Built-in ladder stand assembly of tower crane
By designing built-in climbing ladder components on tower cranes, including inclined stainless steel ladders and safety nets, the problems of laborious and time-consuming climbing and safety hazards have been solved, achieving safe and efficient climbing.
Patent Information
- Application Number
- CN202422519024.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-18
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-10-18
AI Technical Summary
The current tower crane climbing process is laborious and time-consuming, and lacks safety protection, which can easily lead to falls from heights.
Design a tower crane built-in ladder assembly, including an inclined stainless steel ladder and a stainless steel safety net. The assembly is easy to replace by disassembly and assembly, and the combination of rubber pads and protective film improves safety.
It saves climbing energy, prevents falls from heights, improves climbing safety, and facilitates the regular replacement of safety nets.
Smart Images

Figure CN223536273U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of safety devices for tower cranes, and specifically relates to a built-in ladder assembly for tower cranes. Background Technology
[0002] Tower cranes, as the main large-scale machinery on construction sites, are widely used due to their high lifting height, wide coverage, and high efficiency. Especially in the construction of high-rise buildings, tower cranes, with their superior lifting and transportation performance, good lifting height and working range, have become one of the main transportation equipment in project construction, undertaking the main vertical transportation tasks.
[0003] The ladders used on existing construction sites are straight ladders. When tower crane installers and drivers climb up and down the straight ladders, it is laborious and time-consuming, and there are no safety protection measures. If they are not careful while climbing, or if the ladder is wet and slippery after rain, they can easily slip and fall, resulting in injuries and deaths from falls from heights. This poses a significant safety hazard and reduces the safety of tower crane climbing. Utility Model Content
[0004] The purpose of this utility model is to provide a tower crane built-in climbing ladder component to solve the problem that existing tower cranes are laborious and time-consuming to climb and have no safety protection measures, which can easily lead to high-altitude falls and injuries.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a tower crane built-in ladder assembly, comprising: crossbars, four crossbars interconnected to form a docking frame, four pillars connected to the bottom and top of the docking frame, multiple connecting rods connected between the four pillars, and four connecting rods interconnected to form a connecting frame, with multiple diagonal braces connecting the docking frame and the connecting rods; a ladder assembly disposed between two connecting frames, the ladder assembly including support rods, two support rods connected to the inner wall of the connecting frame, and one end of the two support rods interconnected, an L-shaped through groove formed between the connecting frame and the two support rods, a stainless steel safety net disposed inside the L-shaped through groove, a stainless steel ladder connected to one side of the inner wall of the connecting frame, and the other end of the stainless steel ladder interconnected to one side of one of the support rods.
[0006] Preferably, a disassembly assembly is provided between the stainless steel safety net and the L-shaped through groove. The disassembly assembly includes angle steel, and multiple angle steels are respectively connected to the inner corners of the L-shaped through groove. A rod is connected to each corner of the stainless steel safety net. One end of the rod passes through the angle steel, and the outer wall of the rod is threaded. The bottom end of the rod is connected to a nut through the thread.
[0007] Preferably, the bottom of the stainless steel safety net is provided with a protective film.
[0008] Preferably, the stainless steel ladder has multiple rubber pads inside.
[0009] Preferably, bolts are provided at both ends of the stainless steel ladder with one side of the inner wall of the connecting frame and one side of the support rod, respectively.
[0010] Preferably, the nut has arc grooves on both sides.
[0011] Compared with the prior art, this utility model has the following advantages:
[0012] (1) By setting up a climbing ladder assembly, the stainless steel climbing ladder can save the climber's strength to a certain extent by tilting it. In addition, a stainless steel safety net is set in each standard section, so that after climbing one section of the stainless steel climbing ladder, the climber needs to walk to the stainless steel safety net to climb the next section of the stainless steel climbing ladder. This avoids the climber climbing the tower crane for a long time, effectively protects the climber when climbing the tower crane, effectively prevents the occurrence of high-altitude fall injuries and deaths, and improves the safety of tower crane climbing.
[0013] (2) By setting up a disassembly and assembly component, when it is necessary to disassemble and replace the stainless steel safety net, the nut is turned to move downward and separate it from the rod, so that the rod is released from the limit on the angle steel. Then, the stainless steel safety net is pulled upward to separate it from the L-shaped through groove, thereby realizing the quick disassembly and assembly of the stainless steel safety net, improving the disassembly and assembly efficiency of the stainless steel safety net, facilitating the regular replacement of the severely worn stainless steel safety net, and improving the convenience of the device. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a top view of the present invention;
[0016] Figure 3 for Figure 1 Enlarged view of point A;
[0017] Figure 4 for Figure 2 Enlarged view of point B;
[0018] In the diagram: 1. Crossbar; 2. Rubber pad; 3. Support column; 4. Connecting rod; 5. Connecting frame; 6. Diagonal brace; 7. Support rod; 8. Nut; 9. Stainless steel ladder; 10. Stainless steel safety net; 11. Protective membrane; 12. Angle steel; 13. Rod; 14. Thread; 15. Butt joint frame; 16. L-shaped through groove; 17. Arc groove; 18. Bolt. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Reference Figures 1-4 As shown, this utility model provides the following technical solution: a tower crane built-in ladder assembly, comprising: a horizontal bar 1, four horizontal bars 1 connected to each other to form a docking frame 15, four pillars 3 connected to the bottom and top of the docking frame 15, multiple connecting rods 4 connected between the four pillars 3, and four connecting rods 4 connected to each other to form a connecting frame 5, and multiple diagonal braces 6 connected between the docking frame 15 and the connecting rods 4; a ladder assembly, the ladder assembly being disposed between two connecting frames 5, the ladder assembly including support rods 7, two support rods 7 connected to the inner wall of the connecting frame 5, and one end of the two support rods 7 being connected to each other, an L-shaped through groove 16 being formed between the connecting frame 5 and the two support rods 7, a stainless steel safety net 10 being disposed inside the L-shaped through groove 16, a stainless steel ladder 9 being connected to one side of the inner wall of the connecting frame 5, and the other end of the stainless steel ladder 9 being connected to one side of one of the support rods 7.
[0021] Through the above technical solution:
[0022] Specifically, during the process of climbing the tower crane, the stainless steel ladder 9 can be tilted to save the climber's strength to a certain extent. In addition, each standard section is equipped with a stainless steel safety net 10, so that after climbing each section of the stainless steel ladder 9, the climber needs to walk to the stainless steel safety net 10 to climb the next section of the stainless steel ladder 9, thus avoiding the climber having to climb the tower crane for a long time.
[0023] Further embodiments are provided in this utility model, see below. Figures 1-4 A disassembly assembly is provided between the stainless steel safety net 10 and the L-shaped through groove 16. The disassembly assembly includes angle steel 12. Multiple angle steels 12 are respectively connected to the inner corners of the L-shaped through groove 16. A rod 13 is connected to each corner of the stainless steel safety net 10. One end of the rod 13 passes through the angle steel 12, and the outer wall of the rod 13 is provided with threads 14. The bottom end of the rod 13 is connected to a nut 8 through the threads 14.
[0024] Through the above technical solution:
[0025] Specifically, when it is necessary to remove and replace the stainless steel safety net 10, tighten the nut 8 so that the nut 8 moves downward and disengages from the rod 13, so that the rod 13 is released from its limit on the angle steel 12. Then pull the stainless steel safety net 10 upward so that the stainless steel safety net 10 disengages from the L-shaped through groove 16. Then install the replacement stainless steel safety net 10 into the L-shaped through groove 16 as described above.
[0026] Reference Figures 1-3 The stainless steel safety net 10 has a protective film 11 at its bottom. The stainless steel ladder 9 has multiple rubber pads 2 inside. Bolts 18 are installed at both ends of the stainless steel ladder 9 between the inner wall of the connecting frame 5 and the support rod 7, respectively. The nuts 8 have arc grooves 17 on both sides.
[0027] Through the above technical solution:
[0028] Specifically, the protective film 11 prevents objects on the stainless steel safety net 10 from falling through the gaps. The rubber pads 2 increase the friction between the climber and the stainless steel ladder 9 and also provide insulation in winter. The bolts 18 facilitate the regular replacement of the stainless steel ladder 9. The arc grooves 17 facilitate the tightening of nuts.
[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0030] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A tower crane built-in ladder assembly, characterized in that... ,include: A crossbar (1) is formed by connecting four crossbars (1) to form a docking frame (15). The bottom and top of the docking frame (15) are connected to four pillars (3). Multiple connecting rods (4) are connected between the four pillars (3). Each set of four connecting rods (4) is connected to form a connecting frame (5). Multiple diagonal braces (6) are connected between the docking frame (15) and the connecting rods (4). A ladder assembly is provided between two connecting frames (5). The ladder assembly includes support rods (7). The two support rods (7) are connected to the inner wall of the connecting frame (5), and one end of the two support rods (7) is connected to each other. An L-shaped through groove (16) is formed between the connecting frame (5) and the two support rods (7). A stainless steel safety net (10) is provided inside the L-shaped through groove (16). A stainless steel ladder (9) is connected to one side of the inner wall of the connecting frame (5). The other end of the stainless steel ladder (9) is connected to one side of one of the support rods (7). A disassembly assembly is provided between the stainless steel safety net (10) and the L-shaped through groove (16). The disassembly assembly includes angle steel (12). Multiple angle steels (12) are respectively connected to the inner corners of the L-shaped through groove (16). A rod (13) is connected to each corner of the stainless steel safety net (10). One end of the rod (13) passes through the angle steel (12), and the outer wall of the rod (13) is provided with threads (14). The bottom end of the rod (13) is connected to a nut (8) through the threads (14).
2. The tower crane built-in ladder assembly according to claim 1, characterized in that: The bottom of the stainless steel safety net (10) is provided with a protective film (11).
3. The tower crane built-in ladder assembly according to claim 1, characterized in that: The stainless steel ladder (9) has multiple rubber pads (2) inside.
4. A tower crane built-in ladder assembly according to claim 1, characterized in that: Bolts (18) are provided at both ends of the stainless steel ladder (9) to one side of the inner wall of the connecting frame (5) and one side of the support rod (7), respectively.
5. A tower crane built-in ladder assembly according to claim 1, characterized in that: Both sides of the nut (8) are provided with arc grooves (17).