Cantilever supporting structure of cantilever scaffold

Abstract

The utility model relates to an overhanging supporting structure of an overhanging scaffold. The overhanging supporting structure comprises an overhanging steel beam and a vertical rod positioning mechanism. The vertical rod positioning mechanism is composed of a top clamping plate, a bottom clamping plate, a split bolt and nut assembly and a guide sleeve. The top clamping plate and the bottom clamping plate clamp the cantilever steel beam from the upper side and the lower side. The front end and the rear end of the top clamping plate are connected with the front end and the rear end of the bottom clamping plate through split bolt and nut assemblies. The top clamping plate and the bottom clamping plate can be oppositely pulled and fixed to the cantilever steel beam by locking the split bolt and nut assembly, and the vertical rod positioning mechanism can be moved by unscrewing the split bolt and nut assembly. A through hole is formed in the top clamping plate, the bottom end of the guide sleeve is fixed to the through hole in the top face of the top clamping plate, a vertical rod of the overhanging scaffold can downwards penetrate into the guide sleeve, and the bottom end of the vertical rod is supported by the overhanging steel beam. According to the cantilever supporting structure, the vertical rod positioning mechanism is used for replacing a vertical rod positioning steel bar in the prior art, the vertical rod positioning mechanism is detachably installed on the cantilever steel beam, the installation position can be conveniently adjusted, fire operation is not needed, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a cantilever supporting structure of a cantilever scaffold. Background Art

[0002] The cantilever support structure is a support device that is suspended and installed on the edge of the building structure during construction to support the cantilever scaffolding. The existing cantilever support structure includes a cantilever steel beam, one end of which is fixedly installed on the edge of the building structure, and the other end extends outward. The vertical pole of the cantilever scaffolding is supported on the cantilever steel beam extending outward. Figure 1 As shown, it is necessary to weld the vertical pole positioning steel bars on the cantilever steel beam, and put the vertical poles of the cantilever scaffolding on the vertical pole positioning steel bars of the cantilever steel beam to facilitate the positioning and installation of the vertical poles and prevent the vertical poles from deviating on the cantilever steel beam.

[0003] The existing technology involves hot work when welding two vertical rod positioning steel bars on the cantilever steel beam. If the vertical rod positioning steel bars are welded in advance and then the cantilever steel beam is transported to the installation location, the vertical rod positioning steel bars are prone to collision and loosening during transportation. If the vertical rod positioning steel bars are temporarily welded at the installation location of the cantilever steel beam, it is easy to be restricted by the conditions of hot work (such as hot work personnel, hot work site, protective measures, etc.). In addition, once the vertical rod positioning steel bars are welded and fixed on the cantilever steel beam, it is not easy to adjust the position. When dismantling the cantilever steel beam, the vertical rod positioning steel bars need to be cut and removed, which is a more troublesome operation.

[0004] Based on the above content, the existing technology of welding vertical pole positioning steel bars on cantilever steel beams has problems such as troublesome installation and disassembly operations and inconvenient position adjustment of the vertical pole positioning steel bars after welding and fixing. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a cantilever supporting structure of a cantilever scaffolding, on which a detachable upright positioning mechanism is arranged, which does not require hot work, so as to solve the problem of the prior art of welding upright positioning steel bars on cantilever steel beams, which has troublesome installation and disassembly operations.

[0006] The utility model is realized by the following technical solutions:

[0007] A cantilever support structure of a cantilever scaffolding, comprising an I-shaped cantilever steel beam and a pole positioning mechanism detachably mounted on the cantilever steel beam;

[0008] The vertical pole positioning mechanism is composed of a top clamping plate, a bottom clamping plate, a tension bolt and nut assembly, and a guide sleeve;

[0009] The top clamping plate and the bottom clamping plate clamp the cantilever steel beam from the upper and lower sides, and the front end of the top clamping plate and the front end of the bottom clamping plate, as well as the rear end of the top clamping plate and the rear end of the bottom clamping plate are respectively connected by at least one set of tension bolt and nut assemblies; after tightening the nuts of the tension bolt and nut assemblies, the top clamping plate and the bottom clamping plate can be tensioned and fixed on the cantilever steel beam, and after loosening the nuts of the tension bolt and nut assemblies, the vertical pole positioning mechanism can be moved along the length direction of the cantilever steel beam to adjust the installation position of the vertical pole positioning mechanism on the cantilever steel beam;

[0010] A through hole is opened in the center of the top clamping plate, the bottom end of the guide sleeve is welded to the top surface of the top clamping plate, and the guide sleeve is coaxial with the through hole. The inner diameter of the guide sleeve is equal to the inner diameter of the through hole. The vertical pole of the cantilever scaffolding can be inserted downward into the guide sleeve, and the bottom end of the vertical pole is supported on the top surface of the cantilever steel beam.

[0011] Furthermore, two L-shaped angle plates are fixed to the bottom surface of the top clamping plate and the top surface of the bottom clamping plate with front and rear symmetry. The top clamping plate and the two L-shaped angle plates on its bottom surface form a T-shaped groove that slides with the upper flange plate of the cantilever steel beam, and the bottom clamping plate and the two L-shaped angle plates on its top surface form a T-shaped groove that slides with the lower flange plate of the cantilever steel beam. After loosening the nuts of the tension bolt and nut assembly, the top clamping plate can be moved along the upper flange plate of the cantilever steel beam, and the bottom clamping plate can be moved along the lower flange plate of the cantilever steel beam at the same time.

[0012] Furthermore, a plurality of ribs are provided between the outer side wall of the guide sleeve and the top surface of the top clamping plate, thereby improving the stability of the guide sleeve.

[0013] Furthermore, each of the L-shaped angle plates is welded with a perforated plate, and a threaded hole is opened on the perforated plate which penetrates along the front-to-back direction. A clamping bolt is installed in the threaded hole on each perforated plate, and the tail of the clamping bolt can be used to clamp the waist plate of the cantilever steel beam. The front and rear two clamping bolts clamp the waist plate of the cantilever steel beam, which can increase the connection strength between the upright positioning mechanism and the cantilever steel beam, and prevent the upright positioning mechanism from moving along the length direction of the cantilever steel beam after the cantilever scaffolding is installed.

[0014] Furthermore, the cantilever end of the cantilever steel beam is sleeved with a square sleeve with one end closed, and the inner wall of the square sleeve is in contact with the gap of the outer wall of the cantilever steel beam to avoid a large gap causing the square sleeve to rotate on the horizontal or vertical plane; a wire rope pull ring for connecting the upper pull wire rope is installed on the square sleeve, and the wire rope pull ring does not need to be welded to the cantilever steel beam, which is convenient for installation and disassembly.

[0015] Furthermore, a support plate is fixed to the top surface of the square sleeve, and the support plate is welded or integrally formed with the square sleeve; wire rope pull rings are welded to the front end top surface and the rear end top surface of the support plate, and two pull-up steel wire ropes are connected by two steel wire rope pull rings. The two pull-up steel wire ropes can improve the stability of the cantilever steel beam. The two pull-up steel wire ropes are respectively located on the front and rear sides of the vertical pole, which can avoid conflict between the pull-up steel wire ropes and the vertical pole.

[0016] Furthermore, the square sleeve is fixedly connected to the waist plate of the cantilever steel beam by a limiting bolt and nut assembly, which can improve the stability of the square sleeve and prevent it from falling from the cantilever end of the cantilever steel beam.

[0017] The beneficial effects of the utility model are:

[0018] The cantilever supporting structure of the cantilever scaffold is used in the construction process of building a cantilever scaffold on a building structure, by fixing a cantilever steel beam on the floor slab of the building structure to support the cantilever scaffold, and two upright pole positioning mechanisms for positioning and installing the upright poles of the cantilever scaffold are installed at intervals on the cantilever end of the cantilever steel beam. Compared with the prior art, when welding two upright pole positioning steel bars at the cantilever end of the cantilever steel beam, hot work is required, and once the upright pole positioning steel bars are welded and fixed on the cantilever steel beam, it is not convenient to adjust the position. When dismantling the cantilever steel beam, the upright pole positioning steel bars also need to be cut and dismantled, which is troublesome to operate. The cantilever supporting structure utilizes two upright pole positioning mechanisms to replace the two upright pole positioning steel bars. The upright pole positioning mechanisms can be detachably installed on the cantilever steel beam, which can facilitate the adjustment of the installation position, does not require hot work, and is relatively convenient to operate.

[0019] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the existing cantilever supporting structure.

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the utility model.

[0022] Figure 3 for Figure 2 A schematic diagram of the enlarged local structure in the middle.

[0023] Figure 4 It is a schematic diagram of the main structure of the utility model.

[0024] Figure 5 for Figure 4Schematic diagram of the cross-sectional structure along the BB direction.

[0025] In the figure: 1. cantilever steel beam, 2. vertical pole positioning steel bar, 3. vertical pole, 4. U-shaped anchor bolt, 5. steel pressure plate, 6. wooden wedge, 7. vertical pole positioning mechanism, 7.1. top clamping plate, 7.2. bottom clamping plate, 7.3. tension bolt and nut assembly, 7.4. guide sleeve, 7.5. L-shaped angle plate, 7.6. rib plate, 7.7. hole plate, 7.8. tightening bolt, 8. through hole, 9. T-shaped slide groove, 10. square sleeve, 11. wire rope pull ring, 12. support plate, 13. limit bolt and nut assembly. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. 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.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0029] In the above description of the utility model, it should be noted that the terms "one side", "the other side", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0030] In addition, the term "same" does not mean that the parts must be absolutely the same, but slight differences are allowed. The term "vertical" only means that the positional relationship between the parts is more vertical than "parallel", and does not mean that the structure must be completely vertical, but can be slightly tilted.

[0031] The utility model provides a technical solution: a cantilever support structure of a cantilever scaffolding, such as Figure 2 and Figure 4 As shown, it includes a cantilever steel beam 1 and a pole positioning mechanism 7;

[0032] like Figure 2 and Figure 5 As shown, the cantilever steel beam 1 is an I-beam, and one end of the cantilever steel beam 1 is fixed to the floor of the building structure by a plurality of U-shaped anchor bolts 4 and a plurality of steel pressure plates 5; specifically, before the floor is cast with concrete, a plurality of U-shaped anchor bolts 4 are fixed on the lower steel bars of the floor, and after the floor is cast with concrete, a plurality of U-shaped anchor bolts 4 are pre-buried in the floor, and when the cantilever steel beam 1 is installed, one end of the cantilever steel beam 1 is inserted into the inner side of each U-shaped anchor bolt 4, and a steel pressure plate 5 is installed on each U-shaped anchor bolt 4, the cantilever steel beam 1 is pressed by the steel pressure plate 5, and a double-layer nut is installed on the U-shaped anchor bolt 4 to lock the steel pressure plate 5, one end of the cantilever steel beam 1 is fixed on the floor of the building structure, and the other end of the cantilever steel beam 1 extends outward. In addition, a wooden wedge 6 is installed between the waist plate of the cantilever steel beam 1 and the U-shaped anchor bolt 4 to tighten it, which can improve the stability of the cantilever steel beam 1; an upward pull wire rope is arranged between the cantilever end of the cantilever steel beam 1 and the upper floor, which can improve the stability of the cantilever steel beam 1; when installing the cantilever scaffolding, multiple cantilever steel beams 1 are installed on the floor of the building structure at intervals along the edge of the floor, and the scaffolding is supported by multiple cantilever steel beams 1; the above-mentioned installation structure of the cantilever steel beam 1 on the floor of the building structure is a prior art and will not be repeated here;

[0033] like Figure 2 and Figure 4 As shown, two upright pole positioning mechanisms 7 for positioning the upright poles 3 for installing the cantilever scaffolding are installed at intervals at the cantilever end of the cantilever steel beam 1. Each upright pole positioning mechanism 7 is detachable, the installation position of the upright pole positioning mechanism 7 on the cantilever steel beam 1 is adjustable, and the spacing between the two upright pole positioning mechanisms 7 is adjustable.

[0034] like Figure 2 and Figure 3 As shown, the upright pole positioning mechanism 7 is composed of a top clamping plate 7.1, a bottom clamping plate 7.2, a tension bolt and nut assembly 7.3 and a guide sleeve 7.4;

[0035] like Figures 2 to 5As shown, the top clamping plate 7.1 and the bottom clamping plate 7.2 clamp the cantilever steel beam 1 from the upper and lower sides, and the front end of the top clamping plate 7.1 and the front end of the bottom clamping plate 7.2 and the rear end of the top clamping plate 7.1 and the rear end of the bottom clamping plate 7.2 are respectively connected by two sets of tension bolt nut assemblies 7.3; after tightening the nuts of the tension bolt nut assemblies 7.3, the top clamping plate 7.1 and the bottom clamping plate 7.2 can be tensioned and fixed on the cantilever steel beam 1, and after loosening the nuts of the tension bolt nut assemblies 7.3, the upright pole positioning mechanism 7 can be moved along the length direction of the cantilever steel beam 1 to adjust the installation position of the upright pole positioning mechanism 7 on the cantilever steel beam 1;

[0036] like Figure 5 As shown, a through hole 8 is provided at the center of the top clamping plate 7.1, the bottom end of the guide sleeve 7.4 is welded to the top surface of the top clamping plate 7.1, and the guide sleeve 7.4 is coaxial with the through hole 8, the inner diameter of the guide sleeve 7.4 is equal to the inner diameter of the through hole 8, the vertical pole 3 of the cantilever scaffolding can be downwardly inserted into the guide sleeve 7.4, and the bottom end of the vertical pole 3 is supported on the top surface of the cantilever steel beam 1;

[0037] like Figure 2 and Figure 3 As shown, four ribs 7.6 are arranged between the outer wall of the guide sleeve 7.4 and the top surface of the top clamping plate 7.1, so as to improve the stability of the guide sleeve 7.4; specifically, the four ribs 7.6 are evenly distributed in a circular ring shape with the central axis of the guide sleeve 7.4 as the center, and the ribs 7.6 are welded or integrally formed with the guide sleeve 7.4 and the top clamping plate 7.1;

[0038] like Figures 2 to 5 As shown, two L-shaped angle plates 7.5 symmetrically arranged front and rear are fixed to the bottom surface of the top clamping plate 7.1 and the top surface of the bottom clamping plate 7.2. The top clamping plate 7.1 and the two L-shaped angle plates 7.5 on its bottom surface form a T-shaped slide groove 9 that is slidably matched with the upper flange plate of the cantilever steel beam 1. The bottom clamping plate 7.2 and the two L-shaped angle plates 7.5 on its top surface form a T-shaped slide groove 9 that is slidably matched with the lower flange plate of the cantilever steel beam 1. After loosening the nuts of the tension bolt nut assembly 7.3, the top clamping plate 7.1 can be moved along the upper flange plate of the cantilever steel beam 1, and the bottom clamping plate 7.2 can be moved along the lower flange plate of the cantilever steel beam 1 at the same time; the two L-shaped angle plates 7.5 on the bottom surface of the top clamping plate 7.1 form a T-shaped slide groove 9 that is slidably matched with the upper flange plate of the cantilever steel beam 1. The angle plate 7.5 clamps the upper flange plate of the cantilever steel beam 1 from the front and rear sides, and the two L-shaped angle plates 7.5 on the top surface of the bottom clamp plate 7.2 clamp the lower flange plate of the cantilever steel beam 1 from the front and rear sides, which can prevent the top clamp plate 7.1 or the bottom clamp plate 7.2 from rotating in the horizontal plane, so that the top clamp plate 7.1 and the bottom clamp plate 7.2 can only move along the length direction of the cantilever steel beam 1, which can improve the stability between the top clamp plate 7.1, the bottom clamp plate 7.2 and the cantilever steel beam 1; specifically, the top clamp plate 7.1 and the two L-shaped angle plates 7.5 on its bottom surface are welded or integrally formed, and the bottom clamp plate 7.2 and the two L-shaped angle plates 7.5 on its top surface are welded or integrally formed.

[0039] In this embodiment, Figures 2 to 5 As shown, each of the L-shaped angle plates 7.5 is welded with a hole plate 7.7, and a threaded hole penetrating along the front-to-back direction is opened on the hole plate 7.7, and a tightening bolt 7.8 is installed in the threaded hole on each hole plate 7.7. The tail of the tightening bolt 7.8 can be used to tighten the waist plate of the cantilever steel beam 1. The front and rear two tightening bolts 7.8 clamp the waist plate of the cantilever steel beam 1, which can increase the connection strength between the upright positioning mechanism 7 and the cantilever steel beam 1, and prevent the upright positioning mechanism 7 from moving along the length direction of the cantilever steel beam 1 after the cantilever scaffolding is installed.

[0040] In this embodiment, Figures 2 to 4 As shown, the cantilever end of the cantilever steel beam 1 is sleeved with a square sleeve 10 with one end closed, and the inner wall of the square sleeve 10 is in gap contact with the outer wall of the cantilever steel beam 1, so as to avoid a large gap causing the square sleeve 10 to rotate on the horizontal or vertical plane; a support plate 12 is fixed to the top surface of the square sleeve 10, and the support plate 12 is welded or integrally formed with the square sleeve 10; the front end top surface and the rear end top surface of the support plate 12 are both welded with a wire rope pull ring 11 for connecting the upper pull wire rope, and the two wire rope pull rings 11 are used to connect the two upper pull wire ropes, and the two upper pull wire ropes can improve the stability of the cantilever steel beam 1, and the two upper pull wire ropes are respectively located on the front and rear sides of the vertical pole 3, which can avoid the upper pull wire rope from colliding with the vertical pole 3;

[0041] In the prior art, the wire rope pull ring 11 is welded and fixed to the cantilever end of the cantilever steel beam 1, which makes the wire rope pull ring 11 unable to be removed. In this embodiment, the wire rope pull ring 11 is installed on the square sleeve 10. The wire rope pull ring 11 can be removed from the cantilever steel beam 1 by removing the square sleeve 10 from the cantilever end of the cantilever steel beam 1.

[0042] In this embodiment, the square sleeve 10 is fixedly connected to the waist plate of the cantilever steel beam 1 by a limiting bolt and nut assembly 13, which can improve the stability of the square sleeve 10 and prevent it from falling from the cantilever end of the cantilever steel beam 1; specifically, the square sleeve 10 and the waist plate of the cantilever steel beam 1 are provided with insertion holes that penetrate along the front-to-back direction, which are convenient for installing the limiting bolts of the limiting bolt and nut assembly 13.

[0043] Working principle:

[0044] During the construction process of erecting a cantilever scaffold on a building structure, a cantilever steel beam 1 is fixedly installed on the floor slab of the building structure to support the cantilever scaffold, and two upright pole positioning mechanisms 7 for positioning and installing upright poles 3 of the cantilever scaffold are installed at intervals at the cantilever end of the cantilever steel beam 1;

[0045] When installing the upright positioning mechanism 7 at the cantilever end of the cantilever steel beam 1, the upper flange plate of the cantilever steel beam 1 is inserted into the T-shaped slide groove 9 on the top clamping plate 7.1 at the cantilever end of the cantilever steel beam 1, and the lower flange plate of the cantilever steel beam 1 is inserted into the T-shaped slide groove 9 on the bottom clamping plate 7.2, and the top clamping plate 7.1 and the bottom clamping plate 7.2 are slid along the length direction of the cantilever steel beam 1, and the front end of the top clamping plate 7.1 and the front end of the bottom clamping plate 7.2 and the rear end of the top clamping plate 7.1 and the rear end of the bottom clamping plate 7.2 are They are connected by two sets of tension bolt and nut assemblies 7.3 respectively; after the guide sleeve 7.4 on the top clamping plate 7.1 moves to the designed position, tighten the nuts of each tension bolt and nut assembly 7.3, so that the top clamping plate 7.1 and the bottom clamping plate 7.2 clamp the cantilever steel beam 1, and tighten the clamping bolt 7.8, so that the front and rear two clamping bolts 7.8 clamp the waist plate of the cantilever steel beam 1, so that the vertical rod positioning mechanism 7 is fixed on the cantilever steel beam 1, which has good stability and is convenient for assembly and disassembly;

[0046] The two vertical pole positioning mechanisms 7 on the cantilever end of the cantilever steel beam 1 are fixedly installed according to the above method. After loosening the tension bolt nut assembly 7.3 and the tightening bolt 7.8, the vertical pole positioning mechanism 7 can be easily moved to adjust the installation position of the vertical pole positioning mechanism 7;

[0047] A square sleeve 10 is installed on the cantilever end of the cantilever steel beam 1, and a limit bolt nut assembly 13 is installed between the square sleeve 10 and the waist plate of the cantilever steel beam 1 to fix the square sleeve 10 and prevent it from falling off; two upper pull steel wire ropes are used to improve the stability of the cantilever steel beam 1, one end of the two upper pull steel wire ropes is respectively fixed to the two steel wire rope pull rings 11 on the square sleeve 10, and the other ends of the two upper pull steel wire ropes are respectively fixed to the embedded pull rings on the edge of the upper floor slab;

[0048] When installing the cantilever scaffolding on the cantilever steel beam 1, the two vertical poles 3 of the cantilever scaffolding are respectively installed in the two guide sleeves 7.4 on the cantilever steel beam 1, and the bottom ends of the vertical poles 3 pass through the through holes 8 and abut against the top surface of the cantilever steel beam 1. The vertical poles 3 are supported by the cantilever steel beam 1, and the guide sleeves 7.4 can be used to position and install the vertical poles 3 and stabilize the bottom ends of the vertical poles 3;

[0049] Compared with the prior art, when welding two vertical pole positioning steel bars 2 at the cantilever end of the cantilever steel beam 1, hot work is required, and once the vertical pole positioning steel bars 2 are welded and fixed on the cantilever steel beam 1, it is not convenient to adjust the position. When dismantling the cantilever steel beam 1, the vertical pole positioning steel bars 2 need to be cut and removed, which is more troublesome to operate. In this embodiment, two vertical pole positioning mechanisms 7 are installed on the cantilever steel beam 1 to replace the two vertical pole positioning steel bars 2 welded on the cantilever steel beam 1 in the prior art. The vertical pole positioning mechanism 7 can be detachably installed on the cantilever steel beam 1, which can facilitate the adjustment of the installation position without hot work and is more convenient to operate.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A cantilever support structure of a cantilever scaffold, comprising an I-shaped cantilever steel beam (1), characterized in that: It also includes a pole positioning mechanism (7) which is detachably mounted on the cantilever steel beam (1); The upright pole positioning mechanism (7) is composed of a top clamping plate (7.1), a bottom clamping plate (7.2), a tension bolt and nut assembly (7.3) and a guide sleeve (7.4); The top clamping plate (7.1) and the bottom clamping plate (7.2) clamp the cantilever steel beam (1) from the upper and lower sides, and the front end of the top clamping plate (7.1) and the front end of the bottom clamping plate (7.2) as well as the rear end of the top clamping plate (7.1) and the rear end of the bottom clamping plate (7.2) are respectively connected by at least one set of tension bolt and nut assemblies (7.3); A through hole (8) is provided at the center of the top clamping plate (7.1), the bottom end of the guide sleeve (7.4) is welded to the top surface of the top clamping plate (7.1), the guide sleeve (7.4) and the through hole (8) are coaxial, and the inner diameter of the guide sleeve (7.4) is equal to the inner diameter of the through hole (8).

2. The cantilever support structure of the cantilever scaffolding according to claim 1, characterized in that: The bottom surface of the top clamping plate (7.1) and the top surface of the bottom clamping plate (7.2) are both fixed with two front-to-back symmetrical L-shaped angle plates (7.5); the top clamping plate (7.1) and the two L-shaped angle plates (7.5) on its bottom surface form a T-shaped sliding groove (9) that is slidably matched with the upper flange plate of the cantilever steel beam (1); the bottom clamping plate (7.2) and the two L-shaped angle plates (7.5) on its top surface form a T-shaped sliding groove (9) that is slidably matched with the lower flange plate of the cantilever steel beam (1).

3. The cantilever support structure of the cantilever scaffolding according to claim 1 or 2, characterized in that: A plurality of ribs (7.6) are arranged between the outer side wall of the guide sleeve (7.4) and the top surface of the top clamping plate (7.1).

4. The cantilever support structure of the cantilever scaffolding according to claim 2, characterized in that: A hole plate (7.7) is welded to each of the L-shaped angle plates (7.5), and a threaded hole is provided on the hole plate (7.7) that penetrates in the front-to-back direction. A tightening bolt (7.8) is installed in the threaded hole on each hole plate (7.7), and the tail of the tightening bolt (7.8) can be used to tighten the waist plate of the cantilever steel beam (1).

5. The cantilever support structure of the cantilever scaffolding according to claim 1, characterized in that: The cantilever end of the cantilever steel beam (1) is sleeved with a square sleeve (10) with one end closed, and the inner wall of the square sleeve (10) is in gap contact with the outer wall of the cantilever steel beam (1); a wire rope pull ring (11) for connecting an upward pulling wire rope is installed on the square sleeve (10).

6. The cantilever support structure of the cantilever scaffolding according to claim 5, characterized in that: A support plate (12) is fixed to the top surface of the square sleeve (10), and the support plate (12) and the square sleeve (10) are welded or integrally formed; a wire rope pull ring (11) is welded to the front end top surface and the rear end top surface of the support plate (12).

7. The cantilever support structure of the cantilever scaffolding according to claim 5 or 6, characterized in that: The square sleeve (10) is fixedly connected to the waist plate of the cantilever steel beam (1) via a limiting bolt and nut assembly (13).

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