Anti-falling device

Abstract

The utility model discloses an anti-falling device, which relates to the technical field of anti-falling devices and comprises an upper clamping plate and a lower clamping plate which are connected to the upper end and the lower end of a main tower frame of an iron tower; the two tensioners are connected to the upper clamping plate and the lower clamping plate respectively; and the anti-falling rope is connected between the two tensioners. When the anti-falling device is used, a worker wears the safety belt, the anti-falling device is installed on the anti-falling rope, when the worker falls, rapid falling is detected, the anti-falling device is locked immediately, the worker is fixed to the anti-falling rope, the worker is prevented from falling, and the personal safety of the worker when the worker goes up and down an iron tower can be guaranteed through the anti-falling device.

Description

Technical Field

[0001] This utility model relates to the technical field of fall protection devices, and in particular to a fall protection device. Background Technology

[0002] High-voltage transmission line towers in power grids are tower-shaped structures used for power transmission. These towers are typically constructed from angled steel members. During operation and maintenance, regular tower climbing is required. Therefore, foot spikes are installed on one of the main members of the tower to facilitate the ascent and descent of workers. However, during these operations, workers climb the towers barehanded without fall protection, jeopardizing their personal safety.

[0003] To ensure worker safety, the work unit attempted to add safety measures, requiring workers to wear safety belts and use safety double hooks when climbing the tower. Since there are no fixed anchor points on the tower, workers can only hook onto foot spikes or the tower itself. However, this solution also presents significant safety hazards. Regulations stipulate that safety double hooks must be suspended from stable and reliable safety connection points, ensuring that the connection points can withstand the worker's weight and any impact forces from sudden events. This leads to new problems: 1. Foot spikes are too short, making them unreliable anchor points for the safety double hooks, as the hooks are prone to slipping off. 2. The towers are mostly installed at an angle; using safety double hooks as anchor points makes them prone to slipping down the pole, resulting in instability and insecurity. 3. The tower dimensions are inconsistent; on larger tower sections, the safety double hooks cannot hold them securely, and if the worker leans, generating forces in other directions, the hooks can easily slip off. 4. If a smaller tower material is chosen as a barely usable hanging point, the two trenches need to be used alternately when going up and down. The spacing between the hanging points is relatively large, requiring a rhythm of two steps up and one step down to transfer the hook. As a result, the connecting rope of the two trenches will be tethered underfoot, distracting the workers and increasing the possibility of losing balance, which adds new safety hazards to tower climbing operations.

[0004] In conclusion, using the existing structure of the tower in conjunction with a double-groove safety belt cannot guarantee the personal safety of workers going up and down the tower. Utility Model Content

[0005] To address the problems of existing technologies, this utility model provides a fall protection device, comprising:

[0006] The upper and lower clamping plates are connected to the upper and lower ends of the main tower frame of the iron tower;

[0007] Two tensioners are connected to the upper clamping plate and the lower clamping plate, respectively;

[0008] A fall arresting rope is connected between the two tensioners.

[0009] Furthermore, both the upper clamping plate and the lower clamping plate include: an inner clamping plate and an outer clamping plate that are vertically connected;

[0010] The inner clamping plate and the outer clamping plate are connected to the main tower frame of the iron tower, and the outer clamping plate has a round hole on its outer protruding part;

[0011] The tensioner is connected to the circular hole.

[0012] Furthermore, the tensioner includes:

[0013] A threaded rod with a hook at its end, the hook being connected to the circular hole;

[0014] The tensioner body has a threaded hole at one end, and the threaded rod is threaded into the threaded hole.

[0015] A U-shaped ring is connected to the other end of the tensioner body;

[0016] The two ends of the fall arrest rope are connected to the U-shaped ring.

[0017] Furthermore, each end of the U-shaped ring is connected to a first connecting ring, and a first connecting rod is connected between the two first connecting rings. A second connecting ring is sleeved on the first connecting rod, and a second connecting rod is connected to the outer wall of the second connecting ring. The second connecting rod is connected to the tensioner body.

[0018] Furthermore, the tensioner body is a rounded rectangular ring structure.

[0019] Furthermore, the two ends of the fall arrest rope form fall arrest rope knots that are connected to the U-shaped rings, and triangular rings are used as inner linings at the knots.

[0020] Furthermore, the knot of the fall arrest rope is secured with a buckle.

[0021] Furthermore, it also includes: an intermediate clamping plate, which is connected to the middle position of the main tower frame of the iron tower, and a spring retainer is extended outward from the intermediate clamping plate, with the fall arresting rope connected inside the spring retainer.

[0022] The beneficial effects of the technical solution provided by this utility model are as follows: In this utility model, an upper clamping plate and a lower clamping plate are connected to the upper and lower ends of the main tower frame of the iron tower, respectively. Tensioners are connected to both the upper and lower clamping plates, and a fall arresting rope is connected between the two tensioners. When in use, the personnel wear safety belts and install the fall arresting device on the fall arresting rope. When a person falls, a rapid descent is detected, and the fall arresting device immediately locks, fixing the person to the fall arresting rope to prevent the person from falling. This fall arresting device can ensure the personal safety of workers going up and down the iron tower.

[0023] In addition, a middle clamp is connected in the middle of the main climbing material. There is a spring clip on the outer edge of the middle clamp. The fall arrestor rope is connected to the spring clip, which can prevent the fall arrestor rope from swinging too much. The spring clip can also allow the fall arrestor rope to temporarily detach from the clip so that the fall arrestor can pass smoothly. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of a fall protection device provided by this utility model;

[0025] Figure 2 This is a structural schematic diagram of an upper or lower clamping plate provided by this utility model;

[0026] Figure 3 This is a structural schematic diagram of the outer extension protrusion of an outer clamping plate provided by this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of a threaded rod provided by this utility model;

[0028] Figure 5 This is a schematic diagram of the structure of a tensioner body provided by this utility model;

[0029] Figure 6 This is a schematic diagram of the structure of a second connecting rod provided by this utility model;

[0030] Figure 7 This is a schematic diagram of the structure of a U-shaped ring provided by this utility model;

[0031] Figure 8 This is a schematic diagram of the connection between a tensioner and a fall arresting rope provided by this utility model;

[0032] Figure 9 This is a schematic diagram of the connection between a tensioner and a fall arrest rope provided by this utility model.

[0033] Attached reference numerals: 1-Main tower frame; 2-Fall arresting rope; 3-Inner clamping plate; 4-Outer clamping plate; 5-Extended protrusion; 6-Round hole; 7-Threaded rod; 8-Hook; 9-Tightener body; 10-U-shaped ring; 11-First connecting ring; 12-First connecting rod; 13-Second connecting ring; 14-Second connecting rod; 15-Fall arresting rope knot; 16-Intermediate clamping plate; 17-Fall arresting buckle. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0036] It should be noted that in this embodiment, the orientation or positional relationship indicated by terms such as "bottom," "top," "left," and "right" is based on the orientation or positional relationship shown in the accompanying drawings. It is used only for the convenience of describing this application and for simplifying the description, and does 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, it should not be construed as a limitation of this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] It should also be noted that, in this embodiment, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0038] See Figures 1-9 A fall arrestor includes an upper clamp and a lower clamp, which are fixedly connected to the upper and lower ends of the main tower frame 1 of a steel tower. A tensioner is connected to each clamp, and a fall arrestor 2 is connected between the two tensioners. The fall arrestor 2 is made of 8mm diameter steel wire rope, and its length is determined by the distance between the tensioners. The tensioners allow adjustment of the fall arrestor's tension. Before climbing the tower, personnel must wear safety harnesses and install the fall arrestor 17 onto the fall arrestor 2. The steel wire rope must be compatible with the chosen fall arrestor. The fall arrestor can be a self-locking type, typically containing an internal spring-loaded mechanism. Under normal circumstances, it allows movement along the fall arrestor to facilitate personnel movement. In the event of a fall, a rapid descent is detected, and the internal mechanism immediately locks the personnel to the fall arrestor, preventing further fall. This fall arrestor ensures the safety of personnel climbing up and down the steel tower.

[0039] Furthermore, the power transmission tower is a column-type tower constructed from four main tower members and numerous supporting smaller tower members. All tower members are made of galvanized angle iron, and their size and thickness vary depending on their function. One main tower member serves as the climbing path and has numerous foot spikes as support points. In this embodiment, upper and lower clamping plates are fabricated according to the shape of the tower members. These plates are fixed to both ends of the main climbing member. Each upper and lower clamping plate includes a vertically connected inner clamping plate 3 and an outer clamping plate 4. The inner clamping plate 3 and outer clamping plate 4 are secured to the main climbing member using anti-loosening bolts for clamping, thus providing a fixing function. The inner clamping plate 3 and outer clamping plate 4 are made of 4mm steel plate, which can withstand sufficient tensile force to ensure personnel safety. The outer clamping plate 4 has a protruding portion 5 with round holes 6 as attachment points for fall arrest devices.

[0040] Each tensioner includes: a threaded rod 7, a tensioner body 9, and a U-shaped ring 10. One end of the threaded rod 7 is connected to a hook 8, and the hooks 8 of the two threaded rods 7 are respectively hooked to the round holes 6 of the upper and lower clamping plates. The tensioner body 9 is a rounded rectangular ring structure with a threaded hole at one end. The threaded rod 7 is threaded into the threaded hole. Rotating the threaded rod 7 can adjust the overall length of the tensioner, thereby adjusting the tension of the fall arrest rope. The other end of the tensioner body 9 is connected to a second connecting rod 14, and the other end of the second connecting rod 14 is connected to a second connecting ring 13. The second connecting ring 13 is connected to a first connecting rod 12. Both ends of the U-shaped ring 10 are connected to first connecting rings 11, and the two first connecting rings 11 are connected to the two ends of the first connecting rod 12.

[0041] The fall arresting rope 2 has 30cm reserved at each end for making fall arresting rope knots 15. Fall arresting rope knots 15 are connected to U-shaped rings 10. Triangular rings are used as inner linings at the knots to prevent the fall arresting rope 2 and U-shaped rings 10 from wearing out and breaking. Using triangular rings as inner linings to make knots means that when making the knot, the triangular rings are embedded inside the knot to enhance the strength and durability of the knot and protect the fall arresting rope from wear. By using triangular rings as inner linings, the overall strength of the knot can be enhanced because it disperses the force, reduces the stress concentration points directly applied to the fall arresting rope, and reduces the risk of fall arresting rope breakage.

[0042] In addition, three clips are used at each knot to secure the fall arrest rope and prevent it from loosening. Clips, also known as rope clamps, wire rope clips or fasteners, are important components used to fix and connect ropes. They can be U-shaped or M-shaped clips.

[0043] Furthermore, a middle clamping plate 16 is connected in the middle of the climbing main material. The structure of the middle clamping plate is the same as that of the upper and lower clamping plates. There is a spring retainer on the outer edge of the middle clamping plate 16. The fall arresting rope 2 is connected in the spring retainer, which can prevent the fall arresting rope from swinging too much. Since there is no requirement for a large load-bearing capacity, the middle clamping plate can be made of aluminum with a narrower structure, which can save costs. The spring retainer allows the fall arresting rope to temporarily detach from the retainer so that the fall arresting device can pass smoothly.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 fall protection device, characterized in that, include: The upper and lower clamping plates are connected to the upper and lower ends of the main tower frame (1) of the iron tower; Two tensioners are connected to the upper clamping plate and the lower clamping plate, respectively; A fall arresting rope (2) is connected between the two tensioners.

2. The fall arrestor according to claim 1, characterized in that, Both the upper clamping plate and the lower clamping plate include: an inner clamping plate (3) and an outer clamping plate (4) that are vertically connected; The inner clamping plate (3) and the outer clamping plate (4) are connected to the main tower frame (1) of the iron tower, and the outer clamping plate (4) has a round hole (6) on its extended protruding part (5); The tensioner is connected to the circular hole (6).

3. The fall arrestor according to claim 2, characterized in that, The tensioner includes: The threaded rod (7) has a hook (8) at its end, and the hook (8) is connected to the round hole (6); The tensioner body (9) has a threaded hole at one end, and the threaded rod (7) is threaded into the threaded hole; A U-shaped ring (10) is connected to the other end of the tensioner body (9); The two ends of the fall arrest rope (2) are connected to the U-shaped ring (10).

4. The fall arrestor according to claim 3, characterized in that, Both ends of the U-shaped ring (10) are connected to a first connecting ring (11), and a first connecting rod (12) is connected between the two first connecting rings (11). A second connecting ring (13) is sleeved on the first connecting rod (12), and a second connecting rod (14) is connected to the outer wall of the second connecting ring (13). The second connecting rod (14) is connected to the tensioner body (9).

5. The fall arrestor according to claim 3, characterized in that, The tensioner body (9) is a rounded rectangular ring structure.

6. The fall arrestor according to claim 3, characterized in that, The fall arresting rope (2) has fall arresting rope knots (15) at both ends, which are connected to the U-shaped ring (10). Triangular rings are used as inner linings at the knots.

7. The fall arrestor according to claim 6, characterized in that, The fall arrestor rope knot (15) is secured with a buckle.

8. The fall arrestor according to claim 1, characterized in that, Also includes: The intermediate clamp (16) is connected to the middle position of the main tower frame (1) of the iron tower. The intermediate clamp (16) has a spring retainer on its outer edge, and the fall arresting rope (2) is connected inside the spring retainer.

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