A type of cantilevered scaffold that is easy to assemble and disassemble

Abstract

This invention relates to the field of building construction technology, specifically to a cantilevered scaffold that is easy to assemble and disassemble. It includes multiple I-beams serving as cantilever main beams. The portions of the I-beams extending beyond the floor slab are vertically and spacedly connected to a pair of bases by screws. The I-beams are then fixed in place by bolts and holes, providing advantages such as easy assembly and disassembly, and adjustable erection areas. The bases are attached to the floor slab and wall surface; when subjected to force, they push against the floor slab and wall, generating a reaction force that pulls on the I-beams. This gives the I-beams a forward-moving force, allowing the bolts to act as a buffer, reducing the likelihood of the I-beams twisting and tilting under load, thus preventing them from being pulled upwards. This increases the bolts' fixing effect on the I-beams, reduces the probability of bolts being pulled out of the floor slab, and ultimately increases the stability of the scaffold.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically a cantilevered scaffold that is easy to assemble and disassemble. Background Technology

[0002] Cantilevered scaffolding is a type of scaffolding mainly used for exterior walls, interior decoration, or places with high ceilings where direct construction is not possible.

[0003] Traditional cantilever scaffolding requires pre-installing U-shaped anchor bolts on the lower layer of reinforcing steel at designated floor slab locations. The quantity and joint details of these anchor bolts must be verified. Two additional reinforcing bars are then added to the U-shaped anchor bolts before concrete is poured. Finally, steel plates are used in conjunction with the reinforcing bars to secure the I-beams as the cantilever main beam. Only then can the uprights be installed on the cantilever main beam to complete the scaffolding construction. Pre-embedding the U-shaped anchor bolts and reinforcing bars not only requires significant manpower to calculate and determine the installation location of the cantilever scaffolding in advance, but also... The inconvenience of adjusting the position of the anchor bolts and reinforcing bars after installation is significant. Furthermore, during the subsequent dismantling of the cantilevered scaffolding, since the U-shaped anchor bolts and reinforcing bars are cast into the floor slab, they cannot be directly removed. Instead, the exposed parts of the U-shaped anchor bolts and reinforcing bars must be cut or buried to prevent them from affecting subsequent construction. Therefore, traditional cantilevered scaffolding presents inconveniences in actual dismantling and assembly, resulting in time-consuming and labor-intensive dismantling and assembly processes, which affects construction efficiency. Summary of the Invention

[0004] To address the aforementioned problems, the present invention provides the following technical solution: a cantilevered scaffold that is easy to assemble and disassemble, comprising multiple I-beams serving as cantilever main beams, wherein the portion of the I-beams extending to the outside of the floor slab is vertically and spacedly connected to a pair of bases by screws, the portion of the I-beams inside the floor slab is vertically provided with multiple bolts for connecting to the floor slab, a sliding member is slidably connected to the inner surface of the I-beams, and symmetrically arranged abutments are fixedly connected to the bottom of the sliding member, and a platform assembly for forming a multi-layer cantilevered platform is provided on the base.

[0005] Preferably, the platform assembly includes a plurality of columns arranged in sequence. The bottom of the upper column is inserted into the top of the lower column, and the bottom of the lowest column is inserted into the base. The outer wall of the base has a first fixing groove through which it passes. The lower outer wall of the column has a second fixing groove through which it passes. The upper outer wall of the column has a third fixing groove through which it passes. Connecting columns are inserted between the first fixing groove and the second fixing groove, and between the second fixing groove and the third fixing groove. Both ends of the connecting columns are tenoned with bearing columns, and the ends of adjacent bearing columns are threaded together. Scaffold boards are provided on the bearing columns.

[0006] Preferably, the abutment has an oil storage tank inside, a push plate is slidably connected to the inner wall of the oil storage tank, a first pressure spring is fixedly connected to the inner wall of the oil storage tank, the other end of the first pressure spring abuts against the outer wall of the push plate, and a plurality of abutment rods are provided on the outer wall of the abutment, one end of the abutment rods passing through the outer wall of the abutment into the oil storage tank and slidably connected to the inner wall of the abutment at the point of penetration.

[0007] Preferably, the outer wall of the connecting column is provided with a pair of locking holes, the interior of the supporting column is provided with a storage groove, the top inner wall of the storage groove is provided with a linkage column, one end of the linkage column penetrates the top inner wall of the storage groove to the outside of the supporting column and is slidably connected to the inner wall of the penetrating part of the supporting column, the other end of the linkage column is fixedly connected to an inclined linkage plate, the inner wall of the storage groove is provided with a locking column, one end of the locking column penetrates the inner wall of the storage groove to the outside of the supporting column and is slidably connected to the inner wall of the penetrating part of the supporting column, and extends into the locking hole, and the other end of the locking column can be pushed by its inclined end wall when the linkage plate descends, the outer wall of the locking column is fitted with a second pressure spring, and the other end of the second pressure spring abuts against the inner wall of the storage groove.

[0008] Preferably, the supporting column is provided with a limiting groove, and the scaffold board is placed in the limiting groove.

[0009] Preferably, a tension spring is fitted on the outer wall of the linkage column, and the other end of the tension spring is fixedly connected to the top inner wall of the storage groove, and the bottom of the scaffold board can push the top of the linkage column.

[0010] Preferably, the scaffold boards are folded.

[0011] Preferably, the bottom of the scaffold board is fixedly connected to a plurality of strong magnets, and the strong magnets can magnetically attract the supporting column.

[0012] Preferably, the end of the locking pin that can be pushed by the linkage plate is arc-shaped.

[0013] Preferably, a stop block is fixedly connected to the inner surface of the I-beam, and the end wall of the stop block can contact the end wall of the sliding member.

[0014] The technical effects and advantages of this invention are as follows:

[0015] 1. This invention involves creating holes in the floor slab where cantilevered scaffolding needs to be erected, and fixing I-beams to the holes with bolts. This provides advantages such as easy assembly and disassembly, and the ability to freely adjust the erection area. Furthermore, the abutment is attached to the floor slab wall, and when the abutment is subjected to force, it pushes against the floor slab wall and generates a reaction force. This reaction force exerts a pulling effect on the I-beam, giving it a certain forward movement force. This allows the bolts to act as a buffer against the I-beam, reducing the upward pulling effect on the bolts when the I-beam twists and tilts under load. This increases the fixing effect of the bolts on the I-beam, reduces the probability of the bolts being pulled out of the floor slab by the I-beam, and thus increases the stability of the scaffolding.

[0016] 2. When the platform components are erected after the I-beams are fixed, the disassembly and assembly can be completed by simply disassembling and assembling the scaffold boards, bearing columns, connecting columns and uprights in sequence. This makes the installation and disassembly of the overall cantilever scaffolding simple and convenient, and the combined platform does not require any additional fixing accessories.

[0017] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description and the drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 This is a partial sectional view of the connecting column in this invention;

[0021] Figure 3 yes Figure 2 Enlarged view of section A in the image;

[0022] Figure 4 This is a partial sectional view of the column in this invention;

[0023] Figure 5 This is a cross-sectional view of the oil storage tank in this invention;

[0024] Figure 6 This is a structural diagram of the scaffolding board in this invention.

[0025] In the diagram: 1. I-beam; 2. Base; 3. Bolt; 4. Sliding component; 5. Abutment; 6. Column; 7. First fixing groove; 8. Second fixing groove; 9. Third fixing groove; 10. Connecting column; 11. Bearing column; 12. Scaffold board; 13. Oil reservoir; 14. Push plate; 15. First pressure spring; 16. Abutment rod; 17. Lock hole; 18. Storage groove; 19. Linkage column; 20. Linkage plate; 21. Locking column; 22. Second pressure spring; 23. Limiting groove; 24. Tension spring; 25. Strong magnet; 26. Stop block. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on 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.

[0027] In the description of this invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, in the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] like Figures 1 to 6 As shown; a cantilevered scaffold that is easy to assemble and disassemble includes multiple I-beams 1 used as cantilever main beams. The portion of the I-beams 1 extending to the outside of the floor slab is vertically and spacedly fixedly connected to a pair of bases 2 by screws. The portion of the I-beams 1 inside the floor slab is vertically provided with multiple bolts 3 for connecting to the floor slab. The inner surface of the I-beams 1 is slidably connected with sliding parts 4. The bottom of the sliding parts 4 is fixedly connected with symmetrically arranged abutments 5. The bases 2 are provided with platform components for forming a multi-layer cantilevered platform.

[0029] The platform assembly includes a plurality of columns 6 arranged in sequence. The bottom of the upper column 6 is inserted into the top of the lower column 6, and the bottom of the lowermost column 6 is inserted into the base 2. The outer wall of the base 2 has a first fixing groove 7 through which it passes. The lower outer wall of the column 6 has a second fixing groove 8 through which it passes. The upper outer wall of the column 6 has a third fixing groove 9 through which it passes. Connecting columns 10 are inserted between the first fixing groove 7 and the second fixing groove 8, and between the second fixing groove 8 and the third fixing groove 9. Both ends of the connecting columns 10 are tenoned with bearing columns 11, and the ends of adjacent bearing columns 11 are threaded together. Scaffold boards 12 are provided on the bearing columns 11.

[0030] In use, holes are drilled in the floor slab where the cantilevered scaffolding needs to be erected. Bolts 3 are then used to fix the I-beam 1 to the holes, allowing for free adjustment of the erection area. The abutment 5 is flush with the floor slab wall. If the I-beam 1 tilts, it compresses the abutment 5. After bearing weight, the end of the I-beam 1 closest to the abutment 5 begins to bear force. The abutment 5, under this force, pushes against the floor slab wall and generates a reaction force. This reaction force pulls on the I-beam 1, giving it a certain forward movement force. This allows the bolts 3 to hold the I-beam in place. 1 acts as a baffle, thereby reducing the upward pulling effect of the I-beam 1 on the bolt 3 after it twists and tilts under load, thus increasing the fixing effect of the bolt 3 on the I-beam 1 and reducing the probability of the bolt 3 being pulled out of the floor by the I-beam 1, thereby increasing the stability of the cantilever scaffold. In addition, the sliding part 4 is slidably connected to the I-beam 1. Workers can adjust the length of the I-beam 1 extending outside the floor by sliding the position of the sliding part 4 on the I-beam 1, thereby adjusting the distance between the combined platform and the outer wall of the floor, thus facilitating the construction of the outer wall.

[0031] After the I-beam 1 is fixed, when erecting the platform components, simply insert the uprights 6 into the base 2, and according to the required erection height, insert multiple uprights 6 in sequence on the bottom upright 6 so that the height of the uprights 6 meets the required erection height. Then, insert the connecting columns 10 into the overlapping first fixing slot 7 and second fixing slot 8, as well as the overlapping second fixing slot 8 and third fixing slot 9, so that the connecting columns 10 fix the uprights 6, making the uprights 6 impossible to remove. The load-bearing columns 11 are threaded together. At this time, according to the required length of the scaffolding to be erected, connect the appropriate number of load-bearing columns 11 together. Since the connecting columns 10 and the load-bearing columns 11 are set with tenon joints, the load-bearing columns 11 are fastened to the connecting columns 10 to complete the tenon joint. At this time, the erection of the load-bearing columns 11 on the connecting columns 10 provides a bracing reinforcement for the uprights 6, thereby increasing the stability of the uprights 6 as the main beam of the platform components. Scaffold boards 12 are laid on the load-bearing plates to complete the installation of the overall cantilevered scaffolding.

[0032] When dismantling is required, the combined platform is disassembled first. Similarly, during dismantling, the scaffold boards 12, the load-bearing columns 11, the connecting columns 10, and the uprights 6 are removed in sequence, and the bolts 3 are removed to complete the dismantling of the entire cantilevered scaffold. This makes the installation and dismantling of the entire cantilevered scaffold simple and convenient. In addition to the bolts 3 used to install the I-beams 1, the combined platform does not require any additional fixing accessories.

[0033] like Figure 5 As shown; the inside of the abutment 5 is provided with an oil storage tank 13, the inner wall of the oil storage tank 13 is slidably connected with a push plate 14, the inner wall of the oil storage tank 13 is fixedly connected with a first pressure spring 15, the other end of the first pressure spring 15 abuts against the outer wall of the push plate 14, the outer wall of the abutment 5 is provided with a plurality of abutment rods 16, one end of the abutment rod 16 penetrates the outer wall of the abutment 5 into the oil storage tank 13 and is slidably connected to the inner wall of the abutment 5 at the penetration point;

[0034] In use, due to the different architectural styles, some floor slabs and exterior walls have uneven edges, etc. By setting up the abutment rod 16, when the abutment 5 moves towards the exterior wall of the floor slab, the abutment rod 16 first contacts the exterior wall of the floor slab. As the abutment 5 moves, the abutment rod 16 is blocked by the exterior wall of the floor slab and begins to move into the oil storage tank 13. This causes the abutment rod 16 to start to squeeze the hydraulic oil inside the oil storage tank 13. As the hydraulic oil is squeezed, the hydraulic oil begins to push the push plate 14, causing the push plate 14 to squeeze the first pressure spring 15 and move until it is blocked by the inner wall of the oil storage tank 13 and cannot move. At this time, because the hydraulic oil cannot be compressed, the abutment rod 16 cannot move into the oil storage tank 13. Thus, the abutment rod 16 fits against the irregular surface of the exterior wall of the floor slab and cannot move. In this way, the abutment rod 16 replaces the abutment 5 to contact and fit against the floor wall.

[0035] like Figure 2 and Figure 3 As shown; the outer wall of the connecting column 10 is provided with a pair of locking holes 17, the inside of the bearing column 11 is provided with a storage groove 18, the top inner wall of the storage groove 18 is provided with a linkage column 19, one end of the linkage column 19 penetrates the top inner wall of the storage groove 18 to the outside of the bearing column 11 and slides to connect with the inner wall of the penetrating part of the bearing column 11, the other end of the linkage column 19 is fixedly connected to the inclined linkage plate 20, the inner wall of the storage groove 18 is provided with a locking column 21, one end of the locking column 21 penetrates the inner wall of the storage groove 18 to the outside of the bearing column 11 and slides to connect with the inner wall of the penetrating part of the bearing column 11, and extends into the locking hole 17, and the other end of the locking column 21 can be pushed by the inclined end wall of the linkage plate 20 when the linkage plate 20 descends, the outer wall of the locking column 21 is fitted with a second pressure spring 22, and the other end of the second pressure spring 22 abuts against the inner wall of the storage groove 18;

[0036] In order to increase the connection strength of the tenon joint between the connecting post 10 and the bearing post 11 and increase safety, after the tenon joint between the connecting post 10 and the bearing post 11, the operator presses the linkage post 19 into the storage slot 18. At this time, the linkage post 19 will drive the linkage plate 20 to move inside the storage slot 18. As the linkage plate 20 moves, the inclined outer wall of the linkage plate 20 will push the locking post 21, so that the locking post 21 will start to move and insert into the lock hole 17, thereby fixing the linkage post 19 and the bearing post 11 and increasing the strength of the tenon joint.

[0037] When it is necessary to disassemble the connecting column 10 and the bearing column 11, simply pull the linkage column 19 upward to reset it. At this time, the linkage plate 20 moves with the linkage column 19 and resets, no longer pushing the locking column 21. Then, the locking column 21 will reset and move under the elastic force of the second pressure spring 22 and be pulled out of the lock hole 17.

[0038] like Figure 2 , Figure 3 and Figure 6 As shown, the supporting column 11 is provided with a limiting groove 23, and the scaffold board 12 is placed in the limiting groove 23;

[0039] A tension spring 24 is fitted on the outer wall of the linkage column 19. The other end of the tension spring 24 is fixedly connected to the top inner wall of the storage groove 18, and the bottom of the scaffold board 12 can push the top of the linkage column 19.

[0040] The scaffold plank 12 is folded.

[0041] The bottom of the scaffold board 12 is fixedly connected with a plurality of strong magnets 25, and the strong magnets 25 can magnetically attract the supporting column 11.

[0042] In use, the folding design of the scaffold board 12 facilitates its storage and increases convenience. The scaffold board 12 is placed in the limiting groove 23, which limits its position, increasing stability. When placed in the limiting groove 23, the bottom of the scaffold board 12 presses against the linkage column 19, causing the limiting column to automatically move into the storage groove 18, allowing the locking column 21 to insert into the locking hole 17. During disassembly, simply removing the scaffold board 12 removes the pressure from the linkage column 19, which then returns to its original position under the tension of the tension spring 24, allowing the locking column 21 to be withdrawn from the locking hole 17 without manual intervention, further enhancing convenience. Multiple strong magnets 25 at the bottom of the scaffold board 12 magnetically attract the supporting column 11, increasing stability when placed in the limiting groove 23.

[0043] like Figure 3 As shown; the end of the locking pin 21 that can be pushed by the linkage plate 20 is arc-shaped;

[0044] In use, the arc-shaped design reduces the friction of the linkage plate 20 when it pushes the linkage column 19, thereby reducing the probability of them getting stuck due to mutual wear.

[0045] like Figure 5 As shown; a stop block 26 is fixedly connected to the inner surface of the I-beam 1, and the end wall of the stop block 26 can contact the end wall of the sliding member 4;

[0046] In use, by setting the stop 26, the stop 26 can block the I-beam 1, thereby preventing the sliding part 4 from falling out of the I-beam 1.

[0047] Working principle of this invention:

[0048] Refer to the instruction manual appendix Figure 1-6As shown, holes are made in the floor slab where cantilevered scaffolding needs to be erected. Bolts 3 are used to fix the I-beam 1 to the holes, thus providing the advantage of freely adjustable erection area. The abutment 5 is attached to the floor slab wall. If the I-beam 1 tilts, it compresses the abutment 5. After bearing weight, the end of the I-beam 1 closest to the abutment 5 begins to bear force. The abutment 5, under this force, pushes against the floor slab wall and generates a reaction force. This reaction force exerts a pulling effect on the I-beam 1, giving it a certain forward movement force. This allows the bolts 3 to hold the I-beam 1 in place. It acts as a baffle, thereby reducing the upward pulling effect of the bolt 3 on the I-beam 1 after it is loaded and torsional. This increases the fixing effect of the bolt 3 on the I-beam 1 and reduces the probability of the bolt 3 being pulled out of the floor by the I-beam 1, thus increasing the stability of the cantilever scaffold. In addition, the sliding part 4 is slidably connected to the I-beam 1. Workers can adjust the length of the I-beam 1 extending outside the floor by sliding the position of the sliding part 4 on the I-beam 1, thereby adjusting the distance between the combined platform and the outer wall of the floor, which facilitates the construction of the outer wall.

[0049] After the I-beam 1 is fixed, when erecting the platform components, simply insert the uprights 6 into the base 2, and according to the required erection height, insert multiple uprights 6 in sequence on the bottom upright 6 so that the height of the uprights 6 meets the required erection height. Then, insert the connecting columns 10 into the overlapping first fixing slot 7 and second fixing slot 8, as well as the overlapping second fixing slot 8 and third fixing slot 9, so that the connecting columns 10 fix the uprights 6, making the uprights 6 impossible to remove. The load-bearing columns 11 are threaded together. At this time, according to the required length of the scaffolding to be erected, connect the appropriate number of load-bearing columns 11 together. Since the connecting columns 10 and the load-bearing columns 11 are set with tenon joints, the load-bearing columns 11 are fastened to the connecting columns 10 to complete the tenon joint. At this time, the erection of the load-bearing columns 11 on the connecting columns 10 provides a bracing reinforcement for the uprights 6, thereby increasing the stability of the uprights 6 as the main beam of the platform components. Scaffold boards 12 are laid on the load-bearing plates to complete the installation of the overall cantilevered scaffolding.

[0050] When dismantling is required, the combined platform is disassembled first. Similarly, during dismantling, the scaffold boards 12, the load-bearing columns 11, the connecting columns 10, and the uprights 6 are removed in sequence, and the bolts 3 are removed to complete the dismantling of the entire cantilevered scaffold. This makes the installation and dismantling of the entire cantilevered scaffold simple and convenient. In addition to the bolts 3 used to install the I-beams 1, the combined platform does not require any additional fixing accessories.

[0051] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cantilevered scaffold that is easy to assemble and disassemble, comprising multiple I-beams (1) used as cantilever main beams, characterized in that: The portion of the I-beam (1) extending to the outside of the floor slab is vertically and fixedly connected to a pair of bases (2) by screws at intervals. The portion of the I-beam (1) inside the floor slab is vertically provided with multiple bolts (3) for connecting to the floor slab. A sliding member (4) is slidably connected to the inner surface of the I-beam (1). A symmetrically arranged abutment (5) is fixedly connected to the bottom of the sliding member (4). A platform assembly for forming a multi-layer cantilever platform is provided on the base (2). The platform assembly includes a plurality of columns (6) arranged in sequence. The bottom of the upper column (6) is inserted into the top of the lower column (6), and the bottom of the lowermost column (6) is inserted into the base (2). The outer wall of the base (2) has a first fixing groove (7) through which it passes. The lower outer wall of the column (6) has a second fixing groove (8) through which it passes. The upper outer wall of the column (6) has a third fixing groove (9) through which it passes. The first fixing groove (7) and the second fixing groove (8) Connecting columns (10) are inserted between the second fixing groove (8) and the third fixing groove (9), and bearing columns (11) are tenoned at both ends of the connecting columns (10). The ends of adjacent bearing columns (11) are threaded together. Scaffold boards (12) are provided on the bearing columns (11). A pair of locking holes (17) are opened on the outer wall of the connecting column (10). A storage groove (18) is opened inside the bearing column (11). A linkage column (19) is provided on the top inner wall of the storage groove (18). One end of the linkage column (19) penetrates the top inner wall of the storage groove (18) to the outside of the support column (11) and slides through the inner wall of the support column (11) where it is penetrated. The other end of the linkage column (19) is fixedly connected to a linkage plate (20) with an inclined end wall. A locking column (21) is provided on the inner wall of the storage groove (18). One end of the locking column (21) penetrates the inner wall of the storage groove (18) to the outside of the support column (11) and slides through the inner wall of the support column (11) where it is penetrated, and then extends to the lock hole (17). Inside, the other end of the locking post (21) can be pushed by the inclined end wall when the linkage plate (20) descends. The outer wall of the locking post (21) is fitted with a second pressure spring (22), and the other end of the second pressure spring (22) abuts against the inner wall of the storage groove (18). The outer wall of the linkage post (19) is fitted with a tension spring (24), and one end of the tension spring (24) is fixedly connected to the top inner wall of the storage groove (18). The bottom of the scaffold board (12) can push the top of the linkage post (19).

2. The cantilevered scaffolding that is easy to assemble and disassemble according to claim 1, characterized in that: The support column (11) is provided with a limiting groove (23), and the scaffold board (12) is placed in the limiting groove (23).

3. The cantilevered scaffolding that is easy to assemble and disassemble according to claim 2, characterized in that: The scaffold plank (12) is folded.

4. A cantilevered scaffolding that is easy to assemble and disassemble according to claim 3, characterized in that: The bottom of the scaffold board (12) is fixedly connected to a plurality of strong magnets (25), and the strong magnets (25) can magnetically attract the supporting column (11).

5. A cantilevered scaffolding that is easy to assemble and disassemble according to claim 4, characterized in that: The locking pin (21) is arc-shaped at one end that can be pushed by the linkage plate (20).

6. A cantilevered scaffolding that is easy to assemble and disassemble according to claim 5, characterized in that: The inner surface of the I-beam (1) is fixedly connected to a stop (26), and the end wall of the stop (26) can contact the end wall of the sliding member (4).

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