Angle steel tower climbing anti-falling automatic closing protection device

Abstract

The application relates to a kind of angle steel tower climbing anti-falling automatic closing protection devices, including body, opening is set on the side of body, the rotating shaft with torsional spring is arranged in the lower end of opening, the baffle is fixedly installed on the rotating shaft, and the upper end of baffle is shielded in the upper end of opening;Plug hole and upper installation groove are arranged in the body of opposite side and communicated, the lifting rod that can move up and down is inserted in plug hole, the upper end of lifting rod is located above the body and is installed with hanger, the lower end of lifting rod is located in upper installation groove, the first pulley is arranged in the upper installation groove of the lower side of lifting rod, and the connecting line that passes through first pulley is connected between the lower end of lifting rod and the upper end of baffle;Lower installation groove is set in the lower side of upper installation groove, and the second pulley is arranged in lower installation groove.The application is stably connected with tower pole, and the safety rope does not need to be adjusted again in the process of climbing, and the hands of tower climbing personnel can only focus on tower climbing, effectively reduce physical consumption and maintenance operation safety risk.

Description

Technical Field

[0001] This application relates to a height protection device, and more particularly to an automatic closing protection device for preventing falls from angle steel towers. Background Technology

[0002] With the further strengthening of the 750 kV regional grid interconnection and the main power grid structure within a certain province, a strong driving force is provided for the transformation of energy advantages into economic advantages. As the number of operation and maintenance towers for ultra-high voltage transmission lines increases year by year, the workload of maintenance personnel climbing towers will increase day by day.

[0003] In the maintenance of power lines, climbing towers is indispensable. However, the commonly used tower climbing tools, such as fall arrest rails, double hook fall arresters, eagle beak fall arresters, and soft self-climbing fall arresters, all carry the risk of not being able to reach or get into the tower materials with each step. This results in very low work efficiency and long working hours, causing high-altitude maintenance personnel to be severely exhausted before even reaching the top of the tower, which is not conducive to carrying out high-altitude maintenance work.

[0004] Therefore, there is a need for a protective device that can automatically close to reduce operational stress. Summary of the Invention

[0005] In view of the above-mentioned defects, the purpose of this application is to propose an automatic closing protection device for preventing falls from angle steel towers that can be automatically closed after being attached to the tower pole, thereby forming a protective structure.

[0006] The purpose of this application is achieved as follows: An automatic closing protection device for fall prevention when climbing an angle steel tower includes a main body with a square frame structure. An opening is provided on the side of the main body, and a rotating shaft is provided at the lower end of the opening. A torsion spring is provided at the rotating shaft to drive its rotation. A baffle that rotates with the rotating shaft is fixedly installed on the rotating shaft, and the upper end of the baffle covers the upper end of the opening. On the opposite side of the opening, the main body has vertically arranged and connected insertion holes and an upper mounting slot. A vertically movable lifting rod is inserted into the insertion hole. The upper end of the lifting rod is located above the main body and is equipped with a bracket. The lower end of the lifting rod is located in the upper mounting slot. A first pulley is provided in the upper mounting slot below the lifting rod. A connecting line passing through the first pulley connects the lower end of the lifting rod to the upper end of the baffle. A lower mounting slot is provided on the main body below the upper mounting slot, and a second pulley for connecting a safety rope is installed in the lower mounting slot.

[0007] The main body includes a top plate on the upper side, a bottom plate on the lower side, and a side plate on the right side. The hook extending downwards is integrally fixed and connected to the left end of the top plate. The lower end of the hook to the left end of the bottom plate forms an opening. The area between the hook, the top plate, and the side plate forms the area for hanging the tower rod.

[0008] A groove is provided on the upper end face of the base plate, and the right side of the groove is connected to the upper mounting groove.

[0009] The two ends of the rotating shaft extend out of the base plate 7, and the protruding parts at both ends are connected to the two ends of the opening of a U-shaped limiting ring.

[0010] The hanger includes a crossbeam fixedly connected to the top of the lifting rod, and rectangular frames symmetrically connected to both sides of the crossbeam.

[0011] Because of the aforementioned technical solution, this application is applicable to 220 kV and above transmission lines. By changing the tower climbing method, a drone is used to suspend the entire application at the crossbar of the tower. The drone moves laterally so that the crossbar enters the application through the opening. After the drone flies away, the locking plate snaps shut in the opposite direction, fixing the application to the tower. The climber connects the upper end of the safety rope to the application and the lower end to the safety buckle on the back of the safety belt, thus climbing the tower. No further adjustments to the safety rope are needed during the climb, allowing the climber to focus solely on climbing, effectively reducing physical exertion and safety risks during maintenance operations. Attached Figure Description

[0012] The specific structure of this application is given by the following figures and embodiments: Figure 1 This is a schematic diagram of the structure of this application.

[0013] Legend: 1. Body; 2. Hook; 3. Opening; 4. Baffle; 5. Torsion spring; 6. Rotating shaft; 7. Base plate; 8. Groove; 9. Limiting ring; 10. Safety rope; 11. Second pulley; 12. Lower mounting groove; 13. First pulley; 14. Connecting line; 15. Upper mounting groove; 16. Lifting rod; 17. Hanger; 18. Tower. Detailed Implementation

[0014] 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.

[0015] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "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 the present invention 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. Therefore, they should not be construed as limitations on this application.

[0016] Example: Figure 1As shown, the automatic closing protection device for fall prevention on angle steel towers includes a main body 1 with a square frame structure. An opening 3 is provided on the side of the main body 1. A rotating shaft 6 is located at the lower end of the opening 3. A torsion spring 5 is installed at the rotating shaft 6 to drive its rotation. A baffle 4, which rotates with the rotating shaft 6, is fixedly installed on the rotating shaft 6, with its upper end covering the upper end of the opening 3. On the opposite side of the opening 3, the main body 1 has vertically arranged and interconnected insertion holes and an upper mounting groove 15. A device for upward mounting is inserted into the insertion holes. The lifting rod 16 moves downward. The upper end of the lifting rod 16 is located above the main body 1 and is equipped with a bracket 17. The lower end of the lifting rod 16 is located in the upper mounting groove 15. A first pulley 13 is provided in the upper mounting groove 15 on the lower side of the lifting rod 16. A connecting line 14 passing through the first pulley 13 connects the lower end of the lifting rod 16 and the upper end of the baffle 4. A lower mounting groove 12 is provided on the main body 1 on the lower side of the upper mounting groove 15. A second pulley 11 for connecting the safety rope is installed in the lower mounting groove 12.

[0017] Furthermore, the main body 1 includes an upper top plate, a lower bottom plate 7, a right side plate, and a downward-extending hook 2 that is integrally fixed to the left end of the top plate. The lower end of the hook 2 to the left end of the bottom plate 7 forms the opening 3. The area between the hook 2, the top plate, and the side plate is the area for hanging the tower rod 18.

[0018] A groove for mounting the rotating shaft 6 is provided in the left end of the base plate 7. The rotating shaft 6 is rotatably mounted in the groove. The connection structure between the torsion spring 5 and the rotating shaft 6 is existing technology and is not the point of invention of this application, so it will not be described in detail here.

[0019] A groove 8 is provided on the upper surface of the base plate 7, and the right side of the groove 8 is connected to the upper mounting groove 15. The groove 8 is provided in two ways: first, it reduces the overall weight, making it easier to hang the drone; second, it provides a rotation space for the lower part of the baffle 4, so that the baffle 4 will not be blocked by the base plate when rotating towards the side plate.

[0020] The lower mounting groove 12 is located on the side plate below the base plate 7. The base plate 7 separates the upper mounting groove 15 and the lower mounting groove 12, so that a reinforcing rib is formed between the upper mounting groove 15 and the lower mounting groove 12 by the base plate 7, thereby enhancing the tensile strength of the side plate.

[0021] The two ends of the rotating shaft 6 extend out of the base plate 7, and the protruding parts at both ends are connected to the two open ends of a U-shaped limiting ring 9. The limiting ring 9 is used to control the upper swing amplitude of the safety rope.

[0022] The hanging bracket 17 includes a crossbeam fixedly connected to the top of the lifting rod 16, and rectangular frames are symmetrically connected to both sides of the crossbeam.

[0023] A limiting protrusion is provided at the lower end of the lifting rod 16 to prevent the lifting rod 16 from dislodging from the insertion hole.

[0024] The stroke of the lifting rod 16 depends on the rotational stroke of the upper end of the baffle 4. Therefore, when the upper end of the baffle 4 contacts the hook head 2, the length of the lifting rod 16 in the upper mounting groove 15 is greater than the rotational stroke of the upper end of the baffle 4. This structure, along with the limiting protrusion, provides double protection to prevent the lifting rod 16 from disengaging from the insertion hole.

[0025] The maximum inward rotation of the baffle 4 is determined by the contact between the baffle 4 and the first pulley 13.

[0026] In use, the safety rope 10 is tied to the second pulley 11 on the ground and passes through the limiting ring 9 to connect with the waist attachment point of the person climbing the tower. By adding a hook to the drone (for example, fixing a connecting line to the bottom of the drone and setting a hook at the bottom of the connecting line), after the hook is connected to the hanger 17, the drone is controlled to approach the target tower 18. During this process, the hanger 17 pulls the lifting rod 16 upward, thereby driving the connecting line 14 to pull the baffle 4 to flip inward, opening the opening 3. After the drone flies to the point where the opening 3 is horizontally aligned with the tower 18, it flies sideways, allowing the tower 18 to enter the body 1 through the opening 3. Then, it slowly decreases in height, allowing the tower 18 to enter the area between the hook head 2 and the top plate, until the tower 18 touches the top plate. At this time, the hook on the drone gradually loses its tension on the hanger 17 and begins to gradually detach from the hanger 17. After the drone hook is completely detached from the hanger 17, the baffle 4 gradually moves in the opposite direction with the rotating shaft 6 under the action of the torsion spring, until it covers the opening 3, thus forming an automatic closing protection.

[0027] The above description is merely an example for clearly illustrating this application and is not intended to limit the implementation of this application. Any obvious variations or modifications derived from the technical solutions of this application are still within the protection scope of this application.

Claims

1. An automatic closing protection device for preventing falls from angle steel towers, comprising a main body with a square frame structure, wherein an opening is provided on one side of the main body, characterized in that: A pivot is provided at the lower end of the opening, and a torsion spring is provided at the pivot to drive the pivot to rotate. A baffle that can rotate with the pivot is fixedly installed on the pivot, and the upper end of the baffle covers the upper end of the opening. On the main body on the opposite side of the opening, there are vertically arranged and connected insertion holes and upper mounting slots. A lifting rod that can move up and down is inserted into the insertion holes. The upper end of the lifting rod is located above the main body and is equipped with a bracket. The lower end of the lifting rod is located in the upper mounting slot. A first pulley is provided in the upper mounting slot on the lower side of the lifting rod. A connecting line passing through the first pulley connects the lower end of the lifting rod and the upper end of the baffle. A lower mounting slot is provided on the main body on the lower side of the upper mounting slot. A second pulley for connecting a safety rope is installed in the lower mounting slot.

2. The automatic closing protection device for preventing falls from angle steel towers as described in claim 1, characterized in that: The main body includes a top plate on the upper side, a bottom plate on the lower side, and a side plate on the right side. The hook extending downwards is integrally fixed and connected to the left end of the top plate. The lower end of the hook to the left end of the bottom plate forms an opening. The area between the hook, the top plate, and the side plate forms the area for hanging the tower rod.

3. The automatic closing protection device for preventing falls from angle steel towers as described in claim 2, characterized in that: A groove is provided on the upper end face of the base plate, and the right side of the groove is connected to the upper mounting groove.

4. The automatic closing protection device for preventing falls from angle steel towers as described in claim 1, 2, or 3, characterized in that: The two ends of the rotating shaft extend out of the base plate (7), and the extended parts at both ends are connected to the two ends of the opening of a U-shaped limiting ring.

5. The automatic closing protection device for preventing falls from angle steel towers as described in claim 1, 2, or 3, characterized in that: The hanger includes a crossbeam fixedly connected to the top of the lifting rod, and rectangular frames symmetrically connected to both sides of the crossbeam.

6. The automatic closing protection device for preventing falls from angle steel towers as described in claim 4, characterized in that: The hanger includes a crossbeam fixedly connected to the top of the lifting rod, and rectangular frames symmetrically connected to both sides of the crossbeam.

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