Fall arrest device and tower structure

Abstract

The application relates to a falling-prevention device and a tower structure. The falling-prevention device comprises fixing frames and a rope, at least two fixing frames are arranged at intervals from each other along a first direction, and two ends of the rope are connected to two adjacent fixing frames. The fixing frame comprises two main plates, a connecting part and a fastener, the two main plates are connected and arranged at an angle, the two main plates respectively have mutually facing abutting surfaces, and at least one connecting part is arranged on the surface of each main plate away from the abutting surface. Each fastener is arranged along a second direction at an angle with the first direction, one end of the fastener is connected to the connecting part, and the other end is bent towards a side vertical surface adjacent to the abutting surface and extends out of the abutting surface. During installation, the abutting surfaces of the two main plates are abutted to the two outer surfaces of the angle iron frame at an angle, the connecting part, the main plates and the angle iron frame are fastened by the fastener, and the fixing frame is firmly installed on the angle iron frame under the action of the two fasteners arranged at an angle.

Description

Technical Field

[0001] This application relates to the field of tower technology, and in particular to fall arrest devices and tower structures. Background Technology

[0002] Power supply lines are installed along railway lines, and the towers for these lines are typically steel structures, ranging from 10 to 20 meters in height. Railway power supply must reliably and continuously supply electricity to electric locomotives and ensure the safe and reliable supply of electricity for production and daily life along the railway line. Therefore, routine maintenance and repair of the power supply lines are essential and important.

[0003] Climbing towers is a necessary step in maintenance work. To ensure safety, fall protection devices need to be installed on the towers. Fall protection devices generally include an upper fixed frame, a lower fixed frame, and a rope. The upper and lower fixed frames are fixed to the tower, and both ends of the rope are fixed to the upper and lower fixed frames. A self-locking device is installed on the rope, allowing maintenance personnel to slide up and down. In the event of a fall, the self-locking device automatically locks to prevent the person from falling.

[0004] Traditional fall arrestors are usually fixed to the tower with bolts, which requires drilling holes in the tower, making installation inconvenient and affecting the structural strength of the tower. Utility Model Content

[0005] Therefore, it is necessary to provide a fall protection device that can install the fixing frame without drilling holes in the tower.

[0006] In a first aspect, this application provides a fall protection device, the fall protection device comprising:

[0007] At least two fixing frames, wherein the at least two fixing frames are spaced apart from each other along a first direction;

[0008] A rope, the two ends of which are respectively connected to two adjacent fixing frames;

[0009] The fixing frame includes:

[0010] Two main body plates are connected and set at an included angle, and each of the two main body plates has a mating surface facing each other;

[0011] The connecting portion is provided on the surface of each of the two main body plates opposite to the mating surface;

[0012] Each fastener extends along a second direction at an angle to the first direction; one end of the fastener is connected to the connecting portion, and the other end is bent toward the side face adjacent to the mating surface and extends out of the mating surface.

[0013] In one embodiment, the second direction is perpendicular to the first direction.

[0014] In one embodiment, the mating surfaces of the two main body plates are arranged perpendicularly.

[0015] In one embodiment, the fastener is configured as a hook bolt, which includes a hook stud and a nut. One end of the hook stud with a hook is hooked onto the main body plate, and the other end of the hook stud is threaded to the connecting part. The nut is threaded to the hook stud and can be screwed to abut against the connecting part.

[0016] In one embodiment, one of the connecting parts is provided with a mounting hole, and the end of the rope is fixed in the mounting hole.

[0017] In one embodiment, the fall arrestor further includes a clamp installed in the mounting hole for connecting the rope.

[0018] In one embodiment, the fall arrestor further includes a self-locking device slidably connected to the rope, and an external safety harness device connected to the self-locking device.

[0019] In one embodiment, the main body plate and the connecting portion are constructed as an integral structure.

[0020] Secondly, this application also provides a tower structure, including a tower and a fall arrestor as described in any of the above embodiments. The tower includes an angle iron frame extending along the first direction. The angle iron frame has two mounting surfaces at an angle. The fall arrestor is mounted on the angle iron frame. The mating surface of the main plate is mated to the two mounting surfaces of the angle iron frame. One end of the fastener extending out of the mating surface abuts against the angle iron frame.

[0021] In one embodiment, multiple angle iron frames are provided, and the multiple angle iron frames are spaced apart from each other; the tower also includes a connecting beam, which connects two adjacent angle iron frames; wherein, the fastener is located on the side of the connecting beam away from the rope and abuts against the connecting beam.

[0022] The aforementioned fall arrestor is installed on the angle iron frame via a fixing bracket, with both ends of the rope fixed to two adjacent fixing brackets. When maintenance personnel climb using the safety rope, they can secure their safety belt to the rope's self-locking device. The self-locking device slides upwards on the safety rope following the movement of the body, automatically and quickly locking in case of a fall, securing the personnel to the rope and ensuring their safety. Through structural design, the two main body plates are bonded to the two angled outer surfaces of the angle iron frame. Connecting parts are provided on the surfaces of the main body plates facing away from the bonding surfaces, and fasteners are used to secure the connecting parts, main body plates, and angle iron frame. Under the action of the two angled fasteners, the fixing bracket is firmly installed on the angle iron frame. Because the fasteners hook onto the angle iron frame after bending, installation of the fixing bracket can be achieved without drilling holes in the tower, making installation convenient and reducing the impact on the tower's structural strength. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the tower structure provided in one embodiment of this application;

[0024] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0025] Figure 3 for Figure 1 Enlarged structural diagram at point B;

[0026] Figure 4 This is a three-dimensional structural diagram of the fixing frame provided in one embodiment of this application from one viewpoint.

[0027] Figure 5 This is a three-dimensional structural diagram of the fixing frame provided in one embodiment of this application from another perspective.

[0028] Figure 6 This is a top view of the mounting bracket provided in one embodiment of this application.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Fall arrestor; 11. Fixing frame; 111. Main body plate; 1110. Fitting surface; 112. Connecting part; 1120. Mounting hole; 113. Fastener; 1131. Hook stud; 1132. Nut; 12. Rope; 13. Wire clamp;

[0031] 2. Pole tower; 21. Angle iron frame; 210. Mounting surface; 22. Connecting beam. Detailed Implementation

[0032] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0033] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, 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, and therefore should not be construed as a limitation of this application.

[0034] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0038] See Figure 1 , Figure 1 A schematic diagram of a tower structure provided in one embodiment of this application is shown. This embodiment of the application provides a tower structure, which is installed along a railway line and can be a railway lighthouse or a catenary steel column, or other tall tower structure. Specifically, the tower structure includes a pole 2, which includes structures along a first direction (…). Figure 1 Angle iron frames 21 extending vertically (in the middle) are constructed of angle iron, with the two plates of the angle iron arranged vertically. Multiple angle iron frames 21 are provided, spaced apart from each other, forming the main frame of the tower 2. The tower 2 also includes connecting beams 22, which connect adjacent angle iron frames 21. By connecting multiple angle iron frames 21 together with multiple connecting beams 22, the overall structural strength of the tower 2 is improved.

[0039] In this embodiment, four angle iron frames 21 are provided, arranged in a square. Multiple connecting beams 22 are provided between adjacent angle iron frames 21 from top to bottom. Some of the connecting beams 22 are inclined and arranged in a Z-shape; others are horizontally arranged. Of course, the arrangement of the angle iron frames 21 and connecting beams 22 is not limited to this and can be any other structural form.

[0040] Combination Figure 2 and Figure 3 As shown, Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 for Figure 1Enlarged structural diagram at point B. Based on the aforementioned structure of the tower structure, this application embodiment also provides a fall arrest device 1, which is installed on the tower 2 and can serve as a component of the tower structure. During the climbing of the tower 2 by maintenance personnel, the fall arrest device 1 provides fall protection, thereby improving operational safety.

[0041] Specifically, the fall arrestor 1 includes at least two fixed frames 11 and a rope 12. The at least two fixed frames 11 are spaced apart from each other in the vertical direction, and the two ends of the rope 12 are respectively connected to the two adjacent fixed frames 11. The rope 12 can be made of galvanized steel strand, which has good structural strength and good corrosion resistance.

[0042] When installing the fall arrestor 1, the fixing frame 11 is installed on the angle iron frame 21, and both ends of the rope 12 are fixed to two adjacent fixing frames 11. When maintenance personnel climb the safety rope, they can fix the safety belt to the self-locking device on the rope 12. The self-locking device can slide upward on the safety rope with the movement of the human body. Once the human body falls, it can automatically and quickly lock, fixing the person to the rope 12 and ensuring the personal safety of the maintenance personnel.

[0043] In this embodiment, two fixing frames 11 are provided, one at the bottom and one at the top of the tower 2, respectively. One rope 12 is provided, allowing maintenance personnel to climb to the top of the tower 2 along one rope 12. In other embodiments, if the tower 2 is relatively tall, more than two fixing frames 11 can be provided to ensure the stability of the rope 12. A rope 12 is provided between two adjacent fixing frames 11. When maintenance personnel climb to the top of one rope 12, they can replace and secure their safety harness to a higher rope 12.

[0044] The following is combined with Figures 4-6 The structure of the fixing frame 11 is described in detail. Figure 4 This paper shows a three-dimensional structural diagram of the fixing frame 11 provided in one embodiment of the present application from one perspective; Figure 5 This shows a three-dimensional structural diagram of the fixing frame 11 provided in one embodiment of the present application from another perspective; Figure 6 A top view of the fixture 11 provided in one embodiment of this application is shown.

[0045] In some embodiments, the fixing frame 11 includes two main body plates 111, a connecting portion 112, and fasteners 113. The two main body plates 111 are connected and arranged at an angle, and each of the two main body plates 111 has a mating surface 1110 facing each other. At least one connecting portion 112 is provided on the surface of each of the two main body plates 111 facing away from the mating surface 1110. Each fastener 113 extends along a second direction at an angle to the vertical direction. One end of the fastener 113 is connected to the connecting portion 112, and the other end is bent toward a side face adjacent to the mating surface 1110 and extends out of the mating surface 1110. The second direction is perpendicular to the first direction, and the second direction can be... Figure 4 The fasteners 113 extend in the left-right or front-back direction. That is, some of the fasteners 113 extend in the left-right direction to provide fastening force to the main body plate 111 in the left-right direction; the other part of the fasteners 113 extends in the front-back direction to provide fastening force to the main body plate 111 in the front-back direction.

[0046] The fall arrestor 1 provided in this application embodiment has a structural design for the fixing frame 11. During installation, the mating surfaces 1110 of the two main body plates 111 are mated to the two outer surfaces of the angle iron frame 21 at an angle. By providing a connecting part 112 on the surface of the main body plate 111 away from the mating surface 1110, fasteners 113 are used to secure the connecting part 112, the main body plate 111, and the angle iron frame 21. Under the action of the two fasteners 113 set at an angle, the fixing frame 11 is firmly installed on the angle iron frame 21. Since the fasteners 113 hook onto the angle iron frame 21 after being bent, the fixing frame 11 can be installed without drilling holes in the tower 2, making installation more convenient and helping to reduce the impact on the structural strength of the tower 2.

[0047] Optionally, the main body plate 111 and the connecting part 112 are constructed as a single unit. This configuration ensures a strong connection between the main body plate 111 and the connecting part 112, and also makes processing more convenient.

[0048] Specifically, the angle iron frame 21 has two mounting surfaces 210 at an included angle. When the fall arrestor 1 is installed on the angle iron frame 21, the mating surface 1110 of the main body plate 111 is mated to the two mounting surfaces 210 of the angle iron frame 21, and one end of the fastener 113 extending from the mating surface 1110 abuts against the angle iron frame 21. Generally, the two mounting surfaces 210 of the angle iron frame 21 are perpendicular, and the mating surfaces 1110 of the two main body plates 111 are correspondingly set to be perpendicular, so that the main body plates 111 can be tightly attached to the angle iron frame 21, thereby improving the installation firmness of the fixing frame 11 on the angle iron frame 21. Of course, the two mounting surfaces 210 of the angle iron frame 21 can also be at other angles, and the two mating surfaces 1110 of the main body plates 111 can also be set to corresponding angles.

[0049] To further improve the installation stability of the fixing bracket 11, during installation, the fastener 113 is positioned on the side of the connecting beam 22 away from the rope 12 and abuts against the connecting beam 22. This allows the connecting beam 22 to provide a blocking and limiting effect on the fastener 113, preventing the fixing bracket 11 from sliding up and down along the angle iron frame 21. Specifically, one fastener 113 in the upper fixing bracket 11 is located on the upper side of the connecting beam 22 at the installation position, and one fastener 113 in the lower fixing bracket 11 is located on the lower side of the connecting beam 22 at the installation position.

[0050] In some embodiments, the connecting portion 112 is configured as a plate-like structure that extends vertically. One connecting portion 112 on one main body plate 111 is parallel to and located in the same plane as the other main body plate 111. The two connecting portions 112 are staggered vertically so that the fasteners 113 on the two connecting portions 112 can be staggered for easy installation.

[0051] In some embodiments, the fastener 113 is configured as a hook bolt, which includes a hook stud 1131 and a nut 1132. One end of the hook stud 1131 with a hook is hooked onto the main body plate 111, and the other end of the hook stud 1131 is threaded to the connecting part 112. The nut 1132 is threaded to the hook stud 1131 and can be screwed to abut against the connecting part 112. Optionally, the hook bolt is a φ18mm type.

[0052] In some embodiments, one of the connecting portions 112 is provided with a mounting hole 1120, and the end of the rope 12 is fixed in the mounting hole 1120. Specifically, the mounting hole 1120 is provided near the connecting portion 112 of the rope 12 to avoid interference with the rope 12 by the other connecting portion 112 and the fasteners 113 on the other connecting portion 112.

[0053] To facilitate the connection of the rope 12 to the fixing frame 11, the fall arrestor 1 also includes a clamp 13, which is installed in the mounting hole 1120 for connecting the rope 12. By providing the clamp 13, the rope 12 can be more quickly and easily fixed to the fixing frame 11.

[0054] Optionally, the wire clamp 13 on the top mounting bracket 11 is a wedge-shaped wire clamp, and the wire clamp 13 on the bottom mounting bracket 11 is a UT-type wire clamp.

[0055] In some embodiments, the fall arrestor 1 further includes a self-locking device slidably connected to the rope 12, and an external safety harness device connected to the self-locking device.

[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A fall protection device, characterized in that, The fall protection device includes: At least two fixing frames (11) are provided at intervals from each other along a first direction; A rope (12), the two ends of which are respectively connected to two adjacent fixing frames (11); The fixing frame (11) includes: Two main body plates (111) are connected and set at an angle to each other, and each of the two main body plates (111) has a mating surface (1110) facing each other. The connecting part (112) is provided on the surface of each of the two main body plates (111) facing away from the mating surface (1110). Fasteners (113), each of the fasteners (113) extends along a second direction at an angle to the first direction; one end of the fastener (113) is connected to the connecting part (112), and the other end is bent toward the side face adjacent to the mating surface (1110) and extends out of the mating surface (1110).

2. The fall arrestor according to claim 1, characterized in that, The second direction is perpendicular to the first direction.

3. The fall arrestor according to claim 1, characterized in that, The mating surfaces (1110) of the two main body plates (111) are arranged perpendicularly to each other.

4. The fall arrestor according to claim 1, characterized in that, The fastener (113) is configured as a hook bolt, which includes a hook stud (1131) and a nut (1132). One end of the hook stud (1131) with a hook is hooked to the main body plate (111), and the other end of the hook stud (1131) is threaded to the connecting part (112). The nut (1132) is threaded to the hook stud (1131) and can be screwed to abut against the connecting part (112).

5. The fall arrestor according to claim 1, characterized in that, One of the connecting parts (112) is provided with a mounting hole (1120), and the end of the rope (12) is fixed in the mounting hole (1120).

6. The fall arrestor according to claim 5, characterized in that, The fall arrestor also includes a clamp (13), which is installed in the mounting hole (1120) and is used to connect the rope (12).

7. The fall arrestor according to any one of claims 1 to 5, characterized in that, The fall arrestor also includes a self-locking device, which is slidably connected to the rope (12), and an external safety belt device is connected to the self-locking device.

8. The fall arrestor according to any one of claims 1 to 5, characterized in that, The main body plate (111) and the connecting part (112) are constructed as an integral structure.

9. A type of iron tower structure, characterized in that, The device includes a pole (2) and a fall arrestor (1) as described in any one of claims 1 to 8. The pole (2) includes an angle iron frame (21) extending along the first direction. The angle iron frame (21) has two mounting surfaces (210) at an angle. The fall arrestor (1) is mounted on the angle iron frame (21). The mating surface (1110) of the main plate (111) is mated to the two mounting surfaces (210) of the angle iron frame (21). One end of the fastener (113) extending out of the mating surface (1110) abuts against the angle iron frame (21).

10. The iron tower structure according to claim 9, characterized in that, Multiple angle iron frames (21) are provided, and the multiple angle iron frames (21) are spaced apart from each other; the tower (2) also includes a connecting beam (22), which connects two adjacent angle iron frames (21); wherein, the fastener (113) is located on the side of the connecting beam (22) away from the rope (12) and abuts against the connecting beam (22).

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