Scaffold for building construction

Abstract

The invention relates to the technical field of building construction, and discloses a scaffold for building construction, which comprises a ladder stand main frame, a fixing plate is fixedly assembled on the outer edge, close to the bottom, of the ladder stand main frame, the inner wall of the fixing plate is rotatably sleeved with a rotating rod, and the outer edge of the rotating rod is fixedly sleeved with a limiting rod; the inner wall, close to the top, of the ladder stand main frame is slidably sleeved with a circular plate. Through cooperative use of the limiting rods and the limiting plates, when the auxiliary ladder stand frame is erected on the top of the main ladder stand frame, the outer edge of the bottom of the auxiliary ladder stand frame is slidably connected to the inner wall of the top of the main ladder stand frame in a sleeving mode and drives the abutting rods to move downwards, and therefore the outer edges of the limiting plates are driven by the abutting rods to rotate and move downwards along the inner walls of the arc-shaped grooves; the side face of the limiting plate pushes the limiting rod to rotate until the side face of the limiting plate is in butt joint with the inner wall of the limiting groove, and the adjacent side faces of the first magnet plate and the second magnet plate are attracted, so that the ladder stand main frame and the ladder stand auxiliary frame are in stable butt joint while the limiting rod is assisted to stably limit the limiting plate.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a scaffold for building construction. Background Art

[0002] Scaffolding is a temporary facility commonly used in construction projects. It mainly provides an elevated working surface for operators at height, material stacking and short-distance horizontal transportation.

[0003] During the use of traditional scaffolding, the ladder frame and the scissor-type oblique support reinforcement columns are docked and fixed by pins until the two ladder frames and the two scissor-type oblique support reinforcement columns assist in the construction of a first-story platform, and then the second-story platform is similarly erected on the top of the first-story platform. However, when the ladder frame is vertically docked, the traditional scaffolding only connects the tube and the rod, which affects the stability of the platform erection. In addition, the traditional scaffolding uses the bottom support rod of the ladder frame for single support, which affects the support stability of the platform when the user walks on the top of the platform. Summary of the invention

[0004] The present invention provides a scaffold for building construction to solve the problems raised by the above background technology.

[0005] The present invention provides the following technical solution: a scaffold for building construction, comprising a ladder main frame, wherein the outer edge of the ladder main frame near the bottom is fixedly equipped with a fixing plate, the inner wall of the fixing plate is rotatably sleeved with a rotating rod, the outer edge of the rotating rod is fixedly sleeved with a limiting rod, the inner wall of the ladder main frame near the top is slidably sleeved with a circular plate, the top of the circular plate is rotatably connected to the limiting plate, the top of the ladder main frame is provided with an arc-shaped groove, and the inner wall of the arc-shaped groove is slidably connected to the outer edge of the limiting plate, the top of the limiting plate is fixedly equipped with an abutment rod, the inner wall of the bottom of the ladder main frame is slidably sleeved with a linkage rod, and the inner wall of the ladder main frame is fixedly equipped with an airbag.

[0006] As a preferred technical solution of the present invention, the inner wall of the ladder main frame near the bottom is fixedly sleeved with a bottom plate, the bottom of the bottom plate is fixedly connected with a spring 1, the bottom of the spring 1 is fixedly connected to the top of the linkage rod, and the inner wall of the bottom plate is fixedly sleeved with a connecting pipe.

[0007] As a preferred technical solution of the present invention, the bottom of the base plate, the inner wall of the ladder main frame and the top of the linkage rod form a accommodating chamber, the outer edge of the connecting tube is fixedly sleeved with the inner wall of the airbag, and the inner cavity of the airbag passes through the inner wall of the connecting tube and is connected with the inner cavity of the accommodating chamber, and the inner wall of the ladder main frame is fixedly sleeved with a transmission tube.

[0008] As a preferred technical solution of the present invention, a docking sleeve is fixedly installed on the outer edge of the ladder main frame, a positioning rod is slidably sleeved on the inner wall of the docking sleeve, the inner wall of the docking sleeve passes through the inner wall of the transmission tube and is connected with the inner wall of the airbag, and an auxiliary plate is fixedly installed on the inner wall of the docking sleeve.

[0009] As a preferred technical solution of the present invention, the top and bottom of the auxiliary plate are fixedly connected with tension springs, and the end of the tension spring away from the auxiliary plate is fixedly connected to the inner wall of the positioning rod, the outer edge of the docking tube is slidably sleeved with a sleeve, and the inner wall of the sleeve is slidably sleeved with the outer edge of the positioning rod, the side of the sleeve is fixedly equipped with an oblique support reinforcement column 1, the inner wall of the oblique support reinforcement column 1 is rotatably sleeved with an auxiliary rod, and the outer edge of the auxiliary rod is rotatably sleeved with an oblique support reinforcement column 2, and both ends of the oblique support reinforcement column 1 and both ends of the oblique support reinforcement column 2 are fixedly equipped with a sleeve.

[0010] As a preferred technical solution of the present invention, the outer edge of the rotating rod near both ends is movably sleeved with a torsion spring, and one end of the two torsion springs is fixedly sleeved with the inner wall of the fixed plate, and the other end of the two torsion springs is fixedly sleeved with the inner wall of the limiting rod, and the inner wall of the limiting rod near the bottom is provided with a limiting groove, and the inner wall of the limiting groove is fixedly equipped with a second magnet plate.

[0011] As a preferred technical solution of the present invention, a magnet plate 1 is fixedly mounted on the side of the limit plate, and the adjacent sides of magnet plate 1 and magnet plate 2 are adsorbed, and the shape and size of the side of the limit plate are adapted to the shape and size of the inner wall of the limit groove.

[0012] As a preferred technical solution of the present invention, the bottom of the circular plate is fixedly connected to spring 2, and the bottom of spring 2 is fixedly connected to a top plate, and the outer edge of the top plate is fixedly sleeved with the inner wall of the ladder main frame.

[0013] As a preferred technical solution of the present invention, the number of the ladder main frames is two, the number of the limit rods is sixteen, and the sixteen limit rods are grouped together into four and evenly distributed on the outer edges of the two ladder main frames near the bottom, the outer edges of the two ladder main frames are fixedly equipped with four docking tubes, the outer edges of the ladder main frames near the top are clamped with hooks, and the sides of the hooks are fixedly equipped with perforated platform plates.

[0014] As a preferred technical solution of the present invention, a ladder sub-frame is arranged on the top of the ladder main frame, and the connection structure of the ladder sub-frame is completely consistent with the connection structure of the ladder main frame.

[0015] The present invention has the following beneficial effects: 1. The scaffolding for building construction uses a limit rod and a limit plate in cooperation. When the ladder sub-frame is erected on the top of the ladder main frame, the outer edge of the bottom of the ladder sub-frame is slidably sleeved on the inner wall of the top of the ladder main frame, and drives the abutment rod to move downward, thereby utilizing the abutment rod to drive the outer edge of the limit plate to rotate and move downward along the inner wall of the arc-shaped groove, and during the rotation of the limit plate, the side surface of the limit plate pushes the limit rod to rotate until the side surface of the limit plate is docked with the inner wall of the limit groove, and the adjacent sides of the magnet plate 1 and the magnet plate 2 are adsorbed, thereby assisting the limit rod to stably limit the limit plate, while the ladder main frame and the ladder sub-frame are stably docked.

[0016] 2. The scaffolding for building construction uses a limit rod and a linkage rod in coordination. When the bottom of the linkage rod is connected to the ground by the main ladder frame, the linkage rod is pushed up to the inner wall of the bottom of the main ladder frame and the limit rod is pushed to expand. The eight limit rods near the bottom of both sides of the main ladder frame are used to assist the main ladder frame in stable support. When the linkage rod moves up, the linkage rod pushes the gas on the inner wall of the main ladder frame through the connecting pipe and the air bag to the inside of the transmission pipe. When the outer edge of the docking tube slides and sleeves with the inner wall of the sleeve, the gas inside the transmission pipe reaches the inner cavity of the docking tube and pushes the positioning rod to move, and the outer edge of the auxiliary positioning rod is limited to the docking tube and the sleeve, thereby assisting the convenient and stable erection of the oblique support reinforcement column one and the oblique support reinforcement column two. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of a partially disassembled structure of the present invention; Figure 3 This is a schematic diagram of the front cross-section structure of the main frame of the ladder of the present invention; Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle; Figure 5 For the present invention Figure 3 The enlarged structural diagram at B in the middle; Figure 6 This is a schematic diagram of the arc groove structure of the present invention; Figure 7 It is a schematic diagram of the side section structure of the limiting groove of the present invention; Figure 8 For the present invention Figure 7 The enlarged structural diagram at C in the middle; Fig. 9 It is a schematic diagram of the internal structure of the main frame of the ladder of the present invention.

[0018] In the figure: 1. main frame of ladder; 2. fixing plate; 3. rotating rod; 4. torsion spring; 5. limiting rod; 6. air bag; 7. bottom plate; 8. spring 1; 9. linkage rod; 10. connecting pipe; 11. docking tube; 12. tension spring; 13. sleeve; 14. transmission tube; 15. top plate; 16. spring 2; 17. round plate; 18. limiting plate; 19. magnet plate 1; 20. magnet plate 2; 21. abutting rod; 22. arc groove; 23. auxiliary frame of ladder; 24. oblique support reinforcement column 1; 25. auxiliary rod; 26. oblique support reinforcement column 2; 27. hook; 28. perforated platform plate; 29. ​​limiting groove; 30. auxiliary plate; 31. positioning rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-Figure 9 A scaffold for building construction comprises a main ladder frame 1, wherein a fixing plate 2 is fixedly mounted on the outer edge of the main ladder frame 1 near the bottom, a rotating rod 3 is rotatably sleeved on the inner wall of the fixing plate 2, a limiting rod 5 is fixedly sleeved on the outer edge of the rotating rod 3, a circular plate 17 is slidably sleeved on the inner wall of the main ladder frame 1 near the top, a limiting plate 18 is rotatably connected to the top of the circular plate 17, an arc groove 22 is provided on the top of the main ladder frame 1, and the inner wall of the arc groove 22 is slidably connected to the outer edge of the limiting plate 18, an abutting rod 21 is fixedly mounted on the top of the limiting plate 18, a linkage rod 9 is slidably sleeved on the inner wall of the bottom of the main ladder frame 1, an air bag 6 is fixedly mounted on the inner wall of the main ladder frame 1, and an air bag 6 is fixedly mounted on the inner wall of the main ladder frame 1 through the rotating rod 3. In cooperation with the limit rod 5, the inner wall of the limit rod 5 is used to rotate on the outer edge of the rotating rod 3, so as to assist the bottom of the limit rod 5 to overlap with the ground, and assist the main ladder frame 1 for support, and the limit rod 5 is used to rotate towards each other, and the inner wall of the auxiliary limit rod 5 is limited by the side of the limit plate 18. Through the cooperation of the arc groove 22 and the limit plate 18, the outer edge of the limit plate 18 is used to slide in the inner wall of the arc groove 22, so as to assist the main ladder frame 1 and the ladder sub-frame 23 to dock. The shape and size of the inner wall at the top of the ladder main frame 1 are adapted to the shape and size of the outer edge of the bottom of the ladder main frame 1, so as to facilitate the stable docking and installation of the ladder main frame 1 and the ladder sub-frame 23.

[0021] In a preferred embodiment, a base plate 7 is fixedly sleeved on the inner wall near the bottom of the ladder main frame 1, a spring 8 is fixedly connected to the bottom of the base plate 7, the bottom of the spring 8 is fixedly connected to the top of the linkage rod 9, and a connecting pipe 10 is fixedly sleeved on the inner wall of the base plate 7. By using the spring 8 in coordination with the linkage rod 9, the spring 8 is used to push the linkage rod 9 downward at the bottom of the base plate 7, thereby assisting the linkage rod 9 to reset without being affected by external force, thereby driving the positioning rod 31 to be stored in the inner wall of the docking tube 11, and when the ladder main frame 1 drives the bottom of the linkage rod 9 to overlap with the ground, the gravity of the ladder main frame 1 pushes the linkage rod 9 downward to be stored in the inner wall at the bottom of the ladder main frame 1.

[0022] In a preferred embodiment, the bottom of the base plate 7, the inner wall of the ladder main frame 1 and the top of the linkage rod 9 form a accommodating chamber, the outer edge of the connecting tube 10 is fixedly sleeved with the inner wall of the airbag 6, and the inner cavity of the airbag 6 passes through the inner wall of the connecting tube 10 and is connected with the inner cavity of the accommodating chamber, and the inner wall of the ladder main frame 1 is fixedly sleeved with a transmission tube 14. Through the coordinated use of the airbag 6 and the connecting tube 10, when the linkage rod 9 is subjected to the downward pressure of the ladder main frame 1, the linkage rod 9 squeezes the accommodating chamber, forcing the gas inside the accommodating chamber to pass through the inner wall of the connecting tube 10 into the inner cavity of the airbag 6, and the outer edge of the airbag 6 is attached to the top of the base plate 7, the bottom of the top plate 15 and the inner wall of the ladder main frame 1, so that the inside of the transmission tube 14 is exhausted when the inside of the airbag 6 is supplied with air by the connecting tube 10.

[0023] In a preferred embodiment, the outer edge of the ladder main frame 1 is fixedly equipped with a docking sleeve 11, and the inner wall of the docking sleeve 11 is slidably sleeved with a positioning rod 31. The inner wall of the docking sleeve 11 passes through the inner wall of the transmission tube 14 and is connected with the inner wall of the airbag 6. The inner wall of the docking sleeve 11 is fixedly equipped with an auxiliary plate 30. Through the coordinated use of the docking sleeve 11 and the positioning rod 31, the airbag 6 is used to supply air to the inner cavity of the docking sleeve 11 through the transmission tube 14, thereby pushing the positioning rod 31 to move upward, thereby assisting the outer edge of the positioning rod 31 to limit the inner wall of the docking sleeve 11 and the inner wall of the sleeve 13.

[0024] In a preferred embodiment, the top and bottom of the auxiliary plate 30 are fixedly connected with a tension spring 12, and the end of the tension spring 12 away from the auxiliary plate 30 is fixedly connected to the inner wall of the positioning rod 31, the outer edge of the docking sleeve 11 is slidably sleeved with a sleeve 13, and the inner wall of the sleeve 13 is slidably sleeved with the outer edge of the positioning rod 31, and the side of the sleeve 13 is fixedly equipped with an oblique support reinforcement column 24, the inner wall of the oblique support reinforcement column 24 is rotatably sleeved with an auxiliary rod 25, and the outer edge of the auxiliary rod 25 is rotatably sleeved with The two ends of the oblique support reinforcing column 26, the oblique support reinforcing column 1 24 and the two ends of the oblique support reinforcing column 2 26 are fixedly equipped with a sleeve 13. Through the cooperation of the tension spring 12 and the positioning rod 31, when the linkage rod 9 moves downward, the internal gas of the docking sleeve 11 is discharged into the airbag 6 and the accommodating cavity, so that the tension spring 12 drives the positioning rod 31 to reset to the inner cavity of the docking sleeve 11, thereby facilitating the movement of the sleeve 13 away from the docking sleeve 11, thereby assisting the separation of the sleeve 13 and the docking sleeve 11.

[0025] The cam 22 is a substantially parallelogram of the cam 20 and the cam 24 is a substantially parallelogram of the cam 20. The cam 22 is a substantially parallelogram of the cam 20 and the cam 24 is a substantially parallelogram of the cam 20. The cam 22 is a substantially parallelogram of the cam 20 and the cam 24 is a substantially parallelogram of the cam 20.

[0026] In a preferred embodiment, a magnet plate 19 is fixedly mounted on the side of the limit plate 18, and the adjacent sides of the magnet plate 19 and the magnet plate 2 20 are adsorbed, and the shape and size of the side of the limit plate 18 are adapted to the shape and size of the inner wall of the limit groove 29. By using the magnet plate 19 and the magnet plate 2 20 in coordination, the adjacent sides of the magnet plate 19 and the magnet plate 2 20 are adsorbed, thereby assisting the side of the limit plate 18 to be stably adsorbed to the inner wall of the limit groove 29. The two ends of the limit plate 18 are trapezoidal in shape, and then when the trapezoidal inclined surface slides along the inner wall of the arc groove 22 with the limit plate 18, the trapezoidal inclined surface first contacts the side of the limit plate 18, thereby utilizing the inclined surface to push the limit plate 18 to slide along the inclined surface, thereby assisting the limit plate 18 to move to the inner wall of the limit groove 29.

[0027] In a preferred embodiment, the bottom of the circular plate 17 is fixedly connected to a spring 2 16, and the bottom of the spring 2 16 is fixedly connected to a top plate 15, and the outer edge of the top plate 15 is fixedly sleeved with the inner wall of the ladder main frame 1. By using the spring 2 16 and the circular plate 17 in coordination, the spring 2 16 is used to push the circular plate 17 upward at the top of the top plate 15, and then the circular plate 17 is used to push the limit plate 18 upward, thereby facilitating the stable limiting fit between the top of the auxiliary limit plate 18 pushed by the spring 2 16 and the top of the inner wall of the limit groove 29.

[0028] In a preferred embodiment, the number of ladder main frames 1 is two, the number of limit rods 5 is sixteen, and the sixteen limit rods 5 are grouped in four and evenly distributed on the outer edges of the two ladder main frames 1 near the bottom, the outer edges of the two ladder main frames 1 are fixedly equipped with four docking tubes 11, the outer edges of the ladder main frames 1 near the top are clamped with hooks 27, and the sides of the hooks 27 are fixedly equipped with perforated platform plates 28, by adding sixteen limit rods 5, the sixteen limit rods 5 are arranged in groups of four on the inner wall of the fixed plate 2 near the bottom of the two ladder main frames 1, and then the sixteen limit rods 5 are used to stably support the device when they are unfolded.

[0029] In a preferred embodiment, a ladder sub-frame 23 is provided on the top of the ladder main frame 1, and the connection structure of the ladder sub-frame 23 is completely consistent with the connection structure of the ladder main frame 1. By adding the ladder sub-frame 23, it is convenient to use the ladder sub-frame 23 to dock with the ladder main frame 1 under the same connection structure, and the outer edge of the bottom of the auxiliary ladder sub-frame 23 is docked with the inner wall of the top of the ladder main frame 1, and then the limiting plate 18 on the top of the ladder main frame 1 is used to dock with the limiting groove 29 at the bottom of the ladder sub-frame 23, thereby ensuring the stability of the connection between the ladder main frame 1 and the ladder sub-frame 23.

[0030] Working principle: when the device is in use, the ladder main frame 1 drives the bottom of the linkage rod 9 to overlap with the ground, thereby pushing the linkage rod 9 to move up to the inner wall of the bottom of the ladder main frame 1, and pushing the limit rod 5 to unfold, so that the eight limit rods 5 near the bottom of the two sides of the ladder main frame 1 are used to assist the ladder main frame 1 in stable support, and when the linkage rod 9 moves up, the linkage rod 9 pushes the gas on the inner wall of the ladder main frame 1 through the connecting pipe 10 and the air bag 6 to the inside of the transmission pipe 14, and then when the outer edge of the docking tube 11 is slidably sleeved with the inner wall of the sleeve 13, the gas inside the transmission pipe 14 goes to the inner cavity of the docking tube 11, and pushes the positioning rod 31 to move, and the outer edge of the auxiliary positioning rod 31 is limited to the docking tube 11 and the sleeve 13, thereby assisting the inclined The supporting reinforcement column 1 24 and the inclined supporting reinforcement column 26 are conveniently and stably erected. When the ladder sub-frame 23 is erected on the top of the ladder main frame 1, the outer edge of the bottom of the ladder sub-frame 23 is slidably sleeved on the inner wall of the top of the ladder main frame 1, and drives the abutment rod 21 to move downward, so that the abutment rod 21 is used to drive the outer edge of the limit plate 18 to rotate and move downward along the inner wall of the arc-shaped groove 22, and during the rotation of the limit plate 18, the side of the limit plate 18 pushes the limit rod 5 to rotate until the side of the limit plate 18 is docked with the inner wall of the limit groove 29, and the adjacent sides of the magnet plate 19 and the magnet plate 20 are adsorbed, so as to assist the limit rod 5 to stably limit the limit plate 18, while the ladder main frame 1 and the ladder sub-frame 23 are stably docked.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A scaffold for construction, comprising a ladder main frame (1), characterized in that: A fixing plate (2) is fixedly mounted on the outer edge near the bottom of the main ladder frame (1), a rotating rod (3) is rotatably sleeved on the inner wall of the fixing plate (2), a limiting rod (5) is fixedly sleeved on the outer edge of the rotating rod (3), a circular plate (17) is slidably sleeved on the inner wall near the top of the main ladder frame (1), the top of the circular plate (17) is rotatably connected to the limiting plate (18), an arc groove (22) is provided on the top of the main ladder frame (1), and the inner wall of the arc groove (22) is slidably connected to the outer edge of the limiting plate (18), an abutment rod (21) is fixedly mounted on the top of the limiting plate (18), a linkage rod (9) is slidably sleeved on the inner wall of the bottom of the main ladder frame (1), and an air bag (6) is fixedly mounted on the inner wall of the main ladder frame (1).

2. A scaffold for construction according to claim 1, characterized in that: A bottom plate (7) is fixedly sleeved on the inner wall of the main ladder frame (1) near the bottom, a spring (8) is fixedly connected to the bottom of the bottom plate (7), the bottom of the spring (8) is fixedly connected to the top of the linkage rod (9), and a connecting pipe (10) is fixedly sleeved on the inner wall of the bottom plate (7).

3. A scaffold for construction according to claim 2, characterized in that: The bottom of the base plate (7), the inner wall of the ladder main frame (1) and the top of the linkage rod (9) form a receiving chamber, the outer edge of the connecting pipe (10) is fixedly sleeved with the inner wall of the airbag (6), and the inner cavity of the airbag (6) passes through the inner wall of the connecting pipe (10) and is connected to the inner cavity of the receiving chamber, and the inner wall of the ladder main frame (1) is fixedly sleeved with a transmission pipe (14).

4. A scaffold for construction according to claim 3, characterized in that: A docking sleeve (11) is fixedly mounted on the outer edge of the ladder main frame (1), a positioning rod (31) is slidably sleeved on the inner wall of the docking sleeve (11), the inner wall of the docking sleeve (11) passes through the inner wall of the transmission tube (14) and is connected to the inner wall of the airbag (6), and an auxiliary plate (30) is fixedly mounted on the inner wall of the docking sleeve (11).

5. A scaffold for construction according to claim 4, characterized in that: The top and bottom of the auxiliary plate (30) are both fixedly connected with a tension spring (12), and one end of the tension spring (12) away from the auxiliary plate (30) is fixedly connected to the inner wall of the positioning rod (31); the outer edge of the docking tube (11) is slidably sleeved with a sleeve (13), and the inner wall of the sleeve (13) is slidably sleeved with the outer edge of the positioning rod (31); the side of the sleeve (13) is fixedly equipped with an oblique support reinforcement column (24); the inner wall of the oblique support reinforcement column (24) is rotatably sleeved with an auxiliary rod (25), and the outer edge of the auxiliary rod (25) is rotatably sleeved with an oblique support reinforcement column (26); both ends of the oblique support reinforcement column (24) and both ends of the oblique support reinforcement column (26) are fixedly equipped with a sleeve (13).

6. A scaffold for construction according to claim 1, characterized in that: The outer edges of the rotating rod (3) near both ends are movably sleeved with a torsion spring (4), and one end of the two torsion springs (4) is fixedly sleeved with the inner wall of the fixed plate (2), and the other ends of the two torsion springs (4) are fixedly sleeved with the inner wall of the limiting rod (5). The limiting rod (5) is provided with a limiting groove (29) on the inner wall near the bottom, and the inner wall of the limiting groove (29) is fixedly mounted with a second magnet plate (20).

7. A scaffold for construction according to claim 1, characterized in that: A magnet plate 1 (19) is fixedly mounted on the side of the limiting plate (18), and the adjacent side surfaces of the magnet plate 1 (19) and the magnet plate 2 (20) are adsorbed to each other, and the shape and size of the side surface of the limiting plate (18) are matched to the shape and size of the inner wall of the limiting groove (29).

8. A scaffold for construction according to claim 1, characterized in that: The bottom of the circular plate (17) is fixedly connected to a second spring (16), and the bottom of the second spring (16) is fixedly connected to a top plate (15), and the outer edge of the top plate (15) is fixedly sleeved with the inner wall of the ladder main frame (1).

9. A scaffold for construction according to claim 1, characterized in that: The number of the ladder main frames (1) is two, the number of the limit rods (5) is sixteen, and the sixteen limit rods (5) are evenly distributed on the outer edges of the two ladder main frames (1) near the bottom in a group of four, the outer edges of the two ladder main frames (1) are fixedly equipped with four docking tubes (11), the outer edges of the ladder main frames (1) near the top are clamped with hooks (27), and the sides of the hooks (27) are fixedly equipped with perforated platform plates (28).

10. A scaffold for construction according to claim 1, characterized in that: A ladder sub-frame (23) is provided on the top of the ladder main frame (1), and the connection structure of the ladder sub-frame (23) is completely consistent with the connection structure of the ladder main frame (1).

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