through holes, the through holes are respectively hung with a lock catch, and the force distribution plate is connected with an insulating rope and a track control rope on the winch through the lock catch.
Preferably, the insulating rope on the winch is connected with the lock catch on the component force plate through the electronic dynamometer.
Preferably, the winch bearing plate is also provided with a function expansion hole, and a self-locking pulley lifter is hung through the function expansion hole; a first single pulley is further arranged at the hanging position of an insulating rope on the winch and the force distribution plate, and the insulating rope is hung on the force distribution plate through the first single pulley; and meanwhile, a backup insulating rope is additionally arranged, one end of the backup insulating rope is hung with the function expansion hole on the winch bearing plate, and the other end of the backup insulating rope sequentially bypasses the first single pulley and the self-locking pulley lifter.
Preferably, the winch bearing plate is also provided with a function expansion hole, and a second single pulley and a self-locking pulley lifter are respectively hung through the function expansion hole; a first single pulley is further arranged at the hanging position of an insulating rope on the winch and the force distribution plate, and the insulating rope is hung on the force distribution plate through the first single pulley; and meanwhile, a backup insulating rope is additionally arranged, one end of the backup insulating rope is hung at the top of the first single pulley, and the other end of the backup insulating rope sequentially bypasses the second single pulley, the first single pulley and the self-locking pulley lifter.
Preferably, the portable lifting auxiliary device for live working is further provided with a backup protection assembly, and the backup protection assembly is composed of an insulating woven belt, a falling protector and a buffer bag; the insulating woven belt is a high-strength belt-type insulator and can be contracted in the falling protector with the speed difference self-locking function, and one end of the insulating woven belt is connected with the buffer bag through a lock catch; the falling protector is fixedly hung on the cross arm of the iron tower.
The utility model has the advantages that:
the utility model provides a pair of portable lift auxiliary device is used in live working has characteristics such as light in weight, simple to operate, laborsaving handy. When sending into or withdraw from the strong electric field with the equipotential electrician, do not need instruments such as insulating assembly pulley and hanging flower basket, the operation of superhigh pressure overhead transmission line can be accomplished to one person, and can control the elevating speed by oneself, the rhythm when getting into or withdrawing from the strong electric field to can reduce the activity duration by a wide margin, reduce live working personnel's intensity of labour, reduce the manufacturing cost of enterprise, improve live working personnel's work efficiency by a wide margin, reduce operation personnel safety risk, improve the available coefficient of transmission line, promote transmission line power supply reliability. Meanwhile, if the weather changes suddenly, the emergency rescue device can be used as emergency rescue equipment to evacuate operators in time, the emergency handling capacity of the live working site can be improved, the self-confidence and the capacity of the operators in the working site for dealing with emergency situations are enhanced, and the safety of the operators, line equipment and a power grid is guaranteed.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 and 3 are schematic enlarged structural views of the present invention;
fig. 4 and 5 are schematic structural views of the power assembly of the present invention;
fig. 6 is a schematic structural diagram of an equipotential component according to the present invention;
fig. 7 and fig. 8 are schematic structural views of two labor-saving systems of the lifting auxiliary device of the present invention.
In the drawings 1-8, 1-power component, 2-energy component, 3-equipotential component, 4-track control rope, 5-insulating rope, 6-backup protection component, 7-windlass, 8-bearing hanging rack, 9-clutch control switch, 10-dual-purpose control box, 11-remote controller, 12-power binding post, 13-windlass bearing plate, 14-gravity center adjusting screw, 15-first connecting plate, 16-plate type hook, 17-gravity center adjusting bolt, 18-second connecting plate, 19-column type hook, 20-mobile power supply, 21-power supply fixing bag, 22-power line, 23-equipotential pendulum ladder, 24-pendulum ladder hanging ring, 25-force dividing plate, 26-pendulum ladder pedal rod, 27-pendulum ladder seat rod, 28-pendulum ladder hinge, 29-self-locking electronic dynamometer, 30-pulley lifter, 31-first single pulley, 32-second single pulley, 33-insulating braid, 34-a safety catch and 35-a buffer bag.
Detailed Description
The technical solution in the embodiments of the present invention will be clear and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.
As shown in fig. 1 to 6, the present invention relates to a portable lifting auxiliary device for hot-line work, which comprises a power assembly 1, an energy assembly 2, an equipotential assembly 3, and a trajectory control rope 4. The power component 1 and the energy component 2 are fixedly hung on an iron tower cross arm respectively, the power component 1 is connected with the energy component 2 and supplies power through the energy component 2, an insulating rope 5 is wound on the power component 1, the tail end of the insulating rope 5 is connected with the equipotential component 3, the power component 1 stretches and retracts the insulating rope 5 through positive and negative rotation, and the equipotential component 3 can ascend and descend. And one end of the track control rope 4 is fixed at an insulator hanging point of the cross arm of the iron tower, and the other end of the track control rope is connected with the equipotential component 3.
The power assembly 1 is composed of a winch 7 and a bearing hanging frame 8. The winch 7 is provided with a clutch control switch 9, a dual-purpose control box 10 and a remote controller 11, and is connected with the energy component 2 through a power supply wiring terminal 12, and the insulating rope 5 is wound on the winch 7; the rotation speed of the winch 7 can be switched by the clutch control switch 9, and the dual-purpose control box 10 can realize wired control and wireless remote control on the winch 7. The bearing hanging rack 8 is composed of a winch bearing plate 13, a gravity center adjusting screw 14, a first yoke plate 15 and a plate type hook 16, the winch bearing plate 13 is symmetrically arranged in the middle of the winch 7, the upper portion of the winch bearing plate is a triangular plate with a round hole, the lower portion of the winch bearing plate is a bending plate, the bending plate is in bolted connection with the winch 7, the gravity center adjusting screw 14 penetrates through the round hole and is fixed between the winch bearing plates 13 through a clamp spring, the first yoke plate 15 is movably sleeved on the gravity center adjusting screw 14 and is positioned through a gravity center adjusting bolt 17 on the gravity center adjusting screw 14, the bottom of the plate type hook 16 is rotatably connected with the first yoke plate 15, and the hook body portion of the plate type hook is connected with an insulating rope hanging sleeve on a cross arm of an iron tower.
The energy component 2 is composed of a mobile power supply 20, a power supply fixing bag 21 and a power line 22, wherein the mobile power supply 20 is a lithium battery and is connected with a power terminal 12 of the winch 7 through the power line 22. The mobile power supply 20 is placed in the power supply fixing bag 21, and the power supply fixing bag 21 is fixed on the cross arm of the iron tower.
The equipotential assembly 3 is composed of an equipotential swing ladder 23, a swing ladder hanging ring 24, a force dividing plate 25, a swing ladder pedal rod 26 and a swing ladder seat rod 27, the equipotential swing ladder 23 is a cylinder, the top of the equipotential swing ladder is hung with the force dividing plate 25 through the swing ladder hanging ring 24, and the bottom and the middle of the equipotential swing ladder are respectively connected with the swing ladder pedal rod 26 and the swing ladder seat rod 27 through a swing ladder hinge 28 in a rotating manner. The swing ladder stepping rod 26 and the swing ladder seat rod 27 are respectively symmetrically arranged at two sides of the equipotential swing ladder 23. The force dividing plate 25 is made of high-strength aluminum alloy materials, the surface of the force dividing plate is subjected to hard anodizing treatment, a plurality of through holes are formed in the force dividing plate, lock catches are hung in the through holes respectively, and the force dividing plate 25 is connected with the insulating rope 5 and the track control rope 4 on the winch 7 through the lock catches.
This portable lift auxiliary device for live working's power component 1 is used for advancing for the equipotential electrician, goes out the electric field and provides power, and energy component 2 provides energy output for power component 1, and equipotential component 3 facilitates for the equipotential electrician advances, goes out the electric field, makes the equipotential electrician can master the atress condition in real time, promotes the operation security, and trajectory control rope 4 is used for ensuring that the equipotential electrician advances according to the orbit of presetting in the process of descending and rising. When the power component 2 is installed, a ground electrician is matched with an electrician on the tower to lift the power component 1 and the energy component 2 to a proper position of the cross arm of the iron tower and fix the power component and the energy component; then, after a track control rope 4 with the length of the insulator string is measured, one end of the track control rope 4 is fixed at an insulator hanging point of the cross arm of the iron tower, and the other end of the track control rope 4 is in lock catch connection with a force dividing plate 25 of the equipotential component 3; and finally, the insulating rope 5 on the winch 7 is connected with the force distribution plate 25 of the equipotential component 3 in a locking manner. During the use, will put the ladder and step pole 26 and the pendulum ladder seat pole 27 of ladder both sides and rotate to the level, the equipotential electrician can be sat on the pendulum ladder seat pole 27 of equipotential subassembly 3, and the both feet are trampled pendulum ladder and are stepped on pole 26 simultaneously, and positive reverse rotation is received and released insulating rope 5 to hoist machine 7 through remote controller 11 control, makes equipotential subassembly 3 and equipotential electrician can go up and down to send into or withdraw from the strong electric field, carries out empty high voltage transmission line live working.
It should be noted that the utility model discloses a focus adjusting bolt 17 on the focus adjusting screw 14 can adjust the position of first yoke plate 15 suit on focus adjusting screw 14 to form the location, thereby guarantee that power component 1, insulating rope 5, equipotential subassembly 3 and the ascending focus of equipotential electrician in vertical side can not produce great skew, and then provide safeguard for sending into or withdraw from the strong electric field process. In addition, the force distribution plate 25 of the equipotential component 3 is a porous design, which can provide a hanging point for other tool materials and the remote controller 11 used in live working.
In order to further prevent the equipotential electrician from falling, the portable lifting auxiliary device for hot-line work is further provided with a backup protection assembly 6, and the backup protection assembly 6 is composed of an insulating braid 33, a safety catch 34 and a buffer bag 35. The insulation braid 33 is a high-strength belt-type insulator and can be retracted into the falling protector 34, automatically retracted into the falling protector 34 in a non-working state, and automatically extended out along with an equipotential electrician in a working state. One end of the insulating woven belt 33 is connected with the buffer bag 35 through a lock catch, the equipotential electrician can wear the safety belt, and the safety belt is connected with the buffer bag 35 through the lock catch. The falling protector 34 is fixedly hung on a cross arm of an iron tower, has a speed difference self-locking function and provides moisture-proof and dust-proof protection for the insulating braid 33.
As shown in fig. 7-8, the present invention further provides two labor-saving systems for the auxiliary lifting device, which are respectively 2:1 and 3:1, and are backup emergency measures of the device, if the power heat of the motor of the winding engine 7 is attenuated or damaged during the use process, and the power of the mobile power source 20 is insufficient or fails, the equipotential electrician can be manually lifted by the labor-saving system, thereby preventing the failure of the lifting function of the portable auxiliary lifting device for hot-line work due to unexpected factors. Wherein, the 2:1 labor-saving system is designed as follows: the winch bearing plate 13 is also provided with a function expansion hole, and a self-locking pulley lifter 30 is hung through the function expansion hole. A first single pulley 31 is further arranged at the hanging position of the insulating rope 5 and the component force plate 25 on the winch 7, and the insulating rope 5 is hung on the component force plate 25 through the first single pulley 31. And meanwhile, a backup insulating rope 36 is additionally arranged, one end of the backup insulating rope 36 is hung with the function expansion hole on the winch bearing plate 13, and the other end of the backup insulating rope passes by the first single pulley 31 and the self-locking pulley lifter 30 in sequence. The 3:1 labor-saving system is designed as follows: the winch bearing plate 13 is also provided with function expanding holes, and a second single pulley 32 and a self-locking pulley lifter 30 are respectively hung through the function expanding holes. A first single pulley 31 is further arranged at the hanging position of the insulating rope 5 and the component force plate 25 on the winch 7, and the insulating rope 5 is hung on the component force plate 25 through the first single pulley 31. Meanwhile, a backup insulating rope 36 is additionally arranged, one end of the backup insulating rope 36 is hung at the top of the first single pulley 31, and the other end of the backup insulating rope 36 sequentially bypasses the second single pulley 32, the first single pulley 31 and the self-locking pulley lifter 30.
In order to be matched and convenient for connecting tower materials of the iron tower, a second gusset plate 18 is fixedly sleeved on the gravity center adjusting screw 14 of the bearing hanging rack 8, the second gusset plate 18 is positioned between the winch bearing plates 13, and a cylindrical hook 19 which can be clamped into a hook body of the plate type hook 16 is arranged on the second gusset plate 18. Can be connected with the tower material of the iron tower through the cylindrical hook 19. In addition, an electronic load cell 29 may be added to facilitate the equipotential electrician to know at any time whether the weight load exceeds the maximum load of the insulated rope 5 and the hoist 7. The insulating rope 5 on the winch 7 can be connected with the lock catch on the component force plate 25 through the electronic load cell 29, so that an equipotential electrician can check the weight load through the electronic load cell 29 at any time.
Claims (9)
1. The utility model provides a portable lift auxiliary device for live working which characterized in that: the portable lifting auxiliary device for hot-line work comprises a power assembly, an energy assembly, an equipotential assembly and a track control rope; the power assembly and the energy assembly are fixedly hung on a cross arm of the iron tower respectively, the power assembly is connected with the energy assembly and supplies power through the energy assembly, an insulating rope is wound on the power assembly, the tail end of the insulating rope is connected with the equipotential assembly, and the power assembly winds and retracts the insulating rope through positive and negative rotation so that the equipotential assembly can be lifted; one end of the track control rope is fixed at an insulator hanging point of the cross arm of the iron tower, and the other end of the track control rope is connected with the equipotential component.
2. The portable lifting assist device for hot-line work according to claim 1, characterized in that: the power assembly consists of a winch and a bearing hanging frame; the winch is provided with a clutch control switch, a dual-purpose control box and a remote controller, and is connected with the energy component through a power supply wiring terminal, and an insulating rope is wound on the winch; the bearing hanging rack is composed of a winch bearing plate, a gravity center adjusting screw rod, a first yoke plate and a plate type hook, the winch bearing plate is symmetrically arranged at the middle part of a winch, the upper part of the winch bearing plate is a triangular plate with a round hole, the lower part of the winch bearing plate is a bending plate, the bending plate is connected with the winch through a bolt, the gravity center adjusting screw rod penetrates through the round hole and is fixed between the winch bearing plates through a clamp spring, the first yoke plate is movably sleeved on the gravity center adjusting screw rod and is positioned through the gravity center adjusting bolt on the gravity center adjusting screw rod, the bottom of the plate type hook is rotatably connected with the first yoke plate, and the hook body part of the plate type hook is hung with an insulating rope sleeve on a cross arm of an iron tower.
3. The portable lifting assist device for hot-line work according to claim 2, characterized in that: and a second yoke plate is fixedly sleeved on the gravity center adjusting screw rod and is positioned between the winch bearing plates, and a cylindrical hook capable of being clamped into the plate type hook body is arranged on the second yoke plate.
4. The portable lifting assist device for hot-line work according to claim 2, characterized in that: the energy component consists of a mobile power supply, a power supply fixing bag and a power line, wherein the mobile power supply is a lithium battery and is connected with a power supply wiring terminal of the winch through the power line; the mobile power supply is placed in the power supply fixing bag, and the power supply fixing bag is fixed on the cross arm of the iron tower.
5. The portable lifting assist device for hot-line work according to claim 2, characterized in that: the equipotential assembly is composed of an equipotential pendulum ladder, a pendulum ladder hanging ring, a force dividing plate, a pendulum ladder pedaling rod and a pendulum ladder seat rod, the equipotential pendulum ladder is a cylinder, the top of the equipotential pendulum ladder is hung on the force dividing plate through the pendulum ladder hanging ring, and the bottom and the middle of the equipotential pendulum ladder are respectively connected with the pendulum ladder pedaling rod and the pendulum ladder seat rod through pendulum ladder hinges in a rotating manner; the swing ladder pedaling rod and the swing ladder seat rod are respectively symmetrically arranged at two sides of the equipotential swing ladder; the force distribution plate is provided with a plurality of through holes, the through holes are respectively hung with a lock catch, and the force distribution plate is connected with an insulating rope and a track control rope on the winch through the lock catch.
6. The portable lifting assist device for hot-line work according to claim 5, characterized in that: and an insulating rope on the winch is connected with a lock catch on the component force plate through an electronic dynamometer.
7. The portable lifting assist device for hot-line work according to claim 5, characterized in that: the winch bearing plate is also provided with a function expansion hole, and a self-locking pulley lifter is hung through the function expansion hole; a first single pulley is further arranged at the hanging position of an insulating rope on the winch and the force distribution plate, and the insulating rope is hung on the force distribution plate through the first single pulley; and meanwhile, a backup insulating rope is additionally arranged, one end of the backup insulating rope is hung with the function expansion hole on the winch bearing plate, and the other end of the backup insulating rope sequentially bypasses the first single pulley and the self-locking pulley lifter.
8. The portable lifting assist device for hot-line work according to claim 5, characterized in that: the winch bearing plate is also provided with a function expansion hole, and a second single pulley and a self-locking pulley lifter are respectively hung through the function expansion hole; a first single pulley is further arranged at the hanging position of an insulating rope on the winch and the force distribution plate, and the insulating rope is hung on the force distribution plate through the first single pulley; and meanwhile, a backup insulating rope is additionally arranged, one end of the backup insulating rope is hung at the top of the first single pulley, and the other end of the backup insulating rope sequentially bypasses the second single pulley, the first single pulley and the self-locking pulley lifter.
9. The portable lifting assist device for hot-line work according to claim 1, characterized in that: the portable lifting auxiliary device for live working is also provided with a backup protection assembly, wherein the backup protection assembly consists of an insulating braid, a falling protector and a buffer bag; the insulating woven belt is a high-strength belt-type insulator and can be contracted in the falling protector with the speed difference self-locking function, and one end of the insulating woven belt is connected with the buffer bag through a lock catch; the falling protector is fixedly hung on the cross arm of the iron tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022660274.7U CN214141460U (en) | 2020-11-17 | 2020-11-17 | Portable lifting auxiliary device for live-wire work |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022660274.7U CN214141460U (en) | 2020-11-17 | 2020-11-17 | Portable lifting auxiliary device for live-wire work |
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| CN214141460U true CN214141460U (en) | 2021-09-07 |
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| CN202022660274.7U Active CN214141460U (en) | 2020-11-17 | 2020-11-17 | Portable lifting auxiliary device for live-wire work |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112357847A (en) * | 2020-11-17 | 2021-02-12 | 云南电网有限责任公司曲靖供电局 | Portable lifting auxiliary device for live-wire work |
| CN116101910A (en) * | 2022-12-01 | 2023-05-12 | 中铁广州工程局集团有限公司 | Prefabricated slab beam lifting system of hoisting machine |
-
2020
- 2020-11-17 CN CN202022660274.7U patent/CN214141460U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112357847A (en) * | 2020-11-17 | 2021-02-12 | 云南电网有限责任公司曲靖供电局 | Portable lifting auxiliary device for live-wire work |
| CN112357847B (en) * | 2020-11-17 | 2024-04-12 | 云南电网有限责任公司曲靖供电局 | Portable lifting auxiliary device for live working |
| CN116101910A (en) * | 2022-12-01 | 2023-05-12 | 中铁广州工程局集团有限公司 | Prefabricated slab beam lifting system of hoisting machine |
| CN116101910B (en) * | 2022-12-01 | 2024-04-19 | 中铁广州工程局集团有限公司 | Prefabricated slab beam lifting system of hoisting machine |
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