A power tower climbing anti-falling device

Abstract

This invention discloses a fall arrestor for climbing power transmission towers, relating to the field of fall arrestor technology. It includes a fixed outer casing for installation on the corner of the tower. The fixed casing is equipped with a handle for personnel to grip and a rope loop for securing a safety rope. The fixed casing also includes a clamping mechanism and a locking mechanism. The clamping mechanism securely fixes the fixed casing to the tower, while the locking mechanism ensures the stability of the clamping mechanism and prevents it from falling. The locking mechanism has two pressing posts to prevent accidental activation that could cause the casing to fall and create a hazard. This invention improves the stability of the fall arrestor and prevents accidental falls through the locking mechanism.

Description

Technical Field

[0001] This invention relates to the field of fall arrestor technology, and in particular to a fall arrestor for climbing power transmission towers. Background Technology

[0002] Climbing power transmission towers is a high-risk job, making the use of fall arresters crucial. Fall arresters provide additional safety protection and reduce the risk of accidents, as power transmission towers are typically located at considerable heights, posing a risk of fall during climbing. Fall arresters connect workers' safety harnesses to anchor points, preventing falls in unexpected situations. These devices provide reliable anchoring and the force to stop falls, ensuring the climber's safety.

[0003] Chinese utility model patent with announcement number CN210020912U discloses a tower climbing fall arrestor. This device is fixed to foot spikes on the power transmission tower and provides safety protection for workers through a safety belt. The locking structure on this device ensures its stability. However, multiple devices need to be installed to cooperate with each other, and the fixing effect cannot be guaranteed when workers fix this device to the foot spikes. Furthermore, it cannot be used on different power transmission towers. Summary of the Invention

[0004] In view of the problems existing in the above-mentioned technologies, the present invention proposes a fall arrestor for climbing power transmission towers.

[0005] To address the aforementioned technical problems, the present invention provides the following technical solution: a fall arrestor for climbing power transmission towers, comprising a fixed outer shell installed on the corner of the tower, a handle and a rope loop on the fixed outer shell, a clamping mechanism on the fixed outer shell, the clamping mechanism comprising two sets of locking blocks, the two sets of locking blocks securing the fixed outer shell to the corner of the tower, a locking mechanism on the fixed outer shell to prevent the locking blocks from moving, a limit plate slidably disposed on the fixed outer shell, the limit plate having limit holes, and a locking pin slidably disposed on the locking blocks, the locking pin being inserted into the limit holes.

[0006] Furthermore, an electromagnet block is provided inside the fixed outer shell, and the electromagnet block intermittently fixes the second pressing rod.

[0007] Furthermore, the clamping mechanism also includes a spring installed between the locking block and the fixed housing, a sliding post is provided on the locking block, the sliding post is slidably connected to the fixed housing, a pressing rod is slidably provided on the fixed housing, and a connecting rod is provided between the pressing rod and the sliding post.

[0008] Furthermore, the locking block is provided with a mounting plate, the locking pin is slidably mounted on the mounting plate, and a spring is provided between the mounting plate and the locking pin.

[0009] Furthermore, the locking mechanism includes a pressing post slidably mounted on the pressing rod 2, a spring 3 is provided between the pressing post 1 and the pressing rod 2, a set of pressing rods is provided on both sides of the pressing post 1, rollers are rotatably mounted on the pressing rods, and a locking plate is slidably mounted on the fixed housing, with the rollers and the locking plate in contact.

[0010] Furthermore, a push post is slidably provided on the locking plate, and the limiting hole is slidably connected to the push post on the same axis. The push post intermittently pushes the locking post to slide on the mounting plate.

[0011] Furthermore, a baffle is provided on the side of the limiting plate, which blocks the locking pin.

[0012] Furthermore, when the limiting plate slides on the fixed outer shell, the limiting plate drives the limiting hole to move, and the limiting hole drives the pushing column to slide on the locking plate.

[0013] The beneficial effects of this invention compared with the prior art are as follows: When using this invention, two sets of fall arresters are used simultaneously and alternately to avoid accidents caused by the installation of one set when the other set is not properly fixed. The locking mechanism set in this invention prevents the clamping plate from moving accidentally during operation and prevents the fall arrester from falling off. When the fall arrester is subjected to external force or other factors that cause the clamping plate to move, the limiting mechanism will play a role in restricting its movement, maintaining the normal working state of the fall arrester, increasing the reliability of the equipment, and the position of the locking mechanism can be adjusted to be suitable for a variety of different power towers. Attached Figure Description

[0014] Figure 1 This is a left view of the overall structure of the present invention.

[0015] Figure 2 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 3 This is a top view of the fixed outer shell structure of the present invention.

[0017] Figure 4 for Figure 3 Cross-sectional view of the structure along the AA direction.

[0018] Figure 5 This is a cross-sectional view of the fixed outer shell mechanism of the present invention.

[0019] Figure 6 This is a schematic diagram of the locking block structure of the present invention.

[0020] Figure 7This is a schematic diagram showing the installation position of the limiting plate and the fixed outer shell of the present invention.

[0021] Figure 8 This is a schematic diagram showing the installation position of the locking plate of the present invention.

[0022] Attached reference numerals: 1-Tower corner; 2-Foot nail; 3-Fixed outer casing; 4-Handle; 5-Rope loop; 6-Locking block; 7-Pressing post one; 8-Pressing rod; 9-Roller; 10-Locking plate; 11-Spring one; 12-Connecting rod one; 13-Pressing rod two; 15-Sliding post; 16-Mounting plate; 17-Locking post; 18-Spring two; 19-Limiting plate; 20-Baffle; 21-Limiting hole; 22-Pushing post. Detailed Implementation

[0023] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] refer to Figures 1 to 8 The power tower climbing fall arrestor shown includes a fixed housing 3 installed on the tower corner 1, foot nails 2 provided on the tower corner 1, two sets of locking blocks 6 slidably provided on the fixed housing 3, the locking blocks 6 fixing the fixed housing 3 to the tower corner 1, and a locking plate 10 slidably provided on the fixed housing 3, the locking plate 10 fixing the position of the locking blocks 6.

[0025] The lower end of the fixed housing 3 is provided with a handle 4, a fixed housing 3, a clamping mechanism, and a limiting mechanism. The clamping mechanism includes two sets of locking blocks 6 slidably mounted on the fixed housing 3. A sliding post 15 is provided on the locking block 6. A spring 11 is provided between the locking block 6 and the fixed housing 3. A pressing rod 2 13 is provided at the rear end of the fixed housing 3. A spring 4 is provided between the pressing rod 2 13 and the fixed housing 3. A connecting rod 12 is provided between the pressing rod 2 13 and the sliding post 15. A mounting plate 16 is provided on the side of the locking block 6. A locking post 17 is slidably mounted on the mounting plate 16. A spring 2 18 is provided between the locking post 17 and the mounting plate 16. When the pressing rod 2 13 is pressed, the pressing rod 2 13 drives the connecting rod 12 to move. The connecting rod 12 drives the sliding post 15 and the locking block 6 to slide inside the fixed housing 3. The spring 11 is pulled, and at the same time, the locking block 6 drives the mounting plate 16 to move.

[0026] The limiting mechanism includes a limiting plate 19 slidably mounted on a fixed housing 3. A baffle 20 is provided on the side of the limiting plate 19, and the baffle 20 is slidably connected to the fixed housing 3. A limiting hole 21 is provided on the limiting plate 19. When the locking pin 17 is inserted into the limiting hole 21, the locking block 6 is fixed. The baffle 20 blocks the locking pin 17 to prevent it from popping out if it is not inserted into the limiting hole 21. A locking plate 10 is also slidably mounted on the fixed housing 3. A pushing pin 22 is slidably mounted on the locking plate 10. The pushing pin 22 is slidably connected to the limiting hole 21 on the same axis. When the limiting plate 19 moves, the limiting plate 19 drives the limiting hole 21 to move. 21 drives the push column 22 to slide on the locking plate 10, simultaneously changing the position of the push column 22. A pressing column 7 is slidably arranged on the pressing rod 2 13. A spring 3 is arranged between the pressing column 7 and the pressing rod 2 13. A set of pressing rods 8 are arranged on both sides of the pressing column 7. Rollers 9 are rotatably arranged on the pressing rods 8. The rollers 9 are in contact with the locking plate 10. When the pressing column 7 moves, the pressing column 7 drives the pressing rods 8 and rollers 9 to move. The rollers 9 press the locking plate 10 to slide on the fixed housing 3. The locking plate 10 drives the push column 22 to slide in the limiting hole 21. The push column 22 presses the locking column 17, releasing the restriction on the locking block 6.

[0027] An electromagnet block is provided on the fixed outer shell 3. The electromagnet block fixes the pressing rod 13. When the invention is used, the two fall arresters are used alternately. When one set of the two fall arresters is in an unclamped state, the pressing column 7 and pressing rod 13 of the other set of fall arresters cannot be pressed, thus avoiding accidental contact between the tower corner 1 and pressing rod 13.

[0028] Working principle: The safety rope is installed on the rope loop 5. During operation, the two sets of fall arresters are used alternately. In the initial state, the locking pin 17 is inserted into the limiting hole 21. When it is necessary to change the position of this fall arrester, press the pressing pin 7. At this time, the pressing pin 7 moves, but the pressing rod 13 does not move. When the pressing pin 7 is pressed, the pressing pin 7 drives the two sets of pressing rods 8 to move synchronously. The pressing rods 8 drive the roller 9 to press the locking plate 10. When the locking plate 10 moves on the fixed housing 3, the locking plate 10 drives the pushing pin 22 to insert into the limiting hole 21. Subsequently... Push column 22 presses the locking column 17, and the locking column 17 slides on the mounting plate 16. The locking column 17 releases the locking block 6 from the fixed housing 3. At this time, the pressing column 17 presses the spring 3 to its shortest length. Then the pressing column 17 presses the pressing rod 2 13 to move. The pressing rod 2 13 drives the connecting rod 12 to rotate. The connecting rod 12 drives the sliding column 15 and the locking block 6 to slide inside the fixed housing 3. The two sets of locking blocks 6 release the restriction of the tower corner 1. At this time, the fixed housing 3 can be removed from the tower corner 1 and the tower corner 1 can be placed in the second working position.

[0029] When working on iron towers of different specifications, it is necessary to adjust the clamping position of the locking block 6 and the position of the limiting plate 19 on the fixed housing 3. The limiting plate 19 changes the position of the limiting hole 21, and at the same time, the limiting hole 21 drives the pushing column 22 to move on the locking plate 10, changing the clamping position of the locking block 6, so that it can be clamped on different power iron towers.

[0030] When one set of fall arresters is not clamped, the pressing column 7 and pressing rod 13 of the other set of fall arresters cannot be pressed. The electromagnet block on the fixed housing 3 works and fixes the pressing rod 13 to prevent the tower corner 1 and the pressing rod 13 from being accidentally touched.

[0031] This invention is not limited to the specific embodiments described above. Any modifications made by those skilled in the art based on the above concept without creative effort are all within the protection scope of this invention.

Claims

1. A fall arrestor for climbing power transmission towers, comprising a fixed housing (3) installed on a corner (1) of the tower, wherein a handle (4) and a rope loop (5) are provided on the fixed housing (3), characterized in that: The fixed housing (3) is provided with a clamping mechanism, which includes two sets of locking blocks (6). The two sets of locking blocks (6) install the fixed housing (3) on the iron tower corner (1). The fixed housing (3) is also provided with a locking mechanism to prevent the locking blocks (6) from moving. A limit plate (19) is slidably provided on the fixed housing (3). A limit hole (21) is provided on the limit plate (19). A locking post (17) is slidably provided on the locking block (6). The locking post (17) is inserted into the limit hole (21). The clamping mechanism further includes a spring (11) installed between the locking block (6) and the fixed housing (3). The locking block (6) is provided with a sliding post (15), which is slidably connected to the fixed housing (3). The fixed housing (3) is slidably provided with a pressing rod (13), and a connecting rod (12) is provided between the pressing rod (13) and the sliding post (15). The locking block (6) is provided with a mounting plate (16), the locking pin (17) is slidably mounted on the mounting plate (16), and a spring (18) is provided between the mounting plate (16) and the locking pin (17); The locking mechanism includes a pressing post 1 (7) slidably mounted on the pressing rod 2 (13), a spring 3 is provided between the pressing post 1 (7) and the pressing rod 2 (13), a set of pressing rods (8) are provided on both sides of the pressing post 1 (7), a roller (9) is rotatably provided on the pressing rod (8), and a locking plate (10) is slidably provided on the fixed housing (3), with the roller (9) in contact with the locking plate (10); A push post (22) is slidably disposed on the locking plate (10), and the limiting hole (21) is slidably connected to the push post (22) on the same axis. The push post (22) intermittently pushes the locking post (17) to slide on the mounting plate (16).

2. The fall arrestor for climbing power transmission towers according to claim 1, characterized in that: An electromagnet block is provided inside the fixed outer shell (3), and the electromagnet block intermittently fixes the pressing rod (13).

3. A fall arrestor for climbing power transmission towers according to claim 2, characterized in that: The limiting plate (19) is provided with a baffle (20) on its side, and the baffle (20) blocks the locking post (17).

4. A fall arrestor for climbing power transmission towers according to claim 3, characterized in that: When the limiting plate (19) slides on the fixed outer shell (3), the limiting plate (19) drives the limiting hole (21) to move, and the limiting hole (21) drives the pushing column (22) to slide on the locking plate (10).

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