Anti-falling foot peg for overhead transmission line tower

By installing safety hooks, foot pedal angle sensors, spring limiters, and tilt sensors on the fall arrestor spikes, the problems of slipping and instability during high-altitude operations have been solved, thus improving the stability and safety of high-altitude operations.

CN117365264BActive Publication Date: 2026-05-12SHENZHEN POWER SUPPLY BUREAU
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN POWER SUPPLY BUREAU
Filing Date
2023-10-27
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing fall arrestor foot spikes are prone to slipping or instability during high-altitude operations, posing safety hazards. Furthermore, fall arrestor guide rail equipment is costly and complex to operate, making it difficult to adopt widely.

Method used

A fall protection foot spike for overhead transmission line towers was designed. It uses a safety hook that forms an angle with the foot pedal body, combined with a fixing screw and spring limit, and is equipped with an inclination sensor and alarm system to monitor and provide feedback on the inclination angle of the foot spike.

Benefits of technology

It improves the stability and safety of high-altitude operations, and reduces the risk of falls from heights by providing real-time warnings through limit switches and monitoring systems.

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Abstract

The application discloses an anti-falling foot nail for an overhead power transmission line pole tower, which comprises a footrest body, a fixed screw rod is fixedly connected to one side surface of the footrest body, a nut group is threadedly sleeved outside the fixed screw rod, an anti-skid strip is arranged on the surface of the footrest body, a safety hook is arranged on the other side surface of the footrest body, and the safety hook and the footrest body form an oblique angle in the horizontal direction; and a plurality of groups of the footrest bodies are evenly and alternately fixed to the left and right sides of a power transmission line pole body through the fixed screw rods. The application overcomes the defects that a high-altitude operator is prone to slipping or unstable standing during the use of the foot nail for the overhead power transmission line pole tower, which leads to sliding and causes scratches; and the application also solves the problem that the power transmission tower is exposed to the wind for a long time, which may cause the inclination of some foot nails.
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Description

Technical Field

[0001] This invention relates to the field of power field operation tools, specifically to a type of anti-falling foot nail for overhead transmission line towers. Background Technology

[0002] In recent years, the power industry has experienced numerous accidents involving falls from heights resulting in injuries and fatalities. A technical analysis of these accidents reveals that the cause is the loss of safety harness protection while workers are climbing transmission towers. Currently, the most effective solution is to install fall arrestor rails on transmission towers. While fall arrestor rails can compensate for the lack of safety protection during climbing with foot spikes and ladders, achieving a closed-loop safety protection system for high-altitude operations, their high cost and complex operation limit their widespread adoption in China.

[0003] Fall arresting spikes are characterized by their simple structure, convenient installation, lack of interference with power lines, safety, reliability, and versatility. However, workers at heights are prone to slipping or losing their footing when standing on individual spikes, leading to falls and injuries, posing a safety hazard. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a fall prevention foot nail for overhead transmission line towers to improve the safety of high-altitude operations.

[0005] To solve the above-mentioned technical problems, the present invention provides a foot spike for preventing falls from overhead transmission line towers, characterized in that it includes: a foot pedal body, a fixing screw fixedly connected to one side of the foot pedal body, a nut assembly threaded on the outer side of the fixing screw, an anti-slip strip on the surface of the foot pedal body, and a safety hook on the other side of the foot pedal body, the safety hook forming an oblique angle with the horizontal direction of the foot pedal body;

[0006] Multiple sets of foot pedals are evenly and alternately fixed to the left and right sides of the power line pole by the fixing screws.

[0007] Preferably, the safety hook is slidably disposed in the foot pedal body, and a slot is provided in the foot pedal body, the inner wall of the slot being connected to the safety hook by a first spring.

[0008] Preferably, the pedal body is fixedly connected to the fixing screw via a connecting rod, and a fixing block is fitted onto the side of the connecting rod closest to the pedal body.

[0009] Preferably, a pivot sleeve is fixedly installed on both sides of the pedal body, and a support rod is rotatably connected inside the pivot sleeve. A soft rubber pad is glued to the outside of the support rod.

[0010] Preferably, a sleeve is fitted in the middle of the connecting rod body, and the sleeve is fixedly connected to the collar plate through multiple elastic guide plates.

[0011] Preferably, two sets of fixing mechanisms are respectively provided on the inner walls of both sides of the fixing block. The fixing mechanism includes a fixing shell, a second spring, and a locking block. The fixing shell has a groove, and the inner wall of the groove is connected to the locking block through the second spring. The locking block slides through the fixing shell.

[0012] Preferably, a monitoring component is detachably fitted on the outside of the fixing block. The monitoring component includes a fixing shell, a mounting frame, a tilt sensor, and an alarm. The fixing shell is fitted on both sides of the fixing block. The fixing shell has a snap-fit ​​hole at the position of the snap-fit ​​block on the surface of the fixing block, and the snap-fit ​​hole is slidably snap-fitted with the snap-fit ​​block head. The mounting frame is fixedly installed at the bottom of the fixing shell.

[0013] Preferably, the tilt sensor is fixedly installed inside the mounting frame, the alarm is fixedly installed at the bottom of the mounting frame, and heat dissipation holes are respectively provided on both sides of the mounting frame.

[0014] Preferably, multiple tilt sensors are used to connect to an external control center. The control center sets that when the foot spike tilts beyond a set threshold, the tilt sensor triggers the alarm. The control center also transmits the information to a remote terminal via a signal, allowing the operator to view it remotely.

[0015] Preferably, the angle formed by the safety hook and the horizontal direction of the foot pedal body is 35°-45°.

[0016] The present invention offers the following advantages: By setting the safety hook at an angle to the horizontal direction of the foot pedal, the safety hook can limit the worker's feet during climbing; the safety hook suspends the safety rope and, in conjunction with the first spring and fixing block, can limit feet of different sizes; by evenly and alternately fixing the foot pedal to the left and right sides of the power line pole with fixing screws, the operator can exert force with all four limbs during climbing, improving the stability of the climb. The present invention monitors the tilt angle of the foot pedals using a tilt sensor and feeds it back to an alarm and a remote terminal. Workers at height can be notified of foot pedal tilting through the alarm or view which foot pedal is tilting on their mobile phones, improving the safety of workers at height. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of anti-fall footings for overhead transmission line towers according to an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the assembly structure of the anti-fall footings of the overhead transmission line tower and the transmission line pole body according to an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the mounting and fixing block in an embodiment of the present invention.

[0021] Figure 4 for Figure 3 A cross-sectional view of the structure shown.

[0022] Figure 5 for Figure 4 The diagram shows the structure after the sleeve is installed.

[0023] Figure 6 for Figure 5 The cross-sectional view of the fixed block shown.

[0024] Figure 7 for Figure 5 The diagram shows the structure after the monitoring components are installed.

[0025] Figure 8 for Figure 7 Schematic diagram of the monitoring component structure.

[0026] Figure 9 for Figure 7 The control module diagram of the structure shown is shown.

[0027] Figure 10 for Figure 7 The diagram shows the assembly structure of the structure and the power line pole.

[0028] The attached diagram is labeled as follows: 1. Safety hook; 2. Foot pedal body; 3. Fixing screw; 4. Power line pole body; 5. Nut assembly; 6. Connecting rod body; 7. Fixing block; 8. First spring; 9. Rotary shaft sleeve; 10. Support rod; 11. Soft rubber pad; 12. Sleeve; 13. Elastic guide plate; 14. Collar plate; 15. Monitoring component; 16. Fixing housing; 17. Snap-fit ​​hole; 18. Mounting frame; 19. Heat dissipation hole; 20. Tilt sensor; 21. Alarm; 71. Fixing housing; 72. Groove; 73. Second spring; 74. Clip block. Detailed Implementation

[0029] The following descriptions of various embodiments are based on the accompanying drawings, illustrating specific embodiments in which the present invention can be implemented. In the description of the present invention, it should be understood that the terms "longitudinal," "length," "circumferential," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0030] Please refer to the following at the same time Figure 1 and Figure 2 As shown, this embodiment of the invention provides a fall protection foot spike for overhead transmission line towers, comprising: a foot pedal body 2, a fixing screw 3 fixedly connected to one side of the foot pedal body 2, a nut group 5 threaded on the outer side of the fixing screw 3, an anti-slip strip on the surface of the foot pedal body 2, and a safety hook 1 on the other side of the foot pedal body 2, the safety hook 1 forming an oblique angle with the horizontal direction of the foot pedal body 2;

[0031] Multiple sets of foot pedals 2 are evenly and alternately fixed to the left and right sides of the power line pole 4 by the fixing screws 3.

[0032] Specifically, the foot pedal 2 is square with rounded sides, and the safety hook 1 is at a 35°-45° angle to the horizontal direction of the foot pedal 2. This design allows the safety hook 1 to limit the movement of the worker's feet during climbing. Multiple sets of foot pedals 2 are evenly and alternately fixed to the left and right sides of the power line pole 4 by fixing screws 3, allowing the operator to use their limbs for support during climbing and improving the stability of the climb.

[0033] Please refer to Figure 3 and Figure 4 As shown, the safety hook 1 is slidably disposed inside the foot pedal body 2. A slot is provided inside the foot pedal body 2. The inner wall of the slot is connected to the safety hook 1 through the first spring 8. The safety hook 1 can limit the movement of feet of different sizes through the first spring 8.

[0034] The pedal body 2 is fixedly connected to the fixing screw 3 via the connecting rod body 6. The fixing block 7 is mounted on the side of the connecting rod body 6 near the pedal body 2. The fixing block 7 is used in conjunction with the installation hook to improve the stability of the leg limit.

[0035] like Figure 5As shown, rotating bushings 9 are fixedly installed on both sides of the foot pedal body 2. The foot rod 10 is rotatably connected inside the rotating bushing 9. Soft rubber pads 11 are glued to the outside of the foot rod 10. The operator can rotate the foot rod 10 during the climbing process to make the foot rod 10 rotate out, thereby further supporting the feet. After the foot rod 10 rotates back, the soft rubber pads 11 on the outside of the foot rod 10 can improve the comfort of the operator's hands when gripping during the climbing process.

[0036] A sleeve 12 is fitted in the middle of the connecting rod body 6. The sleeve 12 is fixedly connected to the collar plate 14 through multiple elastic guide plates 13. After the foot nail is installed on the power line pole body 4, the collar plate 14 will be pressed against the outer wall of the power line pole body 4 by the deformation of the elastic guide plates 13. The elastic force generated by the deformation of the elastic guide plates 13 acts on the nut assembly 5 to prevent the power line pole body 4 from shaking under the action of wind, which would cause the nut assembly 5 of the foot nail to shake.

[0037] For example Figure 6 As shown, two sets of fixing mechanisms are respectively provided on the inner walls of both sides of the fixing block 7. The fixing mechanism includes a fixing shell 71, a second spring 73, and a clamping block 74. A groove 72 is provided in the fixing shell 71. The inner wall of the groove 72 is connected to the clamping block 74 through the second spring 73. The clamping block 74 slides through the fixing shell 71. Pressing the clamping block 74 inward, the clamping block 74 presses the second spring 73 and slides into the groove 72, which facilitates the installation of the monitoring component 15.

[0038] like Figure 7 and Figure 8 As shown, a monitoring component 15 is detachably fitted onto the outside of the fixing block 7. The monitoring component 15 includes a fixing housing 16, a mounting frame 18, a tilt sensor 20, and an alarm 21. The fixing housing 16 is fitted onto both sides of the fixing block 7. The fixing housing 16 has a snap-fit ​​hole 17 at the position of the snap-fit ​​block 74 on the surface of the fixing block 7, and the snap-fit ​​hole 17 is slidably snapped into the snap-fit ​​block head. The mounting frame 18 is fixedly installed at the bottom of the fixing housing 16. The tilt sensor 20 is fixedly installed inside the mounting frame 18. The alarm 21 is fixedly installed at the bottom of the mounting frame 18. Heat dissipation holes 19 are respectively opened on both sides of the mounting frame 18. After the snap-fit ​​hole 17 in the fixing housing 16 of the monitoring component 15 is aligned with the snap-fit ​​block 74, the snap-fit ​​block 74 is ejected from the groove 72 by the elastic force of the second spring 73 and snaps into the snap-fit ​​hole 17, thereby fixing the monitoring component 15. This structural design allows operators to quickly disassemble the monitoring component 15 and inspect the sensors in the monitoring component 15.

[0039] Reference Figure 9Multiple tilt sensors 20 are connected to an external control center. When the tilt of the foot spike exceeds a set threshold, the tilt sensor 20 will trigger an alarm 21, and the control center will transmit the information to a remote terminal via a signal. The operator can view the information through the remote terminal. By monitoring the tilt angle of the foot spike through the tilt sensor 20 and feeding it back to the alarm 21 and the remote terminal, the worker at height can know that the foot spike is tilted through the alarm 21, or see which foot spike is tilted on their mobile phone, thus improving the safety of the worker at height.

[0040] In this invention, foot pedals 2 are alternately fixed to the left and right sides of the power line pole 4, allowing the operator to exert force with their limbs during climbing, thus improving the stability of the climb. The safety hook 1 is at a 35-45° angle to the foot pedals 2 in the horizontal direction. During the climb, the safety hook 1 can limit the foot movement and suspend the safety rope. The safety hook 1 is connected to the first spring 8. When operators of different sizes step on the foot pedals 2, their feet push against the safety hook 1 and move outward, thus limiting the foot movement.

[0041] During the climbing process, in order to improve stability, the operator can rotate the foot support rods 10 on both sides of the foot pedal body 2 to turn the foot support rods 10 out, which can further support the feet. After the foot support rods 10 are turned back, the soft rubber pads 11 set on the outside of the foot support rods 10 improve the comfort of the operator's hands during the climbing process.

[0042] The tilt sensor 20 is connected to an external control center. When the tilt of the foot spike exceeds a set threshold, the tilt sensor 20 will trigger an alarm 21, and the control center will transmit the information to a remote terminal via a signal. The operator can view this information through the remote terminal. The tilt sensor 20 monitors the tilt angle of the foot spike and feeds it back to the alarm 21 and the remote terminal. The worker can know the foot spike is tilted through the alarm 21 or see which foot spike is tilted on their mobile phone, thus improving the safety of the worker. When the tilt sensor 20 is damaged or needs repair, the clamping block 74 is pressed inward. The clamping block 74 presses the geothermal spring 73 and slides into the groove 72, causing the clamping block 74 to move out of the locking hole 17. The monitoring component 15 can then be removed to repair or repair the tilt sensor 20. Similarly, during installation, the locking hole 17 of the fixing sleeve 16 is locked into the outside of the clamping block 74 to complete the installation of the monitoring component 15.

[0043] The above description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. Therefore, any equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A type of anti-falling footing for overhead transmission line towers, characterized in that, include: The pedal body has a fixed screw connected to one side via a connecting rod. A nut assembly is threaded onto the outer side of the fixed screw. The surface of the pedal body is provided with anti-slip strips. A safety hook is provided on the other side of the pedal body, and the safety hook forms an angle with the horizontal direction of the pedal body. A fixing block is fitted onto the side of the connecting rod closest to the pedal body. Two sets of fixing mechanisms are respectively provided on the inner walls of both sides of the fixing block. Each fixing mechanism includes a fixing shell, a second spring, and a locking block. A groove is provided in the fixing shell. The inner wall of the groove is connected to the locking block through the second spring. The locking block slides through the fixing shell. A monitoring component is detachably fitted onto the outside of the fixing block. The monitoring component includes a fixing housing, a mounting frame, a tilt sensor, and an alarm. The fixing housing is fitted onto both sides of the fixing block. The fixing housing has snap-fit ​​holes at the positions of the snap-fit ​​blocks on the surface of the fixing block, and the snap-fit ​​holes are slidably snap-fitted with the snap-fit ​​blocks. The mounting frame is fixedly installed at the bottom of the fixing housing. The tilt sensor is fixedly installed inside the mounting frame, and the alarm is fixedly installed at the bottom of the mounting frame. Heat dissipation holes are respectively provided on both sides of the mounting frame. Multiple sets of foot pedals are evenly and alternately fixed to the left and right sides of the power line pole by the fixing screws.

2. The anti-falling footing for overhead transmission line towers according to claim 1, characterized in that, The safety hook is slidably disposed in the foot pedal body, and a slot is provided in the foot pedal body. The inner wall of the slot is connected to the safety hook by a first spring.

3. The anti-fall footing for overhead transmission line towers according to claim 2, characterized in that, Rotary shaft sleeves are fixedly installed on both sides of the pedal body. The support rod is rotatably connected inside the rotating shaft sleeve, and a soft rubber pad is glued to the outside of the support rod.

4. The anti-falling footing for overhead transmission line towers according to claim 3, characterized in that, A sleeve is fitted in the middle of the connecting rod, and the sleeve is fixedly connected to the collar plate through multiple elastic guide plates.

5. The anti-falling footing for overhead transmission line towers according to claim 4, characterized in that, The tilt sensor is used to connect to an external control center. When the tilt of the foot spike exceeds a set threshold, the tilt sensor triggers the alarm. The external control center also transmits the information to a remote terminal for the operator to view.

6. The anti-fall footing for overhead transmission line towers according to claim 1, characterized in that, The angle between the safety hook and the horizontal direction of the foot pedal is 35°-45°.