CN115487438A - Anti-falling device for iron tower - Google Patents
Anti-falling device for iron tower Download PDFInfo
- Publication number
- CN115487438A CN115487438A CN202211116891.8A CN202211116891A CN115487438A CN 115487438 A CN115487438 A CN 115487438A CN 202211116891 A CN202211116891 A CN 202211116891A CN 115487438 A CN115487438 A CN 115487438A
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- locking
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- mounting seat
- iron tower
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
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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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- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
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Abstract
The invention belongs to the technical field of electric power overhaul and discloses an anti-falling device for an iron tower. The anti-falling device for the iron tower comprises a first locking mechanism, a second locking mechanism, a first unlocking mechanism and a second unlocking mechanism, and can ensure that an operator climbs the iron tower in the process, the left hand grips the first locking mechanism and the first unlocking mechanism, the right hand grips the second locking mechanism and the second unlocking mechanism, the left hand presses a second locking hook which can unlock the right hand by the first unlocking mechanism, the right hand moves one step upwards, then the right hand presses a first locking hook which unlocks the left hand by the second unlocking mechanism, the left hand moves one step upwards, the left hand and the right hand climb upwards alternately in a reciprocating mode, and the anti-falling device for the iron tower is simple in structure, improves the climbing speed and maintenance efficiency of the operator, and ensures the personal safety of the operator in the process of climbing the iron tower.
Description
Technical Field
The invention relates to the technical field of electric power overhaul, in particular to an iron tower falling prevention device.
Background
When the power transmission iron tower without the anti-falling guide rail is overhauled, an operator needs to use a safety belt to perform anti-falling protection when climbing the iron tower, namely, a main protection rope and a standby protection rope need to be fixed on steel of the iron tower in the process of going to the tower, namely, the one-step one-buckle going mode is adopted, and the speed of going to the tower is low. In order to improve the speed of climbing the tower, the operator can directly climb the tower without using a safety belt, and the high-altitude falling accident is caused when the safety belt is not used correctly.
Therefore, an anti-falling device for an iron tower is needed to solve the problems in the prior art.
Disclosure of Invention
The invention aims to provide a falling prevention device for an iron tower, which can improve the tower climbing speed under the condition of ensuring the safety of operators.
In order to achieve the purpose, the invention adopts the following technical scheme:
iron tower anti-falling device includes:
the first locking mechanism comprises a first locking hook, a first lock catch and a first torsion elastic piece, a first pin shaft is arranged on the first locking hook, the first lock catch is rotatably connected with the first pin shaft, the first torsion elastic piece is sleeved on the first pin shaft, one end of the first torsion elastic piece is abutted with the first lock catch, the other end of the first torsion elastic piece is abutted with the first lock catch, the first torsion elastic piece is configured to enable the first lock catch and the first lock catch to enclose and form a first limiting space, and a first foot nail is limited in the first limiting space;
the second locking mechanism comprises a second locking hook, a second lock catch and a second torsional elastic piece, a second pin shaft is arranged on the second locking hook, the second lock catch is rotatably connected with the second pin shaft, the second torsional elastic piece is sleeved on the second pin shaft, one end of the second torsional elastic piece is abutted against the second locking hook, the other end of the second torsional elastic piece is abutted against the second lock catch, the second torsional elastic piece is configured to enable the second lock catch and the second lock catch to enclose to form a second limiting space, and a second foot nail is limited in the second limiting space;
a first unlocking mechanism disposed on the first latch hook, the first unlocking mechanism configured to unlock the second locking mechanism;
a second unlocking mechanism disposed on the second latch hook, the second unlocking mechanism configured to unlock the first locking mechanism.
Optionally, the first latch hook further comprises a first avoidance groove, the first latch hook is arranged in the first avoidance groove, the second latch hook further comprises a second avoidance groove, and the second latch hook is arranged in the second avoidance groove.
Optionally, a first guiding inclined plane is arranged on the first latch, and the first guiding inclined plane is configured to guide the first latch when the first latch is hooked on the first nail, and a second guiding inclined plane is arranged on the second latch, and the second guiding inclined plane is configured to guide the second latch when the second latch is hooked on the second nail.
Optionally, the first lock hook and the first lock catch are both provided with a first anti-slip layer, and the second lock hook and the second lock catch are both provided with a second anti-slip layer.
Optionally, the first locking hook is provided with a first fixing hole, and the second locking hook is provided with a second fixing hole.
Optionally, first release mechanism includes first mount pad, first connecting rope and first unblock handle, first mount pad set up in on the first latch hook, first unblock handle with first mount pad rotates to be connected just first unblock handle is close to the one end butt of first mount pad is in on the first mount pad, first connecting rope one end with the second hasp is connected, the other end with first unblock handle is close to the one end of first mount pad is connected.
Optionally, the second unlocking mechanism includes a second mounting seat, a second connecting rope and a second unlocking handle, the second mounting seat is arranged on the second lock hook, the second unlocking handle is connected with the second mounting seat in a rotating mode, the second unlocking handle is close to the second mounting seat, two ends of the second mounting seat are abutted to the second mounting seat, one end of the second connecting rope is connected with the first lock catch, and the other end of the second connecting rope is close to the second unlocking handle.
Optionally, the first torsional elastic member and the second torsional elastic member are both torsion springs.
Optionally, the first and second latch hooks are both made of a metal material.
Optionally, the metal material is an aluminum alloy.
Has the advantages that:
the anti-falling device for the iron tower, provided by the invention, can ensure that an operator grips the first locking mechanism and the first unlocking mechanism by a left hand, grips the second locking mechanism and the second unlocking mechanism by a right hand, and presses the first unlocking mechanism by the left hand to unlock the second locking hook of the right hand, so that the second locking hook gripped by the right hand can be hooked on the second nail at a high position, the right hand advances one step upwards, and then the left hand loosens, and presses the second unlocking mechanism by the right hand to unlock the first locking hook of the left hand, so that the first locking hook of the left hand can be hooked on the first nail at the high position, the left hand advances one step upwards, and the left hand and the right hand climb alternately upwards in such a reciprocating way, so that the first locking mechanism and the second locking mechanism are always provided with one anti-falling protection for the operator.
Drawings
Fig. 1 is a schematic structural diagram of a steel tower anti-falling device provided by the invention;
fig. 2 is a schematic diagram of a tower structure in the prior art;
fig. 3 is a schematic structural diagram of a first locking mechanism and a first unlocking mechanism provided by the invention.
In the figure:
1000. an iron tower; 1100. a first foot pin; 1200. a second foot pin; 1300. connecting a soft rope;
100. a first locking mechanism; 110. a first latch hook; 111. a first avoidance slot; 112. a first fixing hole; 120. a first lock catch; 121. a first guide slope; 130. a first limit space; 140. a first support base;
200. a second locking mechanism; 210. a second latch hook; 211. a second avoidance slot; 212. a second fixing hole; 220. a second lock catch; 221. a second guide slope; 230. a second spacing space; 240. a second support seat;
300. a first unlocking mechanism; 310. a first mounting seat; 320. a first connecting rope; 330. a first unlocking handle;
400. a second unlocking mechanism; 410. a second mounting seat; 420. a second connecting rope; 430. a second unlocking handle.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
Example one
The embodiment provides a steel tower anti-falling device which can be connected with an existing whole-body safety belt to provide anti-falling protection for an operator in the process of climbing a tower, as shown in figures 1, 2 and 3, the anti-falling device comprises a first locking mechanism 100, a second locking mechanism 200, a first unlocking mechanism 300 and a second unlocking mechanism 400, wherein the first locking mechanism 100 comprises a first locking hook 110, a first locking buckle 120 and a first torsion elastic part, the first locking hook 110 is provided with a first pin shaft, the first locking buckle 120 is rotatably connected with the first pin shaft, the first torsion elastic part is sleeved on the first pin shaft, one end of the first torsion elastic part is abutted against the first locking hook 110, the other end of the first torsion elastic part is abutted against the first locking buckle 120, the first torsion elastic part is used for enabling the first locking buckle 120 and the first locking hook 110 to enclose and form a first limiting space 130, and the first pin 1100 is limited in the first limiting space 130, thereby locking the first latch hook 110 to the first leg nail 1100, the second locking mechanism 200 includes a second latch hook 210, a second latch 220 and a second torsional elastic member, the second latch hook 210 is provided with a second pin, the second latch 220 is rotatably connected with the second pin, the second torsional elastic member is sleeved on the second pin, one end of the second torsional elastic member is abutted against the second latch hook 210, the other end is abutted against the second latch 220, the second torsional elastic member is used for forming a second limiting space 230 between the second latch 220 and the second latch hook 210, the second leg nail 1200 is limited in the second limiting space 230, therefore, the second locking hook 210 is locked on the second leg nail 1200, the first unlocking mechanism 300 is disposed on the first locking hook 110, the first unlocking mechanism 300 is used for unlocking the second locking mechanism 200, the second unlocking mechanism is disposed on the second locking hook 210, and the second unlocking mechanism 400 is used for unlocking the first locking mechanism 100.
The anti-falling device for the iron tower provided by the embodiment can ensure that an operator can climb the iron tower 1000, the first locking mechanism 100 and the first unlocking mechanism 300 are held by the left hand, the second locking mechanism 200 and the second unlocking mechanism 400 are held by the right hand, the first unlocking mechanism 300 can unlock the second locking hook 210 of the right hand by pressing the first unlocking mechanism 300 by the left hand, the second locking hook 210 held by the right hand can be hooked on the second foot nail 1200 at a high position, the right hand advances one step upwards, the left hand is loosened at the moment, the first locking hook 110 of the left hand is unlocked by pressing the second unlocking mechanism 400 by the right hand, the first locking hook 110 of the left hand can be hooked on the first foot nail 1100 at the high position, the left hand advances one step upwards, the left hand and the right hand climb upwards alternately, the first locking mechanism 100 and the second locking mechanism 200 are ensured to provide anti-falling protection for the operator, the iron tower device is simple in structure, the speed and the maintenance efficiency of the operator climbing the iron tower 1000 are improved, the personal safety of the operator in the safety belt, and the whole body falling of the operator is effectively reduced, even if the falling range of the operator falls after the falling operation.
Preferably, as shown in fig. 1, the first latch hook 110 further includes a first avoiding groove 111, the first latch hook 120 is disposed in the first avoiding groove 111, the first latch hook 120 is ensured to be smoothly opened, the size of the first latch hook 110 is reduced, the material consumption is reduced, and therefore the cost is saved, the second latch hook 210 further includes a second avoiding groove 211, the second latch hook 220 is disposed in the second avoiding groove 211, and the size of the second latch hook 210 is reduced while the second latch hook 220 is ensured to be smoothly opened.
Preferably, as shown in fig. 1 and 3, the first locking catch 120 is provided with a first guiding inclined surface 121, and the first guiding inclined surface 121 can play a guiding role when the first locking hook 110 is buckled on the first leg nail 1100 from top to bottom, so as to reduce the resistance when the first locking hook 110 is hung on the first leg nail 1100. The second lock catch 220 is provided with a second guiding inclined surface 221, and the second guiding inclined surface 221 can play a guiding role when the second lock hook 210 is hooked on the second leg nail 1200 from top to bottom, so that the resistance of the second lock hook 210 hooked on the second leg nail 1200 is reduced.
Preferably, the first latch hook 110 and the first latch 120 are both provided with a first anti-slip layer, and the first anti-slip layer increases the friction between the palm of the operator and the first latch mechanism 100, so as to ensure that the operator can firmly grasp the first latch mechanism 100, and further ensure the safety of the operator. The second lock hook 210 and the second lock catch 220 are provided with second anti-slip layers, the second anti-slip layers can increase friction force between the palm of the operator and the second locking mechanism 200, the operator can firmly grasp the second locking mechanism 200, and safety of the operator is further guaranteed. In particular, the first and second anti-slip layers may both be made of a rubber material.
Preferably, as shown in fig. 1, the first locking hook 110 is provided with a first fixing hole 112, the first fixing hole 112 is used for connecting the first locking hook 110 with the full body harness through a connecting cord 1300, the second locking hook 210 is provided with a second fixing hole 212, and the second fixing hole 212 is used for connecting the second locking hook 210 with the full body harness through the connecting cord 1300.
Preferably, as shown in fig. 1, the first unlocking mechanism 300 includes a first mounting seat 310, a first connecting rope 320 and a first unlocking handle 330, the first mounting seat 310 is disposed on the first locking hook 110, the first unlocking handle 330 is rotatably connected to the first mounting seat 310, one end of the first unlocking handle 330 close to the first mounting seat 310 abuts against the first mounting seat 310, one end of the first connecting rope 320 is connected to the second locking catch 220, the other end of the first unlocking handle 330 is connected to one end of the first unlocking handle 330 close to the first mounting seat 310, the first unlocking handle 330 is pressed, the first unlocking handle 330 is rotated around a hinge point with the first mounting seat 310, and the second locking catch 220 can be pulled by the first connecting rope 320 to rotate so as to unlock the second locking mechanism 200. Specifically, in the present embodiment, the first connecting rope 320 is a brake cable, and the first latch hook 110 is provided with the first supporting seat 140 for supporting an outer skin of the brake cable.
Preferably, as shown in fig. 1, the second unlocking mechanism 400 includes a second mounting seat 410, a second connecting rope 420 and a second unlocking handle 430, the second mounting seat 410 is disposed on the second locking hook 210, the second unlocking handle 430 is rotatably connected to the second mounting seat 410, two ends of the second unlocking handle 430 close to the second mounting seat 410 abut against the second mounting seat 410, one end of the second connecting rope 420 is connected to the first locking device 120, the other end of the second connecting rope is connected to one end of the second unlocking handle close to the second mounting seat 410, pressing the second unlocking handle 430 can rotate the second unlocking handle 430 around a hinge point with the second mounting seat 410, and the first locking device 120 can be pulled to rotate through the second connecting rope 420 to unlock the first locking mechanism 100. Specifically, in this embodiment, the second connecting rope 420 is a brake cable, and the second locking hook 210 is provided with a second supporting seat 240 for supporting a sheath of the brake cable.
Optionally, the first torsional elastic member and the second torsional elastic member are both torsion springs, which have good elasticity and low cost, and can ensure the locking force of the first lock catch 120 and the second lock catch 220, thereby saving the cost.
Optionally, the first locking hook 110 and the second locking hook 210 are both made of a metal material, so that the structural strength of the first locking hook 110 and the second locking hook 210 is ensured, and the safety of the worker during falling is ensured.
Further, the metal material is aluminum alloy, and the first latch hook 110 and the second latch hook 210 of aluminum alloy material are light in weight, and high in strength, can alleviate the intensity of labour of operation personnel in the climbing process.
Carry out two
The iron tower anti-falling device provided by the embodiment is basically the same as the first embodiment, and is different from the first embodiment in that the iron tower anti-falling device further comprises an illuminating assembly, the illuminating assembly comprises a first illuminating lamp and a second illuminating lamp, the first illuminating lamp is arranged on the first locking hook 110, the second illuminating lamp is arranged on the second locking hook 210, and the illuminating assembly can illuminate when light is dark, so that an operator can accurately hang the first locking hook 110 on the first foot nail 1100, and accurately hang the second locking hook 210 on the second foot nail 1200, and the safety of the operator in the process of climbing the iron tower 1000 is further improved.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. Iron tower anti-falling device, its characterized in that includes:
the first locking mechanism (100) comprises a first locking hook (110), a first locking buckle (120) and a first torsion elastic piece, wherein a first pin shaft is arranged on the first locking hook (110), the first locking buckle (120) is rotatably connected with the first pin shaft, the first torsion elastic piece is sleeved on the first pin shaft, one end of the first torsion elastic piece is abutted against the first locking hook (110), the other end of the first torsion elastic piece is abutted against the first locking buckle (120), the first torsion elastic piece is configured to enable the first locking buckle (120) and the first locking hook (110) to enclose and form a first limiting space (130), and a first foot nail (1100) is limited in the first limiting space (130);
the second locking mechanism (200) comprises a second locking hook (210), a second locking buckle (220) and a second torsional elastic piece, a second pin shaft is arranged on the second locking hook (210), the second locking buckle (220) is rotatably connected with the second pin shaft, the second torsional elastic piece is sleeved on the second pin shaft, one end of the second torsional elastic piece is abutted against the second locking hook (210), the other end of the second torsional elastic piece is abutted against the second locking buckle (220), the second torsional elastic piece is configured to enable the second locking buckle (220) and the second locking hook (210) to enclose to form a second limiting space (230), and a second foot nail (1200) is limited in the second limiting space (230);
a first unlocking mechanism (300) provided on the first latch hook (110), the first unlocking mechanism (300) being configured to unlock the second locking mechanism (200);
a second unlocking mechanism (400) provided on the second locking hook (210), the second unlocking mechanism (400) being configured to unlock the first locking mechanism (100).
2. The iron tower anti-falling device according to claim 1, characterized in that the first locking hook (110) further comprises a first avoiding groove (111), the first locking hook (120) is disposed in the first avoiding groove (111), the second locking hook (210) further comprises a second avoiding groove (211), and the second locking hook (220) is disposed in the second avoiding groove (211).
3. The device as claimed in claim 1, wherein a first guiding slope (121) is disposed on the first locking hook (120), the first guiding slope (121) is configured to guide the first locking hook (110) when being hung on the first pin (1100), a second guiding slope (221) is disposed on the second locking hook (220), and the second guiding slope (221) is configured to guide the second locking hook (210) when being hung on the second pin (1200).
4. The iron tower anti-falling device according to claim 1, characterized in that a first anti-slip layer is arranged on each of the first locking hook (110) and the first locking buckle (120), and a second anti-slip layer is arranged on each of the second locking hook (210) and the second locking buckle (220).
5. The device as claimed in claim 1, wherein the first locking hook (110) is provided with a first fixing hole (112), and the second locking hook (210) is provided with a second fixing hole (212).
6. The anti-falling device for the iron tower as claimed in claim 1, wherein the first unlocking mechanism (300) comprises a first mounting seat (310), a first connecting rope (320) and a first unlocking handle (330), the first mounting seat (310) is disposed on the first locking hook (110), the first unlocking handle (330) is rotatably connected with the first mounting seat (310), one end of the first unlocking handle (330) close to the first mounting seat (310) abuts against the first mounting seat (310), one end of the first connecting rope (320) is connected with the second locking catch (220), and the other end of the first unlocking handle (330) is connected with one end close to the first mounting seat (310).
7. The anti-falling device for the iron tower as claimed in claim 1, wherein the second unlocking mechanism (400) comprises a second mounting seat (410), a second connecting rope (420) and a second unlocking handle (430), the second mounting seat (410) is disposed on the second locking hook (210), the second unlocking handle (430) is rotatably connected with the second mounting seat (410), two ends of the second unlocking handle (430) close to the second mounting seat (410) are abutted against the second mounting seat (410), one end of the second connecting rope (420) is connected with the first locking buckle (120), and the other end of the second connecting rope is connected with one end of the second unlocking handle (430) close to the second mounting seat (410).
8. The iron tower fall arrest device according to claim 1, wherein the first and second torsional springs are torsion springs.
9. The device as claimed in claim 1, wherein the first locking hook (110) and the second locking hook (210) are made of metal material.
10. The iron tower anti-falling device of claim 9, wherein the metal material is an aluminum alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211116891.8A CN115487438B (en) | 2022-09-14 | 2022-09-14 | Anti-falling device for iron tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211116891.8A CN115487438B (en) | 2022-09-14 | 2022-09-14 | Anti-falling device for iron tower |
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| Publication Number | Publication Date |
|---|---|
| CN115487438A true CN115487438A (en) | 2022-12-20 |
| CN115487438B CN115487438B (en) | 2023-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211116891.8A Active CN115487438B (en) | 2022-09-14 | 2022-09-14 | Anti-falling device for iron tower |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2954912A1 (en) * | 2010-01-06 | 2011-07-08 | Zedel | Anti-fall apparatus for assuring cord during working in heights, has control lever operated in load state of apparatus to move apart blocking device with respect to bottom of chute that progressively releases cam device |
| CN205612897U (en) * | 2016-05-16 | 2016-10-05 | 贵州电网有限责任公司输电运行检修分公司 | Novel safety belt couple |
| CN106267740A (en) * | 2016-08-14 | 2017-01-04 | 方兴 | A kind of with climbing function, synchronize open and clamping, can join seat belt hands insure fastener seat |
| CN111544861A (en) * | 2020-06-02 | 2020-08-18 | 国网湖南省电力有限公司 | Handheld anti-falling safety device matched with safety belt and application method thereof |
| CN113827884A (en) * | 2021-10-27 | 2021-12-24 | 广东电网有限责任公司 | Anti-falling device |
| CN114100010A (en) * | 2021-11-24 | 2022-03-01 | 广东电网有限责任公司 | Anti-falling device |
| CN114712743A (en) * | 2022-04-01 | 2022-07-08 | 广东电网有限责任公司 | Anti-falling tower climbing device |
-
2022
- 2022-09-14 CN CN202211116891.8A patent/CN115487438B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2954912A1 (en) * | 2010-01-06 | 2011-07-08 | Zedel | Anti-fall apparatus for assuring cord during working in heights, has control lever operated in load state of apparatus to move apart blocking device with respect to bottom of chute that progressively releases cam device |
| CN205612897U (en) * | 2016-05-16 | 2016-10-05 | 贵州电网有限责任公司输电运行检修分公司 | Novel safety belt couple |
| CN106267740A (en) * | 2016-08-14 | 2017-01-04 | 方兴 | A kind of with climbing function, synchronize open and clamping, can join seat belt hands insure fastener seat |
| CN111544861A (en) * | 2020-06-02 | 2020-08-18 | 国网湖南省电力有限公司 | Handheld anti-falling safety device matched with safety belt and application method thereof |
| CN113827884A (en) * | 2021-10-27 | 2021-12-24 | 广东电网有限责任公司 | Anti-falling device |
| CN114100010A (en) * | 2021-11-24 | 2022-03-01 | 广东电网有限责任公司 | Anti-falling device |
| CN114712743A (en) * | 2022-04-01 | 2022-07-08 | 广东电网有限责任公司 | Anti-falling tower climbing device |
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| Publication number | Publication date |
|---|---|
| CN115487438B (en) | 2023-08-11 |
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