Safety operation platform for erection and disassembly of cantilever frame

Abstract

The invention relates to the technical field of building construction, in particular to a safety operation platform for erection and disassembly of a cantilever frame, which comprises a frame structure, the frame structure comprises a plurality of shaping brackets, main beams and secondary beams, the shaping brackets are arranged at intervals in the horizontal direction, and each shaping bracket comprises a positioning anchor rod, a bearing rod and a plurality of supporting rods; the positioning anchor rod is fixed at a corresponding position of a wall body, the bearing rod is horizontal and is fixedly connected with the positioning anchor rod, and the supporting rods are vertical and are fixedly connected with the bearing rod at intervals; the multiple main beams and the multiple secondary beams are arranged, a net-shaped structure is defined by the main beams and the secondary beams, and the main beams and the secondary beams are fixedly connected with the positioning anchor rods and / or the supporting rods. A plurality of step plates are fixedly connected to the tops of the main beams and the secondary beams; the main beam is provided with a blocking net. The cantilever frame has the advantages that the overall stability in the construction and dismantling operation of the cantilever frame can be improved, and the overall working efficiency and quality are effectively improved.

Description

Technical Field

[0001] The present application relates to the technical field of building construction, and in particular to a safe operation platform for erecting and dismantling a cantilever frame. Background Art

[0002] In construction operations, the cantilever frame is a widely used supporting device. Operators can stand on the cantilever frame and walk along the cantilever frame to perform corresponding construction operations. At the same time, some construction tools can be placed on the outside of the cantilever frame, and the operator can then perform subsequent related operations.

[0003] In the related art, during the erection and dismantling stages of the cantilever frame, the usual practice is to rely on the ordinary scaffolding that has been constructed below to complete the operation, that is, to place the dismantling personnel at a height parallel to it, and then perform corresponding erection or dismantling actions on the upper cantilever frame to complete the given task.

[0004] Regarding the above-mentioned related technologies, there are no effective isolation measures between the upper and lower layers, which makes it very easy for tools to fall and injure people during the demolition process. At the same time, there is a lack of a support system specially designed for demolition operations, which makes the entire operation process not standardized, further increasing the probability of accidents. When encountering complex terrain or special structure buildings, the construction effect is poor, which in turn affects safety and stability. Summary of the invention

[0005] In order to improve the overall stability during the erection and dismantling operations of the cantilever frame and effectively improve the overall work efficiency and quality, the present application provides a cantilever frame erection and dismantling safe operating platform.

[0006] The present application provides a cantilever frame erection and dismantling safety operation platform, which adopts the following technical solutions: A cantilever frame erection and dismantling safety operation platform, comprising a frame structure, the frame structure comprising a plurality of fixed brackets, a main beam and a secondary beam, and the fixed brackets are arranged at intervals in the horizontal direction, the fixed brackets include a positioning anchor rod, a load-bearing rod and a plurality of support rods, the positioning anchor rod is fixed to a corresponding position of a wall, the load-bearing rod is horizontal and fixedly connected to the positioning anchor rod, a plurality of support rods are provided, the support rods are vertical and fixedly connected to the load-bearing rods at intervals; The main beam and the secondary beam are provided with a plurality of them, and a mesh structure is formed by enclosing the main beam and the secondary beam, and the main beam and the secondary beam are fixedly connected to the positioning anchor rod and / or the support rod; A plurality of treads are fixedly connected to the tops of the main beam and the secondary beam; The main beam is equipped with a blocking net.

[0007] By adopting the above technical scheme, the positioning anchor rods provide support for the installation of the load-bearing rods, and at the same time the load-bearing rods provide support for the installation of the support rods. The positioning anchor rods and the load-bearing rods can provide stable support for the main beams and the secondary beams. The main beams and the secondary beams surround a mesh structure, which can provide stable support for the step plates, facilitate the operator's movements, increase the operator's working area when installing and disassembling the superstructure, increase the overall stability of the device, and facilitate the operator to perform subsequent related operations.

[0008] Optionally, two ends of the tread are respectively provided with a positioning hole and a positioning block, the positioning block and the tread are fixedly connected, and the positioning hole is used to accommodate the positioning block.

[0009] By adopting the above technical solution, when splicing the treads, the operator only needs to connect two adjacent treads through the positioning blocks and the positioning grooves to complete the splicing of the two treads, thereby increasing the walking range of the operator.

[0010] Optionally, the main beam and the secondary beam are both made of No. 16 channel steel, and the positioning anchor rods are made of hot-dip galvanized steel pipes.

[0011] By adopting the above technical solution, the main beam and secondary beam are made of 16-gauge channel steel, which can take into account both strength and positiveness, and at the same time enhance the overall rigidity. The positioning anchor rod is made of hot-dip galvanized steel, which can ensure sufficient bearing capacity and durability.

[0012] Optionally, a positioning assembly is provided at one end of the positioning anchor rod close to the wall, the positioning assembly includes a positioning assembly, the positioning assembly includes a fixing nail, the fixing nail is coaxially provided with a support groove, the side wall of the fixing nail is circumferentially evenly provided with a plurality of through grooves, a conical abutment rod is provided in the support groove, the abutment rod can slide along the axial direction of the support groove, a fixing rod is provided in the inner cavity of the through groove, the fixing rod elastically slides along the axial direction of the through groove, and the fixing rod abuts against the abutment rod.

[0013] By adopting the above technical solution, when fixing the positioning anchor rod, the operator first inserts the fixing nail into the corresponding position of the wall. The support groove provides support for the insertion of the abutment rod, and the through groove provides a limit for the sliding of the fixing rod. The abutment rod is tapered, so that the fixing rod can be pushed out along the through groove and abut against the corresponding position of the wall, thereby further locating the position of the fixing nail and further fixing the position of the positioning anchor rod.

[0014] Optionally, the positioning anchor rod is provided with a mounting plate, the mounting plate is fixedly connected with at least one fixing nail, each fixing nail is provided with an adjusting bolt, the adjusting bolt is threadedly connected to the mounting plate, and the adjusting bolt is fixedly connected to the abutment rod.

[0015] By adopting the above technical solution, the mounting plate can increase the contact area between the positioning anchor rod and the wall. At the same time, the mounting plate provides support for the installation of the fixing nails and also provides support for the installation of the adjusting bolts. The operator can rotate the adjusting bolts to drive the abutment rod to slide along the axial direction of the support groove, thereby driving the fixing rod to slide along the through groove.

[0016] Optionally, the fixing nail is provided with a limiting groove on the side wall of the through groove, an elastic rod is provided in the limiting groove, and two ends of the elastic rod are fixedly connected to the fixing nail and the fixing rod respectively.

[0017] By adopting the above technical solution, the setting of the limit groove provides support for the installation of the elastic rod. The setting of the elastic rod can make the fixed rod slide elastically along the through groove, so that when the operator withdraws the abutment rod from the support groove, the fixed rod can be retracted to the side close to the support groove, which is convenient for the operator to remove the positioning nail.

[0018] Optionally, an end surface of the fixing rod away from the abutting rod is provided with an abutting plate, and an end surface of the abutting plate away from the fixing rod is provided with plug-in blocks arranged in an array.

[0019] By adopting the above technical solution, the abutment plate can effectively increase the contact area between the fixing rod and the wall, further improving the contact area between the fixing rod and the wall. The setting of the plug-in block can make the plug-in block located inside the wall surface, further improving the connection stability between the fixing nail and the wall, and providing stable positioning support for the positioning anchor rod.

[0020] Optionally, the barrier net and the main beam are rotatably connected; A material bearing device is provided under the main beam, and the material bearing device includes a load-bearing plate and an adjusting rod. The load-bearing plate can slide along the main beam in a direction perpendicular to the wall surface, the tread plate is provided with a vertical groove, the adjusting rod is passed through the vertical groove, the adjusting rod is provided with an adjusting groove, a support shaft is provided in the adjusting groove, the support shaft is passed through the adjusting groove, the support shaft can slide along the adjusting groove and is rotatably connected along the adjusting rod, the support shaft is fixedly connected to the tread plate, and the adjusting rod is rotatably connected to the load-bearing plate.

[0021] By adopting the above technical solution, the setting of the material bearing device can play a certain supporting role for the materials used when installing or disassembling the superstructure. The operator can first rotate the adjusting rod along the rotating axis and press the adjusting rod at the same time to transform the position of the rotating axis along the adjusting groove, thereby changing the position of the adjusting rod relative to the step plate and pushing the load-bearing plate out to carry out the material bearing operation.

[0022] Optionally, limit bars are provided on both sides of the load-bearing plate, the limit bars are fixedly connected to the main beam, and the load-bearing plate slides along the limit bars, and the load-bearing plate is rotatably connected to a plurality of balls, the balls are rotatably connected to the load-bearing plate, and the balls abut against the limit bars.

[0023] By adopting the above technical solution, the setting of the limit strip can provide support for the load-bearing plate and limit the sliding direction of the load-bearing plate to prevent the sliding plate from falling. The setting of the ball bearing can effectively reduce the friction between the load-bearing plate and the limit plate, making it easier for the operator to slide the load-bearing plate out.

[0024] Optionally, a non-slip pad is fixedly connected to the top wall of the tread.

[0025] By adopting the above technical solution, the provision of the anti-skid pad can further improve the friction on the surface of the step board, provide stable support for people to walk, and prevent operators from slipping on the step board and causing danger.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting up the frame structure, the possible safety accident rate during the erection and dismantling of the cantilever frame is significantly reduced, and the safety management level of the construction site is improved; 2. By setting a locking device, it is convenient for operators to fix the fixing nails to the corresponding position of the wall; 3. By setting up a material receiving device, it is convenient for operators to store the materials used for installation and disassembly, and it is convenient for operators to carry out subsequent related operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of the first viewing angle of an embodiment of the present application; Figure 2 It is a schematic diagram of the structure of the second viewing angle of the embodiment of the present application; Figure 3 is a schematic diagram of the step plate structure; Figure 4 is a schematic diagram of the locking device structure; Figure 5 is a schematic cross-sectional view of a locking device; Figure 6 yes Figure 5 The enlarged schematic diagram of part A in the middle; Figure 7 It is a schematic diagram of the adjusting rod structure.

[0028] Reference numerals: 1, frame structure; 11, shaping bracket; 111, positioning anchor rod; 112, load-bearing rod; 113, support rod; 12, main beam; 13, secondary beam; 14, step board; 141, positioning hole; 142, positioning block; 143, anti-slip pad; 2, locking device; 21, mounting plate; 22, positioning assembly; 221, fixing nail; 222, supporting groove; 223, through groove; 224, adjusting bolt; 225, Abutment rod; 226, limiting groove; 27, locking piece; 271, fixing rod; 272, abutment plate; 273, elastic rod; 274, limiting block; 28, plug-in block; 3, protective device; 31, guardrail assembly; 311, mounting rod; 312, blocking net; 313, mounting ring; 314, standing area; 32, protective net; 4, material bearing device; 41, load-bearing plate; 42, limiting strip; 43, adjusting rod; 44, supporting shaft. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-7 This application is described in further detail.

[0030] The embodiment of the present application discloses a safe operation platform for erecting and dismantling a cantilever frame.

[0031] Reference Figure 1 A cantilever frame erection and dismantling safety operation platform comprises a frame structure 1, a locking device 2, a protective device 3 and a material bearing device 4.

[0032] Reference Figure 2 The frame structure 1 includes a shaping bracket 11. In this embodiment, a plurality of shaping brackets 11 are provided, and the plurality of shaping brackets 11 are arranged at intervals along the wall surface in the horizontal direction. The shaping bracket 11 includes a positioning anchor rod 111, a load-bearing rod 112, and a support rod 113. The positioning anchor rod 111 is vertically arranged, and the long side direction of the positioning anchor rod 111 is parallel to the wall surface, and the positioning anchor rod 111 is fixed to the corresponding position of the wall. The load-bearing rod 112 is horizontally arranged, and the long side direction of the load-bearing rod 112 is perpendicular to the wall, and the load-bearing rod 112 is fixedly connected to the middle part of the positioning anchor rod 111 by means of a clamp. In this embodiment, a plurality of support rods 113 are provided, and the plurality of support rods 113 are arranged in sequence along the long side direction of the load-bearing rod 112. The support rod 113 is vertically arranged, and the support rod 113 is fixedly connected to the load-bearing rod 112 by means of a clamp connection. Here, the top of the positioning anchor rod 111 and the top of the load-bearing rod 112 are located in the same horizontal plane.

[0033] Reference Figure 2 The positioning anchor rod 111, the load-bearing rod 112 and the support rod 113 are all made of hot-dip galvanized steel pipes with a diameter of 48 mm and a wall thickness of 3.5 mm.

[0034] Reference Figure 2The frame structure 1 also includes a plurality of main beams 12. In this embodiment, the long side direction of the main beam 12 is horizontal and parallel to the wall. The plurality of main beams 12 are arranged in sequence along the long side direction of the load-bearing rod 112. The main beam 12 is fixedly connected to the positioning anchor rod 111 and / or the support rod 113 by screws.

[0035] Reference Figure 2 The main beam 12 uses channel steel with specification of No. 16.

[0036] Reference Figure 2 The frame structure 1 further includes a secondary beam 13. A plurality of secondary beams 13 are provided between two adjacent main beams 12. The plurality of secondary beams 13 are arranged in sequence along the long side direction of the main beam 12. The secondary beams 13 are arranged horizontally. The long side direction of the secondary beams 13 is parallel to the long side direction of the load-bearing rod 112. Both ends of the secondary beams 13 are fixedly connected to the two main beams 12 by welding. The main beams 12 and the secondary beams 13 together form a rectangular grid device.

[0037] Reference Figure 2 The secondary beam 13 also uses the same No. 16 channel steel as the main beam 12.

[0038] Reference Figure 2 and Figure 3 The frame structure 1 further includes a plurality of treads 14, which are arranged in sequence along the long side direction of the main beam 12. In this embodiment, the treads 14 are rectangular plates, which are arranged horizontally. The treads 14 are perpendicular to the two end faces of the wall and are respectively provided with positioning holes 141 and positioning blocks 142. The positioning blocks 142 are fixedly connected to the treads 14 by welding, and the positioning holes 141 are used to accommodate the positioning blocks 142. The bottom wall of the treads 14 is fixedly connected to the main beam 12 and / or the secondary beam 13 by screws. The top wall of the treads 14 is paved with anti-skid pads 143, which are fixedly connected to the treads 14 by screws. In this embodiment, the length of the treads 14 perpendicular to the wall is about 600 mm.

[0039] Reference Figure 2 The tread plate 14 is preferably a patterned steel plate or an aluminum mesh plate with a thickness of not less than 4 mm.

[0040] Reference Figure 4 A locking device 2 is provided at one end of each positioning anchor rod 111 close to the wall, and the locking device 2 includes a mounting plate 21, and the mounting plate 21 is perpendicular to the positioning anchor rod 111. The mounting plate 21 is fixedly connected to the positioning anchor rod 111 by welding. In this embodiment, the mounting plate 21 is preferably a rectangular plate, and a through hole is provided at each corner of the mounting plate 21. The axial direction of the through hole is perpendicular to the mounting plate 21, and the through hole passes through the mounting plate 21.

[0041] Reference Figure 4 , Figure 5 and Figure 6 Each through hole is provided with a positioning assembly 22, and the positioning assembly 22 includes a fixing nail 221. In this embodiment, the fixing nail 221 is preferably a conical nail, and the wall is provided with a mounting hole for each fixing nail 221, and the mounting hole is used to accommodate the fixing nail 221. The large end of the fixing nail 221 is fixedly connected to the mounting plate 21 by welding, and the large end of the fixing nail 221 is coaxially provided with a support groove 222, and the side wall of the fixing nail 221 is uniformly provided with a plurality of through grooves 223 along the circumferential direction of the axis, and the inner cavities of the support groove 222, the through hole and the through groove 223 are connected.

[0042] Reference Figure 4 , Figure 5 and Figure 6 The positioning assembly 22 further includes an adjusting bolt 224 and an abutting rod 225. The adjusting bolt 224 is inserted into the through hole, and the adjusting bolt 224 is threadedly connected to the mounting plate 21. The abutting rod 225 is located in the supporting groove 222. In this embodiment, the abutting rod 225 is preferably a round rod, and the abutting rod 225 is preferably a conical block. The abutting rod 225 and the adjusting bolt 224 are coaxially arranged, and the abutting rod 225 is fixedly connected to the adjusting bolt 224 by welding.

[0043] Reference Figure 4 , Figure 5 and Figure 6 The fixing nail 221 is provided with a limiting groove 226 on the side wall of each through slot 223. The long side direction of the limiting groove 226 is parallel to the opening direction of the through slot 223, and the limiting groove 226 is connected to the inner cavity of the through slot 223. The inner cavity of each limiting groove 226 is provided with a locking member 27, which includes a fixing rod 271, an abutting plate 272, an elastic rod 273 and a limiting block 274. The fixing rod 271 is penetrated through the through slot 223 and can slide along the through slot 223. The fixing rod 271 can abut against the side wall of the abutting rod 225. The abutting plate 272 is perpendicular to the fixing rod 271, and the abutting plate 272 is fixedly connected to the end of the fixing rod 271 away from the abutting rod 225 by welding. The elastic rod 273 and the limit block 274 are both located in the inner cavity of the limit slot 226, the axial direction of the elastic rod 273 is parallel to the long side direction of the limit slot 226, and the two ends of the elastic rod 273 are fixedly connected to the fixing nail 221 and the limit block 274 by screws, so that the limit block 274 can slide elastically along the long side direction of the limit slot 226, and the limit block 274 is fixedly connected to the fixing rod 271 by screws.

[0044] Reference Figure 4 , Figure 5 and Figure 6The end surface of the abutment plate 272 away from the fixing rod 271 is provided with a plurality of plug-in blocks 28. In this embodiment, the plug-in blocks 28 are preferably right-angled triangle blocks, wherein one right-angle side of the abutment block is attached to the abutment plate 272, and the other right-angle side is located on the side of the hypotenuse close to the opening of the mounting hole. The plurality of plug-in blocks 28 are arranged in a plane array along the abutment plate 272.

[0045] Reference Figure 1 The protective device 3 is installed on the main beam 12 away from the wall. The protective device 3 includes a plurality of guardrail assemblies 31. The plurality of guardrail assemblies 31 are arranged at intervals along the long side direction of the main beam 12. The guardrail assemblies 31 include mounting rods 311 and blocking nets 312. In this embodiment, the number of mounting rods 311 is preferably two. The two mounting rods 311 are arranged at intervals along the long side direction of the main beam 12. The long side direction of the mounting rods 311 is perpendicular to the main beam 12. The mounting rods 311 are provided with mounting rings 313 at one end close to the main beam 12. The mounting rings 313 are sleeved on the main beam 12 and fixedly connected to the main beam 12. In this embodiment, the blocking net 312 has a certain elasticity. The blocking net 312 is arranged horizontally. One end of the blocking net 312 is fixedly connected to the mounting rod 311 by screws, and the other end is detachably connected to another mounting rod 311 by hooks.

[0046] Reference Figure 1 The stepping plate 14, the wall and the barrier net 312 together enclose a standing area 314.

[0047] Reference Figure 1 The mounting ring 313 is provided with a top screw in the inner cavity of the standing section 314 , the top screw is passed through the mounting ring 313 , the top screw is threadedly connected to the mounting ring 313 , and the top screw abuts against the side wall of the main beam 12 after passing through the mounting ring 313 .

[0048] Reference Figure 1 A protective net 32 ​​is provided between two adjacent guardrail assemblies 31. In this embodiment, the protective net 32 ​​is preferably a fan-shaped net, and the protective net 32 ​​has a certain elasticity. The two side walls of the protective net 32 ​​are fixedly connected to the two adjacent mounting rods 311 respectively.

[0049] Reference Figure 1 , Figure 2 and Figure 7, there are multiple material bearing devices 4, which are located below the main beam 12 and the secondary beam 13, and are arranged at intervals along the horizontal direction of the wall. The material bearing device 4 includes a load-bearing plate 41 and a limit bar 42. In this embodiment, the load-bearing plate 41 is preferably a rectangular plate, and the load-bearing plate 41 is horizontally arranged. In this embodiment, the number of limit bars 42 is preferably two, and the two limit bars 42 are symmetrically arranged along the long side direction of the load-bearing plate 41. The limit bars 42 are preferably L-shaped rods, and the limit bars 42 are fixedly connected to the main beam 12 by welding. And the long side direction of the limit bar 42 is parallel to the long side direction of the load-bearing plate 41, and the load-bearing plate 41 is located on the inner side of the limit bar 42. The bottom wall of the load-bearing plate 41 is provided with a plurality of balls, and the balls can be rotatably connected along the load-bearing plate 41, and the balls abut against the top wall of the horizontal section of the limit bar 42.

[0050] Reference Figure 1 , Figure 2 and Figure 7 Each material bearing device 4 is provided with a vertical slot on the step plate 14, and the material bearing device 4 also includes an adjusting rod 43 and a supporting shaft 44. The adjusting rod 43 is inserted into the vertical slot, and the adjusting rod 43 is provided with an adjusting slot along the long side direction, and the supporting shaft 44 is located in the vertical slot, and the supporting shaft 44 is inserted into the adjusting slot, and the two ends of the supporting shaft 44 are respectively fixedly connected to the step plate 14 by welding. The adjusting rod 43 is rotatably connected to the bearing plate 41 through a hinge seat.

[0051] The implementation principle of a cantilever frame erection and dismantling safety operation platform in an embodiment of the present application is as follows: the operator first determines the relevant position of the positioning anchor rod 111 according to the wall and drills holes, then places the positioning anchor rod 111 in the corresponding hole position by a crane, connects the main beam 12 and the secondary beam in sequence, and completes the installation of the step board 14 at the same time, so that the operator can walk on the step board 14 conveniently.

[0052] When installing the positioning anchor rod 111, the operator inserts the fixing nail 221 into the relevant hole, and then rotates the adjusting bolt 224 to make the abutment rod 225 slide along the support groove 222, and then make the fixing rod 271 slide along the through groove 223, and make the plug-in block 28 and the abutment plate 272 abut against the wall, thereby ensuring a stable connection between the fixing nail 221 and the wall.

[0053] When the operator needs to store the relevant installation and disassembly materials, he opens the blocking net 312, and then presses and rotates the adjusting rod 43 to make the load-bearing plate 41 slide along the limiting strip 42. At this time, the protective net 32 ​​can effectively prevent the materials and operators from falling, thereby improving the overall safety.

[0054] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the device, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cantilever frame erection and dismantling safety operation platform, characterized by: The invention comprises a frame structure (1), wherein the frame structure (1) comprises a plurality of shaping brackets (11), a main beam (12) and a secondary beam (13), and the shaping brackets (11) are arranged at intervals in the horizontal direction, and the shaping brackets (11) comprise positioning anchor rods (111), load-bearing rods (112) and a plurality of support rods (113), wherein the positioning anchor rods (111) are fixed to corresponding positions of the wall, the load-bearing rods (112) are horizontal and fixedly connected to the positioning anchor rods (111), and a plurality of support rods (113) are provided, and the support rods (113) are vertical and fixedly connected to the load-bearing rods (112) at intervals; The main beam (12) and the secondary beam (13) are provided in plurality and enclose a mesh structure, and the main beam (12) and the secondary beam (13) are fixedly connected to the positioning anchor rod (111) and / or the support rod (113); A plurality of tread plates (14) are fixedly connected to the tops of the main beam (12) and the secondary beam (13); The main beam (12) is installed with a blocking net (312).

2. A cantilever frame erection and dismantling safety operation platform according to claim 1, characterized in that: Two ends of the tread plate (14) are respectively provided with a positioning hole (141) and a positioning block (142); the positioning block (142) and the tread plate (14) are fixedly connected; and the positioning hole (141) is used to accommodate the positioning block (142).

3. The cantilever frame erection and dismantling safety operation platform according to claim 1 is characterized by: The main beam (12) and the secondary beam (13) are both made of No. 16 channel steel, and the positioning anchor rod (111) is made of hot-dip galvanized steel pipe.

4. The cantilever frame erection and dismantling safety operation platform according to claim 1 is characterized by: A positioning assembly (22) is provided at one end of the positioning anchor rod (111) close to the wall, the positioning assembly (22) comprises a positioning assembly (22), the positioning assembly (22) comprises a fixing nail (221), the fixing nail (221) is coaxially provided with a supporting groove (222), a plurality of through grooves (223) are evenly distributed on the side wall of the fixing nail (221) in the circumferential direction, a conical abutting rod (225) is provided in the supporting groove (222), the abutting rod (225) can slide along the axial direction of the supporting groove (222), a fixing rod (271) is provided in the inner cavity of the through groove (223), the fixing rod (271) elastically slides along the axial direction of the through groove (223), and the fixing rod (271) abuts against the abutting rod (225).

5. A cantilever frame erection and dismantling safety operation platform according to claim 4, characterized in that: The positioning anchor rod (111) is provided with a mounting plate (21), the mounting plate (21) is fixedly connected with at least one fixing nail (221), each fixing nail (221) is provided with an adjusting bolt (224), the adjusting bolt (224) and the mounting plate (21) are threadedly connected, and the adjusting bolt (224) and the abutment rod (225) are fixedly connected.

6. The cantilever frame erection and dismantling safety operation platform according to claim 4 is characterized by: The fixing nail (221) is provided with a limiting groove (226) on the side wall of the through groove (223), an elastic rod (273) is provided in the limiting groove (226), and two ends of the elastic rod (273) are respectively fixedly connected to the fixing nail (221) and the fixing rod (271).

7. The cantilever frame erection and dismantling safety operation platform according to claim 4 is characterized by: An end surface of the fixing rod (271) away from the abutment rod (225) is provided with an abutment plate (272), and an end surface of the abutment plate (272) away from the fixing rod (271) is provided with plug-in blocks (28) arranged in an array.

8. The cantilever frame erection and dismantling safety operation platform according to claim 1 is characterized by: The blocking net (312) and the main beam (12) are rotatably connected; A material bearing device (4) is provided below the main beam (12), and the material bearing device (4) comprises a load-bearing plate (41) and an adjusting rod (43). The load-bearing plate (41) can slide along the main beam (12) in a direction perpendicular to the wall surface. The stepping plate (14) is provided with a vertical groove. The adjusting rod (43) is inserted into the vertical groove. The adjusting rod (43) is provided with an adjusting groove. A support shaft (44) is provided in the adjusting groove. The support shaft (44) is inserted into the adjusting groove. The support shaft (44) can slide along the adjusting groove and is rotatably connected along the adjusting rod (43). The support shaft (44) is fixedly connected to the stepping plate (14), and the adjusting rod (43) is rotatably connected to the load-bearing plate (41).

9. The cantilever frame erection and dismantling safety operation platform according to claim 8, characterized in that: Limiting strips (42) are provided on both sides of the load-bearing plate (41); the limiting strips (42) are fixedly connected to the main beam (12), and the load-bearing plate (41) slides along the limiting strips (42); the load-bearing plate (41) is rotatably connected to a plurality of balls, the balls are rotatably connected to the load-bearing plate (41), and the balls abut against the limiting strips (42).

10. The cantilever frame erection and dismantling safety operation platform according to claim 1 is characterized by: The top wall of the tread plate (14) is fixedly connected with an anti-slip pad (143).

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