Anti-falling protection device applied to electric power system climbing tower

Abstract

The invention provides an anti-falling protection device applied to tower climbing of a power system, and relates to the field of power transmission tower safety facility components for power transmission lines. The anti-falling protection device applied to tower climbing of the power system comprises a rigid rail and a steel strand, an anti-derailing device is installed at the lowest end of the rigid rail, the end position, connected with a power tower, of the steel strand is close to the rigid rail, and the end, close to the rigid rail, of the steel strand is connected with the rigid rail through a wire and used for achieving local current conduction. According to the anti-falling protection device applied to tower climbing of the electric power system, the transverse steel strand and the longitudinal rigid rail are connected through the wire, and current is transmitted to the transverse steel strand and the longitudinal rigid rail, so that an operator in the later period can only hang a safety hook on the steel strand and unlock the anti-falling device on the rigid rail after the current is transmitted; the safety hook and the anti-falling device have a strict use sequence, and a worker cannot directly unlock the anti-falling device by breaking the sequence through fluke mind, so that the transfer is safer.

Description

Technical Field

[0001] This invention relates to the field of safety facility components for transmission towers used in power transmission lines, specifically a fall protection device for climbing power towers. Background Technology

[0002] During the maintenance of power transmission lines on power towers, workers need to climb to the top of the tower and then walk horizontally to reach the work site. Currently, the common safety measures used by workers during high-altitude tower climbing include rail-mounted fall protection and double safety belt alternating protection. The double safety belt method involves adding a protective belt to a traditional safety belt to form a double safety belt. The two safety belts are used alternately for climbing to ensure that at least one safety belt can connect the person to the tower during the climb, ensuring that a fall accident does not occur. Rail-mounted fall protection uses fall arresters to prevent falls.

[0003] Currently, when the safety protection device on the safety belt worn by power workers is connected to the tower footings on the power tower, if the collar of the safety protection device is directly put on the tower footing, it is difficult for the collar to be stably put on the tower footing. Once the collar is separated from the tower footing, the safety protection function for power workers will be lost. Therefore, most power towers are now equipped with fall arrestor tracks, which can avoid the problem of the traditional collar falling off the footing when used with fall arrestors.

[0004] Current fall arrestor rails mainly consist of a fixing mechanism, a sliding mechanism, and a braking mechanism. They are designed to provide comprehensive safety for power workers climbing transmission towers, effectively preventing falls and protecting their lives. The fixing mechanism securely connects the device to the designated location on the transmission tower, ensuring a solid and reliable foundation for the entire protective device. The sliding mechanism connects to the safety rope worn by the worker, allowing it to slide smoothly along the tower as the worker climbs without affecting normal climbing operations. The braking mechanism is the core of the device; when a worker accidentally loses their footing and begins to fall, it quickly responds and activates the braking function, using strong friction or mechanical locking force between itself and the tower to prevent further fall.

[0005] However, when climbing the tower, the fall arrestor needs to be protected against accidental unlocking. After climbing the tower along the rigid track, when it is necessary to inspect the cable along the way, the safety belt hook needs to be hooked onto the steel strand, and then the fall arrestor on the track needs to be unlocked. There is a strict order for using the fall arrestor and the safety belt hook. If the operator does not operate in the correct order, or if the operator takes a chance, it may cause serious consequences. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a fall protection device for climbing power system towers, solving the problems mentioned in the background section.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solution: a fall protection device for climbing power system towers, comprising a rigid rail and steel strands, wherein an anti-derailment device is installed at the lowest end of the rigid rail, and the end of the steel strands connected to the power tower is close to the rigid rail, and the end of the steel strands close to the rigid rail is connected to the rigid rail by a conductor to achieve local current conduction; It also includes a safety hook assembly and a fall arrestor assembly. When performing maintenance on the horizontal cable, the safety hook assembly is hung on the steel strand and can energize the steel strand and transmit the current to the rigid rail through the conductor. The current is then transmitted to the fall arrestor assembly, which can unlock the fall arrestor assembly. During ground operations, the safety hook assembly engages with the fall arrestor assembly, and the fall arrestor assembly can be unlocked using an electric current, allowing it to be opened and installed on a rigid rail. At the safe height, the fall arrestor assembly can only be removed from the rigid rail when the safety hook assembly can be hooked onto the bottom anti-derailment device of the rigid rail. In high-altitude work environments, the fall arrestor assembly can only be removed from the rigid rail after the safety hook assembly can be hooked onto the steel strand.

[0008] Preferably, the safety hook assembly includes a safety hook and a protective strap. One end of the protective strap is connected to the safety hook. The safety hook is divided into an inner top wall area and two side protrusion areas. A conductive plate A is installed in the inner top wall area, and conductive plates B are installed in both side protrusion areas. When the safety hook is hung on the steel strand, the conductive plate A can transmit current to the steel strand.

[0009] Preferably, the fall arrestor assembly includes a fall arrestor body and a self-locking device installed on the fall arrestor body. Guide rail blocks are installed on both sides of the fall arrestor body. Both guide rail blocks slide elastically with the fall arrestor body. When the two guide rail blocks leave the fall arrestor body, the fall arrestor body can be detached from the rigid rail. When the two guide rail blocks are in contact with the fall arrestor body, the fall arrestor body and the two guide rail blocks can form a T-shaped part. The T-shaped part can cooperate with the rigid rail. At this time, the fall arrestor body cannot be removed from the rigid rail. When the safety hook transmits current to the rigid rail, the two guide rail blocks can separate from the fall arrestor body.

[0010] Preferably, each of the guide rail blocks has a conductive spring installed on its end face facing the rigid rail. When the guide rail block is attached to the fall arrestor body and installed on the rigid rail, the conductive spring contacts the rigid rail and can transmit the current of the rigid rail.

[0011] Preferably, the safety hook slides into the T-shaped part, and the two conductive pieces B on the safety hook can contact the two conductive spring pieces respectively.

[0012] Preferably, the side of the fall arrestor body facing the guide rail block is provided with an inner hole, and a spring is installed in the inner hole. The other end of the spring is connected to the guide rail block. When the guide rail block is in contact with the fall arrestor body, the spring is in a compressed state.

[0013] Preferably, the fall arrestor body is equipped with two sets of electromagnetic triggers. Each electromagnetic trigger is equipped with two symmetrically arranged hooks A. Each guide rail block is fixedly equipped with two hooks B on the side facing the fall arrestor body. The fall arrestor body is provided with an inner cavity corresponding to the position of hook B. Hook A is located in the inner cavity. When the guide rail block is in contact with the fall arrestor body, hook B passes over hook A and hangs on hook A to form a fixed relationship. When the conductive spring contacts the current transmitted by the rigid rail, the current controls the electromagnetic trigger to deflect hook A. At this time, hook A leaves hook B, hook B loses connection, and the reaction force of the spring pushes the guide rail block away from the fall arrestor body.

[0014] Preferably, the guide rail block has an L-shaped structure, with two guide rail blocks symmetrically arranged around the fall arrester body. At least two rollers are installed in the guide rail block, and the rollers are used to conform to the rigid rail to reduce sliding resistance.

[0015] Preferably, the conductor is installed on the fixed end of the steel strand connecting to the tower body, and a conductive patch is installed on the end of the conductor away from the steel strand. The conductive patch is installed on the side of the rigid rail with bolts, so as not to affect the crossing of the fall arrestor assembly.

[0016] Preferably, the self-locking device is connected to the protective belt via a safety chain.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. This fall protection device, applied to power system tower climbing, uses a conductor to connect the transverse steel strand and the longitudinal rigid rail, transmitting current to both. This allows workers to first attach a safety hook to the steel strand and transmit current before unlocking the fall arrestor on the rigid rail. Therefore, when transferring from longitudinal tower climbing to transverse cable routing, the safety hook and fall arrestor have a strict order of use. Workers cannot break the order and unlock the fall arrestor directly by taking chances, making the transfer safer.

[0018] 2. This fall protection device for power system tower climbing, by setting up a fall arrestor component, when the fall arrestor component is fastened to the rigid rail and the tower climbing begins, once the fall arrestor component leaves the anti-derailment device and exceeds the safe height, the worker cannot use the safety hook to connect the anti-derailment device to unlock the fall arrestor. Therefore, once the fall arrestor is used on the rigid rail, it cannot be actively unlocked under unsafe conditions, and there is no situation of accidental unlocking or deliberate unlocking due to wishful thinking as seen in the prior art.

[0019] 3. This fall protection device, applied to power system tower climbing, can only unlock the fall arrestor body by inserting the safety hook into the T-shaped part of the fall arrestor body when on the ground. It can be used with two conductive plates B to unlock the fall arrestor body. Therefore, it can be checked whether the equipment is complete and whether the safety hook and fall arrestor body are qualified before climbing the tower, thus overcoming the problem of forgetting to bring the safety hook when working at height.

[0020] 4. This fall protection device, applied to climbing towers in power systems, has a safety hook with conductive plate B that can only conduct electricity when both plates are used together. This prevents workers from accidentally unlocking the device by touching the rigid rail with the safety hook in dangerous situations. Conductive plate A cannot make contact with the rigid rail to conduct electricity without contacting the steel strand, thus providing a higher level of safety. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the electrical connection between the rigid track and the steel strand of the present invention; Figure 3 This is a schematic diagram of the structure of the safety hook assembly and the fall arrestor assembly of the present invention; Figure 4 This is a schematic diagram of the structure of the safety hook of the present invention; Figure 5 This is a schematic diagram of the structure of the fall arrestor assembly of the present invention; Figure 6 For the present invention Figure 5 Sectional view along line A; Figure 7 For the present invention Figure 6 Enlarged view of the structure at point A in the middle; Figure 8 For the present invention Figure 5 Sectional view along line B; Figure 9 This is a structural diagram showing the fit between the T-shaped part and the safety hook of the present invention; Figure 10 This is a schematic diagram of the process of the present invention.

[0022] In the diagram: 1. Rigid rail; 2. Steel strand; 3. Anti-derailment device; 4. Conductor; 401. Conductive patch; 5. Safety hook assembly; 501. Safety hook; 502. Protective belt; 503. Inner top wall area; 504. Protruding areas on both sides; 505. Conductive plate A; 506. Conductive plate B; 6. Fall arrestor assembly; 601. Fall arrestor body; 602. Self-locking device; 603. Guide rail block; 604. T-shaped part; 605. Conductive spring; 606. Inner hole; 607. Spring; 608. Electromagnetic trigger; 609. Hook A; 610. Hook B; 611. Inner chamber; 612. Roller; 613. Safety chain. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0024] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0025] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0026] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0027] like Figure 1-10As shown, a fall protection device for power system tower climbing includes a rigid rail 1 and steel strands 2. A derailment device 3 is installed at the bottom of the rigid rail 1. The end of the steel strands 2 connecting to the power tower is close to the rigid rail 1. The end of the steel strands 2 close to the rigid rail 1 is connected to the rigid rail 1 by a conductor 4 to achieve local current conduction. It also includes a safety hook assembly 5 and a fall arrestor assembly 6. During horizontal cable maintenance, the safety hook assembly 5 is hung on the steel strands 2, energizing them and transmitting current through the conductor 4 to the rigid rail 1. The current then reaches the fall arrestor assembly 6, unlocking it. During ground work, the safety hook assembly 5 engages with the fall arrestor assembly 6, unlocking it with current and allowing it to be installed on the rigid rail 1. At a safe height, the fall arrestor assembly 6 can only be removed from the rigid rail 1 when the safety hook assembly 5 is hooked onto the derailment device 3 at the bottom of the rigid rail 1. In high-altitude work environments, the fall arrestor assembly 6 can only be removed from the rigid rail 1 after the safety hook assembly 5 can be hooked onto the steel strand 2.

[0028] Rigid rail 1 can adopt anti-misalignment T-shaped guide rails with concave and convex grooves, I-beam aluminum guide rails, aluminum-clad steel composite guide rails, etc. Among them, the I-beam aluminum guide rails are rolled by molds and made of 6005-T6 aluminum alloy. The external dimensions of the guide rail are: width 36mm (upper flange, self-locking contact surface) × thickness 6mm × height 60mm; the flatness of the guide rail and the height difference at the joint are no more than 1mm. The lower end of the guide rail has a reinforcing rib section, which is fastened to the guide rail itself with a fixed connecting plate to make it firm, flat, and prevent loosening and misalignment.

[0029] Steel strand 2 is a flexible guide rail, made of 19 strands of steel wire, and is made of 304 stainless steel or aluminum-clad steel. The guide rail diameter is 12mm / 9mm. Both ends are crimped with wire clamps and fixed to the iron tower with connecting clamps.

[0030] The conductor 4 is a solid copper wire or copper wire with a diameter of 1-2.5 square millimeters. One end of the conductor is clamped to the end clamp of the steel strand 2 or to the connecting clamp and locked in place. The other end needs to be drilled in the rigid rail 1 for fixed installation. The rigid rail 1 is generally made of aluminum, so it has good conductivity.

[0031] The anti-derailment device 3 is generally a long bolt installed at the bottom of the rigid rail 1.

[0032] The five-point safety belt for power maintenance personnel is also equipped with a 6V battery pack. Its output circuit is embedded in the safety belt and connected to the safety hook assembly 5 and the fall arrestor assembly 6 respectively. The safety belt is also equipped with electrical components such as an amplifying capacitor and a circuit continuity sensor.

[0033] In an optional embodiment, the safety hook assembly 5 includes a safety hook 501 and a protective strap 502. One end of the protective strap 502 is connected to the safety hook 501. The safety hook 501 is divided into an inner top wall area 503 and two side protrusion areas 504. A conductive sheet A505 is installed in the inner top wall area 503, and a conductive sheet B506 is installed in both side protrusion areas 504. When the safety hook 501 is hung on the steel strand 2, the conductive sheet A505 can transmit current to the steel strand 2.

[0034] In this embodiment, the protective strap 502 is connected to the chest or shoulder / back attachment point of the full-body safety harness. The safety hook 501 is preferably a screw-type safety hook with a large opening for easy operation. The safety hook 501 has a hollow internal structure, and the cable for transmitting current is installed inside the safety hook 501. The external conductive plates A505 and B506 are embedded with their smooth surfaces facing outwards. The internal cable is soldered to the side of conductive plate A505 or conductive plate B506 inside the safety hook 501. The conductive plate B506 can be installed in series; the circuit is only completed when both contacts are simultaneously touched (i.e., both switches are closed). Alternatively, a relay or logic circuit can be used to control the circuit so that a single touch of the conductive plate B506 does not energize it, preventing electrical maintenance personnel from touching the rigid rail 1 with the conductive plate B506 and causing the fall arrestor assembly 6 to unlock.

[0035] In an optional embodiment, the fall arrestor assembly 6 includes a fall arrestor body 601 and a self-locking device 602 mounted on the fall arrestor body 601. Guide rail blocks 603 are mounted on both sides of the fall arrestor body 601. Both guide rail blocks 603 slide elastically with the fall arrestor body 601. When the two guide rail blocks 603 leave the fall arrestor body 601, the fall arrestor body 601 can be detached from the rigid rail 1. When the two guide rail blocks 603 are in contact with the fall arrestor body 601, a T-shaped part 604 can be formed between the fall arrestor body 601 and the two guide rail blocks 603. The T-shaped part 604 can cooperate with the rigid rail 1. At this time, the fall arrestor body 601 cannot be removed from the rigid rail 1. When the safety hook 501 transmits current to the rigid rail 1, the two guide rail blocks 603 can be separated from the fall arrester body 601.

[0036] In this embodiment, the fall arrester body 601 and guide rail block 603 differ from the fall arrester structure in the prior art in that the guide rail block 603 can separate from the fall arrester body 601. The maximum separation stroke of the guide rail block 603 is just enough to allow the T-shaped end of the rigid track 1 to pass through the distance between the two guide rail blocks 603. The maximum separation distance between the two is slightly greater than the end width of the track. The minimum closing distance of the two guide rail blocks 603 is slightly greater than the thickness of the middle rib of the I-beam track. The area of ​​the T-shaped part 604 is slightly greater than the cross-sectional area of ​​the rigid track 1.

[0037] In an optional embodiment, conductive springs 605 are installed on the end face of the guide rail block 603 facing the rigid rail 1. When the guide rail block 603 is attached to the fall arrester body 601 and installed on the rigid rail 1, the conductive springs 605 contact the rigid rail 1 and can transmit the current of the rigid rail 1.

[0038] In this embodiment, the conductive spring 605 is made of elastic material, and its inner end is embedded in the guide rail block 603. The conductive spring 605 has a certain degree of deformation. When the fall arrestor body 601 and the guide rail block 603 are together attached to the rigid rail 1, the convex surface of the conductive spring 605 is in close contact with the surface of the rigid rail 1 to avoid disconnection. The conductive spring 605 has a certain degree of wear resistance. The conductive spring 605 is made of alloy material, generally copper alloy, which has high strength and good wear resistance. Composite materials, such as copper-graphite, can also be used to enhance wear resistance and may improve self-lubrication. The most economical form is to plate the surface of copper.

[0039] In an optional embodiment, the safety hook 501 is slidably engaged with the T-shaped portion 604, and the two conductive pieces B506 on the safety hook 501 can respectively contact the two conductive spring pieces 605.

[0040] In this embodiment, the safety hook 501 is designed to fit the T-shaped part 604. When the safety hook 501 is inserted into the T-shaped part 604, the conductive sheet B506 should compress the conductive spring 605 to ensure normal current transmission. The insertion of the safety hook 501 is equivalent to unlocking with a key. When the T-shaped part 604 is stuck on the rigid track 1, it is equivalent to the keyhole being occupied. Even with a key, it cannot be unlocked. Therefore, it can not only avoid accidental locking, but also prevent active unlocking in dangerous situations.

[0041] In an optional embodiment, the side of the fall arrester body 601 facing the guide rail block 603 is provided with an inner hole 606, and a spring 607 is installed in each inner hole 606. The other end of the spring 607 is connected to the guide rail block 603. When the guide rail block 603 is in contact with the fall arrester body 601, the spring 607 is in a compressed state.

[0042] In this embodiment, the spring 607 is used to achieve the effect of opening the guide rail block 603 or storing energy when the guide rail block 603 closes.

[0043] In an optional embodiment, two sets of electromagnetic triggers 608 are installed in the fall arrester body 601. Each electromagnetic trigger 608 is equipped with two symmetrically arranged hooks A609. Each guide rail block 603 is fixedly installed with two hooks B610 on one side facing the fall arrester body 601. The fall arrester body 601 is provided with an inner cavity 611 corresponding to the position of hook B610. Hook A609 is located in the inner cavity 611. When the guide rail block 603 is in contact with the fall arrester body 601, hook B610 passes over hook A609 and hangs on hook A609 to form a fixed relationship. When the conductive spring 605 comes into contact with the current transmitted by the rigid rail 1, the current controls the electromagnetic trigger 608 to deflect the hook A609. At this time, the hook A609 leaves the hook B610, the hook B610 loses connection, and the reaction force of the spring 607 pushes the guide rail block 603 away from the fall arrester body 601.

[0044] In this embodiment, the electromagnetic trigger 608 is equivalent to an electromagnet (electromagnetic actuator). When energized, the magnetic force generated by the electromagnet pulls the iron hook A609 connected to it, causing it to contact the restriction on the hook B610. The electromagnet operates at DC 6V, has a static resistance of 10Ω-30Ω, and a response time of <50ms. After activation, the electromagnet is de-energized, and the disappearance of the magnetic force causes the internal mechanical spring to reset the hook A609.

[0045] In an optional embodiment, the guide rail block 603 has an L-shaped structure, and the two guide rail blocks 603 are symmetrically arranged with the fall arrester body 601 as the center. At least two rollers 612 are installed in the guide rail block 603. The rollers 612 are used to conform to the rigid rail 1 to reduce sliding resistance.

[0046] In an optional embodiment, the conductor 4 is installed on the fixed end of the steel strand 2 that connects to the tower body. A conductive patch 401 is installed on the end of the conductor 4 away from the steel strand 2. The conductive patch 401 is installed on the side of the rigid rail 1 by bolts, without affecting the crossing of the fall arrestor assembly 6.

[0047] In this embodiment, the side of the conductive patch 401 that contacts the rigid rail 1 is a polished copper surface, and conductive grease is applied between the conductive patch 401 and the rigid rail 1. Holes are drilled in the rigid rail 1 at the location where installation is required, and then the conductive patch 401 is installed using bolts. The installation can be customized.

[0048] In an optional embodiment, the self-locking device 602 is connected to the protective belt 502 via a safety chain 613.

[0049] In this embodiment, the self-locking device 602 and the protective belt 502 are both essential equipment that power workers must carry before climbing the tower. Connecting the self-locking device 602 and the protective belt 502 can integrate the equipment, prevent forgetting to carry components such as the safety hook 501 when climbing the tower, and add a certain degree of protection on the basis of the five-point safety belt.

[0050] Working principle: When on the ground, insert the safety hook 501 into the T-shaped part 604. The current is transmitted to the conductive sheet B506 and then to the conductive spring 605, which unlocks the electromagnetic trigger 608 and opens the hook A609. At this time, the hook A609 leaves the hook B610 and loses its restraining relationship. The reaction force of the spring 607 pushes the guide rail block 603 away from the fall arrestor body 601. At this time, the distance between the fall arrestor body 601 and the guide rail block 603 increases, and the fall arrestor body 601 can be locked onto the rigid rail 1. After locking the fall arrestor body 601, hold the two guide rail blocks 603 with both hands and press them down to compress the spring 607. This causes the hook B610 on the guide rail block 603 to pass over the hook A609 and be attached to the hook A609 to form a fixed relationship. At this time, the guide rail block 603 and the fall arrestor body 601 fit together to form the T-shaped part 604. At this time, the fall arrestor body 601 cannot leave the rigid rail 1. When the cable is laid horizontally, the safety hook 501 is first removed and hung on the steel strand 2. The conductive plate A505 triggers the current. The current passes through the steel strand 2, the wire 4, the rigid rail 1 and is transmitted to the conductive spring 605. At this time, the electromagnetic trigger 608 is energized and the hook A609 is unlocked. At this time, the hook A609 leaves the hook B610 and loses the restriction relationship. The reaction force of the spring 607 pushes the guide rail block 603 away from the fall arrestor body 601. At this time, the distance between the fall arrestor body 601 and the guide rail block 603 increases, and the fall arrestor body 601 can be removed from the rigid rail 1. When the maintenance is completed and the device is lowered to a safe height, the maintenance personnel can usually touch the anti-derailment device 3 at this height, since the anti-derailment device 3 is usually installed at the bottom of the rigid rail 1. At this time, the safety hook 501 is taken out and attached to the anti-derailment device 3. The conductive plate A505 triggers the current, which passes through the rigid rail 1 and is transmitted to the conductive spring 605. At this time, the electromagnetic trigger 608 is energized and unlocks the hook A609. The hook A609 is now separated from the hook B610 and loses its restraining relationship. The reaction force of the spring 607 pushes the guide rail block 603 away from the anti-fall device body 601. At this time, the distance between the anti-fall device body 601 and the guide rail block 603 increases, and the anti-fall device body 601 can be removed from the rigid rail 1.

[0051] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0052] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A kind of anti-falling protection device applied to the tower climbing of electric power system, including rigid track (1) and steel strand (2), the lowermost end of rigid track (1) is equipped with anti-derailing device (3), it is characterized by: The steel strand (2) is connected with the end position of the power tower and close to the rigid rail (1), the end of the steel strand (2) close to the rigid rail (1) is connected with the rigid rail (1) by the wire (4), for realizing partial conduction current; Further comprising a safety hook assembly (5) and a fall arrester assembly (6), when transverse wiring maintenance, the safety hook assembly (5) is hung on the steel strand (2), which can pass electricity to the steel strand (2) and pass current to the rigid rail (1) through the wire (4), and the current is transmitted to the fall arrester assembly (6) to unlock the fall arrester assembly (6); When ground operation, the safety hook assembly (5) is clamped into the fall arrester assembly (6), which can unlock the fall arrester assembly (6) by using current, so that it is opened and can be installed on the rigid rail (1); When safe height, only when the safety hook assembly (5) can be hung on the position of the derailment preventor (3) at the bottom end of the rigid rail (1), the fall arrester assembly (6) can be removed from the rigid rail (1); Under the environment of high-altitude operation, only when the safety hook assembly (5) can be hung on the steel strand (2), the fall arrester assembly (6) can be removed from the rigid rail (1).

2. The fall protection device for use in climbing towers of electric power systems according to claim 1, characterized in that: The safety hook assembly (5) comprises a safety hook (501) and a protective belt (502), one end of the protective belt (502) is connected with the safety hook (501), the safety hook (501) is divided into an inner top wall area (503) and two side protruding areas (504), the inner top wall area (503) is provided with a conductive sheet A (505), and the two side protruding areas (504) are provided with conductive sheets B (506), when the safety hook (501) is hung on the steel strand (2), the conductive sheet A (505) can transmit current to the steel strand (2).

3. The fall protection apparatus for use in climbing towers of electric power systems according to claim 2, characterized in that: The fall arrester assembly (6) comprises a fall arrester body (601) and a self-locking device (602) installed on the fall arrester body (601), both sides of the fall arrester body (601) are provided with guide rail clamping blocks (603), the two guide rail clamping blocks (603) are elastically slid with the fall arrester body (601), when the two guide rail clamping blocks (603) are away from the fall arrester body (601), the fall arrester body (601) can be disassembled from the rigid rail (1), when the two guide rail clamping blocks (603) are attached to the fall arrester body (601), the fall arrester body (601) and the two guide rail clamping blocks (603) can form a T-shaped part (604), the T-shaped part (604) can cooperate with the rigid rail (1), at this time, the fall arrester body (601) cannot be removed from the rigid rail (1); When the safety hook (501) transmits current to the rigid rail (1), the two guide rail clamping blocks (603) can be away from the fall arrester body (601).

4. The fall protection apparatus for use in climbing towers of electric power systems according to claim 3, characterized in that: The end faces of the guide rail clamping blocks (603) towards the rigid rail (1) are provided with conductive spring sheets (605), when the guide rail clamping blocks (603) are attached to the fall arrester body (601) and installed on the rigid rail (1), the conductive spring sheets (605) contact the rigid rail (1), and the conductive spring sheets (605) can transmit the current of the rigid rail (1).

5. The fall protection apparatus for use in climbing towers of electric power systems according to claim 4, characterized in that: The safety hook (501) is in sliding fit with the T-shaped part (604), and two conductive sheets B (506) on the safety hook (501) can be in contact with two conductive springs (605) respectively.

6. The fall protection apparatus for use in climbing towers of electrical power systems according to claim 5, characterized in that: The anti-falling device body (601) is provided with an inner hole (606) on one side of the guide rail clamping block (603), a spring (607) is installed in the inner hole (606), and the other end of the spring (607) is connected with the guide rail clamping block (603); when the guide rail clamping block (603) is attached to the anti-falling device body (601), the spring (607) is in a compressed state.

7. The fall protection apparatus for use in climbing towers of electric power systems according to claim 6, characterized in that: The anti-falling device body (601) is provided with two groups of electromagnetic triggers (608), any one of the electromagnetic triggers (608) is provided with two symmetrically arranged hooks A (609), any one of the guide rail clamping blocks (603) is provided with two hooks B (610) fixedly installed on one side of the anti-falling device body (601), the anti-falling device body (601) is provided with an inner chamber (611) corresponding to the hooks B (610), the hooks A (609) are in the inner chamber (611), when the guide rail clamping block (603) is attached to the anti-falling device body (601), the hooks B (610) pass over the hooks A (609) and are hung on the hooks A (609) to form a fixed relationship. When the conductive spring (605) contacts the current transmitted by the rigid rail (1), the current control electromagnetic trigger (608) offsets the hook A (609), at this time, the hook A (609) leaves the hook B (610), the hook B (610) loses the connection, and the reaction force of the spring (607) pushes the guide rail clamping block (603) away from the anti-falling device body (601).

8. The fall protection apparatus for use in climbing towers of electric power systems according to claim 7, characterized in that: The guide rail clamping block (603) is in an L-shaped structure, and two guide rail clamping blocks (603) are symmetrically arranged with the anti-falling device body (601) as the center, at least two rollers (612) are installed in the guide rail clamping block (603), and the rollers (612) are used to attach to the rigid rail (1) to reduce the sliding resistance.

9. The fall protection apparatus for use in climbing towers of electric power systems according to claim 8, characterized in that: The wire (4) is installed on the fixed end of the steel strand (2) connected with the tower body, the conductive patch (401) is installed on the end of the wire (4) away from the steel strand (2), the conductive patch (401) is installed on the side of the rigid rail (1) by means of bolts, and the passing of the anti-falling device assembly (6) is not affected.

10. The fall protection apparatus for use in climbing towers of electrical power systems according to claim 9, characterized in that: The self-locking device (602) is connected with the safety chain (613) and the protection belt (502).

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