CN117712916B - Anti-falling device for power maintenance - Google Patents
Anti-falling device for power maintenance Download PDFInfo
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- CN117712916B CN117712916B CN202311672700.0A CN202311672700A CN117712916B CN 117712916 B CN117712916 B CN 117712916B CN 202311672700 A CN202311672700 A CN 202311672700A CN 117712916 B CN117712916 B CN 117712916B
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- rotating shaft
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The invention discloses an anti-falling device for power maintenance, which relates to the field of power maintenance. The invention is provided with the anti-skid mechanism and the stretching mechanism, so that the rotating shaft rotates, the rotating shaft is fixedly connected with the gear, when the gear rotates, the toothed plate horizontally moves along the sliding groove of the limiting block through the meshing connection between the gear and the toothed plate, when the toothed plate horizontally moves, the fixed block drives the fixed clamp to horizontally move, the pulling directions of the two groups of spring springs are opposite, the two groups of rotating shafts reversely rotate, and therefore the two groups of fixed clamps gather towards the middle, and the fixed clamp is tightly attached to the outer side of the telegraph pole, so that the risk of falling of operators is avoided.
Description
Technical Field
The invention relates to the field of power maintenance, in particular to an anti-falling device for power maintenance.
Background
The electric power is energy source by taking electric energy as power, the electric power is found in the 70 th century of 19 th, the application of the electric power is found to raise the second industrialization climax, the electric power is one of the third technological revolution occurring in the world since the 18 th century of human history, the life of people is changed from this technology, the large-scale electric power system appearing in the 202 th century is one of important achievement in the human engineering science history, and is an electric power production and consumption system consisting of links of power generation, power transmission, power transformation, power distribution, power consumption and the like, and the electric power is supplied to users through the power transmission, power transformation and power distribution after the primary energy source in the nature is converted into electric power through a mechanical energy device.
In the prior art, the bolt and the nut and other fixing mechanisms are required to be manually rotated by an operator, so that the anti-falling device is fixed on the outer side of the telegraph pole, and then one end of the safety rope is fixed on the waist of the operator, and when the safety rope is pulled, the safety rope is locked, so that the operator is ensured not to fall down all the time, and the safety of the operator is ensured.
In the prior art, and when operating personnel have to shake before falling, anti-falling device can't accomplish to shake before falling and carry out fixing device in the outside of wire pole, and the safety rope among the prior art only has one to be fixed in operating personnel's waist generally, and only relies on a safety rope of being fixed in operating personnel's waist, easily causes the potential safety hazard to operating personnel owing to falling.
Disclosure of Invention
Based on this, the present invention aims to provide a fall protection device for power maintenance, so as to solve the technical problems mentioned in the background.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an anti-falling device for power maintenance, includes fixed shell, fixed shell's inboard is provided with anti-skidding mechanism, and anti-skidding mechanism is including fixation clamp, telescopic link, spring telescopic link, fixed block and pinion rack, the fixation clamp sets up in fixed shell's inboard, and the telescopic link sets up between fixed shell and fixation clamp end, spring telescopic link sets up between fixed shell and fixation clamp, and the fixed block sets up in the end of fixation clamp to the pinion rack sets up in the end of fixed block.
Through adopting above-mentioned technical scheme, through the setting of fixation clamp, guaranteed to press from both sides tightly to the wire pole, and through the setting of telescopic link and spring telescopic link, guaranteed that two sets of fixation clamps are closely laminated with the wire pole, guaranteed its stability, drive the removal of fixed block through the pinion rack to drive two sets of fixation clamp horizontal migration, guaranteed two sets of fixation clamp horizontal migration, thereby guaranteed to the clamping and the lax of wire pole.
The invention is further characterized in that the tail end of the fixing clamp is provided with a limiting block, the fixing clamp is symmetrically provided with two groups relative to the limiting block, one end of the fixing clamp is provided with an inclined surface, and the other end of the fixing clamp is provided with a semicircle.
Through adopting above-mentioned technical scheme, be provided with two sets of through the fixation clamp about stopper symmetry, ensured that two sets of fixation clamps tighten the wire pole, set up to the inclined plane through the one end of fixation clamp, ensured the wire pole of different diameters through the inclined plane of fixation clamp tip for the fixation clamp presss from both sides the wire pole of different diameters, sets up to the semicircle through the other end of fixation clamp, has ensured that two sets of fixation clamps are circular, thereby has ensured to tighten the wire pole, has improved its safety precaution.
The invention is further arranged that an upper group of sliding grooves and a lower group of sliding grooves are arranged on one side of the limiting block close to the fixing clamp, and the sliding grooves arranged on one side of the limiting block close to the fixing clamp are connected with the fixing blocks through sliding grooves.
Through adopting above-mentioned technical scheme, two sets of spouts about leaning on one side of fixation clamp through the stopper have ensured that the level drives fixation clamp and stably move, two sets of spouts about leaning on one side of fixation clamp setting through the stopper have ensured the pinion rack and have driven the fixed block to drive the fixation clamp and lean on one side of fixation clamp to carry out horizontal migration at the stopper, thereby ensured that two sets of fixation clamps press from both sides the wire pole.
The invention is further arranged that the inner side of the limiting block is provided with the stretching mechanism, the stretching mechanism comprises a rotating shaft, a clockwork spring, a gear and a clamping block, the rotating shaft is arranged at the inner side of the limiting block, the clockwork spring is arranged at the outer side of the rotating shaft, the gear is arranged at two ends of the rotating shaft, and the clamping block is arranged at the tail end of the clockwork spring.
Through adopting above-mentioned technical scheme, through pulling clockwork spring for the pivot rotates, and when loosening clockwork spring, through clockwork spring's elasticity, makes clockwork spring reset, thereby makes the pivot reverse, through the setting of gear, has ensured when the pivot rotates, makes the gear rotate in step, and the fixture block sets up in clockwork spring's end, sets up in clockwork spring's end through the fixture block, has ensured when pulling clockwork spring, drives the pivot through the fixture block and rotates.
The invention is further characterized in that a U-shaped through groove is formed in the inner side of the rotating shaft, and the clamping block is in clamping connection with the U-shaped through groove formed in the inner side of the rotating shaft.
Through adopting above-mentioned technical scheme, through the block and the block connection that the inboard "U" type that sets up of pivot leads to the groove and constitutes, when having ensured pulling clockwork spring for the block drives the pivot and rotates.
The invention is further arranged that the stretching mechanism is provided with two groups at the inner sides of the limiting blocks, one group of spring is arranged at the upper half part of one group of rotating shafts, and the other group of spring is arranged at the lower half part of the other group of rotating shafts.
Through adopting above-mentioned technical scheme, through being provided with two sets of stretching mechanism in the inboard of stopper, ensured to be provided with two sets of safety measures, through two sets of clockwork springs of setting up from top to bottom, ensured that two sets of clockwork springs can not twine.
The invention is further characterized in that the two sets of rotating shafts are provided with guide posts, the upper part and the lower part of each guide post are provided with sliding grooves, the thickness of each sliding groove is consistent with that of the clockwork spring, and the clockwork spring is tightly attached to the sliding groove of each guide post.
Through adopting above-mentioned technical scheme, the spout that part set up about through the guide post has guaranteed that two sets of clockwork springs remove along the spout of guide post, through the inseparable laminating between clockwork spring and the guide post spout outer wall, has guaranteed to lead clockwork spring.
The invention is further characterized in that the inner sides of the rotating shaft and the limiting block are connected through bearings, the rotating shaft is fixedly connected with gears at two ends, and the gears are in meshed connection with the toothed plate.
Through adopting above-mentioned technical scheme, through the bearing connection between pivot and the stopper, and fixed connection between pivot and the gear, when having ensured pulling clockwork spring for the pivot rotates, thereby drives the gear and rotates, when the gear rotates, through the meshing connection between gear and the pinion rack, when having ensured the gear rotation, make the pinion rack drive fixed block and fixation clamp horizontal migration, thereby ensured that two sets of fixation clamps remove to the wire pole, make to press from both sides the wire pole.
In summary, the invention has the following advantages:
1. According to the invention, the anti-skid mechanism is arranged, the fixing clamps face the telegraph pole, the device is pushed forwards, at the moment, the telegraph pole moves towards two sides along the inclined plane of the fixing clamps, at the moment, the device is continuously pushed, the telegraph pole is positioned at the inner sides of the circular arcs of the two groups of fixing clamps, at the moment, the fixing clamps are tightly attached to the outer sides of the telegraph pole through the extrusion of the telescopic rods and the spring telescopic rods, and therefore the preliminary fixing of the device is completed;
2. According to the invention, the spring is pulled by the clamping block arranged at the tail end of the spring and the rotating shaft through the clamping connection between the clamping block and the rotating shaft, the rotating shaft is rotated, the two groups of gears are rotated through the fixed connection between the rotating shaft and the gears, when the gears rotate, the toothed plate horizontally moves along the sliding groove of the limiting block through the meshed connection between the gears and the toothed plate, and when the toothed plate horizontally moves, the fixing block drives the fixing clamp to horizontally move, the pulling directions of the two groups of spring are opposite, the two groups of rotating shafts are reversely rotated, so that the two groups of fixing clamps are gathered towards the middle, and the fixing clamp is tightly attached to the outer side of the telegraph pole, thereby ensuring that the risk of falling of operators is avoided.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of an anti-skid mechanism according to the present invention;
FIG. 3 is a cross-sectional view of a stop block of the present invention;
FIG. 4 is a schematic structural diagram of a connection mode between the anti-slip mechanism and the limiting block according to the present invention;
FIG. 5 is an enlarged schematic view of the structure of the present invention at A;
FIG. 6 is a schematic structural diagram of a connection mode of the stretching mechanism and the guide post according to the present invention;
Fig. 7 is a schematic structural view of the stretching mechanism of the present invention.
In the figure: 1. a fixed housing; 2. an anti-slip mechanism; 201. a fixing clamp; 202. a telescopic rod; 203. a spring telescoping rod; 204. a fixed block; 205. a toothed plate; 3. a limiting block; 4. a stretching mechanism; 401. a rotating shaft; 402. a clockwork spring; 403. a gear; 404. a clamping block; 5. and a guide post.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
Hereinafter, an embodiment of the present invention will be described in accordance with its entire structure.
Examples
The utility model provides a power repair is with preventing weighing down device, as shown in fig. 1, fig. 2 and fig. 3, including fixed shell 1, fixed shell 1's inboard is provided with anti-skidding mechanism 2, and anti-skidding mechanism 2 is including mounting clip 201, telescopic link 202, spring telescopic link 203, fixed block 204 and pinion rack 205, mounting clip 201 sets up in fixed shell 1's inboard, and telescopic link 202 sets up between fixed shell 1 and mounting clip 201 end, spring telescopic link 203 sets up between fixed shell 1 and mounting clip 201, through the setting of mounting clip 201, clamping to the wire pole has been ensured, and through the setting of telescopic link 202 and spring telescopic link 203, two sets of mounting clips 201 and wire pole closely laminate, its stability has been ensured, and the fixed block 204 sets up in the end of mounting clip 201, and pinion rack 205 sets up in the end of fixed block 204, through the removal of pinion rack 205 drive fixed block 204, thereby drive two sets of mounting clips 201 horizontal migration, ensure two sets of mounting clips 201 horizontal migration, thereby ensure the clamping and relaxation to the wire pole.
Referring to fig. 1,2 and 3, the end of the fixing clip 201 is provided with a limiting block 3, and the fixing clip 201 is symmetrically provided with two groups about the limiting block 3, and two groups of fixing clips 201 are symmetrically provided with two groups about the limiting block 3 through the fixing clip 201, so that the two groups of fixing clips 201 are ensured to clamp the telegraph pole, one end of the fixing clip 201 is provided with an inclined surface, the telegraph poles with different diameters are ensured to pass through the inclined surface of the end of the fixing clip 201, the fixing clip 201 clamps the telegraph poles with different diameters, the other end of the fixing clip 201 is provided with a semicircle, and the other end of the fixing clip 201 is provided with a semicircle, so that the two groups of fixing clips 201 are ensured to clamp the telegraph pole, and the safety measures are improved.
Referring to fig. 2,3 and 4, the upper and lower sets of sliding grooves formed on one side of the fixing clip 201 by the limiting block 3 ensure that the fixing clip 201 is driven to move stably horizontally, and the sliding grooves formed on one side of the limiting block 3 by the fixing clip 201 are connected with the fixing blocks 204 by the sliding grooves formed on one side of the limiting block 3 by the fixing clip 201, so that the toothed plate 205 drives the fixing blocks 204, and the fixing clip 201 is driven to move horizontally on one side of the limiting block 3 by the fixing clip 201, so that the two sets of fixing clips 201 clamp a telegraph pole.
Referring to fig. 4, 5, 6 and 7, the stretching mechanism 4 is disposed on the inner side of the limiting block 3, the stretching mechanism 4 includes a rotating shaft 401, a spring 402, a gear 403 and a clamping block 404, the rotating shaft 401 is disposed on the inner side of the limiting block 3, the spring 402 is disposed on the outer side of the rotating shaft 401, when the spring 402 is pulled to rotate the rotating shaft 401 and is released, the spring 402 is reset through elasticity of the spring 402, so that the rotating shaft 401 is reversed, the gear 403 is disposed at two ends of the rotating shaft 401, by means of the arrangement of the gear 403, it is ensured that the gear 403 synchronously rotates when the rotating shaft 401 rotates, the clamping block 404 is disposed at the tail end of the spring 402, and when the spring 402 is pulled, it is ensured that the rotating shaft 401 is driven to rotate through the clamping block 404.
Examples
Referring to fig. 6 and 7, for further explanation of the stretching mechanism 4 according to the second embodiment of the present invention, a "U" shaped through slot is provided on the inner side of the rotating shaft 401, and the clamping block 404 is in clamping connection with the "U" shaped through slot provided on the inner side of the rotating shaft 401, so that the clamping block 404 drives the rotating shaft 401 to rotate when the spring 402 is pulled by the clamping block 404.
Referring to fig. 3, 5 and 6, the stretching mechanism 4 is provided with two sets at the inner side of the limiting block 3, by providing two sets of stretching mechanisms 4 at the inner side of the limiting block 3, two sets of safety measures are ensured, one set of spring 402 is arranged at the upper half part of one set of rotating shaft 401, the other set of spring 402 is arranged at the lower half part of the other set of rotating shaft 401, and by two sets of spring 402 arranged up and down, the two sets of spring 402 are ensured not to be wound.
Referring to fig. 3 and 6, two sets of rotating shafts 401 are provided with guide posts 5, the upper and lower parts of the guide posts 5 are provided with sliding grooves, the sliding grooves formed in the upper and lower parts of the guide posts 5 ensure that two sets of spring 402 move along the sliding grooves of the guide posts 5, the thickness of the sliding grooves is consistent with that of the spring 402, the spring 402 is tightly attached to the sliding grooves of the guide posts 5, and the spring 402 is ensured to be guided through the tight attachment between the spring 402 and the outer wall of the sliding grooves of the guide posts 5.
Referring to fig. 3, fig. 4, fig. 5 and fig. 6, the inner side of the rotating shaft 401 and the inner side of the limiting block 3 are in bearing connection, the rotating shaft 401 is fixedly connected with the gears 403 at two ends, the rotating shaft 401 is connected with the gears 403 through the bearing between the rotating shaft 401 and the limiting block 3, and the fixed connection between the rotating shaft 401 and the gears 403 ensures that when the spring 402 is pulled, the rotating shaft 401 rotates, so that the gears 403 are driven to rotate, and the gears 403 are in meshed connection with the toothed plate 205, when the gears 403 rotate, the toothed plate 205 drives the fixing blocks 204 and the fixing clips 201 to horizontally move when the gears 403 rotate, so that the two groups of fixing clips 201 are ensured to move towards the telegraph pole, and the telegraph pole is clamped.
The working principle of the invention is as follows: when the circuit is required to be maintained on the high-altitude telegraph pole, the fixing clamp 201 is firstly opposite to the telegraph pole, the device is pushed forward, at this time, the telegraph pole is along the inclined plane of the fixing clamp 201, two groups of fixing clamps 201 move to two sides, at this time, the device is continuously pushed, the telegraph pole is positioned on the inner sides of the circular arcs of the two groups of fixing clamps 201, at this time, the fixing clamp 201 is tightly attached to the outer sides of the telegraph pole through extrusion of the telescopic rod 202 and the spring telescopic rod 203 to the fixing clamp 201, preliminary fixing of the device is completed, then an operator pulls the spring 402, safety of the operator is ensured, if the operator suddenly drops in high-altitude maintenance power, at this time, the spring 402 is pulled fast, the clamping blocks 404 arranged at the tail ends of the spring 402 are connected with the rotating shaft 401, the rotating shaft 401 is rotated, and the two groups of gears 403 are fixedly connected, and the two groups of gears 403 are rotated, when the gears 403 rotate, the gears 403 are connected with the toothed plates 205 in a meshed mode, the toothed plates 205 are horizontally move along the sliding grooves 205 of the limiting block 3, the two groups of gears 205 are horizontally move, the two groups of gears are horizontally move, the two groups of gears are horizontally move, and the two groups of the rotating clamps are reversely, and the two groups of the rotating clamps are enabled to be tightly attached to the rotating, and the two shafts are enabled to rotate, and are reversely and are enabled to rotate, and are opposite to move, and are opposite to the rotating and are opposite to the electric shafts 201.
Although embodiments of the invention have been shown and described, the detailed description is to be construed as exemplary only and is not limiting of the invention as the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and modifications, substitutions, variations, etc. may be made in the embodiments as desired by those skilled in the art without departing from the principles and spirit of the invention, provided that such modifications are within the scope of the appended claims.
Claims (4)
1. The utility model provides a power repair is with preventing weighing down device, includes fixed shell (1), its characterized in that: the inner side of the fixed shell (1) is provided with an anti-slip mechanism (2), the anti-slip mechanism (2) comprises a fixed clamp (201), a telescopic rod (202), a spring telescopic rod (203), a fixed block (204) and a toothed plate (205), the fixed clamp (201) is arranged on the inner side of the fixed shell (1), the telescopic rod (202) is arranged between the fixed shell (1) and the tail end of the fixed clamp (201), the spring telescopic rod (203) is arranged between the fixed shell (1) and the fixed clamp (201), the fixed block (204) is arranged at the tail end of the fixed clamp (201), the toothed plate (205) is arranged at the tail end of the fixed block (204), the tail end of the fixed clamp (201) is provided with a limit block (3), one side of the limit block (3) close to the fixed clamp (201) is provided with an upper chute and a lower chute, the limit block (3) close to the fixed block (204) is connected with the chute arranged on one side of the fixed clamp (201) to form a chute, the inner side of the limit block (3) is provided with a stretching mechanism (4), the stretching mechanism (403) comprises a gear (401), the spring (401) and a rotating shaft (401) is arranged on the outer side of the rotating shaft (402) and the rotating shaft (401) is arranged on the rotating shaft (402), the gear (403) is arranged at two ends of the rotating shaft (401), the clamping blocks (404) are arranged at the tail ends of the clockwork springs (402), U-shaped through grooves are formed in the inner side of the rotating shaft (401), the clamping blocks (404) are connected with the U-shaped through grooves formed in the inner side of the rotating shaft (401) in a clamping mode, guide posts (5) are arranged between the rotating shaft (401), sliding grooves are formed in the upper portion and the lower portion of the guide posts (5), the thickness of the sliding grooves is identical to that of the clockwork springs (402), and the clockwork springs (402) are tightly attached to the sliding grooves of the guide posts (5).
2. The fall arrest device for power maintenance according to claim 1, wherein: two groups of fixing clips (201) are symmetrically arranged on the limiting block (3), one end of each fixing clip (201) is provided with an inclined surface, and the other end of each fixing clip (201) is provided with a semicircular shape.
3. The fall arrest device for power maintenance according to claim 1, wherein: the stretching mechanism (4) is provided with two groups at the inner side of the limiting block (3), one group of clockwork springs (402) are arranged at the upper half part of one group of rotating shafts (401), and the other group of clockwork springs (402) are arranged at the lower half part of the other group of rotating shafts (401).
4. A fall arrest device for power maintenance according to claim 3, wherein: the inner sides of the rotating shaft (401) and the limiting block (3) are connected through bearings, the rotating shaft (401) is fixedly connected with the gears (403) at the two ends, and the gears (403) are connected with the toothed plate (205) in a meshed mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311672700.0A CN117712916B (en) | 2023-12-07 | 2023-12-07 | Anti-falling device for power maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311672700.0A CN117712916B (en) | 2023-12-07 | 2023-12-07 | Anti-falling device for power maintenance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117712916A CN117712916A (en) | 2024-03-15 |
| CN117712916B true CN117712916B (en) | 2024-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311672700.0A Active CN117712916B (en) | 2023-12-07 | 2023-12-07 | Anti-falling device for power maintenance |
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| Country | Link |
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| CN (1) | CN117712916B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118723083A (en) * | 2024-07-26 | 2024-10-01 | 河北黑牛电力金具有限公司 | UAV anti-fall device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5799753A (en) * | 1994-01-05 | 1998-09-01 | Peltier; Marcel Jose | Anti-fall security apparatus |
| CN213642892U (en) * | 2020-09-21 | 2021-07-09 | 拉弗莱防坠落系统科技(苏州)有限公司 | Automatic contraction falling protector for outdoor climbing |
| CN116920293A (en) * | 2023-07-08 | 2023-10-24 | 国网山东省电力公司菏泽市定陶区供电公司 | A safety belt fixing and anti-falling device for substation maintenance |
| CN116950438A (en) * | 2023-07-31 | 2023-10-27 | 贵州电网有限责任公司 | Anti-falling device for wall operation |
| CN117039726A (en) * | 2023-10-10 | 2023-11-10 | 国网江苏省电力有限公司 | Anti-falling device and method for power tool for high-altitude power maintenance |
-
2023
- 2023-12-07 CN CN202311672700.0A patent/CN117712916B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5799753A (en) * | 1994-01-05 | 1998-09-01 | Peltier; Marcel Jose | Anti-fall security apparatus |
| CN213642892U (en) * | 2020-09-21 | 2021-07-09 | 拉弗莱防坠落系统科技(苏州)有限公司 | Automatic contraction falling protector for outdoor climbing |
| CN116920293A (en) * | 2023-07-08 | 2023-10-24 | 国网山东省电力公司菏泽市定陶区供电公司 | A safety belt fixing and anti-falling device for substation maintenance |
| CN116950438A (en) * | 2023-07-31 | 2023-10-27 | 贵州电网有限责任公司 | Anti-falling device for wall operation |
| CN117039726A (en) * | 2023-10-10 | 2023-11-10 | 国网江苏省电力有限公司 | Anti-falling device and method for power tool for high-altitude power maintenance |
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| Publication number | Publication date |
|---|---|
| CN117712916A (en) | 2024-03-15 |
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