A fall protection device for power transmission line towers
By installing V-shaped connecting strips and guide rails on transmission line towers, the problems of easy wear and single-point breakage of traditional connecting strips are solved, thereby improving safety and stability and ensuring double protection for workers in case of fall and flexibility in climbing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI GENERAL MICROWAVE TOWER CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-07-03
AI Technical Summary
In existing power transmission line tower anti-fall devices, traditional single connecting strips are prone to wear and tear, posing safety hazards. They are also prone to breakage when subjected to excessive force at a single point, and cannot effectively disperse the impact force during a fall.
The first and second connecting belts, which adopt a V-shaped layout, are installed through the first and second connecting rings, respectively. Guide rails and climbing poles are set on the tower body to ensure that movement is not hindered during normal operation. The fall arrestor is activated when a fall occurs, and the locking mechanism acts quickly to prevent workers from falling. In the event that one belt breaks, the other belt continues to bear the load.
It improves the safety of equipment use, avoids single-point stress breakage, distributes the load through the V-shaped layout, ensures double protection for workers in case of fall, extends the service life of connecting rings and belts, and enhances climbing flexibility and stability.
Smart Images
Figure CN224441957U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power transmission tower technology, specifically a power transmission line tower anti-fall device. Background Technology
[0002] Transmission towers are the support points for overhead lines. A transmission tower with one circuit is a single-circuit transmission tower, while a transmission tower with two circuits is a double-circuit transmission tower. A single circuit means that one load has one power supply circuit; a double circuit means that one load has two power supply circuits.
[0003] When workers climb power transmission towers, they usually use rigid rail fall arrestors for protection. The reliability of the connection structure between the fall arrestor and the protective clothing worn by the workers directly determines the protective effect. Currently, the industry generally uses the traditional connection method of a single connecting strap plus a fixed hanging ring. Although this structure is simple and low in cost, the connecting strap is prone to wear due to friction and other external factors, which poses certain safety hazards. Therefore, a fall arrestor for power transmission towers is needed. Utility Model Content
[0004] The purpose of this utility model is to provide a fall prevention device for power transmission line towers, which solves the problems mentioned in the background art.
[0005] This application provides a fall arrest device for a power transmission line tower, including a tower body. A connecting frame is fixedly connected to the front wall of the tower body, and a guide rail is fixedly connected to the front wall of the connecting frame. A fall arrester is slidably mounted on the guide rail. A first fixing block and a second fixing block are fixedly connected to the front wall of the fall arrester. The second fixing block is located on one side of the first fixing block. A first connecting ring is fixedly threaded through the first fixing block. A first connecting belt is fixedly connected to the side of the first connecting ring away from the first fixing block. A second connecting ring is fixedly threaded through the second fixing block. A second connecting belt is fixedly connected to the side of the second connecting ring away from the second fixing block. A fixing ring is fixedly provided at the end of the second connecting belt and the first connecting ring away from the fall arrester.
[0006] In use, workers first connect the hooks of their protective clothing to the fixing rings, and then climb the tower using the climbing pole. The guide rail provides a stable running track for the fall arrestor, ensuring that it does not obstruct personnel movement during normal operation. In the event of a fall, the locking mechanism inside the fall arrestor will activate quickly to prevent workers from falling. In addition, the first and second connecting belts can be installed separately through the first and second connecting rings, and the first and second connecting belts are arranged in a V-shape, which can share the load and distribute the tension symmetrically. When one belt breaks, the other belt can continue to bear the load, preventing workers from losing their protection instantly. Through the cooperation of the above structures, the safety of the equipment during use is improved.
[0007] Optionally, the first connecting strip and the second connecting strip are V-shaped.
[0008] By adopting the above technical solution, the V-shaped layout can distribute the weight of the worker and the impact force generated when falling to the first connecting belt and the second connecting belt respectively, avoiding the breakage of the traditional single connecting belt due to excessive force at a single point, and also avoiding long-term contact and friction between the first connecting belt and the second connecting belt.
[0009] Optionally, both the first and second connecting belts are made of high-strength aramid fiber material.
[0010] By adopting the above technical solution, the load-bearing capacity of the first connecting belt and the second connecting belt can be improved.
[0011] Optionally, climbing poles are fixedly connected to both outer walls of the tower body, and two sets of climbing poles are alternately arranged.
[0012] By adopting the above technical solutions, it is possible for staff to climb the tower more flexibly.
[0013] Optionally, multiple connecting frames are provided at equal intervals along the length of the tower body.
[0014] By adopting the above technical solutions, it is beneficial to improve the firmness and stability of the guide rail installation.
[0015] Optionally, the first connecting ring, the fixing ring, and the second connecting ring are all made of stainless steel.
[0016] By adopting the above technical solution, it is beneficial to improve the corrosion resistance of the first connecting ring, the fixing ring, and the second connecting ring, thereby extending their service life.
[0017] Optionally, the retaining ring is connected to a hook on the protective clothing worn by the worker.
[0018] By adopting the above technical solution and cooperating with the hooks on the protective clothing, an effective protective effect can be achieved.
[0019] Optionally, the outer wall of the climbing pole is provided with anti-slip texture.
[0020] By adopting the above technical solution, it is possible to prevent workers from slipping or falling while climbing.
[0021] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:
[0022] The technical solution of this application allows for the separate installation of the first connecting belt and the second connecting belt via the first connecting ring and the second connecting ring. The first connecting belt and the second connecting belt are arranged in a V-shape, which can jointly bear the load and distribute the tensile force symmetrically. Furthermore, if one belt breaks, the other belt can continue to bear the load, preventing workers from losing their protection instantly. Through the cooperation of the above structures, the safety of the equipment during use is improved. Attached Figure Description
[0023] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0024] Figure 1 This is a schematic diagram of the overall structure of a power transmission line tower anti-fall device according to the present invention;
[0025] Figure 2 This is a side view of the structure of a power transmission line tower anti-fall device according to the present invention;
[0026] Figure 3 This is a front view structural diagram of a power transmission line tower anti-fall device according to the present invention;
[0027] Figure 4 for Figure 1 A magnified schematic diagram of the local structure of region A;
[0028] In the diagram: 1. Climbing pole; 2. Tower body; 3. Guide rail; 4. Fall arrestor; 5. First fixing block; 6. First connecting ring; 7. First connecting belt; 8. Fixing ring; 9. Second connecting belt; 10. Second connecting ring; 11. Second fixing block; 12. Connecting frame. Detailed Implementation
[0029] Please see Figure 1-4This utility model provides a technical solution: a power transmission line tower anti-fall device, including a tower body 2, a connecting frame 12 fixedly connected to the front wall of the tower body 2, a guide rail 3 fixedly connected to the front wall of the connecting frame 12, an anti-fall device 4 slidably mounted on the guide rail 3, a first fixing block 5 and a second fixing block 11 fixedly connected to the front wall of the anti-fall device 4, the second fixing block 11 being located on one side of the first fixing block 5, a first connecting ring 6 fixedly passing through the first fixing block 5, a first connecting belt 7 fixedly connected to the side of the first connecting ring 6 away from the first fixing block 5, a second connecting ring 10 fixedly passing through the second fixing block 11, a second connecting belt 9 fixedly connected to the side of the second connecting ring 10 away from the second fixing block 11, and a fixing ring 8 fixedly mounted on the end of the second connecting belt 9 and the first connecting ring 6 away from the anti-fall device 4.
[0030] In the technical solution of this utility model, the first connecting belt 7 and the second connecting belt 9 are V-shaped; the V-shaped layout can distribute the weight of the worker and the impact force generated when falling to the first connecting belt 7 and the second connecting belt 9 respectively, avoiding the breakage of the traditional single connecting belt due to excessive force at a single point, and can also avoid long-term contact and friction between the first connecting belt 7 and the second connecting belt 9.
[0031] In the technical solution of this utility model, both the first connecting belt 7 and the second connecting belt 9 are made of high-strength aramid fiber material, which can improve the load-bearing capacity of the first connecting belt 7 and the second connecting belt 9.
[0032] In the technical solution of this utility model, climbing poles 1 are fixedly connected to both outer walls of the tower body 2, and two sets of climbing poles 1 are alternately set; this helps workers to climb the tower body 2 more flexibly.
[0033] In the technical solution of this utility model, multiple connecting frames 12 are arranged at equal intervals along the length of the iron tower body 2; this is beneficial to improving the firmness and stability of the guide rail 3 installation.
[0034] In the technical solution of this utility model, the first connecting ring 6, the fixing ring 8, and the second connecting ring 10 are all made of stainless steel; this is beneficial to improving the corrosion resistance of the first connecting ring 6, the fixing ring 8, and the second connecting ring 10, thereby extending their service life.
[0035] In the technical solution of this utility model, the fixing ring 8 is connected to the hook on the protective clothing worn by the worker; by cooperating with the hook on the protective clothing, an effective protective effect can be achieved.
[0036] In the technical solution of this utility model, the outer wall of the climbing pole 1 is provided with anti-slip texture; this can prevent workers from slipping their hands or feet while climbing.
[0037] In use, workers first connect the hooks of their protective clothing to the fixing rings 8, and then climb to the top of the tower body 2 using the climbing pole 1. The guide rail 3 provides a stable running track for the fall arrestor 4, ensuring that it does not obstruct personnel movement during normal operation. In the event of a fall, the locking mechanism inside the fall arrestor 4 will be quickly activated to prevent workers from falling. In addition, the first connecting ring 6 and the second connecting ring 10 can be used to separately install the first connecting belt 7 and the second connecting belt 9, which are arranged in a V-shape to share the load and distribute the tension symmetrically. When one belt breaks, the other belt can continue to bear the load, preventing workers from losing protection instantly. Through the cooperation of the above structures, the safety of the equipment during use is improved.
[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A power transmission line tower anti-falling device, characterized in that: The tower body (2) is included. A connecting frame (12) is fixedly connected to the front wall of the tower body (2). A guide rail (3) is fixedly connected to the front wall of the connecting frame (12). A fall arrester (4) is slidably mounted on the guide rail (3). A first fixing block (5) and a second fixing block (11) are fixedly connected to the front wall of the fall arrester (4). The second fixing block (11) is located on one side of the first fixing block (5). A first connecting ring (6) is fixedly threaded through the first fixing block (5). A first connecting belt (7) is fixedly connected to the side of the first connecting ring (6) away from the first fixing block (5). A second connecting ring (10) is fixedly threaded through the second fixing block (11). A second connecting belt (9) is fixedly connected to the side of the second connecting ring (10) away from the second fixing block (11). A fixing ring (8) is fixedly installed at the end of the second connecting belt (9) and the first connecting ring (6) away from the fall arrester (4).
2. The anti-falling device for a power transmission line tower according to claim 1, characterized in that, The first connecting strip (7) and the second connecting strip (9) form a V-shape.
3. The anti-falling device for a power transmission line tower according to claim 1, characterized in that, Both the first connecting belt (7) and the second connecting belt (9) are made of high-strength aramid fiber material.
4. The anti-falling device for a power transmission line tower according to claim 1, characterized in that, Climbing poles (1) are fixedly connected to both outer walls of the tower body (2), and two sets of climbing poles (1) are alternately arranged.
5. The anti-falling device for a power transmission line tower according to claim 1, characterized in that, The connecting frame (12) is provided at equal intervals along the length of the iron tower body (2).
6. The anti-falling device for a power transmission line tower according to claim 1, characterized in that, The first connecting ring (6), the fixing ring (8), and the second connecting ring (10) are all made of stainless steel.
7. The anti-falling device for a power transmission line tower according to claim 1, characterized in that, The fixing ring (8) is connected to the hook on the protective clothing worn by the staff.
8. The anti-falling device of a power transmission line tower according to claim 4, characterized in that, The outer wall of the climbing pole (1) is provided with anti-slip texture.