Temporary fixing device for cantilever steel beam

Abstract

The invention relates to the technical field of building auxiliary equipment, in particular to a temporary fixing device for a cantilever steel beam. According to the technical scheme, the supporting mechanism comprises an inclined supporting rod, an auxiliary supporting rod is fixedly installed in the middle of the inclined supporting rod, a supporting plate for supporting a steel beam frame is fixedly installed at the top end of the inclined supporting rod, an abutting block abutting against the inclined face of a steel beam platform is fixedly installed at the end of the auxiliary supporting rod, and circular rings are rotationally connected to the two sides of the abutting block. The tip end, away from the building wall, of the steel beam platform serves as the fulcrum of the steel beam frame to enable the steel beam frame to form a lever-like structure, when the end, away from the building wall, of the steel beam frame droops, the steel beam frame exerts downward pressure on the inclined supporting rod, and the inclined supporting rod hooks a distribution block, a positioning arc plate and a cylinder through an auxiliary supporting rod positioning hook; therefore, the steel beam frame is used as a lever to prevent the steel beam frame from drooping and bending.

Description

Technical Field

[0001] The invention relates to the technical field of building auxiliary equipment, and in particular to a temporary fixing device for a cantilevered steel beam. Background Art

[0002] Cantilever steel beams are commonly used load-bearing components in construction, and their fixing method is directly related to construction safety and structural stability. Cantilever steel beams are usually used for temporary facilities such as external scaffolding and unloading platforms. Temporary fixing of cantilever steel beams refers to transitional fixing measures taken before formal fixing (such as bolt anchoring and welding) is completed to ensure that the steel beam is stable and reliable during installation. Temporary fixing must take into account safety, convenience and removability to avoid affecting subsequent formal fixing construction.

[0003] In the patent document with announcement number CN222501015U, a temporary fixing device for cantilever steel beams is proposed, including an outer wall, a side panel is attached to the outer side of the outer wall, the outer wall and the side panel are fixedly connected by a fixing mechanism, the supporting mechanism includes a first slot, and the bottom of the cantilever steel beam is provided with a first slot. The temporary fixing device for cantilever steel beams is provided with a U-shaped rod and a first nut, and the end of the U-shaped rod passes through the side panel and the inside of the outer wall, and the first nut is on the inner side of the outer wall. Under the action of the U-shaped rod and the first nut, the side panel and the cantilever steel beam can be stably fixed, and the U-shaped rod will not be separated from the outer wall. Two supporting mechanisms are provided, and the space enclosed by the supporting mechanism, the side panel and the cantilever steel beam is designed as a triangular structure. Due to the stability of the triangular structure, the cantilever steel beam can stably support the scaffolding under the action of the two supporting mechanisms, while improving the safety of the cantilever steel beam supporting the scaffolding.

[0004] However, the side panels of the temporary fixing device for the cantilevered steel beam are provided with recesses for fixing the supporting structure. The recesses will weaken the cross-sectional area of ​​the side panels, change the stress distribution, cause local stress concentration, and induce structural cracking or instability. Summary of the invention

[0005] The purpose of the present invention is to propose a temporary fixing device for cantilever steel beams to solve the problem in the background technology that the notches of the fixed supporting structure weaken the cross-sectional area of ​​the side plates and cause structural cracking or instability.

[0006] The technical solution of the present invention is: a temporary fixing device for cantilevered steel beams, applied to building walls and steel beam frames, comprising a side plate, a steel beam platform for erecting the steel beam frame is fixedly installed on the side of the side plate, and the side of the side plate is fixedly installed on the side of the building wall by bolts; and further comprising: Support mechanism, including inclined support rods. A secondary support rod is fixedly installed in the middle of the inclined support rod. A support plate for supporting the steel beam frame is fixedly installed at the top end of the inclined support rod. An abutting block that abuts against the inclined surface of the steel beam platform is fixedly installed at the end of the secondary support rod. Rings are rotatably connected to both sides of the abutting block. Positioning hooks are fixedly installed on the outer arc surface of the rings. Cylinders are fixedly installed on both sides of the steel beam platform. A positioning fastener for fixing the cylinder is provided at the top of the steel beam frame. The inner arc surface of the positioning hook contacts the positioning fastener.

[0007] The end of the bolt on the side of the side plate is threadedly connected with an extension block. A lower positioning block is fixedly installed at the bottom end of the inclined support rod. The lower positioning block is clamped with the extension block. A wind force offset mechanism is arranged inside the support plate.

[0008] Optionally, the secondary support rod is perpendicular to the inclined support rod. The inclined support rod is inclined at 45 degrees. A groove is formed at the top of the extension block. A convex block inserted into the groove is fixedly installed at the bottom of the lower positioning block. The steel beam platform adopts an isosceles right triangle structure. The secondary support rod is perpendicular to the inclined surface of the steel beam platform.

[0009] Optionally, the positioning fastener includes a pressing plate. A distribution block is slidably connected inside the pressing plate. A bayonet for buckling the cylinder is formed at the bottom of the distribution block. A positioning arc plate is fixedly installed on the side of the distribution block. The positioning arc plate adopts a semi-circular ring structure. The inner arc surface of the positioning arc plate contacts the cylinder. The inner surface of the positioning hook contacts the outer arc surface of the positioning arc plate.

[0010] Optionally, a lateral block is fixedly installed at the top of the support plate. The steel beam frame adopts an I-shaped steel beam. Two lateral blocks are provided and symmetrically distributed at the top of the support plate. The two lateral blocks and the support plate form a U-shaped structure. An L-shaped embedding groove is formed at the top of the support plate. The lateral block slides along the embedding groove.

[0011] Optionally, the bottom of the pressing plate is clamped with the extension block. A plurality of steel beam frames are arranged at equal intervals in a straight line on the side of the building wall. The bottom of the pressing plate contacts a plurality of steel beam frames. The pressing plate and the steel beam platform clamp the steel beam frame.

[0012] Optionally, the wind force offset mechanism includes a lateral support rod. The lateral support rod adopts a V-shaped structure. The tip of the lateral support rod is fixedly connected to the pressing plate through a plurality of bolts. The other end of the lateral support rod is fixedly connected with a plug rod. The end of the plug rod is inserted into the inside of the support plate. A hydraulic mechanism is arranged inside the support plate. The other end of the hydraulic mechanism is provided with a push plate. The push plate slides inside the lateral block.

[0013] Optionally, the hydraulic mechanism includes a first hydraulic oil chamber opened inside the support plate. A first piston is slidably connected inside the first hydraulic oil chamber. The end of the insertion rod contacts the first piston. A second hydraulic oil chamber is opened inside the lateral block. A second piston is slidably connected inside the second hydraulic oil chamber. An intermediate rod is fixedly installed between the second piston and the push plate. The first hydraulic oil chamber is communicated with the second hydraulic oil chamber through a hydraulic pipe.

[0014] Optionally, the push plate adopts an I-shaped structure, and the push plates slid inside the two lateral blocks clamp the steel beam frame.

[0015] Optionally, an equidistant distribution mechanism is arranged inside the pressing plate. The equidistant distribution mechanism includes a folding frame. A plurality of distribution blocks are provided, and two adjacent distribution blocks are connected to each other through the folding frame.

[0016] Optionally, a screw rod perpendicular to the ground is threadedly connected inside the distribution block. The top end of the screw rod is rotatably connected with a toothed plate slidably connected to the distribution block. A plurality of positioning tooth teeth distributed in a straight line are fixedly installed on the inner wall of the pressing plate and directly above the distribution block. The positioning tooth teeth are clamped with the toothed plate.

[0017] Compared with the prior art, the present invention has the following beneficial technical effects: In the present invention, the tip of the steel beam platform away from the building wall is used as the fulcrum of the steel beam frame to form a structure similar to a lever. When one end of the steel beam frame away from the building wall droops, the steel beam frame exerts a downward pressure on the inclined support rod. The inclined support rod uses the secondary support rod positioning hook to hook the distribution block, the positioning arc plate and the cylinder, so that the pressing plate presses down one end of the steel beam frame close to the building wall, thereby using the steel beam frame itself as a lever to prevent the steel beam frame from drooping and bending, and avoiding weakening the cross-sectional area of the extension block and changing the stress distribution when supporting the steel beam frame, resulting in local stress concentration and causing structural cracking or instability.

[0018] Furthermore, the lateral support rod and the insertion rod are used to apply a lateral support force to the steel beam frame to avoid deflection of the steel beam frame when it is affected by lateral wind. At the same time, when the steel beam frame exerts a pressure on the support plate under the action of wind force, a relative displacement is generated between the support plate and the insertion rod. The insertion rod pushes the first piston to make the push plate extend, and applies a force in the opposite direction to the wind force to the steel beam frame to offset the lateral wind force.

[0019] Even further, the folding frame is used to control the equidistant distribution of a plurality of distribution blocks, so that the distribution of the steel beam frames is more uniform, so that the pressing plate applies the same downward pressure to each steel beam frame to ensure that the lateral support forces of the lateral support rod and the insertion rod on the support plates at different positions are the same. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The overall structural schematic diagram of the present invention is given;

[0021] Figure 2 Provide a schematic structural diagram of the inclined support rod of the present invention;

[0022] Figure 3 For Figure 2 An enlarged schematic diagram of the positioning hook structure of part A of

[0023] Figure 4 A right view schematic diagram of the auxiliary support rod structure of the present invention;

[0024] Figure 5 A front view sectional schematic diagram of the support plate structure of the present invention;

[0025] Figure 6 A schematic diagram of the push plate structure of the present invention;

[0026] Figure 7 A schematic diagram of the pressing plate structure of the present invention;

[0027] Figure 8 A bottom view schematic diagram of the pressing plate structure of the present invention;

[0028] Figure 9 A schematic diagram of the toothed plate structure of the present invention.

[0029] Reference numerals: 1, building wall; 2, side plate; 3, extension block; 4, steel beam platform; 5, steel beam frame; 6, support mechanism; 61, lower positioning block; 62, inclined support rod; 63, support plate; 64, lateral block; 65, auxiliary support rod; 66, abutting block; 67, circular ring; 68, positioning hook; 69, pressing plate; 610, distribution block; 611, positioning arc plate; 612, cylinder; 7, wind force cancellation mechanism; 71, lateral support rod; 72, insertion rod; 73, first piston; 74, first hydraulic oil tank; 75, hydraulic pipe; 76, second hydraulic oil tank; 77, second piston; 78, push plate; 8, equidistant distribution mechanism; 81, folding frame; 82, screw; 83, positioning tooth; 84, toothed plate. Detailed implementation manners

[0030] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments.

[0031] Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention.

[0032] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] Embodiment 1. In this embodiment, a temporary fixing device for a cantilever steel beam is proposed. As Figure 1 shown, it is applied to a building wall 1 and a steel beam frame 5, and includes a side plate 2. A steel beam platform 4 for installing the steel beam frame 5 is fixedly installed on the side of the side plate 2, and the side of the side plate 2 is fixedly installed on the side of the building wall 1 through bolts.

[0036] As Figure 2 and Figure 3 shown, a support mechanism 6 is arranged below the steel beam frame 5. The support mechanism 6 includes an inclined support rod 62. A secondary support rod 65 is fixedly installed in the middle of the inclined support rod 62. A support plate 63 for supporting the steel beam frame 5 is fixedly installed at the top of the inclined support rod 62. A lower positioning block 61 is fixedly installed at the bottom of the inclined support rod 62, and the lower positioning block 61 is clamped with an extension block 3. A groove is formed at the top of the extension block 3, and a convex block inserted into the groove is fixedly installed at the bottom of the lower positioning block 61.

[0037] A lateral block 64 is fixedly installed at the top of the support plate 63. The steel beam frame 5 adopts an I-shaped steel beam. Two lateral blocks 64 are provided and symmetrically distributed at the top of the support plate 63. The inclined support rod 62 is inclined at 45 degrees. The cooperation of the groove and the convex block is used to fix the bottom position of the inclined support rod 62 by the lower positioning block 61, and the inclined support rod 62 is used to support the steel beam frame 5.

[0038] A lateral block 64 is fixedly installed at the top of the support plate 63. The steel beam frame 5 uses an I-shaped steel beam. Two lateral blocks 64 are provided and symmetrically distributed at the top of the support plate 63. The two lateral blocks 64 and the support plate 63 form a U-shaped structure. An L-shaped embedding groove is opened at the top of the support plate 63, and the lateral block 64 slides along the embedding groove.

[0039] The positions of the steel beam frame 5 in the left and right directions are fixed by the two lateral blocks 64. Since an L-shaped embedding groove is opened at the top of the support plate 63, by sliding the lateral block 64 in the embedding groove and sliding away from the steel beam frame 5, the lateral block 64 can be separated from the steel beam frame 5, so that the lateral block 64 and the support plate 63 as a whole can be removed.

[0040] As Figure 3 and Figure 4 shown, a resisting block 66 that abuts against the inclined surface of the steel beam platform 4 is fixedly installed at the end of the secondary support rod 65. Rings 67 are rotatably connected to both sides of the resisting block 66. A positioning hook 68 is fixedly installed on the outer arc surface of the ring 67. Cylinders 612 are fixedly installed on both sides of the steel beam platform 4. A positioning fastener for fixing the cylinder 612 is provided at the top of the steel beam frame 5. The inner arc surface of the positioning hook 68 contacts the positioning fastener. The steel beam platform 4 adopts an isosceles right triangle structure, and the secondary support rod 65 is perpendicular to the inclined surface of the steel beam platform 4.

[0041] The positioning fastener includes a pressing plate 69. A distribution block 610 is slidably connected inside the pressing plate 69. A bayonet for buckling the cylinder 612 is opened at the bottom of the distribution block 610. A positioning arc plate 611 is fixedly installed on the side of the distribution block 610. The positioning arc plate 611 adopts a semi-circular ring structure. The inner arc surface of the positioning arc plate 611 contacts the cylinder 612. The inner surface of the positioning hook 68 contacts the outer arc surface of the positioning arc plate 611.

[0042] By pressing the pressing plate 69 on the top of the steel beam frame 5 and near the end, and using the opening at the bottom of the distribution block 610 to buckle on the cylinder 612, and then using the positioning hook 68 to buckle the positioning arc plate 611 and the cylinder 612, the positions of the inclined support rod 62 and the secondary support rod 65 can be fixed. The secondary support rod 65 and the inclined support rod 62 are perpendicular to each other. The steel beam platform 4 adopts an isosceles right triangle structure, and the secondary support rod 65 is perpendicular to the inclined surface of the steel beam platform 4.

[0043] When one end of the steel beam frame 5 away from the building wall 1 droops, since the secondary support rod 65 is stressed and exerts a force along the direction of the secondary support rod 65 on the pressure plate 69 and the positioning arc plate 611, the pressure plate 69 exerts a downward pressure on one end of the steel beam frame 5 close to the building wall 1. The tip position of the steel beam platform 4 away from the building wall 1 serves as the fulcrum of the steel beam frame 5, and the steel beam frame 5 forms a lever structure, thereby clamping the steel beam frame 5 between the pressure plate 69 and the steel beam platform 4 to fix the steel beam frame 5, and the pressure plate 69 presses on the tops of multiple steel beam frames 5, and the pressure plate 69 links multiple steel beam frames 5 together.

[0044] Since it is a temporary fixing device, the ring 67 and the positioning hook 68 are rotated to fix the distribution block 610 and the positioning arc plate 611 on the top of the cylinder 612, and it can be separated by rotating the ring 67, which is convenient for disassembly.

[0045] In this embodiment, the tip of the steel beam platform 4 away from the building wall 1 serves as the fulcrum of the steel beam frame 5, so that the steel beam frame 5 forms a structure similar to a lever. When one end of the steel beam frame 5 away from the building wall 1 droops, the steel beam frame 5 exerts a downward pressure on the inclined support rod 62. The inclined support rod 62 uses the positioning hook 68 of the secondary support rod 65 to hook the distribution block 610, the positioning arc plate 611 and the cylinder 612, so that the pressure plate 69 presses down one end of the steel beam frame 5 close to the building wall 1, thereby using the steel beam frame 5 itself as a lever to prevent the steel beam frame 5 from drooping and bending, and avoiding weakening the cross-sectional area of the extension block 3 and changing the stress distribution when supporting the steel beam frame 5, resulting in local stress concentration and causing structural cracking or instability.

[0046] Embodiment 2, based on Embodiment 1, this embodiment proposes a temporary fixing device for a cantilever steel beam, as Figure 1 and Figure 5 shown. A wind force cancellation mechanism 7 is arranged inside the support plate 63. The wind force cancellation mechanism 7 includes a lateral support rod 71. The lateral support rod 71 adopts a V-shaped structure. The tip of the lateral support rod 71 is fixedly connected to the pressure plate 69 through a plurality of bolts. The other end of the lateral support rod 71 is fixedly connected to an insertion rod 72. The end of the insertion rod 72 is inserted into the inside of the support plate 63. A hydraulic mechanism is arranged inside the support plate 63, and the other end of the hydraulic mechanism is provided with a push plate 78, and the push plate 78 slides inside the lateral block 64.

[0047] The steel beam frame 5 is laterally supported by the lateral support rod 71 and the insertion rod 72 to prevent the steel beam frame 5 from bending when subjected to lateral wind force. When the steel beam frame 5 is displaced by wind force and the steel beam frame 5 and the support plate 63 move to the right, the insertion rod 72 on the right side of the support plate 63 slides into the support plate 63, so that the hydraulic mechanism makes the push plate 78 extend to exert a force on the steel beam frame 5 in the direction opposite to the wind force to cancel the lateral wind force.

[0048] As Figure 6As shown in the figure, the hydraulic mechanism includes a first hydraulic oil chamber 74, which is opened inside the support plate 63. A first piston 73 is slidably connected inside the first hydraulic oil chamber 74. The end of the insertion rod 72 contacts the first piston 73. A second hydraulic oil chamber 76 is opened inside the lateral block 64. A second piston 77 is slidably connected inside the second hydraulic oil chamber 76. An intermediate rod is fixedly installed between the second piston 77 and the push plate 78. The first hydraulic oil chamber 74 is communicated with the second hydraulic oil chamber 76 through a hydraulic pipe 75. The push plate 78 adopts an I-shaped structure, and the push plates 78 sliding inside the two lateral blocks 64 clamp the steel beam frame 5.

[0049] When the steel beam frame 5 deflects under the action of wind force and a relative displacement occurs between the insertion rod 72 and the support plate 63, and the insertion rod 72 slides into the support plate 63 and pushes the first piston 73 to slide inside the first hydraulic oil chamber 74, the insertion rod 72 pushes the first piston 73 to slide and pushes the hydraulic oil inside the first hydraulic oil chamber 74 into the second hydraulic oil chamber 76, so that the second piston 77 pushes out the push plate 78, and the push plate 78 exerts a reaction force on the steel beam frame 5.

[0050] In this embodiment, the lateral support rods 71 and the insertion rods 72 are used to apply lateral support forces to the steel beam frame 5 to prevent the steel beam frame 5 from deflecting when subjected to lateral wind. At the same time, when the steel beam frame 5 exerts a pressure on the support plate 63 under the action of wind force, a relative displacement occurs between the support plate 63 and the insertion rod 72, and the insertion rod 72 pushes the first piston 73 to make the push plate 78 extend, applying a force in the opposite direction to the wind force to the steel beam frame 5 to offset the lateral wind force.

[0051] Embodiment 3, based on the above Embodiment 1 or Embodiment 2, this embodiment proposes a temporary fixing device for a cantilever steel beam, as Figure 7 and Figure 8 shown. An equidistant distribution mechanism 8 is arranged inside the pressing plate 69. The equidistant distribution mechanism 8 includes a folding frame 81. A plurality of distribution blocks 610 are provided, and two adjacent distribution blocks 610 are connected to each other through the folding frame 81. The folding frame 81 is used to control the equidistant distribution of the plurality of distribution blocks 610 to make the distribution of the steel beam frame 5 more uniform.

[0052] As Figure 9 shown, a screw rod 82 perpendicular to the ground is threadedly connected inside the distribution block 610. The top end of the screw rod 82 is rotatably connected to a toothed plate 84 slidably connected to the distribution block 610. A plurality of positioning teeth 83 distributed in a straight line are fixedly installed on the inner wall of the pressing plate 69 and directly above the distribution block 610. The positioning teeth 83 are engaged with the toothed plate 84. By rotating the screw rod 82, the toothed plate 84 is jacked up, and the toothed plate 84 is engaged with the positioning teeth 83 to fix the position of the distribution block 610.

[0053] In this embodiment, the folding frame 81 is used to control the equidistant distribution of multiple distribution blocks 610, so that the steel beam frames 5 are more evenly distributed, so that the pressing plate 69 applies the same downward pressure to each steel beam frame 5, so as to ensure that the lateral support rods 71 and the insertion rods 72 have the same lateral supporting force on the support plates 63 at different positions.

[0054] The above specific embodiments are only several alternative embodiments of the present invention. Based on the technical solution of the present invention and the relevant revelations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A temporary fixing device for a cantilever steel beam, which is applied to a building wall (1) and a steel beam frame (5), comprising side plates (2). A steel beam platform (4) for installing the steel beam frame (5) is fixedly installed on the side of the side plate (2). The side of the side plate (2) is fixedly installed on the side of the building wall (1) through bolts, and is characterized in that, It further includes: A support mechanism (6), including an inclined support rod (62). A secondary support rod (65) is fixedly installed in the middle of the inclined support rod (62). A support plate (63) of a support steel beam frame (5) is fixedly installed at the top end of the inclined support rod (62). An abutting block (66) that abuts against the inclined surface of a steel beam platform (4) is fixedly installed at the end of the secondary support rod (65). Rings (67) are rotatably connected to both sides of the abutting block (66). A positioning hook (68) is fixedly installed on the outer arc surface of the ring (67). Cylinders (612) are fixedly installed on both sides of the steel beam platform (4). A positioning fastener for fixing the cylinder (612) is provided at the top of the steel beam frame (5). The inner arc surface of the positioning hook (68) contacts the positioning fastener. An extension block (3) is threadedly connected to the end of a bolt on the side of the side plate (2). A lower positioning block (61) is fixedly installed at the bottom end of the inclined support rod (62). The lower positioning block (61) is clamped with the extension block (3). A wind force offset mechanism (7) is arranged inside the support plate (63).

2. The temporary fixing device for a cantilever steel beam according to claim 1, wherein: The secondary support rod (65) is perpendicular to the inclined support rod (62). The inclined support rod (62) is inclined at 45 degrees. A groove is formed at the top of the extension block (3). A convex block that is inserted into the groove is fixedly installed at the bottom of the lower positioning block (61). The steel beam platform (4) has an isosceles right triangle structure. The secondary support rod (65) is perpendicular to the inclined surface of the steel beam platform (4).

3. The temporary fixing device for a cantilever steel beam according to claim 2, wherein: The positioning fastener includes a pressing plate (69). A distribution block (610) is slidably connected inside the pressing plate (69). A bayonet for buckling the cylinder (612) is formed at the bottom of the distribution block (610). A positioning arc plate (611) is fixedly installed on the side of the distribution block (610). The positioning arc plate (611) has a semi-circular ring structure. The inner arc surface of the positioning arc plate (611) contacts the cylinder (612). The inner surface of the positioning hook (68) contacts the outer arc surface of the positioning arc plate (611).

4. The temporary fixing device for a cantilever steel beam according to claim 3, characterized in that: A lateral block (64) is fixedly installed at the top of the support plate (63). The steel beam frame (5) is an I-shaped steel beam. Two lateral blocks (64) are provided and symmetrically distributed at the top of the support plate (63). The two lateral blocks (64) and the support plate (63) form a U-shaped structure. An L-shaped embedding groove is formed at the top of the support plate (63). The lateral block (64) slides along the embedding groove.

5. The temporary fixing device for a cantilever steel beam according to claim 4, wherein: The bottom of the pressing plate (69) is clamped with the extension block (3). A plurality of steel beam frames (5) are arranged at equal intervals in a straight line on the side of the building wall (1). The bottom of the pressing plate (69) contacts a plurality of steel beam frames (5). The pressing plate (69) and the steel beam platform (4) clamp the steel beam frame (5).

6. The temporary fixing device for a cantilever steel beam according to claim 5, wherein: The wind force offset mechanism (7) includes a lateral support rod (71). The lateral support rod (71) adopts a V-shaped structure. The tip of the lateral support rod (71) is fixedly connected to the pressing plate (69) through a plurality of bolts. The other end of the lateral support rod (71) is fixedly connected to an insertion rod (72). The end of the insertion rod (72) is inserted into the inside of the support plate (63). A hydraulic mechanism is arranged inside the support plate (63). The other end of the hydraulic mechanism is provided with a push plate (78). The push plate (78) slides inside the lateral block (64).

7. The temporary fixing device for a cantilever steel beam according to claim 6, characterized in that: The hydraulic mechanism includes a first hydraulic oil tank (74). The first hydraulic oil tank (74) is opened inside the support plate (63). A first piston (73) is slidably connected inside the first hydraulic oil tank (74). The end of the insertion rod (72) contacts the first piston (73). A second hydraulic oil tank (76) is opened inside the lateral block (64). A second piston (77) is slidably connected inside the second hydraulic oil tank (76). An intermediate rod is fixedly installed between the second piston (77) and the push plate (78). The first hydraulic oil tank (74) is communicated with the second hydraulic oil tank (76) through a hydraulic pipe (75).

8. A temporary fixing device for a cantilever steel beam according to claim 7, characterized in that: The push plate (78) adopts an I-shaped structure. The push plates (78) sliding inside the two lateral blocks (64) clamp the steel beam frame (5).

9. The temporary fixing device for a cantilever steel beam according to claim 8, characterized in that: An equidistant distribution mechanism (8) is arranged inside the pressing plate (69). The equidistant distribution mechanism (8) includes a folding frame (81). A plurality of distribution blocks (610) are provided. Adjacent two of the distribution blocks (610) are connected to each other through the folding frame (81).

10. A temporary fixing device for a cantilever steel beam according to claim 9, characterized in that: A screw rod (82) perpendicular to the ground is threadedly connected inside the distribution block (610). The top end of the screw rod (82) is rotatably connected to a toothed plate (84) slidably connected to the distribution block (610). A plurality of positioning teeth (83) distributed in a straight line are fixedly installed on the inner wall of the pressing plate (69) and directly above the distribution block (610). The positioning teeth (83) are engaged with the toothed plate (84).

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