A cantilever frame system

Abstract

The present invention discloses a cantilever frame system, which belongs to the field of building construction technology, and includes several cantilever frame assemblies; an upper seat is provided at the rear end of the I-beam of the cantilever frame assembly; the upper seat is fixed to the outer side of the upper side wall; the lower seat is fixed to the outer side of the lower side wall; the two ends of the upper pull rod are respectively connected to the I-beam and the lower seat of the cantilever frame assembly located above the cantilever frame assembly corresponding to the I-beam, so as to provide the I-beam with a pulling force from the upper rear side; the two ends of the lower left support rod and the lower right support rod are respectively connected to the I-beam and the lower seat; the lower left support rod and the lower right support rod are symmetrically arranged with respect to the vertical plate of the I-beam, and the intersection of the extended lines of the lower left support rod and the lower right support rod is located on the upward extended surface of the vertical plate of the I-beam. A cantilever frame system of the present invention has more stable and reliable I-beam fixation, multiple force supports and safety protections, is convenient for installation and disassembly, has certain earthquake resistance, and has rust resistance.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and in particular relates to a cantilever frame system. Background Art

[0002] During the construction of a building, in order to set up scaffolding outside the building, a large number of I-beams need to be installed on the outer wall as a support for the scaffolding. However, there are many problems with the cantilever frame system with I-beams as the main component. When most I-beams are installed on the outer wall of the building, the I-beams penetrate the outer wall, the part of the I-beams in the room is fixed on the floor, and the extended part is used as the support of the scaffolding, which not only causes damage to the outer wall of the building and causes safety hazards, but also wastes a lot of steel. The disassembly of I-beams is often destructive and cannot be fully recycled. I-beams are generally used with upper pull rods, which are used to provide the I-beam with a pulling force from the rear and upper part. If the upper pull rod fails, there is no other auxiliary support force system, and the upper end of the upper pull rod will also have a large outward pulling force on the wall; due to the existence of the scaffolding, the upper pull rod will be fixed on one side of the I-beam, rather than in the middle of the I-beam, so that the pulling force will have a torsion on the I-beam, and the I-beam will be unbalanced, resulting in the entire cantilever frame system being unstable and unreliable. The rust prevention method for cantilever frame systems is generally spraying paint. If the paint falls off, it will not have a rust prevention effect. Rust prevention cannot be carried out immediately at the construction site, which poses a safety hazard. When installing the scaffolding, there is only one I-beam as a support point, which causes the scaffolding to shake to a certain extent, posing a safety hazard. The existing cantilever frame system's earthquake resistance and lightning protection capabilities are also insufficient. Summary of the invention

[0003] The purpose of the present invention is to provide a cantilever frame system to address the above shortcomings, and to solve the problems of the existing cantilever frame system, such as the need to improve stability and reliability, inconvenient installation and disassembly, and insufficient earthquake resistance and rust resistance. To achieve the above purpose, the present invention provides the following technical solutions:

[0004] A cantilever frame system, comprising a plurality of cantilever frame assemblies 2 corresponding to a floor slab 1 one by one; the cantilever frame assembly 2 comprises an I-beam 3, an upper tie rod 4, a left lower support rod 5, a right lower support rod 6, an upper seat 7 and a lower seat 8; an upper seat 7 is provided at the rear end of the I-beam 3; the upper seat 7 is fixed to the outer side of an upper side wall 9 adjacent to the floor slab 1; the lower seat 8 is fixed to the outer side of a lower side wall 10 adjacent to the floor slab 1; the two ends of the upper tie rod 4 are respectively connected to the I-beam 3 and the cantilever frame assembly 2 above the corresponding I-beam 3. The lower seat 8 of the cantilever assembly 2 is used to provide a rear and upper pulling force to the I-beam 3; the two ends of the lower left support rod 5 and the lower right support rod 6 are connected to the I-beam 3 and the lower seat 8 respectively; the lower left support rod 5 and the lower right support rod 6 are symmetrically arranged about the vertical plate 11 of the I-beam 3, and the intersection of the extension lines of the lower left support rod 5 and the lower right support rod 6 is located on the upward extension surface of the vertical plate 11 of the I-beam 3; the lower seat 8 is connected to one end of the upper pull rod 4 of the cantilever assembly 2 located below the cantilever assembly 2 corresponding to the lower seat 8. It can be seen from the above structure that during the construction of a multi-story building, a cantilever assembly 2 is arranged near each floor slab 1, and the cantilever assembly 2 corresponding to the top floor slab 1 and the bottom floor slab 1 are arranged in sequence from top to bottom along a vertical direction of the building, forming the cantilever system; the cantilever system is correspondingly arranged in multiple vertical directions, that is, a complete external support system is formed. The wall extending upward adjacent to the floor 1 is the upper side wall 9, and the wall extending downward adjacent to the floor 1 is the lower side wall 10; an upper seat 7 is provided at the rear end of the I-beam 3; the upper seat 7 is fixed to the outer side of the upper side wall 9 adjacent to the floor 1; the I-beam 3 is fixed to the outer side of the upper side wall 9 through the upper seat 7, and the upper seat 7 has a large area and is more reliably fixed on the upper side wall 9; the lower seat 8 is fixed to the outer side of the lower side wall 10 adjacent to the floor 1; the two ends of the upper pull rod 4 are respectively connected to the I-beam 3 and the lower seat 8 of the cantilever frame assembly 2 located above the cantilever frame assembly 2 corresponding to the I-beam 3, so as to provide a pulling force from the rear and upper part to the I-beam 3; since the upper end of the upper pull rod 4 corresponds to the lower seat 8 of the cantilever frame assembly 2 above, the pulling angle of the upper pull rod 4 on the I-beam 3 is closer to 90°, which increases the lever arm of the pulling force of the upper pull rod 4, reduces the pulling force borne by the upper pull rod 4, and makes the upper pull rod 4 more reliable and stable.The two ends of the lower left support rod 5 and the lower right support rod 6 are connected to the I-beam 3 and the lower seat 8 respectively; the lower left support rod 5 and the lower right support rod 6 are symmetrically arranged about the vertical plate 11 of the I-beam 3, and the intersection of the extended lines of the lower left support rod 5 and the lower right support rod 6 is located on the upward extended surface of the vertical plate 11 of the I-beam 3; the force borne by the I-beam 3 when working is mainly the vertical downward pressure passing through the vertical plate 11 of the I-beam 3, the lower left support rod 5 provides the I-beam 3 with a forward, rightward and upward supporting force, and the lower right support rod 6 provides the I-beam 3 with a forward, leftward and upward supporting force. The upward component of the combined force is sufficient to partially share the downward pressure of the I-beam 3 during operation, and the forward component of the combined force can partially offset the backward pulling component of the upper pull rod 4 on the I-beam 3, reducing the pressure of the I-beam 3 on the upper side wall 9; in addition, each upper pull rod 4 will produce an outward pulling force on the lower seat 8 at the upper end, and at the same time, each lower seat 8 will also be connected to the lower end of the left lower support rod 5 and the right lower support rod 6, which will produce a force pressing the lower seat 8 toward the lower side wall 10, and this force will partially offset the outward pulling force produced by the upper pull rod 4 on the lower seat 8 at the upper end, so that the force on the lower seat 8 is balanced. The intersection of the extended lines of the lower left support rod 5 and the lower right support rod 6 is located on the upward extended surface of the vertical plate 11 of the I-beam 3. The force borne by the I-beam 3 during operation is mainly directed vertically downward through the vertical plate 11 of the I-beam 3. Even if part of the force deviates from the vertical plate 11, it will fall between the lower left support rod 5 and the lower right support rod 6. The lower left support rod 5 and the lower right support rod 6 can share and offset the force generated by the deviation, thereby ensuring the stability and reliability of the cantilever frame system.

[0005] Furthermore, the cantilever frame assembly 2 also includes an upper right-angle plate 12, a lower right-angle plate 13 and a plurality of connecting assemblies 14; the side plates of the upper right-angle plate 12 and the upper seat 7 are clamped to the inner and outer sides of the upper side wall 9 through a plurality of connecting assemblies 14; the side plates of the lower right-angle plate 13 and the lower seat 8 are clamped to the inner and outer sides of the lower side wall 10 through a plurality of connecting assemblies 14; the bottom plates of the upper right-angle plate 12 and the lower right-angle plate 13 are clamped to the upper and lower sides of the floor slab 1 through a plurality of connecting assemblies 14. It can be seen from the above structure that the upper right-angle plate 12 and the lower right-angle plate 13 both include a bottom plate and a side plate; the upper seat 7 is firmly fixed on the upper side wall 9. Even if the upper side wall 9 is damaged, the force of the upper seat 7 can be transmitted to the floor 1 through the upper right-angle plate 12 to prevent the upper seat 7 from falling off; the lower seat 8 is firmly fixed on the lower side wall 10. Even if the lower side wall 10 is damaged, the force of the lower seat 8 can be transmitted to the floor 1 through the lower right-angle plate 13 to prevent the lower seat 8 from falling off; the upper seat 7, the lower seat 8, the upper right-angle plate 12, the lower right-angle plate 13 and the upper side wall 9, the lower side wall 10, and the floor 1 are connected as a whole. If any one of them is damaged, it will not affect the normal operation of the I-beam 3, and it plays a multiple mutual insurance role, making the cantilever frame system more stable, reliable and safe.

[0006] Furthermore, the connecting assembly 14 includes a sleeve 15, a bolt 16 and a nut 17; the sleeve 15 passes through and is embedded in the upper side wall 9 or the lower side wall 10 or the floor 1, and the sleeve 15 is welded to the steel bars in the upper side wall 9 or the lower side wall 10 or the floor 1; the bolt 16 is passed through the sleeve 15, and a nut 17 for locking is screwed on the bolt 16. It can be seen from the above structure that there are four connecting components 14 connecting the side panels of the upper right-angle plate 12 and the upper seat 7. The sleeve 15 of the connecting component 14 is pre-buried in the upper side wall 9 and welded to the steel bars in the upper side wall 9 to ensure that the sleeve will not fall off. The inner and outer ends of the sleeve 15 are flush with the inner and outer side surfaces of the upper side wall 9. The upper seat 7 contacts the outer end of the sleeve 15, and the side panel of the upper right-angle plate 12 contacts the inner end of the sleeve 15. The bolts 16 pass through the upper seat 7, the sleeve 15, and the side panels of the upper right-angle plate 12 in sequence, and then the nuts 17 are screwed on the bolts 16 to tighten the side panels of the upper right-angle plate 12, so that the side panels of the upper right-angle plate 12 and the upper seat 7 clamp the inner and outer sides of the upper side wall 9. There are four connecting components 14 connecting the side panels of the lower right-angle plate 13 and the lower seat 8. The sleeve 15 of the connecting component 14 is pre-buried in the lower side wall 10 and welded to the steel bars in the lower side wall 10 to ensure that the sleeve will not fall off. The inner and outer ends of the sleeve 15 are flush with the inner and outer side surfaces of the lower side wall 10. The lower seat 8 contacts the outer end of the sleeve 15, and the side panel of the lower right-angle plate 13 contacts the inner end of the sleeve 15. The bolts 16 pass through the lower seat 8, the sleeve 15, and the side panels of the lower right-angle plate 13 in sequence, and then the nuts 17 are screwed on the bolts 16 to tighten the side panels of the lower right-angle plate 13, so that the side panels of the lower right-angle plate 13 and the lower seat 8 clamp the inner and outer sides of the lower side wall 10. There are four connecting components 14 connecting the bottom plate of the upper right angle plate 12 and the bottom plate of the lower right angle plate 13. The sleeve 15 of the connecting component 14 is pre-buried in the floor 1 and welded to the steel bar in the floor 1 to ensure that the sleeve will not fall off. The upper and lower ends of the sleeve 15 are flush with the upper and lower surfaces of the floor 1. The bottom plate of the upper right angle plate 12 contacts the upper end of the sleeve 15, and the bottom plate of the lower right angle plate 13 contacts the lower end of the sleeve 15. The bolts 16 pass through the bottom plate of the upper right angle plate 12, the sleeve 15, and the bottom plate of the lower right angle plate 13 in sequence, and then the nuts 17 are screwed on the bolts 16 to press the bottom plate of the lower right angle plate 13, so that the bottom plates of the upper right angle plate 12 and the lower right angle plate 13 clamp the upper and lower surfaces of the floor 1. The connection assembly 14 is detachable, which facilitates the overall recovery of the cantilever frame assembly 2. The sleeve 15 causes little damage to the wall and is more firmly welded to the steel bars. In addition, after the cantilever frame assembly 2 is struck by lightning, the sleeve 15 can also conduct electricity into the steel bars and transmit it to the ground, thereby having an anti-lightning effect.

[0007] Furthermore, the sleeve 15 has a truncated cone 18 at both ends, and the large end of the truncated cone 18 is exposed. As can be seen from the above structure, the large end of the truncated cone 18 is flush with the wall surface, so that the sleeve 15 is more difficult to be pulled out of the wall and is completely integrated with the wall.

[0008] Furthermore, a hollow portion is provided inside the bolt 16 of the connection assembly 14 corresponding to the floor slab 1; a zinc strip 19 is screwed on the hollow portion through a thread. As can be seen from the above structure, by arranging the zinc strip 19 on the hollow portion, the entire cantilever frame assembly 2 will not rust, and when the zinc strip 19 is exhausted, it can be easily replaced indoors. Compared with the anti-rust method of spraying paint, it can be remedied on the spot, with good anti-rust effect and convenient replacement.

[0009] Furthermore, two supporting steel pipes 20 are arranged between the I-beams 3 of the upper and lower adjacent cantilever frame assemblies 2; the upper end of the supporting steel pipe 20 is provided with an upper flange 21, and the lower end is provided with a lower flange 22; the lower flange 22 is detachably fixed on the top plate 23 of the I-beam 3 located below; there is a gap between the upper flange 21 and the bottom plate 24 of the I-beam 3 located above; an adjustment assembly 25 is arranged on the upper flange 21; the adjustment assembly 25 is used to fix the upper flange 21 and the bottom plate 24 of the I-beam 3 located above. It can be seen from the above structure that the two supporting steel pipes 20 are supported on the top plate 23 of the I-beam 3 below, one in front and one behind, and the downward pressure of the supporting steel pipes 20 passes through the vertical plate 11 of the I-beam 3; the two supporting steel pipes 20 serve as supports, and cooperate with the supporting steel pipes 20 of other cantilever frame systems, and then the scaffolding is built. The lower flange 22 at the lower end of the supporting steel pipe 20 is fixed to the top plate 23 of the I-beam 3 below; the upper flange 21 at the upper end of the supporting steel pipe 20 is fixed by the adjusting component 25 and the bottom plate 24 of the I-beam 3 located above, so that the upper and lower ends of the supporting steel pipe 20 and the upper and lower I-beams 3 are firmly fixed, so that the supporting steel pipe 20 will not shake; there is a gap between the upper flange 21 and the bottom plate 24 of the I-beam 3 located above, so as to facilitate the supporting steel pipe 20 to be placed between the upper and lower I-beams 3, and then the adjusting component 25 is adjusted and fixed.

[0010] Furthermore, the adjustment assembly 25 includes a plurality of bolt assemblies 26; the bolt assembly 26 includes an adjustment bolt 27, a first nut 28, a second nut 37 and a third nut 29; the adjustment bolt 27 penetrates the bottom plate 24 and the upper flange 21 of the upper I-beam 3 from top to bottom; the first nut 28 is screwed on the adjustment bolt 27 and pressed on the lower surface of the bottom plate 24 of the upper I-beam 3; the second nut 37 is screwed on the adjustment bolt 27 and pressed on the upper surface of the upper flange 21; the third nut 29 is screwed on the adjustment bolt 27 and pressed on the lower surface of the upper flange 21. As can be seen from the above structure, the adjusting bolt 27 penetrates the bottom plate 24 and the upper flange 21 of the upper I-beam 3 from top to bottom, and then the first nut 28 is rotated first to press the first nut 28 on the lower surface of the bottom plate 24 of the upper I-beam 3; then the second nut 37 is rotated to press the second nut 37 on the upper surface of the upper flange 21, at this time, the upper I-beam 3 can transmit force to the lower I-beam 3 through the supporting steel pipe 20; then the third nut 29 is rotated to press the third nut 29 on the lower surface of the upper flange 21. The I-beams 3 are also preventively supported by the supporting steel pipe 20, and can transmit force to the lower I-beam 3 after the I-beam 3 itself breaks, and multiple support protections ensure the reliability and safety of the cantilever frame assembly 2.

[0011] Further, the upper pull rod 4 includes an upper rod 30, a lower rod 31 and a turnbuckle body 32; a lower threaded column 33 is provided at the lower end of the upper rod 30; an upper threaded hole is provided at the upper end of the turnbuckle body 32 to match the lower threaded column 33; an upper threaded column 34 is provided at the upper end of the lower rod 31; a lower threaded hole is provided at the lower end of the turnbuckle body 32 to match the upper threaded column 34; a left curved portion 35 protruding to the left is provided on the upper rod 30; and a right curved portion 36 protruding to the right is provided on the lower rod 31. As can be seen from the above structure, the turnbuckle body 32 can adjust the distance between the upper rod 30 and the lower rod 31, so that the upper pull rod 4 can fully pull the I-beam 3; a left curved portion 35 protruding to the left is provided on the upper rod 30, and a right curved portion 36 protruding to the right is provided on the lower rod 31. The left curved portion 35 and the right curved portion 36 can absorb vibration energy when vibration occurs, improve the anti-seismic ability, and improve the safety performance of the cantilever frame assembly 2.

[0012] Furthermore, the left curved portion 35 surrounds the rear support steel pipe 20; the right curved portion 36 surrounds the front support steel pipe 20. As can be seen from the above structure, the left curved portion 35 and the right curved portion 36 bypass the support steel pipe 20, so that the upper pull rod 4 can apply force to the middle of the I-beam 3 without biased torque.

[0013] Further, the lower left support rod 5 and the lower right support rod 6 are both turnbuckle-type adjustable diagonal rods. As can be seen from the above structure, the turnbuckle-type adjustable diagonal rod can adjust the length to ensure that the lower left support rod 5 and the lower right support rod 6 fully support the I-beam 3.

[0014] The beneficial effects of the present invention are:

[0015] The present invention discloses a cantilever frame system, which belongs to the field of building construction technology, and includes several cantilever frame assemblies; an upper seat is provided at the rear end of the I-beam of the cantilever frame assembly; the upper seat is fixed to the outer side of the upper side wall; the lower seat is fixed to the outer side of the lower side wall; the two ends of the upper pull rod are respectively connected to the I-beam and the lower seat of the cantilever frame assembly located above the cantilever frame assembly corresponding to the I-beam, so as to provide the I-beam with a pulling force from the upper rear side; the two ends of the lower left support rod and the lower right support rod are respectively connected to the I-beam and the lower seat; the lower left support rod and the lower right support rod are symmetrically arranged with respect to the vertical plate of the I-beam, and the intersection of the extended lines of the lower left support rod and the lower right support rod is located on the upward extended surface of the vertical plate of the I-beam. A cantilever frame system of the present invention has more stable and reliable I-beam fixation, multiple force supports and safety protections, is convenient for installation and disassembly, has certain earthquake resistance, and has rust resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the cantilever frame system of the present invention;

[0017] Figure 2 It is a schematic diagram of the structure of the cantilever frame assembly of the present invention;

[0018] Figure 3 It is a schematic diagram of the structure in which the upper seat of the present invention is fixed to the upper side wall;

[0019] Figure 4 It is a schematic diagram of the structure in which the bottom plate of the upper right-angle plate and the bottom plate of the lower right-angle plate clamp the floor slab in the present invention;

[0020] Figure 5 It is a schematic diagram of the structure supporting the top and bottom of the steel pipe;

[0021] Figure 6 It is a schematic diagram of the structure in which the lower left support rod and the lower right support rod support the I-beam;

[0022] Figure 7 Schematic diagram of the upper pull rod structure;

[0023] In the accompanying drawings: 1-floor, 2-cantilever frame assembly, 3-I-beam, 4-upper pull rod, 5-lower left support rod, 6-lower right support rod, 7-upper seat, 8-lower seat, 9-upper side wall, 10-lower side wall, 11-vertical plate, 12-upper right-angle plate, 13-lower right-angle plate, 14-connecting assembly, 15-sleeve, 16-bolt, 17-nut, 18-truncated cone, 19-zinc strip, 20-support steel pipe, 21-upper flange, 22-lower flange, 23-top plate, 24-bottom plate, 25-adjustment assembly, 26-bolt assembly, 27-adjustment bolt, 28-first nut, 29-third nut, 30-upper rod, 31-lower rod, 32-turnbuckle, 33-lower threaded column, 34-upper threaded column, 35-left curved portion, 36-right curved portion, 37-second nut. DETAILED DESCRIPTION

[0024] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods, but the present invention is not limited to the following embodiments.

[0025] Embodiment 1:

[0026] See attached Figures 1 to 7A cantilever frame system, comprising a plurality of cantilever frame assemblies 2 corresponding to a floor slab 1; the cantilever frame assembly 2 comprises an I-beam 3, an upper tie rod 4, a left lower support rod 5, a right lower support rod 6, an upper seat 7 and a lower seat 8; an upper seat 7 is provided at the rear end of the I-beam 3; the upper seat 7 is fixed to the outer side of an upper side wall 9 adjacent to the floor slab 1; the lower seat 8 is fixed to the outer side of a lower side wall 10 adjacent to the floor slab 1; the two ends of the upper tie rod 4 are respectively connected to the I-beam 3 and the cantilever frame assembly 2 located above the corresponding I-beam 3. The lower seat 8 of the cantilever assembly 2 is used to provide a rear and upper pulling force to the I-beam 3; the two ends of the lower left support rod 5 and the lower right support rod 6 are connected to the I-beam 3 and the lower seat 8 respectively; the lower left support rod 5 and the lower right support rod 6 are symmetrically arranged about the vertical plate 11 of the I-beam 3, and the intersection of the extension lines of the lower left support rod 5 and the lower right support rod 6 is located on the upward extension surface of the vertical plate 11 of the I-beam 3; the lower seat 8 is connected to one end of the upper pull rod 4 of the cantilever assembly 2 located below the cantilever assembly 2 corresponding to the lower seat 8. It can be seen from the above structure that during the construction of a multi-story building, a cantilever assembly 2 is arranged near each floor slab 1, and the cantilever assembly 2 corresponding to the top floor slab 1 and the bottom floor slab 1 are arranged in sequence from top to bottom along a vertical direction of the building, forming the cantilever system; the cantilever system is correspondingly arranged in multiple vertical directions, that is, a complete external support system is formed. The wall extending upward adjacent to the floor 1 is the upper side wall 9, and the wall extending downward adjacent to the floor 1 is the lower side wall 10; an upper seat 7 is provided at the rear end of the I-beam 3; the upper seat 7 is fixed to the outer side of the upper side wall 9 adjacent to the floor 1; the I-beam 3 is fixed to the outer side of the upper side wall 9 through the upper seat 7, and the upper seat 7 has a large area and is more reliably fixed on the upper side wall 9; the lower seat 8 is fixed to the outer side of the lower side wall 10 adjacent to the floor 1; the two ends of the upper pull rod 4 are respectively connected to the I-beam 3 and the lower seat 8 of the cantilever frame assembly 2 located above the cantilever frame assembly 2 corresponding to the I-beam 3, so as to provide a pulling force from the rear and upper part to the I-beam 3; since the upper end of the upper pull rod 4 corresponds to the lower seat 8 of the cantilever frame assembly 2 above, the pulling angle of the upper pull rod 4 on the I-beam 3 is closer to 90°, which increases the lever arm of the pulling force of the upper pull rod 4, reduces the pulling force borne by the upper pull rod 4, and makes the upper pull rod 4 more reliable and stable.The two ends of the lower left support rod 5 and the lower right support rod 6 are connected to the I-beam 3 and the lower seat 8 respectively; the lower left support rod 5 and the lower right support rod 6 are symmetrically arranged about the vertical plate 11 of the I-beam 3, and the intersection of the extended lines of the lower left support rod 5 and the lower right support rod 6 is located on the upward extended surface of the vertical plate 11 of the I-beam 3; the force borne by the I-beam 3 when working is mainly the vertical downward pressure passing through the vertical plate 11 of the I-beam 3, the lower left support rod 5 provides the I-beam 3 with a forward, rightward and upward supporting force, and the lower right support rod 6 provides the I-beam 3 with a forward, leftward and upward supporting force. The upward component of the combined force is sufficient to partially share the downward pressure of the I-beam 3 during operation, and the forward component of the combined force can partially offset the backward pulling component of the upper pull rod 4 on the I-beam 3, reducing the pressure of the I-beam 3 on the upper side wall 9; in addition, each upper pull rod 4 will produce an outward pulling force on the lower seat 8 at the upper end, and at the same time, each lower seat 8 will also be connected to the lower end of the left lower support rod 5 and the right lower support rod 6, which will produce a force pressing the lower seat 8 toward the lower side wall 10, and this force will partially offset the outward pulling force produced by the upper pull rod 4 on the lower seat 8 at the upper end, so that the force on the lower seat 8 is balanced. The intersection of the extended lines of the lower left support rod 5 and the lower right support rod 6 is located on the upward extended surface of the vertical plate 11 of the I-beam 3. The force borne by the I-beam 3 during operation is mainly directed vertically downward through the vertical plate 11 of the I-beam 3. Even if part of the force deviates from the vertical plate 11, it will fall between the lower left support rod 5 and the lower right support rod 6. The lower left support rod 5 and the lower right support rod 6 can share and offset the force generated by the deviation, thereby ensuring the stability and reliability of the cantilever frame system.

[0027] Embodiment 2:

[0028] See attached Figures 1 to 7A cantilever frame system, comprising a plurality of cantilever frame assemblies 2 corresponding to a floor slab 1; the cantilever frame assembly 2 comprises an I-beam 3, an upper tie rod 4, a left lower support rod 5, a right lower support rod 6, an upper seat 7 and a lower seat 8; an upper seat 7 is provided at the rear end of the I-beam 3; the upper seat 7 is fixed to the outer side of an upper side wall 9 adjacent to the floor slab 1; the lower seat 8 is fixed to the outer side of a lower side wall 10 adjacent to the floor slab 1; the two ends of the upper tie rod 4 are respectively connected to the I-beam 3 and the cantilever frame assembly 2 located above the corresponding I-beam 3. The lower seat 8 of the cantilever assembly 2 is used to provide a rear and upper pulling force to the I-beam 3; the two ends of the lower left support rod 5 and the lower right support rod 6 are connected to the I-beam 3 and the lower seat 8 respectively; the lower left support rod 5 and the lower right support rod 6 are symmetrically arranged about the vertical plate 11 of the I-beam 3, and the intersection of the extension lines of the lower left support rod 5 and the lower right support rod 6 is located on the upward extension surface of the vertical plate 11 of the I-beam 3; the lower seat 8 is connected to one end of the upper pull rod 4 of the cantilever assembly 2 located below the cantilever assembly 2 corresponding to the lower seat 8. It can be seen from the above structure that during the construction of a multi-story building, a cantilever assembly 2 is arranged near each floor slab 1, and the cantilever assembly 2 corresponding to the top floor slab 1 and the bottom floor slab 1 are arranged in sequence from top to bottom along a vertical direction of the building, forming the cantilever system; the cantilever system is correspondingly arranged in multiple vertical directions, that is, a complete external support system is formed. The wall extending upward adjacent to the floor 1 is the upper side wall 9, and the wall extending downward adjacent to the floor 1 is the lower side wall 10; an upper seat 7 is provided at the rear end of the I-beam 3; the upper seat 7 is fixed to the outer side of the upper side wall 9 adjacent to the floor 1; the I-beam 3 is fixed to the outer side of the upper side wall 9 through the upper seat 7, and the upper seat 7 has a large area and is more reliably fixed on the upper side wall 9; the lower seat 8 is fixed to the outer side of the lower side wall 10 adjacent to the floor 1; the two ends of the upper pull rod 4 are respectively connected to the I-beam 3 and the lower seat 8 of the cantilever frame assembly 2 located above the cantilever frame assembly 2 corresponding to the I-beam 3, so as to provide a pulling force from the rear and upper part to the I-beam 3; since the upper end of the upper pull rod 4 corresponds to the lower seat 8 of the cantilever frame assembly 2 above, the pulling angle of the upper pull rod 4 on the I-beam 3 is closer to 90°, which increases the lever arm of the pulling force of the upper pull rod 4, reduces the pulling force borne by the upper pull rod 4, and makes the upper pull rod 4 more reliable and stable.The two ends of the lower left support rod 5 and the lower right support rod 6 are connected to the I-beam 3 and the lower seat 8 respectively; the lower left support rod 5 and the lower right support rod 6 are symmetrically arranged about the vertical plate 11 of the I-beam 3, and the intersection of the extended lines of the lower left support rod 5 and the lower right support rod 6 is located on the upward extended surface of the vertical plate 11 of the I-beam 3; the force borne by the I-beam 3 when working is mainly the vertical downward pressure passing through the vertical plate 11 of the I-beam 3, the lower left support rod 5 provides the I-beam 3 with a forward, rightward and upward supporting force, and the lower right support rod 6 provides the I-beam 3 with a forward, leftward and upward supporting force. The upward component of the combined force is sufficient to partially share the downward pressure of the I-beam 3 during operation, and the forward component of the combined force can partially offset the backward pulling component of the upper pull rod 4 on the I-beam 3, reducing the pressure of the I-beam 3 on the upper side wall 9; in addition, each upper pull rod 4 will produce an outward pulling force on the lower seat 8 at the upper end, and at the same time, each lower seat 8 will also be connected to the lower end of the left lower support rod 5 and the right lower support rod 6, which will produce a force pressing the lower seat 8 toward the lower side wall 10, and this force will partially offset the outward pulling force produced by the upper pull rod 4 on the lower seat 8 at the upper end, so that the force on the lower seat 8 is balanced. The intersection of the extended lines of the lower left support rod 5 and the lower right support rod 6 is located on the upward extended surface of the vertical plate 11 of the I-beam 3. The force borne by the I-beam 3 during operation is mainly directed vertically downward through the vertical plate 11 of the I-beam 3. Even if part of the force deviates from the vertical plate 11, it will fall between the lower left support rod 5 and the lower right support rod 6. The lower left support rod 5 and the lower right support rod 6 can share and offset the force generated by the deviation, thereby ensuring the stability and reliability of the cantilever frame system.

[0029] The cantilever frame assembly 2 also includes an upper right-angle plate 12, a lower right-angle plate 13 and a plurality of connecting assemblies 14; the side plates of the upper right-angle plate 12 and the upper seat 7 are clamped to the inner and outer sides of the upper side wall 9 through a plurality of connecting assemblies 14; the side plates of the lower right-angle plate 13 and the lower seat 8 are clamped to the inner and outer sides of the lower side wall 10 through a plurality of connecting assemblies 14; the bottom plates of the upper right-angle plate 12 and the lower right-angle plate 13 are clamped to the upper and lower sides of the floor slab 1 through a plurality of connecting assemblies 14. It can be seen from the above structure that the upper right-angle plate 12 and the lower right-angle plate 13 both include a bottom plate and a side plate; the upper seat 7 is firmly fixed on the upper side wall 9. Even if the upper side wall 9 is damaged, the force of the upper seat 7 can be transmitted to the floor 1 through the upper right-angle plate 12 to prevent the upper seat 7 from falling off; the lower seat 8 is firmly fixed on the lower side wall 10. Even if the lower side wall 10 is damaged, the force of the lower seat 8 can be transmitted to the floor 1 through the lower right-angle plate 13 to prevent the lower seat 8 from falling off; the upper seat 7, the lower seat 8, the upper right-angle plate 12, the lower right-angle plate 13 and the upper side wall 9, the lower side wall 10, and the floor 1 are connected as a whole. If any one of them is damaged, it will not affect the normal operation of the I-beam 3, and it plays a multiple mutual insurance role, making the cantilever frame system more stable, reliable and safe.

[0030] Embodiment three:

[0031] See attached Figures 1 to 7A cantilever frame system, comprising a plurality of cantilever frame assemblies 2 corresponding to a floor slab 1; the cantilever frame assembly 2 comprises an I-beam 3, an upper tie rod 4, a left lower support rod 5, a right lower support rod 6, an upper seat 7 and a lower seat 8; an upper seat 7 is provided at the rear end of the I-beam 3; the upper seat 7 is fixed to the outer side of an upper side wall 9 adjacent to the floor slab 1; the lower seat 8 is fixed to the outer side of a lower side wall 10 adjacent to the floor slab 1; the two ends of the upper tie rod 4 are respectively connected to the I-beam 3 and the cantilever frame assembly 2 located above the corresponding I-beam 3. The lower seat 8 of the cantilever assembly 2 is used to provide a rear and upper pulling force to the I-beam 3; the two ends of the lower left support rod 5 and the lower right support rod 6 are connected to the I-beam 3 and the lower seat 8 respectively; the lower left support rod 5 and the lower right support rod 6 are symmetrically arranged about the vertical plate 11 of the I-beam 3, and the intersection of the extension lines of the lower left support rod 5 and the lower right support rod 6 is located on the upward extension surface of the vertical plate 11 of the I-beam 3; the lower seat 8 is connected to one end of the upper pull rod 4 of the cantilever assembly 2 located below the cantilever assembly 2 corresponding to the lower seat 8. It can be seen from the above structure that during the construction of a multi-story building, a cantilever assembly 2 is arranged near each floor slab 1, and the cantilever assembly 2 corresponding to the top floor slab 1 and the bottom floor slab 1 are arranged in sequence from top to bottom along a vertical direction of the building, forming the cantilever system; the cantilever system is correspondingly arranged in multiple vertical directions, that is, a complete external support system is formed. The wall extending upward adjacent to the floor 1 is the upper side wall 9, and the wall extending downward adjacent to the floor 1 is the lower side wall 10; an upper seat 7 is provided at the rear end of the I-beam 3; the upper seat 7 is fixed to the outer side of the upper side wall 9 adjacent to the floor 1; the I-beam 3 is fixed to the outer side of the upper side wall 9 through the upper seat 7, and the upper seat 7 has a large area and is more reliably fixed on the upper side wall 9; the lower seat 8 is fixed to the outer side of the lower side wall 10 adjacent to the floor 1; the two ends of the upper pull rod 4 are respectively connected to the I-beam 3 and the lower seat 8 of the cantilever frame assembly 2 located above the cantilever frame assembly 2 corresponding to the I-beam 3, so as to provide a pulling force from the rear and upper part to the I-beam 3; since the upper end of the upper pull rod 4 corresponds to the lower seat 8 of the cantilever frame assembly 2 above, the pulling angle of the upper pull rod 4 on the I-beam 3 is closer to 90°, which increases the lever arm of the pulling force of the upper pull rod 4, reduces the pulling force borne by the upper pull rod 4, and makes the upper pull rod 4 more reliable and stable.The two ends of the lower left support rod 5 and the lower right support rod 6 are connected to the I-beam 3 and the lower seat 8 respectively; the lower left support rod 5 and the lower right support rod 6 are symmetrically arranged about the vertical plate 11 of the I-beam 3, and the intersection of the extended lines of the lower left support rod 5 and the lower right support rod 6 is located on the upward extended surface of the vertical plate 11 of the I-beam 3; the force borne by the I-beam 3 when working is mainly the vertical downward pressure passing through the vertical plate 11 of the I-beam 3, the lower left support rod 5 provides the I-beam 3 with a forward, rightward and upward supporting force, and the lower right support rod 6 provides the I-beam 3 with a forward, leftward and upward supporting force. The upward component of the combined force is sufficient to partially share the downward pressure of the I-beam 3 during operation, and the forward component of the combined force can partially offset the backward pulling component of the upper pull rod 4 on the I-beam 3, reducing the pressure of the I-beam 3 on the upper side wall 9; in addition, each upper pull rod 4 will produce an outward pulling force on the lower seat 8 at the upper end, and at the same time, each lower seat 8 will also be connected to the lower end of the left lower support rod 5 and the right lower support rod 6, which will produce a force pressing the lower seat 8 toward the lower side wall 10, and this force will partially offset the outward pulling force produced by the upper pull rod 4 on the lower seat 8 at the upper end, so that the force on the lower seat 8 is balanced. The intersection of the extended lines of the lower left support rod 5 and the lower right support rod 6 is located on the upward extended surface of the vertical plate 11 of the I-beam 3. The force borne by the I-beam 3 during operation is mainly directed vertically downward through the vertical plate 11 of the I-beam 3. Even if part of the force deviates from the vertical plate 11, it will fall between the lower left support rod 5 and the lower right support rod 6. The lower left support rod 5 and the lower right support rod 6 can share and offset the force generated by the deviation, thereby ensuring the stability and reliability of the cantilever frame system.

[0032] The cantilever frame assembly 2 also includes an upper right-angle plate 12, a lower right-angle plate 13 and a plurality of connecting assemblies 14; the side plates of the upper right-angle plate 12 and the upper seat 7 are clamped to the inner and outer sides of the upper side wall 9 through a plurality of connecting assemblies 14; the side plates of the lower right-angle plate 13 and the lower seat 8 are clamped to the inner and outer sides of the lower side wall 10 through a plurality of connecting assemblies 14; the bottom plates of the upper right-angle plate 12 and the lower right-angle plate 13 are clamped to the upper and lower sides of the floor slab 1 through a plurality of connecting assemblies 14. It can be seen from the above structure that the upper right-angle plate 12 and the lower right-angle plate 13 both include a bottom plate and a side plate; the upper seat 7 is firmly fixed on the upper side wall 9. Even if the upper side wall 9 is damaged, the force of the upper seat 7 can be transmitted to the floor 1 through the upper right-angle plate 12 to prevent the upper seat 7 from falling off; the lower seat 8 is firmly fixed on the lower side wall 10. Even if the lower side wall 10 is damaged, the force of the lower seat 8 can be transmitted to the floor 1 through the lower right-angle plate 13 to prevent the lower seat 8 from falling off; the upper seat 7, the lower seat 8, the upper right-angle plate 12, the lower right-angle plate 13 and the upper side wall 9, the lower side wall 10, and the floor 1 are connected as a whole. If any one of them is damaged, it will not affect the normal operation of the I-beam 3, and it plays a multiple mutual insurance role, making the cantilever frame system more stable, reliable and safe.

[0033] The connecting assembly 14 includes a sleeve 15, a bolt 16 and a nut 17; the sleeve 15 passes through and is embedded in the upper side wall 9 or the lower side wall 10 or the floor slab 1, and the sleeve 15 is welded to the steel bars in the upper side wall 9 or the lower side wall 10 or the floor slab 1; the bolt 16 is passed through the sleeve 15, and a nut 17 for locking is screwed on the bolt 16. It can be seen from the above structure that there are four connecting components 14 connecting the side panels of the upper right-angle plate 12 and the upper seat 7. The sleeve 15 of the connecting component 14 is pre-buried in the upper side wall 9 and welded to the steel bars in the upper side wall 9 to ensure that the sleeve will not fall off. The inner and outer ends of the sleeve 15 are flush with the inner and outer side surfaces of the upper side wall 9. The upper seat 7 contacts the outer end of the sleeve 15, and the side panel of the upper right-angle plate 12 contacts the inner end of the sleeve 15. The bolts 16 pass through the upper seat 7, the sleeve 15, and the side panels of the upper right-angle plate 12 in sequence, and then the nuts 17 are screwed on the bolts 16 to tighten the side panels of the upper right-angle plate 12, so that the side panels of the upper right-angle plate 12 and the upper seat 7 clamp the inner and outer sides of the upper side wall 9. There are four connecting components 14 connecting the side panels of the lower right-angle plate 13 and the lower seat 8. The sleeve 15 of the connecting component 14 is pre-buried in the lower side wall 10 and welded to the steel bars in the lower side wall 10 to ensure that the sleeve will not fall off. The inner and outer ends of the sleeve 15 are flush with the inner and outer side surfaces of the lower side wall 10. The lower seat 8 contacts the outer end of the sleeve 15, and the side panel of the lower right-angle plate 13 contacts the inner end of the sleeve 15. The bolts 16 pass through the lower seat 8, the sleeve 15, and the side panels of the lower right-angle plate 13 in sequence, and then the nuts 17 are screwed on the bolts 16 to tighten the side panels of the lower right-angle plate 13, so that the side panels of the lower right-angle plate 13 and the lower seat 8 clamp the inner and outer sides of the lower side wall 10. There are four connecting components 14 connecting the bottom plate of the upper right angle plate 12 and the bottom plate of the lower right angle plate 13. The sleeve 15 of the connecting component 14 is pre-buried in the floor 1 and welded to the steel bar in the floor 1 to ensure that the sleeve will not fall off. The upper and lower ends of the sleeve 15 are flush with the upper and lower surfaces of the floor 1. The bottom plate of the upper right angle plate 12 contacts the upper end of the sleeve 15, and the bottom plate of the lower right angle plate 13 contacts the lower end of the sleeve 15. The bolts 16 pass through the bottom plate of the upper right angle plate 12, the sleeve 15, and the bottom plate of the lower right angle plate 13 in sequence, and then the nuts 17 are screwed on the bolts 16 to press the bottom plate of the lower right angle plate 13, so that the bottom plates of the upper right angle plate 12 and the lower right angle plate 13 clamp the upper and lower surfaces of the floor 1. The connection assembly 14 is detachable, which facilitates the overall recovery of the cantilever frame assembly 2. The sleeve 15 causes little damage to the wall and is more firmly welded to the steel bars. In addition, after the cantilever frame assembly 2 is struck by lightning, the sleeve 15 can also conduct electricity into the steel bars and transmit it to the ground, thereby having an anti-lightning effect.

[0034] The sleeve 15 has a truncated cone 18 at both ends, and the large end of the truncated cone 18 is exposed. As can be seen from the above structure, the large end of the truncated cone 18 is flush with the wall surface, so that the sleeve 15 is more difficult to be pulled out of the wall and is completely integrated with the wall.

[0035] The bolt 16 of the connecting assembly 14 corresponding to the floor 1 has a hollow portion inside; the zinc strip 19 is screwed on the hollow portion through a thread. As can be seen from the above structure, by arranging the zinc strip 19 on the hollow portion, the entire cantilever frame assembly 2 will not rust, and when the zinc strip 19 is exhausted, it can be easily replaced indoors. Compared with the anti-rust method of spraying paint, it can be remedied on the spot, with good anti-rust effect and convenient replacement.

[0036] Two supporting steel pipes 20 are arranged between the I-beams 3 of the upper and lower adjacent cantilever frame assemblies 2; the upper end of the supporting steel pipe 20 is provided with an upper flange 21, and the lower end is provided with a lower flange 22; the lower flange 22 is detachably fixed on the top plate 23 of the I-beam 3 located below; there is a gap between the upper flange 21 and the bottom plate 24 of the I-beam 3 located above; an adjustment assembly 25 is arranged on the upper flange 21; the adjustment assembly 25 is used to fix the upper flange 21 and the bottom plate 24 of the I-beam 3 located above. It can be seen from the above structure that the two supporting steel pipes 20 are supported on the top plate 23 of the I-beam 3 below, one in front and one behind, and the downward pressure of the supporting steel pipes 20 passes through the vertical plate 11 of the I-beam 3; the two supporting steel pipes 20 serve as supports, and cooperate with the supporting steel pipes 20 of other cantilever frame systems, and then the scaffolding is built. The lower flange 22 at the lower end of the supporting steel pipe 20 is fixed to the top plate 23 of the I-beam 3 below; the upper flange 21 at the upper end of the supporting steel pipe 20 is fixed by the adjusting component 25 and the bottom plate 24 of the I-beam 3 located above, so that the upper and lower ends of the supporting steel pipe 20 and the upper and lower I-beams 3 are firmly fixed, so that the supporting steel pipe 20 will not shake; there is a gap between the upper flange 21 and the bottom plate 24 of the I-beam 3 located above, so as to facilitate the supporting steel pipe 20 to be placed between the upper and lower I-beams 3, and then the adjusting component 25 is adjusted and fixed.

[0037] The adjustment assembly 25 includes a plurality of bolt assemblies 26; the bolt assembly 26 includes an adjustment bolt 27, a first nut 28, a second nut 37 and a third nut 29; the adjustment bolt 27 penetrates the bottom plate 24 and the upper flange 21 of the upper I-beam 3 from top to bottom; the first nut 28 is screwed on the adjustment bolt 27 and pressed on the lower surface of the bottom plate 24 of the upper I-beam 3; the second nut 37 is screwed on the adjustment bolt 27 and pressed on the upper surface of the upper flange 21; the third nut 29 is screwed on the adjustment bolt 27 and pressed on the lower surface of the upper flange 21. As can be seen from the above structure, the adjusting bolt 27 penetrates the bottom plate 24 and the upper flange 21 of the upper I-beam 3 from top to bottom, and then the first nut 28 is rotated first to press the first nut 28 on the lower surface of the bottom plate 24 of the upper I-beam 3; then the second nut 37 is rotated to press the second nut 37 on the upper surface of the upper flange 21, at this time, the upper I-beam 3 can transmit force to the lower I-beam 3 through the supporting steel pipe 20; then the third nut 29 is rotated to press the third nut 29 on the lower surface of the upper flange 21. The I-beams 3 are also preventively supported by the supporting steel pipe 20, and can transmit force to the lower I-beam 3 after the I-beam 3 itself breaks, and multiple support protections ensure the reliability and safety of the cantilever frame assembly 2.

[0038] The upper pull rod 4 includes an upper rod 30, a lower rod 31 and a turnbuckle body 32; a lower threaded column 33 is provided at the lower end of the upper rod 30; an upper threaded hole is provided at the upper end of the turnbuckle body 32 to match the lower threaded column 33; an upper threaded column 34 is provided at the upper end of the lower rod 31; a lower threaded hole is provided at the lower end of the turnbuckle body 32 to match the upper threaded column 34; a left curved portion 35 protruding to the left is provided on the upper rod 30; and a right curved portion 36 protruding to the right is provided on the lower rod 31. As can be seen from the above structure, the turnbuckle body 32 can adjust the distance between the upper rod 30 and the lower rod 31, so that the upper pull rod 4 can fully pull the I-beam 3; the upper rod 30 is provided with a left curved portion 35 protruding to the left, and the lower rod 31 is provided with a right curved portion 36 protruding to the right. The left curved portion 35 and the right curved portion 36 can absorb vibration energy when vibration occurs, improve the anti-seismic ability, and improve the safety performance of the cantilever frame assembly 2.

[0039] The left curved portion 35 surrounds the rear support steel pipe 20; the right curved portion 36 surrounds the front support steel pipe 20. As can be seen from the above structure, the left curved portion 35 and the right curved portion 36 bypass the support steel pipe 20, so that the upper pull rod 4 can apply force to the middle of the I-beam 3 without biased torque.

[0040] The lower left support rod 5 and the lower right support rod 6 are both turnbuckle-type adjustable diagonal rods. As can be seen from the above structure, the turnbuckle-type adjustable diagonal rod can adjust the length to ensure that the lower left support rod 5 and the lower right support rod 6 fully support the I-beam 3.

[0041] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A cantilever frame system, characterized in that: The invention comprises a plurality of cantilever frame assemblies (2) corresponding one to each of the floor slabs (1); the cantilever frame assembly (2) comprises an I-beam (3), an upper pull rod (4), a left lower support rod (5), a right lower support rod (6), an upper seat (7) and a lower seat (8); an upper seat (7) is provided at the rear end of the I-beam (3); the upper seat (7) is fixed to the outer side of an upper side wall (9) adjacent to the floor slab (1); the lower seat (8) is fixed to the lower side wall (9) adjacent to the floor slab (1); The upper pull rod (4) is connected to the outer side of the wall (10); the two ends of the upper pull rod (4) are respectively connected to the I-beam (3) and the lower seat (8) of the cantilever frame assembly (2) located above the cantilever frame assembly (2) corresponding to the I-beam (3), so as to provide the I-beam (3) with a rear upper pulling force; the two ends of the lower left support rod (5) and the lower right support rod (6) are respectively connected to the I-beam (3) and the lower seat (8); the lower left support rod (5) and the lower right support rod (6) are respectively connected to the I-beam (3) and the lower seat (8); 3) is symmetrically arranged, and the intersection of the extended lines of the left lower support rod (5) and the right lower support rod (6) is located on the upward extended surface of the vertical plate (11) of the I-beam (3); the lower seat (8) is connected to one end of the upper pull rod (4) of the cantilever frame component (2) located below the cantilever frame component (2) corresponding to the lower seat (8); the cantilever frame component (2) also includes an upper right-angle plate (12), a lower right-angle plate (13) and a plurality of connecting components (14); the side plates and the upper seat (7) of the upper right-angle plate (12) are clamped to the inner and outer sides of the upper side wall (9) through a plurality of connection components (14); the side plates and the lower seat (8) of the lower right-angle plate (13) are clamped to the inner and outer sides of the lower side wall (10) through a plurality of connection components (14); the bottom plate of the upper right-angle plate (12) and the bottom plate of the lower right-angle plate (13) are clamped to the upper and lower sides of the floor slab (1) through a plurality of connection components (14).

2. A cantilever frame system according to claim 1, characterized in that: The connection assembly (14) comprises a sleeve (15), a bolt (16) and a nut (17); the sleeve (15) penetrates and is embedded in the upper side wall (9) or the lower side wall (10) or the floor slab (1), and the sleeve (15) is welded to the steel bars in the upper side wall (9) or the lower side wall (10) or the floor slab (1); the bolt (16) is inserted into the sleeve (15), and a nut (17) for locking is screwed onto the bolt (16).

3. A cantilever frame system according to claim 2, characterized in that: Both ends of the sleeve (15) are provided with truncated cone portions (18); the larger ends of the truncated cone portions (18) are exposed.

4. A cantilever frame system according to claim 3, characterized in that: A hollow portion is provided inside the bolt (16) of the connection assembly (14) corresponding to the floor slab (1); a zinc strip (19) is screwed onto the hollow portion through a thread.

5. A cantilever frame system according to claim 4, characterized in that: Two supporting steel pipes (20) are arranged between the I-beams (3) of the upper and lower adjacent cantilever frame assemblies (2); an upper flange (21) is arranged at the upper end of the supporting steel pipe (20), and a lower flange (22) is arranged at the lower end; the lower flange (22) is detachably fixed to the top plate (23) of the I-beam (3) located below; a gap exists between the upper flange (21) and the bottom plate (24) of the I-beam (3) located above; an adjustment assembly (25) is arranged on the upper flange (21); the adjustment assembly (25) is used to fix the upper flange (21) and the bottom plate (24) of the I-beam (3) located above.

6. A cantilever frame system according to claim 5, characterized in that: The adjustment assembly (25) comprises a plurality of bolt assemblies (26); the bolt assembly (26) comprises an adjustment bolt (27), a first nut (28), a second nut (37) and a third nut (29); the adjustment bolt (27) penetrates the bottom plate (24) and the upper flange (21) of the upper I-beam (3) from top to bottom; the first nut (28) is screwed on the adjustment bolt (27) and pressed on the lower surface of the bottom plate (24) of the upper I-beam (3); the second nut (37) is screwed on the adjustment bolt (27) and pressed on the upper surface of the upper flange (21); the third nut (29) is screwed on the adjustment bolt (27) and pressed on the lower surface of the upper flange (21).

7. A cantilever frame system according to claim 6, characterized in that: The upper pull rod (4) comprises an upper rod (30), a lower rod (31) and a turnbuckle body (32); a lower threaded column (33) is provided at the lower end of the upper rod (30); an upper threaded hole matching the lower threaded column (33) is provided at the upper end of the turnbuckle body (32); an upper threaded column (34) is provided at the upper end of the lower rod (31); a lower threaded hole matching the upper threaded column (34) is provided at the lower end of the turnbuckle body (32); a left curved portion (35) protruding to the left side is provided on the upper rod (30); and a right curved portion (36) protruding to the right side is provided on the lower rod (31).

8. A cantilever frame system according to claim 7, characterized in that: The left curved portion (35) surrounds the rear support steel pipe (20); and the right curved portion (36) surrounds the front support steel pipe (20).

9. A cantilever frame system according to claim 8, characterized in that: The lower left support rod (5) and the lower right support rod (6) are both turnbuckle-type adjustable diagonal rods.

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