Anti-falling safety device for iron tower

Abstract

The invention discloses an iron tower anti-falling safety device which comprises an iron tower column and a guide rail structure installed on the iron tower column and further comprises an anti-falling structure used in cooperation with the guide rail structure, and multiple sets of horizontally-arranged climbing rods are arranged on the two sides of the iron tower column in the height direction of the iron tower column at equal intervals. The guide rail structure comprises two sets of mounting frames fixed to the bottom and the top of an iron tower column through bolts and positioning seats arranged on the mounting frames, a steel wire rope is wound between the two sets of positioning seats, and a follow-up anti-falling assembly slides on the steel wire rope. The anti-falling structure comprises a protective waistcoat, a connecting rod detachably connected with the follow-up anti-falling assembly is arranged on the front side of the protective waistcoat, and the anti-falling structure further comprises two sets of hook assemblies installed at the two ends of the front side of the protective waistcoat through ropes. The invention relates to the technical field of electric power engineering, and particularly provides an anti-falling safety device for an iron tower.

Description

Technical Field

[0001] This invention relates to the field of power engineering technology, specifically to a safety device for preventing tower falls. Background Technology

[0002] During the routine maintenance, repair, and construction of power and communication towers, workers frequently need to climb the towers. To prevent falls from heights, effective fall protection devices must be provided. Existing safety devices mainly include safety hooks, safety belts, protective vests, and safety ropes. These devices enhance stability through multi-component linkage. When in use, workers wear a protective vest with two sets of hooks connected to it via a safety rope. These hooks are then held in place and secured to foot spikes. Additionally, there is a set of safety hooks attached to the waist, connected to the safety rope and secured to the tower after each ascent to a certain height, thus providing supplementary fall protection.

[0003] With existing fall arrest devices, workers may accidentally detach the self-locking device from the guide rail or wire rope due to body posture, equipment collisions, or other reasons while climbing or working, resulting in an instant loss of protection. In addition, the hook is cumbersome to operate during climbing, which is not conducive to high-altitude operations. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the handheld hook is cumbersome to operate, and the device is prone to failure due to accidental collisions or operation.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: The present solution provides a safety device for preventing falls from iron towers, including an iron tower column and a guide rail structure installed on the iron tower column, and also includes a fall prevention structure used in conjunction with the guide rail structure. Multiple sets of horizontally arranged climbing rods are provided at equal intervals along the height direction on both sides of the iron tower column. The guide rail structure includes two sets of mounting frames that are respectively fixed to the bottom and top of the iron tower column by bolts, and positioning seats provided on the mounting frames. A steel wire rope is wound between the two sets of positioning seats, and a follow-up fall prevention component slides on the steel wire rope.

[0006] The fall protection structure includes a protective vest, the front of which is provided with a connecting rod that is detachably connected to the follow-up fall protection component, and also includes two sets of hook assemblies that are installed at both ends of the front of the protective vest by ropes.

[0007] Preferred technical solution 1: The follow-up fall arrestor includes a loop-shaped bracket sleeved on the wire rope. The loop-shaped bracket has two sets of guide rods inside, and two sets of guide blocks slide symmetrically on the guide rods. The two sets of guide blocks have concave arcs on their opposite surfaces, and auxiliary rollers are provided on the concave arcs. The inner sidewall of the loop-shaped bracket has two sets of springs, and the other ends of the two sets of springs are respectively connected to the two sets of guide blocks. A pressure block slides inside the loop-shaped bracket below the guide rods. An adjusting screw passes through and is threadedly connected to the loop-shaped bracket, and the other end of the screw is rotatably connected to the pressure block to drive the pressure block to move. The pressure block is provided with an anti-slip rubber pad. The outside of the loop-shaped bracket is bolted to a connecting rod. The wire rope has multiple sets of limiting sleeves equidistantly arranged along its length.

[0008] Preferred technical solution 2: The hook assembly includes a handle and a hook. One end of the handle is installed on the front of the protective vest via a rope. The hook is located at the other end of the handle and has a U-shaped groove in its middle. The climbing pole has a slot, and the U-shaped groove has a protrusion that matches the slot. By holding the handle, the hook is inserted into the slot through the protrusion to achieve precise suspension and fixation.

[0009] Preferred technical solution 3: The climbing rod is provided with guide plates on both sides of the slot. In specific operation, the hook part must be positioned between the two sets of guide plates and pressed downwards to complete the insertion of the protrusion into the slot.

[0010] Preferred technical solution four: Two sets of return springs are provided on one side of the handle, and a sliding grip is provided at the other end of the return spring. The grip is L-shaped and its upper end is slidably located at the bottom of the hook. The horizontal part of the grip protrudes from a U-shaped groove.

[0011] Preferred technical solution five: The anti-slip rubber pad and the pressure block are fixed together by screws.

[0012] Preferred technical solution six: The upper and lower edges of the limiting sleeve are chamfered.

[0013] The present invention proposes a safety device for preventing falls from iron towers, and the beneficial effects achieved by adopting the above structure are as follows:

[0014] (1) Through the dynamic triggering design of the follow-up fall arrestor, the device can slide smoothly along the wire rope during normal climbing. In the event of a fall, the tilt of the device can quickly trigger the friction braking between the pressure block and the wire rope to achieve initial deceleration. If the fall continues, the pressure block will form a rigid mechanical block with the limit sleeve on the wire rope, thereby completely stopping the fall. This dual braking mechanism is responsive and reliable, greatly reducing the risk of falling from a height due to accidental collisions or failure of a single fall arrestor function.

[0015] (2) The hook assembly adopts a U-shaped groove structure with guide blocks, which cooperates with the pre-set slots and guide blocks on the climbing pole. The operator only needs to place the hook between the two sets of guide blocks and press down to allow the protrusion to be accurately inserted into the slot to complete the locking, without the need for repeated aiming or complicated operations. With the L-shaped sliding grip and its return spring, the U-shaped groove opening is automatically closed when not in operation, effectively preventing the climbing pole from accidentally coming off. This design greatly simplifies the hooking process, reduces the complexity of operation and the risk of hooking off due to human error.

[0016] (3) The anti-slip rubber pads of key friction components are fixedly connected to the pressure block with screws. They can be replaced independently after wear or aging without the need for overall disassembly or scrapping of major components. At the same time, the limit sleeves on the wire rope have chamfered edges to allow the auxiliary rollers to pass smoothly, reducing jamming and wear. This modular and user-friendly design not only reduces long-term operating costs but also improves the ease of maintenance and overall reliability of the device. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of a safety device for preventing falls from iron towers proposed in this invention. Figure 1 ;

[0019] Figure 2 This is a perspective view of a safety device for preventing falls from iron towers, as proposed in this invention. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of a fall protection structure for a fall protection safety device for iron towers proposed in this invention;

[0021] Figure 4 This is a schematic diagram of a hook assembly for a safety device to prevent falls from iron towers, as proposed in this invention.

[0022] Figure 5 This is a schematic diagram of a follow-up fall arrestor assembly for a tower fall arrestor safety device proposed in this invention;

[0023] Figure 6 This invention relates to a guide block for a safety device to prevent falls from iron towers.

[0024] Among them, 1. Iron tower column, 2. Fall protection structure, 3. Climbing pole, 4. Mounting frame, 5. Steel wire rope, 6. Follow-up fall protection component, 7. Protective vest, 8. Connecting rod, 9. Hook assembly, 10. U-shaped bracket, 11. Guide rod, 12. Guide block, 13. Auxiliary roller, 14. Spring, 15. Pressure block, 16. Adjusting screw, 17. Limit sleeve, 18. Handle part, 19. Hook part, 20. U-shaped groove, 21. Slot, 22. Protrusion, 23. Guide plate, 24. Return spring, 25. Sliding grip, 26. Anti-slip rubber pad. Detailed Implementation

[0025] The technical inventions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively. Example 1

[0027] like Figures 1-6 As shown, the technical invention adopted by the present invention is as follows: a high-safety sheet metal production equipment, including a tower column 1 and a guide rail structure installed on the tower column 1, and a fall protection structure 2 used in conjunction with the guide rail structure. Multiple sets of horizontally arranged climbing rods 3 are provided at equal intervals along the height direction on both sides of the tower column 1. The guide rail structure includes two sets of mounting brackets 4 that are respectively fixed to the bottom and top of the tower column 1 by bolts, and positioning seats provided on the mounting brackets 4. A steel wire rope 5 is wound between the two sets of positioning seats, and a follow-up fall protection component 6 slides on the steel wire rope 5.

[0028] The fall arrest structure 2 includes a protective vest 7, the front of which is provided with a connecting rod 8 that is detachably connected to the follow-up fall arrest component 6, and also includes two sets of hook components 9 that are installed at both ends of the front of the protective vest 7 by ropes.

[0029] Preferred technical solution 1: The follow-up fall arrestor 6 includes a spiral bracket 10 sleeved on the wire rope 5. The spiral bracket 10 has two sets of guide rods 11 inside, and two sets of guide blocks 12 symmetrically slide on the guide rods 11. The opposing surfaces of the two sets of guide blocks 12 have concave arcs, and auxiliary rollers 13 are provided on the concave arcs. Two sets of springs 14 are provided on the inner sidewall of the spiral bracket 10, and the other ends of the two sets of springs 14 are respectively connected to the two sets of guide blocks 12. A pressure block 15 slides inside the spiral bracket 10 below the guide rods 11. An adjusting screw 16 passes through and is threaded onto the spiral bracket 10, and the other end of the screw is rotatably connected to the pressure block 15, driving the pressure block 15 to move. Anti-slip rubber pads 26 are provided on the pressure block 15. The outside of the spiral bracket 10 is bolted to the connecting rod 8. Multiple sets of limiting sleeves 17 are equidistantly provided along the length of the wire rope 5. In specific use, the wire rope 5 is sleeved on the two... Between the guide blocks 12, the auxiliary rollers 13 contact the wire rope 5 to achieve vertical sliding. Under normal use, the loop bracket 10 and the wire rope 5 move vertically relative to each other, and the limit sleeve 17 does not limit the pressure block 15. When a sudden fall occurs, the loop bracket 10 is tilted by the downward drag force of the connecting rod 8. At this time, the guide block 12 is pressed, and the anti-slip rubber pad 26 at the bottom of the loop bracket 10 is close to the wire rope 5 to increase friction and reduce the falling speed. At the same time, the limit sleeve 17 has a certain thickness. When the fall reaches the limit sleeve 17, the limit sleeve 17 and the two sets of pressure blocks 15 are locked together to prevent further fall. The anti-slip rubber pad 26 is fixed to the pressure block 15 with screws, which makes it easy to replace and maintain the anti-slip rubber pad 26 after it is worn or aged. The upper and lower edges of the limit sleeve 17 are chamfered, so that the auxiliary roller 13 can pass through more easily without being jammed when the guide block 12 moves up and down. Example 2

[0030] Based on Example 1, such as Figure 4 As shown, the hook assembly 9 includes a handle part 18 and a hook part 19. One end of the handle part 18 is installed on the front side of the protective vest 7 via a rope. The hook part 19 is located at the other end of the handle part 18 and has a U-shaped groove 20 in its middle. The climbing pole 3 has a slot 21. The U-shaped groove 20 has a protrusion 22 that matches the slot 21. By holding the handle part 18, the protrusion 22 of the hook part 19 is inserted into the slot 21 to complete the precise suspension and fixation.

[0031] To facilitate identification of the slot 21, guide plates 23 are provided on both sides of the slot 21 for the climbing pole 3. During operation, the hook part 19 must be positioned between the two guide plates 23 and downward force must be applied to insert the protrusion 22 into the slot 21. To prevent operational errors or collisions that could cause the hook assembly 9 to disengage, two sets of return springs 24 are provided on one side of the handle part 18. The other end of the return spring 24 is provided with a sliding grip 25. The sliding grip 25 has an L-shaped structure and its upper end slides at the bottom of the hook part 19. The horizontal part of the grip protrudes into the U-shaped groove 20, which blocks the U-shaped groove 20 when the grip is not held, preventing the climbing pole 3 from slipping out of the U-shaped groove 20.

[0032] Working principle and process

[0033] Normal climbing state: When the operator climbs, they drag the follow-up fall arrestor 6 through the connecting part. At this time, the U-shaped support 10 remains basically vertical, the wire rope 5 is held by a pair of auxiliary rollers 13, and the follow-up fall arrestor 6 can slide smoothly along the wire rope 5. There is a gap between the lower pressure block 15 and the wire rope 5, and the limiting sleeve 17 can pass smoothly through the auxiliary rollers 13.

[0034] Accidental fall trigger state: When a fall occurs, the connecting part is subjected to a downward impact force, causing the U-shaped bracket 10 to tilt instantly. This tilting motion causes the shell to tilt, so that the pressure block 15 and its anti-slip rubber pad 26 are pressed tightly against the wire rope 5 at a certain angle, generating huge sliding friction force and achieving initial rapid braking.

[0035] Ultimate fall arrest condition: If the fall is not completely stopped by the initial braking, the follow-up fall arrest component 6 will continue to slide down. When it slides down to the position of a limit sleeve 17, since the pressure block 15 has tightened the steel wire rope 5, its lower end face will mechanically interfere with the upper end face of the limit sleeve 17, forming a rigid block, thereby completely preventing the follow-up fall arrest component 6 and the workers from continuing to fall.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, material, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, material, or apparatus.

[0037] 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 safety device for preventing falls from iron towers, characterized in that, The utility model relates to a kind of tower column and the guide rail structure installed on tower column, further include the anti-falling structure (2) cooperating with guide rail structure, the two sides of the tower column (1) are equidistant along its height direction and are provided with multiple groups of horizontally arranged climbing poles (3), the guide rail structure includes two groups of mounting bracket (4) respectively by bolt fixed at the bottom and top of tower column (1), and positioning seat is arranged on mounting bracket (4), two groups of positioning seat are wound and have wire rope (5), the wire rope (5) is slid with follow-up anti-falling assembly (6) on it; The anti-falling structure (2) includes a protective vest (7), the front side of the protective vest (7) is provided with a connecting rod (8) detachably connected with the follow-up anti-falling assembly (6), and further includes two hook assemblies (9) installed on the front side of the protective vest (7) by ropes.

2. A safety device for preventing falling of iron tower according to claim 1, characterized in that, The follow-up anti-falling assembly (6) includes a back-shaped bracket (10) sleeved on the wire rope (5), the back-shaped bracket (10) is provided with two guide rods (11) inside, and two guide blocks (12) are symmetrically slid on the guide rods (11), the opposite surfaces of the two guide blocks (12) are provided with concave arcs, and auxiliary rollers (13) are arranged on the concave arcs, the inner side walls of the back-shaped bracket (10) are provided with two springs (14), the other ends of the two springs (14) are connected with the two guide blocks (12) respectively, a pressing block (15) is slid below the guide rods (11) in the back-shaped bracket (10), an adjusting screw rod (16) penetrates through the back-shaped bracket (10) and is threadedly connected, and the other end of the screw rod is rotatably connected with the pressing block (15) to drive the pressing block (15) to move, the pressing block (15) is provided with a non-slip rubber pad (26), the outer part of the back-shaped bracket (10) is bolted with the connecting rod (8), and the wire rope (5) is equidistantly provided with multiple limiting sleeves (17) along the length direction.

3. The anti-falling safety device for iron tower according to claim 1, characterized in that, The hook assembly (9) includes a handle portion (18) and a hook portion (19), one end of the handle portion (18) is installed on the front side of the protective vest (7) by a rope, the hook portion (19) is arranged at the other end of the handle portion (18) and is provided with a U-shaped groove (20) in the middle part, the climbing pole (3) is provided with a slot (21), and the U-shaped groove (20) is provided with a protrusion (22) matched with the slot (21).

4. The anti-falling safety device for iron tower according to claim 3, characterized in that, The climbing pole (3) is provided with a guide plate (23) on both sides of the slot (21).

5. The anti-falling safety device for iron tower according to claim 3, characterized in that, One side of the handle portion (18) is provided with two reset springs (24), the other end of the reset spring (24) is provided with a sliding handle (25), the sliding handle (25) is provided in an L-shaped structure and the upper end is slidably arranged at the bottom of the hook portion (19).

6. A safety device for preventing falling of a tower according to claim 5, wherein The non-slip rubber pad (26) and the pressing block (15) are fixed by screws.

7. A safety device for preventing falling of a tower according to claim 6, characterized in that, The upper and lower end edges of the limiting sleeve (17) are designed as chamfers.

Images