A safety ladder cage

Abstract

This utility model discloses a safety ladder cage, including a lower frame and an upper frame above the lower frame. Ladders are installed in both the lower and upper frames. Two hanging ears are provided on each side of the upper frame. Two mating grooves are formed on the top of the lower frame, and limit holes are formed on the inner walls of both sides of the two mating grooves. Two disassembly and assembly mechanisms are provided on the upper frame. Each disassembly and assembly mechanism includes a box embedded in the bottom of the upper frame. A fixing block is fixedly installed between the inner walls of the two sides of the box, and a threaded rod rotatably connected to the fixing block passes through it. This utility model, by setting up disassembly and assembly mechanisms, allows the two limit rods to move closer or further apart by rotating a knob, thereby enabling the two limit rods to move away from or into the two limit holes respectively. This achieves quick disassembly and assembly of the safety ladder cage, making operation simple and convenient.

Description

Technical Field

[0001] This utility model relates to the field of safety ladder cage technology, and in particular to a safety ladder cage. Background Technology

[0002] Safety ladders, as temporary climbing facilities widely used in construction, mining, bridge and other engineering projects, provide construction workers with convenient and relatively safe vertical passageways. They are typically constructed from multiple frame structures, possessing high structural strength and stability, and can effectively withstand the weight of construction workers as well as various external forces that may occur during the climb.

[0003] Currently, in practical applications of safety ladder cages, the connection between cages mainly relies on angle steel and fixing bolts for locking and securing. However, this connection method has significant drawbacks in actual operation. For example, during the process of fixing the ladder cage, construction workers must tighten multiple sets of bolts one by one, which is tedious and complicated, not only consuming a lot of time and energy but also resulting in extremely low installation efficiency. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a safe ladder cage.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A safety ladder cage includes a lower frame and an upper frame above the lower frame. Ladders are provided in both the lower and upper frames. Two hanging ears are provided on both sides of the upper frame. Two mating grooves are provided on the top of the lower frame. Limiting holes are provided on the inner walls of both sides of the two mating grooves. Two disassembly and assembly mechanisms are provided on the upper frame.

[0007] Preferably, the disassembly and assembly mechanism includes a box body embedded in the bottom of the upper frame, a fixing block fixedly installed between the two inner walls of the box body, a threaded rod rotatably connected to the fixing block, a worm gear fixedly installed on the outer wall of the threaded rod, a worm rotatably connected between the two inner walls of the box body, the worm gear meshing with the worm gear, and one end of the worm gear penetrating one inner wall of the box body and a knob located outside the box body fixedly installed.

[0008] Preferably, two telescopic rods are fixedly installed at the bottom of the fixed block, and the same lifting block is fixedly connected to the telescopic ends of the two telescopic rods. The lifting block is threaded onto the threaded rod. One end of a spring is fixedly connected to the inner walls of both sides of the box, and a moving block is fixedly connected to the other end of each of the two springs. A limit rod is fixedly installed on the side wall of each of the two moving blocks that are far apart from each other. Through holes are opened on the inner walls of both sides of the box.

[0009] Preferably, the box body is adapted to the mating groove.

[0010] Preferably, the diameter of the through hole is the same as the diameter of the limiting hole, and the limiting rod is adapted to the limiting hole.

[0011] Preferably, the lifting block is conical, and both moving blocks are hemispherical.

[0012] The beneficial effects of this utility model are:

[0013] By setting up a disassembly and assembly mechanism, the two limit rods can be moved closer or further apart by rotating the knob. This allows the two limit rods to move away from the two limit holes or to be inserted into the two limit holes, thus enabling the safety cage to be quickly disassembled and installed. The operation is simple and convenient. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a safety ladder cage proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the planar structure of the disassembly and assembly mechanism of this utility model;

[0016] Figure 3 This is a three-dimensional structural diagram of the lifting block and the moving block of this utility model.

[0017] In the diagram: 1. Lower frame, 2. Upper frame, 3. Ladder, 4. Hanging lug, 5. Knob, 6. Box body, 7. Worm gear, 8. Threaded rod, 9. Worm, 10. Fixing block, 11. Telescopic rod, 12. Lifting block, 13. Mating groove, 14. Limiting rod, 15. Moving block, 16. Spring, 17. Limiting hole, 18. Through hole. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figures 1-3 A safety ladder cage includes a lower frame 1, an upper frame 2 above the lower frame 1, and ladders 3 inside both the lower frame 1 and the upper frame 2 for construction workers to climb and pass through. Two hanging ears 4 are provided on both sides of the upper frame 2. Two mating grooves 13 are opened on the top of the lower frame 1. Limiting holes 17 are opened on the inner walls of both sides of the two mating grooves 13. The limiting holes 17 are used to cooperate with the limiting rods 14 to lock and fix the lower frame 1 and the upper frame 2, prevent relative displacement between the two during use, and ensure the structural safety of the safety ladder cage. Two disassembly and assembly mechanisms are provided on the upper frame 2.

[0020] The disassembly and assembly mechanism includes a box 6 embedded in the bottom of the upper frame 2. A fixing block 10 is fixedly installed between the inner walls of both sides of the box 6. A threaded rod 8 is rotatably connected to the fixing block 10. A worm gear 7 is fixedly installed on the outer wall of the threaded rod 8. A worm 9 is rotatably connected between the inner walls of both sides of the box 6. The worm 9 meshes with the worm gear 7, transmitting the rotational motion of the worm 9 to the threaded rod 8, thus achieving power transmission and steering. Simultaneously, the transmission between the worm gear 7 and the worm 9 has a self-locking function, preventing the threaded rod 8 from rotating on its own without human intervention, ensuring the stability of the safety cage connection. One end of the worm 9 passes through one inner wall of the box 6 and a knob 5 located outside the box 6 is fixedly installed. The bottom of the fixing block 10... Two telescopic rods 11 are fixedly installed on the box body 6. The telescopic ends of the two telescopic rods 11 are fixedly connected to the same lifting block 12. The lifting block 12 is threaded onto the threaded rod 8. One end of the spring 16 is fixedly connected to the inner wall of both sides of the box body 6. The other end of the two springs 16 is fixedly connected to the moving block 15. Limiting rods 14 are fixedly installed on the side wall of the two moving blocks 15 that are far apart from each other. Through holes 18 are opened on the inner wall of both sides of the box body 6. The box body 6 is adapted to the mating groove 13 to ensure that the upper frame 2 and the lower frame 1 can be connected. The diameter of the through hole 18 is the same as the diameter of the limiting hole 17. The limiting rod 14 is adapted to the limiting hole 17. The lifting block 12 is conical and the two moving blocks 15 are hemispherical.

[0021] In use, the lower frame 1 is placed in the desired position, and the upper frame 2 is lifted by the hanging ears 4. After adjusting the angle, the two boxes 6 respectively engage with the two mating grooves 13. By rotating the knob 5, the worm 9 is rotated. Through the meshing connection between the worm 9 and the worm wheel 7, the threaded rod 8 can rotate in one direction. When the threaded rod 8 rotates in one direction, the lifting block 12 can move downward through the guidance of the two telescopic rods 11 and the threaded connection between the lifting block 12 and the threaded rod 8. When the lifting block 12 moves downward, the curved surface of the lifting block 12 will interact with the two moving... The curved surfaces of the moving blocks 15 are in contact with each other, and as the lifting block 12 moves downward, the two moving blocks 15 move away from each other, thereby compressing the spring 16. The two moving blocks 15 that move away from each other pass through the through hole 18 and are inserted into the two limiting holes 17 respectively, thus realizing the installation between the lower frame 1 and the upper frame 2. By rotating the knob 5, the threaded rod 8 is rotated in another direction, thereby enabling the lifting block 12 to move upward. The spring 16 enables the two limiting rods 14 to move away from the limiting holes 17 respectively, thus separating the lower frame 1 and the upper frame 2, thereby realizing the quick disassembly of the safety cage.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A safety cage comprising a lower frame (1), characterized in that, An upper frame (2) is provided above the lower frame (1). Ladders (3) are provided inside both the lower frame (1) and the upper frame (2). Two hanging ears (4) are provided on both sides of the upper frame (2). Two mating grooves (13) are provided on the top of the lower frame (1). Limiting holes (17) are provided on the inner walls of both sides of the two mating grooves (13). Two disassembly and assembly mechanisms are provided on the upper frame (2). The disassembly and assembly mechanism includes a box (6) embedded in the bottom of the upper frame (2). A fixing block (10) is fixedly installed between the inner walls of the two sides of the box (6). A threaded rod (8) is rotatably connected to the fixing block (10). A worm gear (7) is fixedly installed on the outer wall of the threaded rod (8). A worm is rotatably connected between the inner walls of the two sides of the box (6). (9) The worm (9) meshes with the worm wheel (7). One end of the worm (9) passes through the inner wall of one side of the box (6) and is fixedly installed with a knob (5) located outside the box (6). Two telescopic rods (11) are fixedly installed at the bottom of the fixed block (10). The same lifting block (12) is fixedly connected to the telescopic ends of the two telescopic rods (11). The lifting block (12) is threaded onto the threaded rod (8). One end of a spring (16) is fixedly connected to the inner walls of both sides of the box (6). The other end of the two springs (16) is fixedly connected to a moving block (15). Limiting rods (14) are fixedly installed on the side walls of the two moving blocks (15) that are far apart from each other. Through holes (18) are opened on the inner walls of both sides of the box (6).

2. A safety cage according to claim 1, characterised in that, The box body (6) is adapted to the mating groove (13).

3. A safety cage according to claim 1, wherein, The diameter of the through hole (18) is the same as the diameter of the limiting hole (17), and the limiting rod (14) is adapted to the limiting hole (17).

4. A safety cage according to claim 2, wherein, The lifting block (12) is conical, and the two moving blocks (15) are hemispherical.

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