Circulating telescopic detachable protection device for periphery protection of ultrahigh tower and mounting method
By designing a cyclically retractable and detachable protective device for the outer protection of ultra-high towers, the problems of difficult installation and insufficient safety of protective nets during the construction of ultra-high offshore power towers have been solved. Convenient installation and safe disassembly have been achieved, adapting to changes in tower height and reducing the risk of high-altitude adjustments.
Patent Information
- Application Number
- CN202510903199.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-01
- Publication Date
- 2025-09-26
AI Technical Summary
During the construction of ultra-high offshore power towers, the protective net is difficult to install, has large deformations and poor safety, and cannot meet the construction safety requirements, especially the high risk of high-altitude adjustments.
A cyclically retractable and detachable protective device for the outer protection of a super-high tower is designed, which includes lower and upper steel beams, U-shaped plates, vertical rods, limit mechanisms and transmission mechanisms. The size and position of the protective net are adjusted through bolt connections and steel wire ropes to achieve detachable installation.
The protective net can be easily installed and safely disassembled, adapting to changes in tower height, reducing the risk of high-altitude adjustments, and improving construction safety.
Smart Images

Figure CN120701154A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of building safety protection, and in particular to a cyclically retractable and detachable protective device for the outer protection of an ultra-high tower and an installation method thereof. Background Art
[0002] With the acceleration of urban construction and economic development, electricity demand is increasing, and the renovation and construction of ultra-high offshore power towers is also increasing. Protecting the safety of construction workers during the construction of ultra-high towers is crucial. Due to the limited construction area at sea level, it is impossible to demarcate a completely unoccupied construction area during construction. As a result, accidents such as falling people and objects from heights threaten the lives of construction workers and hinder the smooth progress of power construction projects. Currently, installing multiple safety nets is an important way to prevent these accidents, but implementation still faces the following urgent challenges.
[0003] During offshore construction, due to the geographical location, the installation of the protective net lacks installation points, the installation conditions are difficult, and the safety net is heavy and deforms greatly after installation, resulting in poor protection effect. Therefore, there is currently a lack of mature and effective protection solutions that can meet the safety protection needs of ultra-high offshore power towers.
[0004] During the tower assembly and construction, the shape and hanging points of the protective net need to be changed accordingly because the tower cross-section changes with the height of the tower. The fixed-size protective net solution can no longer meet the construction needs. In addition, when the protective net moves down and up, the outer hanging points are at high altitudes. If they are adjusted manually, the risk is extremely high. In serious cases, it may cause casualties and threaten life safety. Therefore, designing a reasonable and effective safety net solution that can be adaptively adjusted is an important prerequisite for ensuring construction safety. Summary of the Invention
[0005] In response to the shortcomings of the existing technology, the present invention provides a super-high tower outer protection cyclically retractable detachable protective device and installation method, which has the advantages of being able to be pre-assembled on the inside of the building and being able to move the protective device to the inside of the building for disassembly, which not only saves time and effort but is also safer, and solves the problems raised at the end of the background.
[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a super-high tower outer protection cyclically retractable and detachable protective device, comprising a lower steel beam and an upper steel beam, the upper steel beam being arranged above the lower steel beam, the upper steel beam being arranged on a side close to the lower steel beam, and a U-shaped plate being fastened to the lower steel beam by bolt threads, the two U-shaped plates being rotatably provided with a vertical rod on the side close to each other, and a limiting mechanism being provided on one side of the U-shaped plate to limit the rotation of the corresponding vertical rod, the side walls of the two vertical rods being fixedly provided with a first connecting block, a first rotating rod being rotatably provided between the first connecting blocks on both sides, a rotating ring being fixedly sleeved on the rod wall of the first rotating rod on the lower side, a first fixed tube being fixedly provided on one side of the middle rotating ring, a first movable rod being slidably provided inside the first fixed tube, and a fixed The cam is fixedly provided with a second fixed tube, and the second movable rod is movably sleeved inside the second fixed tube, and a transmission mechanism that drives the second movable rod to move is provided inside the second fixed tube, and a connecting plate is provided on one side of the first rotating rod, and one end of the first movable rod and the second movable rod are fixedly connected to the connecting plate, and the upper ends of the connecting plate are fixedly provided with a second connecting block, and the second rotating rod is rotatably provided between the two second connecting blocks, and multiple steel wire ropes are provided between the first rotating rod and the second rotating rod, and the two ends of the multiple steel wire ropes are respectively fixedly connected to the corresponding first rotating rod and the second rotating rod, and hooks are fixedly provided on both sides of the first fixed tube and the first movable rod and one side of the second fixed tube and the second movable rod, and protective nets are provided on both sides of the first fixed tube, and multiple hooks are hung with corresponding protective net limiters.
[0007] Preferably, the limiting mechanism includes a first spur gear and a second spur gear, the first spur gear is fixedly sleeved on the rod wall of the corresponding vertical rod, the second spur gear is meshed with one side of the first gear, the side wall of the U-shaped plate and the position corresponding to the second spur gear are fixedly provided with a fixed shell, a slider is slidably provided inside the fixed shell, the upper side of the slider is fixedly provided with a connecting rod, the upper end of the connecting rod extends to the outside of the fixed shell and is fixedly connected to the second spur gear. Both ends of the slider are provided with a cavity, the interior of the cavity is slidably provided with a stopper, one side of the stopper is fixedly provided with a clamping block, one end of the clamping block extends to the outside of the cavity, and both sides of the upper end of the fixed shell are provided with a slot, the outer ends of the two clamping blocks are clamped with the corresponding slots, and a spring is fixedly provided on the side of the stopper away from the clamping block, and the other end of the spring is fixedly connected to the inner wall of the cavity.
[0008] Preferably, the transmission mechanism includes a first bevel gear and a second bevel gear, a screw is rotatably provided on the inner wall of one end of the second fixed tube, one end of the second movable rod is threadedly sleeved on the screw, a transmission rod is rotatably provided inside one end of the second fixed tube, the first bevel gear is fixedly sleeved on one end of the transmission rod close to the screw, the second bevel gear is fixedly sleeved on one end of the screw close to the transmission rod, and the first bevel gear is meshed with the second bevel gear.
[0009] Preferably, both inner walls of the second fixed tube are provided with sliding grooves, and a limiting block is provided for sliding inside the sliding groove, and one side of the limiting block is fixedly connected to the side wall of the second movable rod.
[0010] Preferably, one end of the transmission rod extends to the outside of the second fixed tube and is fixedly sleeved with a rotating wheel.
[0011] Preferably, the cross sections of the slider and the fixed shell are both rectangular.
[0012] Preferably, the surfaces of the steel wire rope and the protective net are coated with an anti-corrosion coating.
[0013] Preferably, the longitudinal sections of the block and the cavity are both rectangular.
[0014] Preferably, the protective net is a high-strength polyester fiber net.
[0015] A method for installing a cyclically retractable and detachable protective device for the outer periphery of a super-high tower, comprising the following specific steps: Step 1: Adjust the distance between the connecting plate and the first rotating rod on the lower side, and rotate the transmission rods on both sides at the same time, so that the second bevel gear drives the corresponding first bevel gear to rotate, and then the screw rod rotates, and the screw rod drives the second movable rod to move relative to the second fixed tube, which can drive the connecting plate to move relative to the first rotating rod on the lower side, so that the position of the connecting plate can be adjusted according to the size of the protective net. After adjustment, the protective net is hung with multiple hook limiters; Step 2: Install one side of the U-shaped plate, clamp the U-shaped plate on the corresponding upper steel beam and lower steel beam, and then use bolts to lock the U-shaped plate and the corresponding upper steel beam and lower steel beam in place; Step 3: Move the protective device to the perimeter of the building. First, fix the two ends of the steel wire rope on one side to the corresponding first and second rotating rods, push the multiple blocks into the corresponding cavities, and release the limit on the slider. Then, slide the slider so that the slider drives the connecting rod to move, so that the second spur gear moves and separates from the first spur gear, thus releasing the limit on the vertical rod, and the protective device can be rotated to the perimeter of the building. Step 4. Install the U-shaped plate and steel wire rope on the other side, clamp the U-shaped plate on the corresponding upper steel beam and lower steel beam, and then use bolts to lock the U-shaped plate on the other side and the corresponding upper steel beam and lower steel beam. Then fix the two ends of the remaining steel wire rope to the corresponding first rotating rod and second rotating rod to complete the installation of the protective device.
[0016] The embodiments of the present invention have the following beneficial effects: Compared with the prior art, the present invention provides a cyclically retractable and detachable protective device for the outer periphery of an ultra-high tower and an installation method thereof, which has the following beneficial effects: 1. The cyclically retractable and detachable protective device and installation method for the outer protection of a super-high tower, by simultaneously rotating the transmission rods on both sides, that is, the second bevel gear drives the corresponding first bevel gear to rotate, and then the screw rod rotates, and the screw rod drives the second movable rod to move relative to the second fixed tube, that is, it can drive the connecting plate to move relative to the first rotating rod on the lower side, that is, the position of the connecting plate can be adjusted according to the size of the protective net. After adjustment, the protective net is hung with multiple hook limiters, which makes it convenient to install the protective net in the building.
[0017] 2. The cyclically retractable and detachable protective device and installation method for the outer protection of a super-high tower, by simultaneously rotating the transmission rods on both sides, that is, the second bevel gear drives the corresponding first bevel gear to rotate, and then the screw rod rotates, and the screw rod drives the second movable rod to move relative to the second fixed tube, that is, it can drive the connecting plate to move relative to the first rotating rod on the lower side, that is, the position of the connecting plate can be adjusted according to the size of the protective net. After adjustment, the protective net is hung with multiple hook limits, that is, it is convenient to move the protective device out of the building after assembly, which is safer and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0019] in: Figure 1 This is a structural diagram of a cyclically retractable and detachable protective device for the outer protection of a super-high tower and its installation method proposed by the present invention; Figure 2 for Figure 1 Schematic diagram of the top view of the middle and lower steel beams and the parts installed on the lower steel beams; Figure 3 for Figure 2 Schematic diagram of the internal structure; Figure 4 for Figure 1 A magnified view of the structure of part A; Figure 5 for Figure 3 A magnified view of the structure of part B; Figure 6 for Figure 3 A magnified view of the structure of part C.
[0020] In the figure: 1 lower steel beam, 2 upper steel beam, 3 U-shaped plate, 4 vertical rod, 5 first connecting block, 6 first rotating rod, 7 steel wire rope, 8 second fixed pipe, 9 second movable rod, 10 connecting plate, 11 second connecting block, 12 second rotating rod, 13 first fixed pipe, 14 first movable rod, 15 first bevel gear, 16 second bevel gear, 17 protective net, 18 hook, 19 screw rod, 20 fixed shell, 21 slider, 22 connecting rod, 23 block, 24 clamping block, 25 spring, 26 limit block, 27 transmission rod, 28 first spur gear, 29 second spur gear, 30 rotating ring. DETAILED DESCRIPTION
[0021] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.
[0022] See also Figure 1-6, a super high tower outer protection cyclic telescopic detachable protective device, comprising a lower steel beam 1 and an upper steel beam, the upper steel beam is arranged above the lower steel beam 1, and the upper steel beam is arranged on the side close to the lower steel beam 1, and is connected with a U-shaped plate 3 by bolt thread locking, the two U-shaped plates 3 are rotatably provided with a vertical rod 4 on the side close to each other, the side walls of the two vertical rods 4 are fixedly provided with a first connecting block 5, and a first rotating rod 6 is rotatably provided between the first connecting blocks 5 on both sides, and the rod wall of the lower first rotating rod 6 is fixedly sleeved with a rotating ring 30, a first fixed tube 13 is fixedly provided on one side of the middle rotating ring 30, and a first movable rod is slidably provided inside the first fixed tube 13, a second fixed tube 8 is fixedly provided on one side of the rotating rings 30 on both sides, and a second movable rod 9 is movably sleeved inside the second fixed tube 8, a connecting plate 10 is provided on one side of the first rotating rod 6, and the first movable rod One end of the second movable rod 9 is fixedly connected to the connecting plate 10, and both ends of the upper side of the connecting plate 10 are fixedly provided with a second connecting block 11, and a second rotating rod 12 is rotatably provided between the two second connecting blocks 11. A plurality of steel wire ropes 7 are provided between the first rotating rod 6 and the second rotating rod 12, and the two ends of the plurality of steel wire ropes 7 are fixedly connected to the corresponding first rotating rod 6 and the second rotating rod 12 respectively. The surfaces of the steel wire ropes 7 and the protective net 17 are coated with an anti-corrosion coating to improve the anti-corrosion performance of the steel wire ropes 7 and the protective net 17. Hooks 18 are fixedly provided on both sides of the first fixed tube 13 and the first movable rod and on one side of the second fixed tube 8 and the second movable rod 9. Protective nets 17 are provided on both sides of the first fixed tube 13. The protective net 17 is a high-strength polyester fiber net to improve the performance and service life of the safety protection net. Multiple hooks 18 are limitedly hung with the corresponding protective nets 17.
[0023] See also Figure 1-6A limiting mechanism for limiting the rotation of the corresponding vertical rod 4 is provided on one side of the U-shaped plate 3. The limiting mechanism includes a first spur gear 28 and a second spur gear 29. The first spur gear 28 is fixedly sleeved on the rod wall of the corresponding vertical rod 4. The second spur gear 29 is meshed and arranged on one side of the first gear. A fixed shell 20 is fixedly provided on the side wall of the U-shaped plate 3 and at a position corresponding to the second spur gear 29. A slider 21 is slidingly provided inside the fixed shell 20. A connecting rod 22 is fixedly provided on the upper side of the slider 21. The upper end of the connecting rod 22 extends to the outside of the fixed shell 20 and is fixedly connected to the second spur gear 29. Both ends of the slider 21 are provided with Cavity, the interior of the cavity is provided with a stopper 23 for sliding, a card block 24 is fixedly provided on one side of the stopper 23, one end of the card block 24 extends to the outside of the cavity, and card slots are provided on both sides of the upper end of the fixed shell 20, and the outer ends of the two card blocks 24 are engaged with the corresponding card slots, and a spring 25 is fixedly provided on the side of the stopper 23 away from the card block 24, and the other end of the spring 25 is fixedly connected to the inner wall of the cavity. The cross-sections of the slider 21 and the fixed shell 20 are both rectangular, so that the slider 21 cannot rotate, that is, it can slide stably, and the longitudinal sections of the stopper 23 and the cavity are both rectangular, so that the stopper 23 cannot rotate, that is, it can slide stably.
[0024] See also Figure 1-6 The first bevel gear 15 is fixedly sleeved on one end of the transmission rod 27 close to the screw rod 19, and the second bevel gear 16 is fixedly sleeved on one end of the screw rod 19 close to the transmission rod 27. The first bevel gear 15 is meshed with the second bevel gear 16. One end of the transmission rod 27 extends to the outside of the second fixed tube 8 and is fixedly sleeved with a runner to facilitate the rotation of the transmission rod 27. The inner walls of both sides of the second fixed tube 8 are provided with slide grooves, and a limit block 26 is provided for sliding inside the slide groove. One side of the limit block 26 is fixedly connected to the side wall of the second movable rod 9, so that the second movable rod 14 cannot rotate relative to the second fixed tube 8, that is, it can slide stably.
[0025] See also Figure 1-6 A method for installing a cyclically retractable and detachable protective device for the outer periphery of a super-high tower, comprising the following specific steps: Step 1: Adjust the distance between the connecting plate 10 and the lower first rotating rod 6, and rotate the transmission rods 27 on both sides at the same time, so that the second bevel gear 16 drives the corresponding first bevel gear 15 to rotate, and then the screw rod 19 rotates, and the screw rod 19 drives the second movable rod 9 to move relative to the second fixed tube 8, that is, it can drive the connecting plate 10 to move relative to the lower first rotating rod 6, that is, the position of the connecting plate 10 can be adjusted according to the size of the protective net 17. After adjustment, the protective net 17 is limitedly hung with multiple hooks 18; Step 2: Install one side of the U-shaped plate 3, clamp the one side of the U-shaped plate 3 on the corresponding upper steel beam and lower steel beam 1, and then use bolts to lock the U-shaped plate 3 with the corresponding upper steel beam 2 and lower steel beam 1; Step 3: Move the protective device to the perimeter of the building. First, fix the two ends of the steel wire rope 7 on one side to the corresponding first rotating rod 6 and second rotating rod 12, push the multiple clamping blocks 24 into the corresponding cavities, and then slide the slider 21 so that the slider 21 drives the connecting rod 22 to move, so that the second spur gear 29 moves and separates from the first spur gear 28, thus releasing the limit on the vertical rod 4, and the protective device can be rotated to the perimeter of the building. Step 4. Install the U-shaped plate 3 and wire rope 7 on the other side, clamp the U-shaped plate 3 on the corresponding upper steel beam and lower steel beam 1, and then use bolts to lock the U-shaped plate 3 on the other side and the corresponding upper steel beam 2 and lower steel beam 1. Then fix the two ends of the remaining wire rope 7 to the corresponding first turning rod 6 and second turning rod 12 to complete the installation of the protective device.
[0026] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of 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, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.
[0027] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on the specific circumstances.
[0028] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," or "above" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," or "below" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0029] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.
[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.
Claims
1. A cyclically retractable and detachable protective device for the outer protection of a super-high tower, comprising a lower steel beam (1) and an upper steel beam, characterized in that: The upper steel beam is arranged above the lower steel beam (1), and the upper steel beam is arranged on a side close to the lower steel beam (1) and is connected to a U-shaped plate (3) by bolt thread locking. The two U-shaped plates (3) are rotatably provided with a vertical rod (4) on the side close to each other, and a limiting mechanism for limiting the rotation of the corresponding vertical rod (4) is provided on one side of the U-shaped plate (3). The side walls of the two vertical rods (4) are fixedly provided with a first connecting block (5), and a first rotating rod (6) is rotatably provided between the first connecting blocks (5) on both sides. The rod wall of the first rotating rod (6) on the lower side is fixedly sleeved with a rotating ring (30), and a first fixed tube (13) is fixedly provided on one side of the middle rotating ring (30), and a first movable rod is slidably provided inside the first fixed tube (13), and a second fixed tube (8) is fixedly provided on one side of the rotating ring (30) on both sides, and a second movable rod (9) is movably sleeved inside the second fixed tube (8). A transmission mechanism for driving the second movable rod (9) to move is provided inside the tube (8), a connecting plate (10) is provided on one side of the first rotating rod (6), one end of the first movable rod and the second movable rod (9) are fixedly connected to the connecting plate (10), and second connecting blocks (11) are fixedly provided at both ends of the upper side of the connecting plate (10), and a second rotating rod (12) is rotatably provided between the two second connecting blocks (11), a plurality of steel wire ropes (7) are provided between the first rotating rod (6) and the second rotating rod (12), and the two ends of the plurality of steel wire ropes (7) are respectively fixedly connected to the corresponding first rotating rod (6) and the second rotating rod (12), and hooks (18) are fixedly provided on both sides of the first fixed tube (13) and the first movable rod and on one side of the second fixed tube (8) and the second movable rod (9), and a protective net (17) is provided on both sides of the first fixed tube (13), and the plurality of hooks (18) are limitedly hung with the corresponding protective net (17).
2. The cyclically retractable and detachable protective device for the outer periphery of a super-high tower according to claim 1 is characterized in that: The limiting mechanism comprises a first spur gear (28) and a second spur gear (29), wherein the first spur gear (28) is fixedly sleeved on the rod wall of the corresponding vertical rod (4), and the second spur gear (29) is meshed and arranged on one side of the first gear. A fixed shell (20) is fixedly arranged on the side wall of the U-shaped plate (3) and at a position corresponding to the second spur gear (29), and a slider (21) is slidably arranged inside the fixed shell (20), and a connecting rod (22) is fixedly arranged on the upper side of the slider (21), and the upper end of the connecting rod (22) extends to the outside of the fixed shell (20). The slider (21) is fixedly connected to the second spur gear (29). Both ends of the slider (21) are provided with cavities. A stopper (23) is slidably provided inside the cavity. A clamping block (24) is fixedly provided on one side of the stopper (23). One end of the clamping block (24) extends to the outside of the cavity. Both sides of the upper end of the fixed shell (20) are provided with clamping grooves. The outer ends of the two clamping blocks (24) are clamped with the corresponding clamping grooves. A spring (25) is fixedly provided on the side of the stopper (23) away from the clamping block (24). The other end of the spring (25) is fixedly connected to the inner wall of the cavity.
3. The cyclically retractable and detachable protective device for the outer periphery of a super-high tower according to claim 1 is characterized in that: The transmission mechanism comprises a first bevel gear (15) and a second bevel gear (16); a screw rod (19) is rotatably provided on the inner wall of one end of the second fixed tube (8); one end of the second movable rod (9) is threadedly sleeved with the screw rod (19); a transmission rod (27) is rotatably provided inside one end of the second fixed tube (8); the first bevel gear (15) is fixedly sleeved on one end of the transmission rod (27) close to the screw rod (19); the second bevel gear (16) is fixedly sleeved on one end of the screw rod (19) close to the transmission rod (27); and the first bevel gear (15) is meshedly connected with the second bevel gear (16).
4. The cyclically retractable and detachable protective device for the outer periphery of a super-high tower according to claim 3 is characterized in that: Slide grooves are provided on both inner walls of the second fixed tube (8), and a limit block (26) is provided inside the slide groove for sliding. One side of the limit block (26) is fixedly connected to the side wall of the second movable rod (9).
5. The cyclically retractable and detachable protective device for the outer periphery of a super-high tower according to claim 3 is characterized in that: One end of the transmission rod (27) extends to the outside of the second fixed tube (8) and is fixedly sleeved with a rotating wheel.
6. The cyclically retractable and detachable protective device for the outer periphery of a super-high tower according to claim 2, characterized in that: The cross sections of the slider (21) and the fixed shell (20) are both rectangular.
7. The cyclically retractable and detachable protective device for the outer periphery of a super-high tower according to claim 1 is characterized in that: The surfaces of the steel wire rope (7) and the protective net (17) are both coated with an anti-corrosion coating.
8. The cyclically retractable and detachable protective device for the outer periphery of a super-high tower according to claim 2 is characterized in that: The longitudinal sections of the stopper (23) and the cavity are both rectangular.
9. The cyclically retractable and detachable protective device for the outer periphery of a super-high tower according to claim 1 is characterized in that: The protective net (17) is a high-strength polyester fiber net.
10. A method for installing a cyclically retractable and detachable protective device for the outer periphery of a super-high tower according to claim 1, comprising the cyclically retractable and detachable protective device for the outer periphery of a super-high tower according to any one of claims 1 to 9, wherein the method comprises the following specific steps: Step 1: Adjust the distance between the connecting plate (10) and the first rotating rod (6) on the lower side, and rotate the transmission rods (27) on both sides at the same time, so that the second bevel gear (16) drives the corresponding first bevel gear (15) to rotate, thereby rotating the screw rod (19), and the screw rod (19) drives the second movable rod (9) to move relative to the second fixed tube (8), so that the connecting plate (10) can be driven to move relative to the first rotating rod (6) on the lower side, and the position of the connecting plate (10) can be adjusted according to the size of the protective net (17). After adjustment, the protective net (17) is limitedly connected to the plurality of hooks (18); Step 2: Install one side of the U-shaped plate (3), clamp the one side of the U-shaped plate (3) on the corresponding upper steel beam and the lower steel beam (1), and then use bolts to lock the U-shaped plate (3) and the corresponding upper steel beam (2) and the lower steel beam (1) into position; Step 3: Move the protective device to the periphery of the building. First, fix the two ends of the steel wire rope (7) on one side to the corresponding first rotating rod (6) and the second rotating rod (12), push the multiple blocks (24) into the corresponding cavities, and then release the limit of the slider (21). Then, slide the slider (21) so that the slider (21) drives the connecting rod (22) to move, so that the second spur gear (29) moves and separates from the first spur gear (28), and releases the limit of the vertical rod (4). The protective device can be rotated to the periphery of the building. Step 4: Install the other side U-shaped plate (3) and the steel wire rope (7), clamp the other side U-shaped plate (3) on the corresponding upper steel beam and lower steel beam (1), and then use bolts to lock the other side U-shaped plate (3) and the corresponding upper steel beam (2) and lower steel beam (1) to limit the position, and then fix the two ends of the remaining steel wire rope (7) to the corresponding first rotating rod (6) and second rotating rod (12), thus completing the installation of the protective device.