A scaffolding for building construction

Abstract

The present invention relates to the technical field of building construction, and discloses a scaffolding for building construction, including a main ladder frame. A fixed plate is fixedly assembled on the outer edge of the main ladder frame near the bottom. A rotating rod is rotatably sleeved on the inner wall of the fixed plate. A limiting rod is fixedly sleeved on the outer edge of the rotating rod. A circular plate is slidably sleeved on the inner wall of the main ladder frame near the top. Through the cooperation of the limiting rod and the limiting plate, when the auxiliary ladder frame is erected on the top of the main ladder frame, the outer edge of the bottom of the auxiliary ladder frame is slidably sleeved on the inner wall of the top of the main ladder frame, and drives the abutting rod to move downward. Thereby, the outer edge of the limiting plate is driven to rotate and move downward along the inner wall of the arc-shaped groove by the abutting rod. During the rotation of the limiting plate, the side surface of the limiting plate pushes the limiting rod to rotate until the side surface of the limiting plate is butted against the inner wall of the limiting groove, and the adjacent side surfaces of the magnet plate one and the magnet plate two are adsorbed to each other, so as to stably limit the limiting plate by the auxiliary limiting rod while the main ladder frame and the auxiliary ladder frame are stably butted.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and specifically relates to a scaffolding for building construction. Background Art

[0002] A scaffolding is a commonly used temporary facility in construction projects, mainly providing a high working surface for the operation of high-altitude workers, the stacking of materials, and short-distance horizontal transportation.

[0003] During the use of traditional scaffolding, the ladder frame and the scissor-type inclined support strengthening column are butt-jointed and fixed through pins until two ladder frames and two scissor-type inclined support strengthening columns assist in the construction of a first-layer platform. Then, the second-layer platform is similarly erected on the top of the first-layer platform. However, when the ladder frames are vertically butt-jointed in traditional scaffolding, only the connection between the cylinder and the rod is carried out, which affects the stability of platform erection. Moreover, traditional scaffolding uses the bottom support rods of the ladder frames for single support, which further affects the support stability of the platform when users walk on the top of the platform. Summary of the Invention

[0004] The present invention provides a scaffolding for building construction to solve the problems raised in the above background art.

[0005] The present invention provides the following technical solutions: A scaffolding for building construction includes a main ladder frame. A fixed plate is fixedly assembled on the outer edge of the main ladder frame near the bottom. A rotating rod is rotatably sleeved on the inner wall of the fixed plate. A limiting rod is fixedly sleeved on the outer edge of the rotating rod. A circular plate is slidably sleeved on the inner wall of the main ladder frame near the top. A limiting plate is rotatably connected to the top of the circular plate. An arc-shaped groove is formed on the top of the main ladder frame, and the inner wall of the arc-shaped groove is slidably connected to the outer edge of the limiting plate. A butting rod is fixedly assembled on the top of the limiting plate. A linkage rod is slidably sleeved on the inner wall of the bottom of the main ladder frame. An airbag is fixedly assembled on the inner wall of the main ladder frame.

[0006] As a preferred technical solution of the present invention, a bottom plate is fixedly sleeved on the inner wall of the main ladder frame near the bottom. A first spring is fixedly connected to the bottom of the bottom plate. The bottom of the first spring is fixedly connected to the top of the linkage rod. A communication pipe is fixedly sleeved on the inner wall of the bottom plate.

[0007] As a preferred technical solution of the present invention, a receiving cavity is formed among the bottom of the bottom plate, the inner wall of the main ladder frame, and the top of the linkage rod. The outer edge of the communication pipe is fixedly sleeved on the inner wall of the airbag, and the inner cavity of the airbag passes through the inner wall of the communication pipe and is connected to the inner cavity of the receiving cavity. A transmission pipe is fixedly sleeved on the inner wall of the main ladder frame.

[0008] As a preferred technical solution of the present invention, a docking cylinder is fixedly assembled on the outer edge of the main ladder frame. A positioning rod is slidably sleeved on the inner wall of the docking cylinder. The inner wall of the docking cylinder passes through the inner wall of the transmission pipe and is connected to the inner wall of the airbag. An auxiliary plate is fixedly assembled on the inner wall of the docking cylinder.

[0009] As a preferred technical solution of the present invention, tension springs are fixedly connected to both the top and bottom of the auxiliary plate, and the ends of the tension springs away from the auxiliary plate are fixedly connected to the inner wall of the positioning rod. A sleeve is slidably sleeved on the outer edge of the docking cylinder, and the inner wall of the sleeve is slidably sleeved on the outer edge of the positioning rod. An inclined support strengthening column one is fixedly assembled on the side of the sleeve. An auxiliary rod is rotatably sleeved on the inner wall of the inclined support strengthening column one, and an inclined support strengthening column two is rotatably sleeved on the outer edge of the auxiliary rod. A sleeve is fixedly assembled at both ends of the inclined support strengthening column one and both ends of the inclined support strengthening column two.

[0010] As a preferred technical solution of the present invention, torsion springs are movably sleeved on the outer edges near both ends of the rotating rod, and one end of each of the two torsion springs is fixedly sleeved on the inner wall of the fixing plate. The other ends of the two torsion springs are fixedly sleeved on the inner wall of the limiting rod. A limiting groove is opened on the inner wall near the bottom of the limiting rod, and a magnet plate two is fixedly assembled on the inner wall of the limiting groove.

[0011] As a preferred technical solution of the present invention, a magnet plate one is fixedly assembled on the side of the limiting plate, and the side of the magnet plate one adjacent to the magnet plate two is adsorbed. The shape and size of the side of the limiting plate are adapted to the shape and size of the inner wall of the limiting groove.

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

[0013] As a preferred technical solution of the present invention, the number of the main ladder frames is two, the number of the limiting rods is sixteen, and the sixteen limiting rods are evenly distributed in groups of four on the outer edges near the bottom of the two main ladder frames. Four docking cylinders are fixedly assembled on the outer edges of both main ladder frames. A hook is clamped on the outer edge near the top of the main ladder frame, and an opening platform plate is fixedly assembled on the side of the hook.

[0014] As a preferred technical solution of the present invention, a secondary ladder frame is arranged at the top of the main ladder frame, and the connection structure of the secondary ladder frame is completely the same as that of the main ladder frame.

[0015] The present invention has the following beneficial effects:

[0016] 1. For the scaffolding used in building construction, through the combined use of the limit rod and the limit plate, when the auxiliary ladder frame is erected on the top of the main ladder frame, the outer edge of the bottom of the auxiliary ladder frame is slidably sleeved on the inner wall of the top of the main ladder frame, driving the abutting rod to move downward. Thus, the outer edge of the limit plate is driven to rotate and move downward along the inner wall of the arc-shaped groove by the abutting rod. 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 side surfaces of the first magnetic plate and the second magnetic plate are adsorbed to each other. While assisting the limit rod to stably limit the limit plate, the main ladder frame and the auxiliary ladder frame are stably docked.

[0017] 2. For the scaffolding used in building construction, through the combined use of the limit rod and the linkage rod, when the bottom of the linkage rod is lapped with the ground driven by the main ladder frame, the linkage rod is pushed upward to the inner wall of the bottom of the main ladder frame, and the limit rod is pushed to unfold. Thus, eight limit rods near the two bottom sides of the main ladder frame are used to assist in the stable support of the main ladder frame. When the linkage rod moves upward, the linkage rod pushes the gas inside the inner wall of the main ladder frame through the connecting pipe and the airbag to the inside of the transmission pipe. Furthermore, when the outer edge of the docking cylinder is slidably sleeved on the inner wall of the sleeve, the gas inside the transmission pipe enters the inner cavity of the docking cylinder, and the positioning rod is pushed to move, assisting the outer edge of the positioning rod to limit the docking cylinder and the sleeve, thereby assisting in the convenient and stable erection of the first inclined support strengthening column and the second inclined support strengthening column. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 is a partial disassembled structural schematic diagram of the present invention;

[0020] Figure 3 is a front sectional structural schematic diagram of the main ladder frame of the present invention;

[0021] Figure 4 is of the present invention Figure 3 the enlarged structural schematic diagram at A in;

[0022] Figure 5 is of the present invention Figure 3 the enlarged structural schematic diagram at B in;

[0023] Figure 6 is a structural schematic diagram of the arc-shaped groove of the present invention;

[0024] Figure 7 is a side sectional structural schematic diagram of the limit groove of the present invention;

[0025] Figure 8 is of the present invention Figure 7 the enlarged structural schematic diagram at C in;

[0026] Figure 9 is an internal structural schematic diagram of the main ladder frame of the present invention.

[0027] 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

[0028] 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.

[0029] See also Figures 1 - 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.

[0030] In a preferred embodiment, a bottom plate 7 is fixedly sleeved on the inner wall of the main ladder frame 1 near the bottom. A first spring 8 is fixedly connected to the bottom of the bottom plate 7. The bottom of the first spring 8 is fixedly connected to the top of a linkage rod 9. A communicating pipe 10 is fixedly sleeved on the inner wall of the bottom plate 7. By the combined use of the first spring 8 and the linkage rod 9, the first spring 8 pushes the linkage rod 9 downward at the bottom of the bottom plate 7, thereby assisting the linkage rod 9 to reset when no external force is applied, and driving a positioning rod 31 to be received into the inner wall of a docking cylinder 11. When the bottom of the linkage rod 9 driven by the main ladder frame 1 abuts against the ground, the gravity of the main ladder frame 1 presses down to drive the linkage rod 9 to be received into the inner wall at the bottom of the main ladder frame 1.

[0031] In a preferred embodiment, a receiving cavity is formed among the bottom of the bottom plate 7, the inner wall of the main ladder frame 1, and the top of the linkage rod 9. The outer edge of the communicating pipe 10 is fixedly sleeved on the inner wall of an airbag 6. The inner cavity of the airbag 6 passes through the inner wall of the communicating pipe 10 and is connected to the inner cavity of the receiving cavity. A transmission pipe 14 is fixedly sleeved on the inner wall of the main ladder frame 1. By the combined use of the airbag 6 and the communicating pipe 10, when the linkage rod 9 is pressed by the gravity of the main ladder frame 1, the linkage rod 9 squeezes the receiving cavity, forcing the gas inside the receiving cavity to pass through the inner wall of the communicating pipe 10 into the inner cavity of the airbag 6. The outer edge of the airbag 6 fits against the top of the bottom plate 7, the bottom of a top plate 15, and the inner wall of the main ladder frame 1, so as to exhaust the gas inside the transmission pipe 14 when the airbag 6 is inflated through the communicating pipe 10.

[0032] In a preferred embodiment, a docking cylinder 11 is fixedly assembled on the outer edge of the main ladder frame 1. A positioning rod 31 is slidably sleeved on the inner wall of the docking cylinder 11. The inner wall of the docking cylinder 11 passes through the inner wall of the transmission pipe 14 and is connected to the inner wall of the airbag 6. An auxiliary plate 30 is fixedly assembled on the inner wall of the docking cylinder 11. By the combined use of the docking cylinder 11 and the positioning rod 31, the airbag 6 supplies air to the inner cavity of the docking cylinder 11 through the transmission pipe 14, thereby pushing the positioning rod 31 upward, and assisting the outer edge of the positioning rod 31 to be limited by the inner wall of the docking cylinder 11 and the inner wall of a sleeve 13.

[0033] In a preferred embodiment, tension springs 12 are fixedly connected to both the top and bottom of the auxiliary plate 30, and the ends of the tension springs 12 away from the auxiliary plate 30 are fixedly connected to the inner wall of the positioning rod 31. A sleeve 13 is slidably sleeved on the outer edge of the docking cylinder 11, and the inner wall of the sleeve 13 is slidably sleeved on the outer edge of the positioning rod 31. An inclined support strengthening column one 24 is fixedly assembled on the side of the sleeve 13. An auxiliary rod 25 is rotatably sleeved on the inner wall of the inclined support strengthening column one 24, and an inclined support strengthening column two 26 is rotatably sleeved on the outer edge of the auxiliary rod 25. One sleeve 13 is fixedly assembled at both ends of the inclined support strengthening column one 24 and both ends of the inclined support strengthening column two 26. By using the cooperation of the tension spring 12 and the positioning rod 31, when the linkage rod 9 moves downward, the gas inside the docking cylinder 11 is discharged into the airbag 6 and the accommodating cavity. Thus, the tension spring 12 drives the positioning rod 31 to reset into the inner cavity of the docking cylinder 11, and then it is convenient to move the sleeve 13 in the direction away from the docking cylinder 11, further assisting in the separation of the sleeve 13 and the docking cylinder 11.

[0034] In a preferred embodiment, torsion springs 4 are movably sleeved on the outer edges near both ends of the rotating rod 3, and one end of each of the two torsion springs 4 is fixedly sleeved on the inner wall of the fixing plate 2, and the other end of each of the two torsion springs 4 is fixedly sleeved on the inner wall of the limiting rod 5. A limiting groove 29 is formed in the inner wall near the bottom of the limiting rod 5, and a magnet plate two 20 is fixedly assembled on the inner wall of the limiting groove 29. By using the cooperation of the torsion spring 4 and the limiting rod 5, the torsion spring 4 pulls and resets the limiting rod 5 on the outer edge of the rotating rod 3. Thus, it is convenient to use the torsion spring 4 to pull the limiting rod 5 to rotate towards the bottom of the main ladder frame 1, and further ensure that when the bottom of the limiting rod 5 is in contact with the ground when the main ladder frame 1 is lapped with the ground, the bottom of the limiting rod 5 is in stable contact with the ground, thereby providing auxiliary support for the main ladder frame 1. And when the main ladder frame 1 and the auxiliary ladder frame 23 are docked, the limiting rod 5 near the bottom of the auxiliary ladder frame 23 is pulled by the torsion spring 4, and the inner wall of the limiting groove 29 is stably limited to the side of the limiting plate 18.

[0035] In a preferred embodiment, a magnet plate one 19 is fixedly assembled on the side of the limiting plate 18, and the side of the magnet plate one 19 adjacent to the magnet plate two 20 is adsorbed. The shape and size of the side of the limiting plate 18 are adapted to the shape and size of the inner wall of the limiting groove 29. By using the cooperation of the magnet plate one 19 and the magnet plate two 20, the adjacent sides of the magnet plate one 19 and the magnet plate two 20 are adsorbed to each other, thereby assisting in the stable adsorption of the side of the limiting plate 18 to the inner wall of the limiting groove 29. The two ends of the limiting plate 18 are trapezoidal. Thus, when the trapezoidal inclined surface slides along the inner wall of the arc-shaped groove 22 with the limiting plate 18, the trapezoidal inclined surface first contacts the side of the limiting plate 18, and then the inclined surface pushes the limiting plate 18 to slide along the inclined surface, further assisting the limiting plate 18 to move into the inner wall of the limiting groove 29.

[0036] In a preferred embodiment, a second spring 16 is fixedly connected to the bottom of the circular plate 17, and the bottom of the second spring 16 is fixedly connected to the top plate 15. The outer edge of the top plate 15 is fixedly sleeved with the inner wall of the main ladder frame 1. By using the second spring 16 in cooperation with the circular plate 17, the second spring 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 limiting plate 18 upward, so as to facilitate the stable limiting fit between the top of the limiting plate 18 pushed by the second spring 16 and the top of the inner wall of the limiting groove 29.

[0037] In a preferred embodiment, the number of the main ladder frames 1 is two, the number of the limiting rods 5 is sixteen, and the sixteen limiting rods 5 are evenly distributed in groups of four on the outer edges of the two main ladder frames 1 near the bottom. Four docking cylinders 11 are fixedly assembled on the outer edges of the two main ladder frames 1. A hook 27 is clamped on the outer edge of the main ladder frame 1 near the top, and an opening platform plate 28 is fixedly assembled on the side of the hook 27. By adding the sixteen limiting rods 5, the sixteen limiting rods 5 are used to support the device stably when they are deployed by being arranged in groups of four in the inner walls of the fixing plates 2 of the two main ladder frames 1 near the bottom.

[0038] In a preferred embodiment, a sub-ladder frame 23 is arranged at the top of the main ladder frame 1, and the connection structure of the sub-ladder frame 23 is completely the same as that of the main ladder frame 1. By adding the sub-ladder frame 23, it is convenient to dock the sub-ladder frame 23 with the main ladder frame 1 under the same connection structure, and to assist the docking of the outer edge of the bottom of the sub-ladder frame 23 with the inner wall of the top of the main ladder frame 1. Then, the limiting plate 18 at the top of the main ladder frame 1 is docked with the limiting groove 29 at the bottom of the sub-ladder frame 23, so as to ensure the stable connection between the main ladder frame 1 and the sub-ladder frame 23.

[0039] Working principle: When the device is in use, when the bottom of the main ladder frame 1 drives the linkage rod 9 to lap with the ground, the linkage rod 9 is pushed upward to the inner wall at the bottom of the main ladder frame 1, and the limiting rod 5 is pushed to unfold. Thus, the eight limiting rods 5 near the two sides of the bottom of the main ladder frame 1 are used to assist the main ladder frame 1 in stable support. When the linkage rod 9 moves upward, the gas inside the inner wall of the main ladder frame 1 pushed by the linkage rod 9 passes through the communication pipe 10 and the airbag 6 into the transmission pipe 14. Then, when the outer edge of the docking cylinder 11 slides and sleeves with the inner wall of the sleeve 13, the gas inside the transmission pipe 14 enters the inner cavity of the docking cylinder 11, and the positioning rod 31 is pushed to move, assisting the outer edge of the positioning rod 31 to limit the docking cylinder 11 and the sleeve 13, so as to assist the convenient and stable erection of the inclined support strengthening column one 24 and the inclined support strengthening column two 26. When the auxiliary ladder frame 23 is erected on the top of the main ladder frame 1, the outer edge of the bottom of the auxiliary ladder frame 23 slides and sleeves with the inner wall of the top of the main ladder frame 1, driving the abutting rod 21 to move downward. Thus, the outer edge of the limiting plate 18 is driven by the abutting rod 21 to rotate and move downward along the inner wall of the arc-shaped groove 22. During the rotation of the limiting plate 18, the side surface of the limiting plate 18 pushes the limiting rod 5 to rotate until the side surface of the limiting plate 18 abuts against the inner wall of the limiting groove 29, and the adjacent side surfaces of the magnetic plate one 19 and the magnetic plate two 20 are adsorbed to each other. Thus, while assisting the limiting rod 5 to stably limit the limiting plate 18, the main ladder frame 1 and the auxiliary ladder frame 23 are stably docked.

[0040] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0041] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. 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 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, the top of the circular plate (17) is rotatably connected to the limiting plate (18), an arc-shaped groove (22) is provided on the top of the main ladder frame (1), and the inner wall of the arc-shaped groove (22) is slidably connected to the outer edge of the limiting plate (18) The top of the limit plate (18) is fixedly equipped with an abutment rod (21), the inner wall of the bottom of the ladder main frame (1) is slidably sleeved with a linkage rod (9), the inner wall of the ladder main frame (1) is fixedly equipped with an air bag (6), the inner wall of the ladder main frame (1) near the bottom is fixedly sleeved with a bottom plate (7), the bottom of the bottom plate (7) is fixedly connected with a spring 1 (8), the bottom of the spring 1 (8) is fixedly connected to the top of the linkage rod (9), and the inner wall of the bottom plate (7) is fixedly sleeved with a connecting pipe (10).

2. A scaffold for construction according to claim 1, 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).

3. A scaffold for construction according to claim 2, 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).

4. A scaffold for construction according to claim 3, 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).

5. 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).

6. 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).

7. 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).

8. 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).

9. 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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