A high-altitude operation foldable safety hanging basket for connecting a steel beam and a core tube

By designing a foldable guardrail structure, the problem of large space occupation during the relocation of safety hanging baskets was solved, and the transportation convenience of passing through height-restricted sections was achieved without affecting the functionality.

CN121273083BActive Publication Date: 2026-08-04THE FIRST COMPARY OF CHINA EIGHTH ENG BUREAU LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
THE FIRST COMPARY OF CHINA EIGHTH ENG BUREAU LTD
Filing Date
2025-10-23
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

The existing safety hanging baskets are usually connected to the guardrail by welding, which results in a large space occupation during relocation and makes it impossible to pass through some height-restricted roads.

Method used

A foldable safety hanging basket for high-altitude operations connecting steel beams and core tubes was designed. The basket's height is reduced by using a rotating and folding guardrail structure to store the guardrail. The basket includes guardrail mounting posts at the top of the platform, rotating guardrails, and limiting and connecting mechanisms. The foldable guardrail is achieved using fast-rebound memory foam and screw limiting rods.

Benefits of technology

Without affecting functionality, the height of the safety basket is significantly reduced by using a folding guardrail structure, enabling it to safely pass through height-restricted road sections and improving transportation convenience.

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Abstract

This invention relates to the field of safety hanging basket technology, specifically a foldable safety hanging basket for high-altitude operations connecting steel beams and core tubes. It includes: a platform, with a guardrail mounting post fixed to the top of the platform. A first long guardrail is rotatably connected to the guardrail mounting post, and a second long guardrail is movably inserted into the top of the first long guardrail. The beneficial effect is that by releasing the limiting mechanism and then rotating the short guardrail, the connecting mechanism becomes ineffective, causing the second long guardrail to retract into the first long guardrail. Then, rotating it 90 degrees folds the first long guardrail down onto the top of the platform. After the short guardrail rotates 90 degrees and is parallel to the platform, pushing it further causes the short guardrail mounting shaft to slide in the short guardrail mounting groove, folding the short guardrail and storing it under the platform. Through the folding of the first and short guardrails, the height of the safety hanging basket can be greatly reduced, allowing it to safely pass through height-restricted sections during relocation, making transportation more convenient.
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Description

Technical Field

[0001] This invention relates to the field of safety hanging basket technology, specifically a foldable safety hanging basket for high-altitude operations connecting steel beams and core tubes. Background Technology

[0002] A safety hanging basket is a temporary work platform specifically designed for the construction of steel structures in high-rise buildings. In the construction and maintenance of modern buildings, the safety hanging basket has become an indispensable piece of equipment. The core tube is usually a reinforced concrete structure in the central area of ​​a high-rise building, containing elevator shafts, stairwells, equipment and pipe shafts, etc. Steel beams are horizontally spanning components, which need to be supported at one or both ends on the core tube or other vertical components (such as steel columns). The safety hanging basket is used to carry out construction during the connection process between the steel beams and the core tube, which can solve core problems such as high-altitude operations, precise positioning, temporary support, construction efficiency and safety.

[0003] In the prior art, patent application CN202211610916.X discloses a movable aerial work platform, including a roller plate, side baffles, a lower fixed plate, roller limiting plates, side supports, slide grooves, sliding seat plates, roller supports, rollers, side pulley frames, side pulleys, a drive motor, a motor sprocket, a drive sprocket, a platform fixing plate, connecting bolts, a platform connecting rod, and a platform. Its advantages are: the invention is simple to install and disassemble, can be fixed to beams according to the actual conditions of the factory, and moves the entire platform by controlling the rotation of the motor to drive the rollers. It has low construction costs, is easy to maintain, has smooth transmission, and a strong carrying capacity.

[0004] Regardless of the versatility of the safety hanging basket's functions, the platform and guardrail are two essential components. The platform is responsible for carrying personnel and goods, while the guardrail provides protection against falls for personnel and goods on the platform.

[0005] However, in existing safety hanging baskets, the platform and guardrail are usually connected by welding. This results in the safety hanging basket occupying a lot of space when being moved. When placed in the truck bed, the guardrail is often much higher than the truck, making it impossible to pass through certain roads with height restrictions, which brings inconvenience to the relocation of safety hanging baskets. Summary of the Invention

[0006] The purpose of this invention is to provide a foldable safety hanging basket for high-altitude operations connecting steel beams and core tubes, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a foldable safety hanging basket for high-altitude operations connecting steel beams and core tubes, comprising: a platform, a guardrail mounting column fixed at the top of the platform, a first long guardrail rotatably connected to the guardrail mounting column, a second long guardrail movably inserted into the top of the first long guardrail, a handrail fixed at the top of the second long guardrail, a short guardrail mounting track fixed at the bottom of the platform, a short guardrail mounting groove provided on the short guardrail mounting track, a short guardrail mounting shaft movably connected in the short guardrail mounting groove, a short guardrail fixed on the short guardrail mounting shaft, a connecting mechanism provided between the handrail and the short guardrail, and a limit mechanism provided between the guardrail mounting column and the short guardrail.

[0008] Preferably, the connecting mechanism includes: a connecting rod, the connecting rod having an "L"-shaped round rod structure, one end of the connecting rod being rotatably inserted into the short guardrail, a connecting hole being provided on the handrail, and the end of the connecting rod away from the short guardrail being movably inserted into the connecting hole.

[0009] Preferably, the short guardrail has a connecting rod mounting groove, one end of the connecting rod is fixed with a connecting rod end plate, the connecting rod end plate is movably connected in the connecting rod mounting groove, and a fast rebound memory foam is fixed between the inner side wall of the connecting rod mounting groove and the connecting rod end plate. The fast rebound memory foam can be replaced with multiple sets of compression springs and spring sheets with sufficient elastic deformation, fatigue strength and corrosion resistance according to the usage environment.

[0010] Preferably, the short guardrail has a connecting rod storage groove.

[0011] Preferably, the limiting mechanism includes: a limiting rod mounting groove, a limiting groove, and a limiting rod. Both the limiting rod mounting groove and the limiting groove are circular groove structures. The limiting rod mounting groove is opened on the short guardrail, and the limiting groove is opened on the guardrail mounting post. The limiting rod is a round rod structure, with one end of the limiting rod rotatably inserted into the limiting rod mounting groove and the other end of the limiting rod rotatably inserted into the limiting groove.

[0012] Preferably, the short guardrail has a screw hole, which is a round hole with an internal thread on its wall. The screw hole is connected to the mounting groove of the limiting rod. A screw rod is rotatably connected in the screw hole. The screw rod has an external thread on its body. The internal thread of the screw hole matches the external thread of the screw rod. One end of the screw rod extends into the mounting groove of the limiting rod and is fixed to the limiting rod. The other end of the screw rod extends out of the screw hole and is fixed with a hand-tightening nut.

[0013] Preferably, the second long guardrail has a first positioning hole and a second positioning hole, which are arranged vertically. The first long guardrail has a positioning rod insertion hole. Both the first and second positioning holes are circular groove structures, and the positioning rod insertion hole is a circular hole structure. The diameters of the first positioning hole, the positioning rod insertion hole, and the second positioning hole are the same. One end of the positioning rod is movably inserted into the positioning rod insertion hole, and the other end of the positioning rod is movably inserted into the first positioning hole. The positioning rod is a circular rod structure.

[0014] Preferably, a sleeve is fixed on the first long guardrail, and a pull rod is movably inserted into the sleeve, with one end of the pull rod fixed to a positioning rod.

[0015] Preferably, the pull rod has a round rod structure, and a spring is sleeved on the pull rod. One end of the spring abuts against the positioning rod, and the other end of the spring abuts against the inner wall of the sleeve.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The foldable safety basket for high-altitude operations connecting steel beams and core tubes proposed in this invention allows for easy deployment after use. After use, the basket is lowered to the ground, the hooks are removed from the short guardrail, releasing the limiting mechanism. The short guardrail is then rotated, causing the connecting mechanism to disengage, allowing the second long guardrail to retract into the first long guardrail. The first long guardrail is then rotated 90 degrees, folding it down onto the platform. After the short guardrail is rotated 90 degrees and parallel to the platform, it is pushed to allow its mounting shaft to slide within its mounting groove, folding it under the platform. This folding of the first and short guardrails significantly reduces the height of the safety basket, enabling it to safely pass through height-restricted areas during relocation and facilitating transportation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the bottom structure of the present invention;

[0020] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure at point AA;

[0021] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point B;

[0022] Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point C;

[0023] Figure 6 for Figure 1Schematic diagram of the cross-sectional structure at point DD;

[0024] Figure 7 for Figure 6 Enlarged schematic diagram of the structure at point E in the middle;

[0025] Figure 8 A schematic diagram of the safety suspended platform in its folded state;

[0026] Figure 9 This is a schematic diagram showing the structure with the connecting rod extending into the mounting slot of the short guardrail.

[0027] In the diagram: Platform 1, Guardrail mounting post 2, First long guardrail 3, Second long guardrail 4, Handrail 5, Short guardrail mounting track 6, Short guardrail 7, Hook 8, Connecting hole 9, Connecting rod 10, Connecting rod mounting slot 11, Connecting rod end plate 12, Connecting rod storage slot 13, Limiting rod mounting slot 14, Limiting slot 15, Limiting rod 16, Screw hole 17, Screw 18, First positioning hole 19, Positioning rod insertion hole 20, Positioning rod 21, Sleeve 22, Pull rod 23, Spring 24, Operating lever 25, Short guardrail mounting shaft 26, Second positioning hole 27, Short guardrail mounting slot 28, Quick-rebound memory foam 29. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1: Please refer to Figures 1 to 9 This invention provides a technical solution: a foldable safety hanging basket for high-altitude operations connecting steel beams and core tubes, comprising: a platform 1, a guardrail mounting post 2 fixed at the top of the platform 1, a first long guardrail 3 rotatably connected to the guardrail mounting post 2, a second long guardrail 4 movably inserted into the top of the first long guardrail 3, a handrail 5 fixed at the top of the second long guardrail 4, a short guardrail mounting track 6 fixed at the bottom of the platform 1, a short guardrail mounting groove 28 provided on the short guardrail mounting track 6, a short guardrail mounting shaft 26 movably connected in the short guardrail mounting groove 28, a short guardrail 7 fixed on the short guardrail mounting shaft 26, a connecting mechanism provided between the handrail 5 and the short guardrail 7, and a limit mechanism provided between the guardrail mounting post 2 and the short guardrail 7.

[0030] When using this safety basket, extend the second long guardrail 4 from the top of the first long guardrail 3, rotate the short guardrail 7 to a position perpendicular to the platform 1, and then connect the handrail 5 and the short guardrail 7 together through the connecting mechanism. Use the limiting mechanism to limit the distance between the short guardrail 7 and the guardrail mounting post 2, keeping the short guardrail 7 upright. Then, install the hook 8 on the short guardrail 7 using bolts and nuts. Position the winch at the top of the core tube and connect the winch cable to the hook 8 to lift the safety basket. After use, lower the safety basket to the ground, then remove the hook 8 from the short guardrail 7 to release the limiting mechanism. The mechanism is limited, and then the short guardrail 7 is rotated. As the short guardrail 7 rotates, the connecting mechanism fails, causing the second long guardrail 4 to retract into the first long guardrail 3. Then, it is rotated 90 degrees, causing the first long guardrail 3 to be folded down and placed on top of the platform 1. After the short guardrail 7 is rotated 90 degrees and is parallel to the platform 1, the short guardrail 7 is pushed again, causing the short guardrail mounting shaft 26 to slide in the short guardrail mounting groove 28, causing the short guardrail 7 to be folded and stored under the platform 1. By folding the first long guardrail 3 and the short guardrail 7, the height of the safety basket can be greatly reduced, so that the safety basket can safely pass through height-restricted sections when moving, making transportation more convenient.

[0031] Example 2: Based on Example 1, in order to realize the operation of the connecting mechanism, the connecting mechanism includes: a connecting rod 10, which is an "L"-shaped round rod structure. One end of the connecting rod 10 is rotatably inserted into the short guardrail 7. A connecting hole 9 is provided on the handrail 5. The end of the connecting rod 10 away from the short guardrail 7 is movably inserted into the connecting hole 9. A connecting rod mounting groove 11 is provided on the short guardrail 7. A connecting rod end plate 12 is fixed to one end of the connecting rod 10. The connecting rod end plate 12 is movably connected in the connecting rod mounting groove 11. A fast rebound memory foam 29 is fixed between the inner side wall of the connecting rod mounting groove 11 and the connecting rod end plate 12. The fast rebound memory foam 29 can be replaced with multiple sets of compression springs and spring sheets with sufficient elastic deformation, fatigue strength and corrosion resistance according to the usage environment. A connecting rod storage groove 13 is provided on the short guardrail 7.

[0032] When it is necessary to connect the handrail 5 and the short guardrail 7, one end of the connecting rod 10 extends from the short guardrail 7 and is inserted into the connecting hole 9, preventing the first long guardrail 3, the second long guardrail 4, and the handrail 5 from rotating, thus achieving the connection between the handrail 5 and the short guardrail 7. When it is necessary to disconnect the handrail 5 and the short guardrail 7, simply rotate the short guardrail 7, causing the connecting rod 10 to be pulled out of the connecting hole 9. When it is necessary to store the short guardrail 7 under the platform 1, as the short guardrail 7 is rotated to a state parallel to the platform 1, the connecting rod 10 is also rotated 90 degrees, and then the part of the connecting rod 10 extending out of the short guardrail 7 is pressed into the connecting hole. In the rod storage slot 13, the connecting rod 10 extends into the connecting rod mounting slot 11. The quick-rebound memory foam 29 is compressed by the connecting rod end plate 12 and the inner wall of the connecting rod mounting slot 11, and then the short guardrail 7 is pushed downwards towards the platform 1. When the connecting rod storage slot 13 moves to align with the short guardrail mounting slot 28, the connecting rod 10 is released. The quick-rebound memory foam 29 pushes the connecting rod end plate 12 back to its original position under its own elasticity. The connecting rod end plate 12 pushes one end of the connecting rod 10 out of the connecting rod storage slot 13 and inserts it into the short guardrail mounting slot 28. Through the short guardrail mounting slot 28 and the short guardrail mounting shaft 26, the short guardrail 7 is hung on the short guardrail mounting track 6.

[0033] Example 3: Based on Example 2, to realize the operation of the limiting mechanism, the limiting mechanism includes: a limiting rod mounting groove 14, a limiting groove 15, and a limiting rod 16. Both the limiting rod mounting groove 14 and the limiting groove 15 are circular groove structures. The limiting rod mounting groove 14 is formed on the short guardrail 7, and the limiting groove 15 is formed on the guardrail mounting post 2. The limiting rod 16 is a circular rod structure, with one end of the limiting rod 16 rotatably inserted into the limiting rod mounting groove 14, and the other end of the limiting rod 16 rotatably inserted into the limiting groove 15. In the groove 15, a screw hole 17 is provided on the short guardrail 7. The screw hole 17 is a round hole and the hole wall of the screw hole 17 is provided with internal thread. The screw hole 17 is connected to the limit rod mounting groove 14. A screw rod 18 is rotatably connected in the screw hole 17. The screw rod 18 is provided with external thread. The internal thread of the screw hole 17 is engaged with the external thread of the screw rod 18. One end of the screw rod 18 extends into the limit rod mounting groove 14 and is fixed on the limit rod 16. The other end of the screw rod 18 extends out from the screw hole 17 and is fixed with a hand-tightening nut.

[0034] When the limiting rod mounting groove 14 is aligned with the limiting groove 15, the screw 18 is rotated, and through the threaded connection between the screw 18 and the screw hole 17, one end of the limiting rod 16 extends into the limiting groove 15, while the other end of the limiting rod 16 remains in the limiting rod mounting groove 14, thereby limiting the short guardrail 7 to the guardrail mounting post 2; by rotating the screw 18 in the opposite direction, through the threaded connection between the screw 18 and the screw hole 17, the limiting rod 16 can be removed from the limiting groove 15, thereby releasing the limiting.

[0035] Example 4: Based on Example 3, in order to adjust the extension state of the second long guardrail 4 from the first long guardrail 3, the second long guardrail 4 is provided with a first positioning hole 19 and a second positioning hole 27, which are arranged vertically. The first long guardrail 3 is provided with a positioning rod insertion hole 20. Both the first positioning hole 19 and the second positioning hole 27 are circular groove structures, and the positioning rod insertion hole 20 is a circular hole structure. The first positioning hole 19, the positioning rod insertion hole 20, and the second positioning hole 27 are also provided with a positioning rod insertion hole 20. The diameters of the 7 are the same. One end of the positioning rod 21 is movably inserted into the positioning rod insertion hole 20, and the other end of the positioning rod 21 is movably inserted into the first positioning hole 19. The positioning rod 21 has a round rod structure. A sleeve 22 is fixed on the first long guardrail 3. A pull rod 23 is movably inserted into the sleeve 22. One end of the pull rod 23 is fixed on the positioning rod 21. The pull rod 23 has a round rod structure. A spring 24 is sleeved on the pull rod 23. One end of the spring 24 abuts against the positioning rod 21, and the other end of the spring 24 abuts against the inner wall of the sleeve 22.

[0036] When using this safety hanging basket, after rotating the first long guardrail 3 to the upright position, first pull the operating lever 25. The operating lever 25 pulls each set of pull rods 23 out of the sleeve 22. The pull rods 23 drive the positioning rod 21 to move into the sleeve 22. At this time, the spring 24 is compressed. Then, you can lift the handrail 5 to pull the second long guardrail 4 out of the first long guardrail 3. Then release the operating lever 25. When the second long guardrail 4 moves to the point where the first positioning hole 19 is aligned with the positioning rod insertion hole 20, the spring 24 pushes one end of the positioning rod 21 into the first positioning hole 19, and the other end of the positioning rod 21 stays in the positioning hole. The second long guardrail 4 can be limited to the state of extending out of the first long guardrail 3 by inserting it into the rod insertion hole 20. When the safety basket is being transported, the operating rod 25 is pulled again to move each set of positioning rods 21 into the sleeve 22. Then the second long guardrail 4 is lowered. When the second long guardrail 4 is retracted into the first long guardrail 3, the second positioning hole 27 is aligned with the positioning rod insertion hole 20. Then the operating rod 25 is released, and the spring 24 pushes one end of the positioning rod 21 into the second positioning hole 27. The other end of the positioning rod 21 stays in the positioning rod insertion hole 20, thus limiting the second long guardrail 4 to the state of retracting into the first long guardrail 3.

[0037] In actual use, after the safety drop device is used, remove the hook 8 from the short guardrail 7, rotate the screw 18, and through the threaded connection between the screw 18 and the screw hole 17, the limiting rod 16 can be disengaged from the limiting groove 15, thereby releasing the limit; then rotate the short guardrail 7, and as the short guardrail 7 is rotated to a state parallel to the platform 1, the connecting rod 10 is pulled out from the connecting hole 9. Rotate the connecting rod 10 90 degrees as well, and then press the part of the connecting rod 10 extending out of the short guardrail 7 into the connecting hole 9. In the rod storage slot 13, the connecting rod 10 extends into the connecting rod mounting slot 11. The quick-rebound memory foam 29 is compressed by the connecting rod end plate 12 and the inner wall of the connecting rod mounting slot 11, and then the short guardrail 7 is pushed downwards towards the platform 1. When the connecting rod storage slot 13 moves to align with the short guardrail mounting slot 28, the connecting rod 10 is released. The quick-rebound memory foam 29, under its own elasticity, pushes the connecting rod end plate 12 back to its original position, and the connecting rod end plate 12 pushes one end of the connecting rod 10 out of the connecting rod storage slot 11. 3. Insert the short guardrail 7 into the short guardrail mounting slot 28. Through the short guardrail mounting slot 28 and the short guardrail mounting shaft 26, hang the short guardrail 7 on the short guardrail mounting track 6 to fold and store the short guardrail 7 under the platform 1. Then pull the operating lever 25 to move each set of positioning rods 21 into the sleeve 22. Then lower the second long guardrail 4. When the second long guardrail 4 retracts into the first long guardrail 3, the second positioning hole 27 aligns with the positioning rod insertion hole 20. Then release the operating lever 25, and the spring 2... 4. Push one end of the positioning rod 21 into the second positioning hole 27, and let the other end of the positioning rod 21 stay in the positioning rod insertion hole 20. This will limit the second long guardrail 4 to be retracted into the first long guardrail 3. Then rotate the first long guardrail 3 so that it is folded and stored at the top of the platform 1. By folding and storing the first long guardrail 3 and the short guardrail 7, the height of the safety basket can be greatly reduced, so that the safety basket can safely pass through height-restricted sections when moving to another site, making transportation more convenient.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A foldable safety hanging basket for high-altitude operations connecting steel beams and core tubes, comprising: Platform (1), characterized in that: a guardrail mounting post (2) is fixed at the top of the platform (1), a first long guardrail (3) is rotatably connected to the guardrail mounting post (2), a second long guardrail (4) is movably inserted into the top of the first long guardrail (3), a handrail (5) is fixed at the top of the second long guardrail (4), a short guardrail mounting track (6) is fixed at the bottom of the platform (1), a short guardrail mounting groove (28) is opened on the short guardrail mounting track (6), a short guardrail mounting shaft (26) is movably connected in the short guardrail mounting groove (28), a short guardrail (7) is fixed on the short guardrail mounting shaft (26), a connecting mechanism is provided between the handrail (5) and the short guardrail (7), and a limit mechanism is provided between the guardrail mounting post (2) and the short guardrail (7); The connecting mechanism includes: a connecting rod (10), which is an "L"-shaped round rod structure. One end of the connecting rod (10) is rotatably inserted into the short guardrail (7). A connecting hole (9) is provided on the handrail (5). The end of the connecting rod (10) away from the short guardrail (7) is movably inserted into the connecting hole (9). The short guardrail (7) is provided with a connecting rod mounting groove (11). One end of the connecting rod (10) is fixed with a connecting rod end plate (12). The connecting rod end plate (12) is movably connected in the connecting rod mounting groove (11). A fast rebound memory foam (29) is fixed between the inner wall of the connecting rod mounting groove (11) and the connecting rod end plate (12). The fast rebound memory foam (29) can be replaced with multiple sets of compression springs and spring sheets with sufficient elastic deformation, fatigue strength and corrosion resistance according to the usage environment. The short guardrail (7) is provided with a connecting rod storage groove (13).

2. The foldable safety hanging basket for high-altitude operations connecting steel beams and core tubes according to claim 1, characterized in that: The limiting mechanism includes: a limiting rod mounting groove (14), a limiting groove (15), and a limiting rod (16). Both the limiting rod mounting groove (14) and the limiting groove (15) are circular groove structures. The limiting rod mounting groove (14) is opened on the short guardrail (7), and the limiting groove (15) is opened on the guardrail mounting post (2). The limiting rod (16) is a round rod structure. One end of the limiting rod (16) is rotatably inserted into the limiting rod mounting groove (14), and the other end of the limiting rod (16) is rotatably inserted into the limiting groove (15).

3. A foldable safety hanging basket for high-altitude operations connecting steel beams and core tubes according to claim 2, characterized in that: The short guardrail (7) is provided with a screw hole (17). The screw hole (17) is a round hole and the hole wall of the screw hole (17) is provided with an internal thread. The screw hole (17) is connected to the limit rod mounting groove (14). A screw rod (18) is rotatably connected in the screw hole (17). The screw rod (18) is provided with an external thread. The internal thread of the screw hole (17) is engaged with the external thread of the screw rod (18). One end of the screw rod (18) extends into the limit rod mounting groove (14) and is fixed on the limit rod (16). The other end of the screw rod (18) extends out from the screw hole (17) and is fixed with a hand-tightening nut.

4. A foldable safety hanging basket for high-altitude operations connecting steel beams and core tubes according to claim 1, characterized in that: The second long guardrail (4) is provided with a first positioning hole (19) and a second positioning hole (27). The second positioning hole (27) and the first positioning hole (19) are distributed vertically. The first long guardrail (3) is provided with a positioning rod insertion hole (20). The first positioning hole (19) and the second positioning hole (27) are both circular groove structures. The positioning rod insertion hole (20) is a circular hole structure. The diameters of the first positioning hole (19), the positioning rod insertion hole (20) and the second positioning hole (27) are the same. One end of the positioning rod (21) is movably inserted into the positioning rod insertion hole (20). The other end of the positioning rod (21) is movably inserted into the first positioning hole (19). The positioning rod (21) is a circular rod structure.

5. A foldable safety hanging basket for high-altitude operations connecting steel beams and core tubes according to claim 4, characterized in that: A sleeve (22) is fixed on the first long guardrail (3), and a pull rod (23) is movably inserted into the sleeve (22). One end of the pull rod (23) is fixed on the positioning rod (21).

6. A foldable safety hanging basket for high-altitude operations connecting steel beams and core tubes according to claim 5, characterized in that: The pull rod (23) has a round rod structure, and a spring (24) is sleeved on the pull rod (23). One end of the spring (24) abuts against the positioning rod (21), and the other end of the spring (24) abuts against the inner wall of the sleeve (22).