Power tower anti-falling protection device
By using the slot and plug design of the T-shaped guide rail and the method of setting a scraper on the fall arrestor, the problems of low installation efficiency of the guide rail and the impact of dirt on use are solved, achieving efficient installation and cleaning, and extending the service life of the fall arrestor for power towers.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI YIJIE ELECTRIC POWER EQUIPMENT CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-07-24
AI Technical Summary
The existing fall arrestor rails for power transmission towers have low installation efficiency, and after long-term use, dirt and grime affect the effectiveness and lifespan of the fall arrestor.
The device adopts a T-shaped guide rail structure, using slots and plugs to achieve quick assembly of guide rail sections, and is equipped with a scraper on the fall arrestor to clean the guide rail, improving installation efficiency and preventing dirt from affecting use.
This improves the installation efficiency of the guide rail, ensures smooth sliding of the fall arrestor, and extends the service life of the device.
Smart Images

Figure CN224540828U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of power transmission tower technology, and in particular relates to a power transmission tower anti-fall protection device. Background Technology
[0002] Power transmission towers are ubiquitous. To ensure the normal operation of the equipment, maintenance personnel frequently need to climb these towers for repairs and routine inspections. Power transmission towers are tall and steep, so fall protection devices are necessary to ensure the safety of workers. Currently, fall protection devices typically consist of guide rails fixed to the transmission tower and fall arresters that slide along the guide rails.
[0003] Existing fall arrest devices have the following problems during installation and use: 1. The guide rails are not easy to install seamlessly, resulting in low installation efficiency. 2. After prolonged use, bird droppings, rust, and other dirt may accumulate on the guide rails, which may prevent the fall arrester from sliding smoothly on the guide rails, and in severe cases, may affect the service life of the entire fall arrest device.
[0004] To solve the above problems, a new type of power tower fall protection device is needed. Utility Model Content
[0005] The purpose of this utility model is to provide a fall protection device for power transmission towers, which can solve the problems of low installation efficiency of guide rails and the impact of dirt on the guide rails on the effectiveness and lifespan of the fall arrestor in the existing technology.
[0006] To achieve the above objectives, this utility model provides a power tower fall protection device, including a T-shaped guide rail and a fall arrester slidably connected to the T-shaped guide rail. The T-shaped guide rail includes several guide rail sections laid along the climbing path of the power tower. Each guide rail section has a slot on one end face and an insertion block adapted to the slot structure on the other end face. Each guide rail section has a connector that penetrates the slot. The insertion block has a connection hole corresponding to the connector. The inner plane of each guide rail section is connected to the power tower by a fixing member. The fall arrester is correspondingly connected to the outer plane of the guide rail section and two slot surfaces. The top of the fall arrester is detachably connected to a shovel adapted to the slot surface structure.
[0007] Preferably, the connector is a double-ended bolt, one end of the connector is located on the outer plane, the other end of the connector is located on the inner plane, a gap is provided between the fall arrestor and the outer plane, and the fall arrestor is connected to the two groove surfaces respectively through two sets of rollers.
[0008] Preferably, each guide rail section has three connectors, which are arranged in a triangular array.
[0009] Preferably, the fixing component includes a first fixing block, a second fixing block, and a bolt. The first fixing block is fixedly connected to the power tower, the second fixing block is fixedly connected to the inner plane, there are two second fixing blocks symmetrically arranged on both sides of the first fixing block, and the bolt passes through and connects the first fixing block and the second fixing block.
[0010] Preferably, the top surface of the fall arrester is connected to a mounting base by screws, and the top of the mounting base is connected to a scraper by screws, with a blade at the contact point between the scraper and the groove surface.
[0011] Therefore, the power tower fall protection device of this utility model with the above-described structure has the following beneficial effects:
[0012] 1. It can easily achieve a seamless splicing of two guide rail sections using slots and plugs, thereby improving the installation efficiency of the entire T-shaped guide rail;
[0013] 2. A scraper can be used to clean the T-shaped guide rails, preventing dirt from affecting the effectiveness and lifespan of the fall arrestor.
[0014] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of an embodiment of the power tower anti-fall protection device of this utility model;
[0016] Figure 2 This is a schematic diagram of the structure of another embodiment of the power tower anti-fall protection device of this utility model;
[0017] Figure 3 This is a structural schematic diagram of an embodiment of a fixing component in a power tower fall protection device according to the present invention.
[0018] In the diagram: 1. Fall arrestor; 2. Guide rail section; 21. Outer plane; 22. Groove surface; 23. Inner plane; 3. Slot; 4. Insert block; 5. Connector; 6. Connecting hole; 7. Fixing component; 71. First fixing block; 72. Second fixing block; 73. Bolt; 8. Shovel; 9. Gap; 10. Roller; 11. Mounting base; 12. Blade. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0021] Example
[0022] Reference Figures 1-3 As shown, this embodiment provides a fall arrestor for power transmission towers, including a T-shaped guide rail and a fall arrestor 1 slidably connected to the T-shaped guide rail. The T-shaped guide rail includes several guide rail sections 2 laid along the climbing path of the power transmission tower. Each guide rail section 2 has a slot 3 on one end face and an insertion block 4 adapted to the structure of the slot 3 on the other end face. Each guide rail section 2 has a connector 5 that penetrates the slot 3, and the insertion block 4 has a connection hole 6 corresponding to the connector 5. The connection hole 6 is used to fix two adjacent guide rail sections 2, thereby increasing the overall stability of the T-shaped guide rail. The inner plane 23 of each guide rail section 2 is connected to the power transmission tower through a fixing member 7, which is used to fix the T-shaped guide rail to the power transmission tower. The fall arrestor 1 is connected to the outer plane 21 and the two groove surfaces 22 of the guide rail section 2. The top of the fall arrestor 1 is detachably connected to a scraper 8 that is adapted to the structure of the groove surface 22. The scraper 8 can clean the two groove surfaces 22 of the T-shaped guide rail.
[0023] During installation, slots 3 and inserts 4 are used to quickly assemble the two guide rail sections 2, and connectors 5 are used to fix the two guide rail sections 2 together. Then, fasteners 7 are used to fix the assembled two guide rail sections 2 to the power tower. Repeating the above steps completes the installation and fixation of the entire T-shaped guide rail on the power tower. Subsequently, the fall arrestor 1 is installed on the T-shaped guide rail. In use, as workers climb the power tower, the fall arrestor 1 slides upward along the T-shaped guide rail. During the sliding process, the scraper 8 can clean the two groove surfaces 22 of the T-shaped guide rail, preventing dirt adhering to the guide rail from affecting the effectiveness and lifespan of the fall arrestor 1.
[0024] In a further optimized scheme, the connector 5 is a double-headed bolt. One end of the connector 5 is located on the outer plane 21, and the other end of the connector 5 is located on the inner plane 23. A gap 9 is provided between the fall arrestor 1 and the outer plane. The fall arrestor 1 is connected to two groove surfaces 22 respectively through two sets of rollers 10.
[0025] During use, both ends of the connector 5 are prevented from contacting or colliding with the fall arrestor 1, thereby ensuring the smooth sliding of the fall arrestor 1 on the T-shaped guide rail while achieving a fixed connection between two adjacent guide rail sections 2.
[0026] In a further optimized scheme, the number of connectors 5 on each guide rail section 2 is 3, and the 3 connectors 5 are distributed in a triangular array.
[0027] In use, the three connectors 5 can ensure the connection strength between two adjacent guide rail sections 2. At the same time, the cooperation between the insert 4 and the connectors 5 can avoid the reduction in the strength of the guide rail section 2 caused by the opening of the groove.
[0028] In a further preferred embodiment, the fastener 7 includes a first fixing block 71, a second fixing block 72, and a bolt 73. The first fixing block 71 is fixedly connected to the power tower, and the second fixing block 72 is fixedly connected to the inner plane 23. There are two second fixing blocks 72, which are symmetrically arranged on both sides of the first fixing block 71. The bolt 73 passes through and connects the first fixing block 71 and the second fixing block 72.
[0029] In use, bolts 73 are used to sequentially pass through the second fixing block 72, the first fixing block 71, and another second fixing block 72, thereby achieving the installation and fixation of the T-shaped guide rail on the power tower.
[0030] In a further optimized design, the top surface of the fall arrestor 1 is connected to a mounting base 11 by screws, and the top of the mounting base 11 is connected to a scraper 8 by screws. The scraper 8 has a blade 12 at the contact point with the groove surface 22.
[0031] In use, the mounting base 11 can be easily removed from the fall arrestor 1 using screws, and the shovel 8 can be easily removed from the mounting base 11 using screws. The combination of screws makes it easy to replace the shovel 8.
[0032] Therefore, the power tower fall protection device of this utility model with the above-mentioned structure can improve the installation efficiency of T-shaped guide rails and also achieve cleaning of T-shaped guide rails.
[0033] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0034] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. A fall protection device for power transmission towers, characterized in that: The device includes a T-shaped guide rail and a fall arrestor (1) slidably connected to the T-shaped guide rail. The T-shaped guide rail includes several guide rail sections (2) laid along the climbing path of the power tower. Each guide rail section (2) has a slot (3) on one end face and a plug (4) adapted to the structure of the slot (3) on the other end face. Each guide rail section (2) has a connector (5) that passes through the slot (3). The plug (4) has a connection hole (6) corresponding to the connector (5). The inner plane (23) of each guide rail section (2) is connected to the power tower through a fixing member (7). The fall arrestor (1) is connected to the outer plane (21) and two groove surfaces (22) of the guide rail section (2). The top of the fall arrestor (1) is detachably connected to a shovel (8) adapted to the structure of the groove surface (22).
2. The power tower fall protection device according to claim 1, characterized in that: The connector (5) is a double-headed bolt. One end of the connector (5) is located on the outer plane (21), and the other end of the connector (5) is located on the inner plane (23). There is a gap (9) between the fall arrestor (1) and the outer plane. The fall arrestor (1) is connected to the two groove surfaces (22) respectively through two sets of rollers (10).
3. The power tower fall protection device according to claim 2, characterized in that: The number of connectors (5) on each guide rail section (2) is 3, and the 3 connectors (5) are distributed in a triangular array.
4. The power tower fall protection device according to claim 1, characterized in that: The fastener (7) includes a first fastening block (71), a second fastening block (72), and a bolt (73). The first fastening block (71) is fixedly connected to the power tower, and the second fastening block (72) is fixedly connected to the inner plane (23). There are two second fastening blocks (72) symmetrically arranged on both sides of the first fastening block (71). The bolt (73) passes through and connects the first fastening block (71) and the second fastening block (72).
5. The power tower fall protection device according to claim 1, characterized in that: The top surface of the fall arrestor (1) is connected to a mounting base (11) by screws, and the top of the mounting base (11) is connected to a shovel (8) by screws. The shovel (8) has a blade (12) at the contact point with the groove surface (22).