Falling protector for power maintenance

Abstract

According to the falling protector for power maintenance, the overall length of the falling protector can be conveniently adjusted through adjustment of the adjusting assembly so that the falling protector can adapt to towers of different heights. Due to the design of the climbing and hanging assembly, the falling protector can be stably hung on a tower, and meanwhile, the falling protector and the tower are firmly fixed through the blocking effect of the safety assembly. In the climbing process, when the falling protector needs to be turned over, the safety piece on the lower portion can be opened through pulling of the driving cable, and turning operation is facilitated. After overturning, the climbing and hanging assembly at the upper end is hung on the side wall of a tower at a higher position through the sealing assembly, seamless connection climbing is achieved, and the safety of a user is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of electric power maintenance equipment, in particular to a fall arrester for electric power maintenance. Background Art

[0002] In power maintenance operations, maintenance personnel often need to perform high-altitude operations on poles and towers. In order to ensure the safety of maintenance personnel, fall arresters have become indispensable equipment. Traditional fall arresters are usually designed with a fixed length and cannot be flexibly adjusted according to the height and diameter of the poles and towers, which brings inconvenience to maintenance operations. In addition, during the climbing process, the closing and opening of the safety components of traditional fall arresters are cumbersome and pose safety hazards. Once improperly operated, it may cause maintenance personnel to fall, resulting in serious consequences.

[0003] In recent years, with the rapid development of the power industry and the continuous advancement of technology, the safety protection performance requirements for power maintenance fall arresters have become increasingly higher. Most of the fall arresters on the market are hooked on a fixed position on the tower, and are fixedly connected with the safety rope connected to the human body using a built-in safety cable to ensure the safety of maintenance personnel during the climbing process. However, these fall arresters usually need to be pre-suspended and fixed by equipment such as drones or lifts, and then removed afterwards, which is not conducive to the rapid deployment of operations and convenient use by personnel.

[0004] Therefore, how to design a fall arrester that is easy to adjust the length, stable for climbing pole towers, and can automatically close the insurance during the climbing process to improve the safety of the user has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] In order to solve the above technical problems, the present invention proposes a fall arrester for power maintenance, which realizes length adjustment of the fall arrester, stable climbing and automatic closure of the safety component, thereby improving the safety of the user.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] A fall arrester for electric power maintenance, comprising:

[0008] An adjustment assembly is used to adjust the overall length of the fall arrester; the adjustment assembly comprises two support rods, and a fixing sleeve is screwed between the two support rods;

[0009] A climbing and hanging assembly is used for climbing the pole tower stably; two climbing and hanging assemblies are provided, each of which comprises a hook, one end of which is rotatably connected to one end of the support rod, and the other end of the hook is detachably connected to a sealing assembly;

[0010] A safety component is used to seal the climbing and hanging component during climbing; the safety component includes a drive cable, the drive cable is connected to two safety pieces in a transmission manner, the safety pieces pass through the hook and are screwed to the hook; the drive cable passes through the hook, the support rod and the fixing sleeve respectively.

[0011] Preferably, the support rod is a hollow structure, and the inner cavities of the two support rods are connected to the inner cavity of the fixing sleeve.

[0012] Preferably, the sealing assembly includes a sealing plate, one end of which is hinged to the hook, and the other end of which is detachably connected to the safety member; a sliding hole is provided at one end of the sealing plate, and a semicircular sliding rail is slidably connected in the sliding hole, both ends of the sliding rail are respectively fixedly connected to the hook and are sleeved with a spring, one end of the spring is fixedly connected to the hook, and the other end of the spring is fixedly connected to the sealing plate.

[0013] Preferably, the driving rope includes a ring rope, which is a ring-shaped closed structure, and the two ends of the ring rope are respectively wrapped around the two safety parts; the ring rope passes through and is respectively arranged in the hook, the support rod and the inner cavity of the fixed sleeve; the middle part of the ring rope is sleeved and fixedly connected with a counterweight block, and the counterweight block is arranged in the middle part of the inner cavity of the fixed sleeve.

[0014] Preferably, the safety component includes a screw rod, a first screw groove is provided on the circumference of the screw rod; a screw hole is provided on the other end of the hook, a second screw groove is provided on the inner wall of the screw hole, a sleeve is fixedly connected to the second screw groove, balls are embedded in the sleeve at equal intervals and rotatably connected, and the screw is threadedly connected to the screw hole through the balls; a capstan is fixedly connected to one end of the screw rod; the outer side of the capstan is wound with the ring rope; the other end of the screw is detachably connected to the side of the sealing plate.

[0015] Preferably, a guide ring is fixedly connected to the middle portion of the outer side surface of the hook, and the guide ring is sleeved on the outer side of the ring rope.

[0016] Preferably, a connecting ring is fixedly connected to the outer side surface of the fixing sleeve, and the connecting ring is detachably connected to an external safety rope.

[0017] Compared with the prior art, the present invention has the following advantages and technical effects:

[0018] The invention can conveniently adjust the distance between the two support poles by rotating the fixing sleeve, so as to adapt to pole towers with different diameters. This design makes the fall arrester more widely applicable and can meet the needs of different power maintenance operations.

[0019] The climbing and hanging assembly of the present invention adopts a design combining a hook and a sealing assembly, so that the hook can be stably hung on the pole tower and sealed by the sealing assembly to prevent it from falling off. This design improves the stability during the climbing process and ensures the safety of maintenance personnel.

[0020] The safety assembly of the present invention adopts a design combining a driving cable with a safety piece, and utilizes the gravity of the counterweight block to realize the function of automatically closing the safety when the fall arrester is turned over. This design simplifies the operation steps, improves work efficiency, and ensures the safety of maintenance personnel during the climbing process.

[0021] The support rod and the fixing sleeve of the present invention adopt a hollow structure, which is convenient for hiding the driving cable and reducing the risk of the driving cable being stuck. At the same time, the matching design of the slide rail and the sealing plate, as well as the matching design of the ball and the sleeve frame, further reduces the possibility of being stuck, ensuring the normal operation of the fall arrester.

[0022] The screw rod and the screw hole of the present invention are connected by a ball, which improves the smoothness of the screw and makes the rotation of the safety part more flexible and stable. This design ensures the reliability of the safety component during the closing and opening process and improves the safety of the fall arrester.

[0023] In summary, the present invention fixes the user's safety rope to the side of the fixing sleeve, and rotates the fixing sleeve to adjust the distance between the climbing and hanging components at both ends of the two support poles, so that the present invention can be used to hook on the pole tower. At the same time, the climbing and hanging component can use the barrier of the safety component to achieve a firm fixation with the pole tower, and when the present invention is flipped, the driving cable can be used to open the safety component below to facilitate flipping, and after flipping, the sealing component can be used to hang the climbing and hanging component at the upper end to the higher side wall of the pole tower, so that the present invention can be seamlessly connected to climb on the pole tower without complete disassembly, thereby improving the safety of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention from a side view;

[0026] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0027] Figure 3 It is a schematic diagram of the three-dimensional structure of the hook from a side view;

[0028] Figure 4It is a schematic diagram of the three-dimensional structure of the climbing and hanging assembly and the safety assembly from a side view;

[0029] Figure 5 It is a schematic diagram of the cross-sectional structure of the adjustment component.

[0030] Among them, 1. support rod; 2. fixing sleeve; 3. hook; 5. sealing plate; 6. slide rail; 7. spring; 8. ring rope; 9. counterweight; 10. screw rod; 11. first screw groove; 12. screw hole; 13. second screw groove; 14. sleeve; 15. ball bearing; 16. capstan; 17. guide ring; 18. connecting ring. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] It should be noted that all components in the technical solution of this application require the necessary additional facilities of water supply, oil supply, electricity supply and gas supply to be driven and / or controlled. If there is no further explanation, it is assumed that the existing technology is used and equipped without special explanation.

[0033] It should be noted that, in order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0034] Depend on Figure 1-4 A fall arrester for electric power maintenance is shown, comprising:

[0035] The adjusting assembly is used to adjust the overall length of the fall arrester; the adjusting assembly comprises two support rods 1, and a fixing sleeve 2 is screwed between the two support rods 1;

[0036] A climbing and hanging assembly is used for climbing the pole tower stably; two climbing and hanging assemblies are provided, and the climbing and hanging assemblies include a hook 3, one end of the hook 3 is rotatably connected to one end of the support rod 1, and the other end of the hook 3 is detachably connected to a sealing assembly;

[0037] The safety component is used to close the climbing component during the climbing process; the safety component includes a drive cable, which is connected to two safety parts in a transmission manner. The safety parts pass through the hook 3 and are screwed to the hook 3; the drive cable passes through the hook 3, the support rod 1 and the fixing sleeve 2 respectively.

[0038] In a further optimized solution, the support rod 1 is a hollow structure, and the inner cavities of the two support rods 1 are connected to the inner cavities of the fixing sleeve 2. The hollow structure of the support rod 1 and the fixing sleeve 2 can facilitate the hidden placement of the drive cable, reducing the risk of the drive cable being stuck.

[0039] A further optimized solution is that the sealing assembly includes a sealing plate 5, one end of the sealing plate 5 is hinged to the hook 3, and the other end of the sealing plate 5 is detachably connected to the safety piece; a sliding hole is opened at one end of the sealing plate 5, and a semicircular sliding rail 6 is slidably connected in the sliding hole, and both ends of the sliding rail 6 are respectively fixedly connected to the hook 3 and are sleeved with a spring 7, one end of the spring 7 is fixedly connected to the hook 3, and the other end of the spring 7 is fixedly connected to the sealing plate 5.

[0040] Furthermore, the distance between the center of the sliding hole and the hinge axis of the sealing plate 5 is the radius of the arc-shaped slide rail 6, so that the sealing plate 5 can slide back and forth along the slide rail 6. In addition, springs 7 are provided on both sides of the sealing plate 5 to stably place the sealing plate 5 in the same position.

[0041] A further optimized solution is that the driving rope includes a ring rope 8, which is a ring-shaped closed structure, and the two ends of the ring rope 8 are respectively wrapped with two safety parts; the ring rope 8 passes through the hook 3, the support rod 1 and the fixed sleeve 2 respectively and is arranged in the inner cavity of the three; the middle part of the ring rope 8 is sleeved and fixedly connected with a counterweight block 9, and the counterweight block 9 is arranged in the middle part of the inner cavity of the fixed sleeve 2. Furthermore, chamfers are provided at both ends of the counterweight block 9 to facilitate the counterweight block 9 to slide back and forth smoothly in the support rod 1 and the fixed sleeve 2. And the counterweight block 9 is arranged so that in the process of flipping the present invention, the driving rope can pull the driving rope to reciprocate under the action of the gravity of the counterweight block 9, thereby driving the two safety parts to rotate.

[0042] A further optimized solution is provided, in which the safety part includes a screw 10, and a first screw groove 11 is provided on the circumference of the screw 10; a screw hole 12 is provided on the other end of the hook 3, and a second screw groove 13 is provided on the inner wall of the screw hole 12, a sleeve 14 is fixedly connected to the second screw groove 13, and balls 15 are embedded in the sleeve 14 at equal intervals and rotatably connected, and the screw 10 is threadedly connected to the screw hole 12 through the balls 15; a capstan 16 is fixedly connected to one end of the screw 10; the outer side of the capstan 16 is wound with a ring rope 8; the other end of the screw 10 is detachably connected to the side of the sealing plate 5. Furthermore, a second screw groove 13 is provided in the screw hole 12 of the hook 3, and a first screw groove 11 is provided on the peripheral side of the screw rod 10. The first screw groove 11 and the second screw groove 13 are adapted to each other and filled with balls 15 and a retainer of the balls 15, i.e., a sleeve 14, which can improve the smoothness of the spiral of the screw rod 10 and the screw hole 12 and prevent the balls 15 from rolling randomly and falling off or even getting stuck, which affects the safety of the present invention.

[0043] In a further optimized solution, a guide ring 17 is fixedly connected to the middle of the outer side of the hook 3, and the guide ring 17 is sleeved on the outer side of the ring rope 8. The guide ring 17 can constrain the ring rope 8 to prevent the ring ropes 8 from getting entangled with each other and causing the driving rope to fail, and can also facilitate the introduction of the ring rope 8 into the inner cavity of the hook 3.

[0044] According to a further optimized solution, a connecting ring 18 is fixedly connected to the outer side surface of the fixing sleeve 2, and the connecting ring 18 is detachably connected to an external safety rope.

[0045] The working process of this embodiment is as follows:

[0046] When the device is implemented, the operator first connects the safety rope to the connecting ring 18 on the side of the fixing sleeve 2. Before climbing, the fixing sleeve 2 is rotated to adjust the length of the support rod 1 so that the hooks 3 on both sides can accurately hook the crossbeam or longitudinal beam of the iron frame of the pole tower. When it is necessary to flip upward, the body's center of gravity shifts and drives the device to tilt. The counterweight 9 slides along the inner cavity of the support rod 1 under the action of gravity, and the winch 16 is pulled by the ring rope 8 to rotate the screw 10, so that the contact between the screw 10 and the sealing plate 5 fails, and the sealing plate 5 of the lower hook 3 is automatically unlocked. At the same time, the upper hook 3 remains in a locked state through the interaction between the sealing plate 5 and the screw 10. After the flip is completed, the counterweight 9 resets and drives the screw 10 to re-lock, forming continuous protection. Furthermore, the present invention is a group of two. When the maintenance personnel use it, they hold one in each hand, flip it over and use it separately, and use the hand to hold the connecting ring 18 to climb step by step.

[0047] Furthermore, in order to reduce the weight of the present invention, the support rod 1, the fixing sleeve 2 and the hook 3 are all made of aluminum alloy, magnesium alloy or titanium alloy, which is used to reduce the overall weight and also reduces the climbing consumption of maintenance personnel.

[0048] The above are only preferred specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A fall arrester for electric power maintenance, characterized in that: include An adjustment component is used to adjust the overall length of the fall arrester; the adjustment component comprises two support rods (1), and a fixing sleeve (2) is screwed between the two support rods (1); A climbing and hanging assembly, used for stably climbing a pole tower; two climbing and hanging assemblies are provided, each climbing and hanging assembly comprising a hook (3), one end of the hook (3) being rotatably connected to one end of the support rod (1), and the other end of the hook (3) being detachably connected to a sealing assembly; A safety component is used to seal the climbing component during the climbing process; the safety component comprises a drive cable, the drive cable is transmission-connected to two safety parts, the safety parts pass through the hook (3) and are screwed to the hook (3); the drive cable passes through the hook (3), the support rod (1) and the fixing sleeve (2) respectively.

2. The anti-fall device for power maintenance according to claim 1, characterized in that: The support rod (1) is a hollow structure, and the inner cavities of the two support rods (1) are connected to the inner cavity of the fixing sleeve (2).

3. The anti-fall device for power maintenance according to claim 1, characterized in that: The sealing assembly comprises a sealing plate (5), one end of which is hinged to the hook (3), and the other end of which is detachably connected to the safety member; a sliding hole is provided at one end of the sealing plate (5), and a semicircular sliding rail (6) is slidably connected in the sliding hole; both ends of the sliding rail (6) are respectively fixedly connected to the hook (3) and sleeved with a spring (7); one end of the spring (7) is fixedly connected to the hook (3), and the other end of the spring (7) is fixedly connected to the sealing plate (5).

4. The anti-fall device for power maintenance according to claim 1, characterized in that: The driving cable comprises a ring cable (8), the ring cable (8) is a ring-shaped closed structure, and the two ends of the ring cable (8) are respectively wound around the two safety parts; the ring cable (8) respectively penetrates and is arranged in the inner cavity of the hook (3), the support rod (1) and the fixing sleeve (2); a counterweight block (9) is sleeved and fixedly connected in the middle of the ring cable (8), and the counterweight block (9) is arranged in the middle of the inner cavity of the fixing sleeve (2).

5. The anti-fall device for power maintenance according to claim 4, characterized in that: The safety component comprises a screw rod (10), a first screw groove (11) is provided on the circumference of the screw rod (10); a screw hole (12) is provided on the other end of the hook (3), a second screw groove (13) is provided on the inner wall of the screw hole (12), a sleeve (14) is fixedly connected in the second screw groove (13), balls (15) are embedded in the sleeve (14) at equal intervals and are rotatably connected, and the screw rod (10) is screwed to the screw hole (12) via the balls (15); a capstan (16) is fixedly connected to one end of the screw rod (10); the outer side of the capstan (16) is wound with the ring rope (8); the other end of the screw rod (10) is detachably connected to the side surface of the sealing plate (5).

6. The anti-fall device for power maintenance according to claim 1, characterized in that: A guide ring (17) is fixedly connected to the middle of the outer side surface of the hook (3), and the guide ring (17) is sleeved on the outer side of the ring rope (8).

7. The anti-fall device for power maintenance according to claim 1, characterized in that: A connecting ring (18) is fixedly connected to the outer side surface of the fixing sleeve (2), and the connecting ring (18) is detachably connected to an external safety rope.

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