A cantilever beam formwork support device

Abstract

The utility model relates to a kind of cantilever beam formwork supporting device, belong to cantilever supporting technical field, including cantilever I-beam, hoist and pull piece, support rod, hoist and pull piece includes hoist and pull rod, the outer end of hoist and pull rod is bent and forms hoist and pull ring, the hoist and pull rod on the outer end of hoist and pull ring is equipped with the welding section that is welded and fixed on hoist and pull rod upwards bending, the outer end bottom of cantilever I-beam is welded and fixed with bottom support steel column, the both ends of bottom support steel column are wound with hoist and pull steel wire rope, the front and back sides of steel wire rope are equipped with the limit reinforcing bar head fixed in the bottom of bottom support steel column, the upper end of steel wire rope is fixed on hoist and pull ring.The utility model is formed by "pre-embedded part fixed+ hoist and pull piece pull knot+ support rod support" triangle stable structure, improves overall bearing base;Limit reinforcing bar head can limit the left and right sliding of steel wire rope on bottom support steel column, ensure that hoist and pull force is stably applied to the outer end of cantilever I-beam, reduce displacement risk;And hoist and pull piece hoist and pull in the outer end bottom of cantilever I-beam, structure is more stable.

Description

Technical Field

[0001] This utility model relates to a cantilever beam formwork support device, belonging to the field of cantilever support technology. Background Technology

[0002] In building construction, the formwork support for cantilever beams is a crucial step in the construction of external cantilever structures. Traditional cantilever beam support devices mostly rely on a single sling or support structure, which has the following problems: First, the connection stability between the sling component and the building's exterior wall is insufficient, and displacement is easily caused by uneven stress; second, the sling component mostly suspends the top of the outer end of the cantilever beam, resulting in poor stability of the cantilever beam. Utility Model Content

[0003] This utility model provides a cantilever beam formwork support device to solve the problems existing in the background art.

[0004] This utility model relates to a cantilever beam formwork support device, including a cantilever I-beam connected to the exterior wall of a building. The inner end of the cantilever I-beam is connected to an embedded part set in the exterior wall of the building. The outer end of the cantilever I-beam is connected to a suspension member. A support rod is provided at the bottom of the cantilever I-beam. The lower end of the support rod is installed on the exterior wall of the building. The suspension member includes a suspension rod embedded in the exterior wall of the building. The outer end of the suspension rod is bent to form a suspension ring. The suspension rod at the outer end of the suspension ring is provided with a welded section that is bent upward and welded and fixed to the suspension rod. A bottom support steel column is welded and fixed at the bottom of the outer end of the cantilever I-beam. Both ends of the bottom support steel column are wrapped with steel wire ropes for suspension. Limiting steel bar heads are provided on both the front and rear sides of the steel wire ropes and fixed to the bottom of the bottom support steel column. The upper end of the steel wire rope is fixed to the suspension ring.

[0005] As a preferred embodiment, both ends of the wire rope are equipped with wire rope clamps, and the inner end of the suspension rod is equipped with a locking nut. A pad is placed between the locking nut and the inner side wall of the building's exterior wall. The wire rope clamps can firmly fix the ends of the wire rope, preventing it from loosening after long-term stress and ensuring the suspension effect; the pad can increase the contact area between the locking nut and the inner side wall of the wall, reducing local pressure and preventing damage to the wall due to concentrated stress.

[0006] As a preferred embodiment, the lower inner side of the suspension ring is provided with a top support block, and the outer wall of the top support block is provided with a top support groove that mates with the suspension ring. The lower part of the top support block is provided with a fixing flange, which is fixed to the exterior wall of the building by fixing bolts. The mating of the top support groove and the suspension ring allows the top support block to fit tightly against the suspension ring, providing bottom support for the suspension ring and preventing the suspension ring from deforming downwards under stress. The fixing flange, fixed to the exterior wall of the building by bolts, can firmly connect the top support block to the wall, further restricting the displacement of the suspension ring and improving the overall stability of the suspension structure.

[0007] As a preferred embodiment, the embedded component includes a fixing plate that is welded and fixed to the cantilevered I-beam, and the fixing plate is fixed by pre-embedded bolts embedded in the exterior wall of the building.

[0008] As a preferred embodiment, the upper end of the support rod is hinged to the bottom of the cantilevered I-beam, and the lower end of the support rod is hinged to a mounting plate. The mounting plate is fixed by a second pre-embedded bolt embedded in the exterior wall of the building. Both the first and second pre-embedded bolts also have washers at their inner ends. This results in a more stable structure.

[0009] As a preferred embodiment, a support plate is provided below the fixed plate. A limiting protrusion is located on the upper inner side of the support plate, and a limiting groove that mates with the limiting protrusion is provided on the exterior wall of the building. The support plate is fixed to the exterior wall of the building by fastening bolts. A tie rod is hinged to the outer side of the middle of the support plate, and the lower end of the tie rod is hinged to the middle of the support rod. The cooperation between the limiting protrusion and the limiting groove enables precise positioning of the support plate and provides limiting support by pressing against the bottom of the fixed plate.

[0010] As a preferred embodiment, the supporting steel column is equipped with welded fixing stiffeners on both the front and rear ends and on both sides. The inner side of the welded fixing stiffeners has a fixing arc surface that mates with the outer wall of the supporting steel column. The top of the welded fixing stiffeners is welded to the bottom of the cantilevered I-beam. The close fit between the fixing arc surface and the outer wall of the supporting steel column increases the contact area between the welded fixing stiffeners and the supporting steel column, ensuring a tighter and stronger weld. The welded fixing stiffeners also connect the supporting steel column and the cantilevered I-beam, enhancing the connection strength between the two and preventing the supporting steel column from detaching from or deforming from the cantilevered I-beam under stress, thus ensuring the stable operation of the suspended structure.

[0011] This utility model has the following beneficial effects: A triangular stable structure is formed by "fixing with embedded parts + tying with lifting parts + supporting with support rods", which improves the overall load-bearing foundation; the welded section can enhance the connection strength between the lifting ring and the lifting rod, and prevent the lifting ring from breaking under stress; the limiting steel bar head can restrict the left and right sliding of the wire rope on the bottom steel column, ensuring that the lifting force is stably applied to the outer end of the cantilever I-beam and reducing the risk of displacement; and the lifting parts are suspended at the bottom of the outer end of the cantilever I-beam, making the structure more stable. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 for Figure 1 Partial structural diagram; Figure 3 A schematic diagram of the side structure of the supporting steel column; In the diagram: 1. Support plate; 2. Building exterior wall; 3. Fixing plate; 4. Cantilevered I-beam; 5. Support rod; 6. Limiting rebar head; 7. Bottom support steel column; 8. Steel wire rope; 9. Steel wire rope clamp; 10. Lifting ring; 11. Welded section; 12. Lifting rod; 13. Top support block; 14. Fixing flange; 15. Pad plate; 16. Mounting base plate; 17. Welded fixing stiffener plate; 18. Limiting clip protrusion; 19. Tie rod. Detailed Implementation

[0013] The present invention will be further described below with reference to the embodiments.

[0014] Example 1, as Figures 1 to 3 As shown, this utility model is a cantilever beam formwork support device, including a cantilever I-beam 4 connected to the building exterior wall 2. The inner end of the cantilever I-beam 4 is connected to an embedded part set in the building exterior wall 2. The outer end of the cantilever I-beam 4 is connected to a suspension member. The bottom of the cantilever I-beam 4 is provided with a support rod 5. The lower end of the support rod 5 is installed on the building exterior wall 2. The suspension member includes a suspension rod 12 embedded in the building exterior wall 2. The outer end of the suspension rod 12 is bent to form a suspension ring 10. The suspension rod 12 at the outer end of the suspension ring 10 is provided with a welded section 11 that is bent upward and welded and fixed to the suspension rod 12. A bottom support steel column 7 is welded and fixed to the bottom of the outer end of the cantilever I-beam 4. Both ends of the bottom support steel column 7 are wrapped with steel wire ropes 8 for suspending it. The front and rear sides of the steel wire rope 8 are provided with limiting steel bar heads 6 fixed to the bottom of the bottom support steel column 7. The upper end of the steel wire rope 8 is fixed to the suspension ring 10.

[0015] Installation of embedded parts: When constructing the exterior wall 2 of the building, the embedded parts and the tie rods 12 are embedded in the preset positions respectively.

[0016] Fixing the cantilevered I-beam 4: After the wall is formed, connect the cantilevered I-beam 4 to the embedded parts; at the same time, weld the bottom support steel column 7 at the bottom of the outer end of the cantilevered I-beam 4, and weld the fixed limiting steel bar head 6 at the bottom of the front and rear ends of the bottom support steel column 7.

[0017] Installation of support rod 5: Connect the upper end of support rod 5 to the bottom of cantilever I-beam 4, and install the lower end on the building exterior wall 2.

[0018] Installation of wire rope 8: Wrap both ends of wire rope 8 around the two ends of the bottom support steel column 7 respectively, fix the head of wire rope 8, and fix the other end of wire rope 8 after passing it over the lifting ring 10.

[0019] When the cantilevered I-beam 4 is in use, the lifting components will lift the bottom of the outer end of the cantilevered I-beam 4, and with the support of the support rod 5, the structure is more stable.

[0020] In Example 2, based on Example 1, both ends of the wire rope 8 are equipped with wire rope clamps 9, and the inner end of the suspension rod 12 is equipped with a locking nut. A pad 15 is provided between the locking nut and the inner side wall of the building exterior wall 2. The two ends of the wire rope 8 are fixed by the wire rope clamps 9.

[0021] The lower inner side of the lifting ring 10 is provided with a top support block 13. The outer wall of the top support block 13 is provided with a top support groove that mates with the lifting ring 10. The lower part of the top support block 13 is provided with a fixing flange 14, which is fixed to the building exterior wall 2 by fixing bolts. The top support block 13 is inserted into the lower part of the lifting ring 10, and the top support groove of the top support block 13 supports the bottom inner side of the lifting ring 10.

[0022] The embedded parts include a fixing plate 3 that is welded and fixed to the cantilevered I-beam 4, and the fixing plate 3 is fixed by a pre-embedded bolt embedded in the building exterior wall 2.

[0023] The upper end of the support rod 5 is hinged to the bottom of the cantilevered I-beam 4, and the lower end of the support rod 5 is hinged to a mounting plate 16. The mounting plate 16 is fixed by a pre-embedded bolt 2 embedded in the building exterior wall 2. The inner ends of the pre-embedded bolts 1 and 2 are also provided with washers 15. The pre-embedded bolts 1 and 2 are pre-embedded in the preset positions during the construction of the building exterior wall 2.

[0024] A support plate 1 is provided below the fixed plate 3. A limiting protrusion 18 is provided on the upper inner side of the support plate 1. A limiting groove that mates with the limiting protrusion 18 is provided on the exterior wall 2. The support plate 1 is fixed to the exterior wall 2 by fastening bolts. A tie rod 19 is hinged to the outer side of the middle part of the support plate 1. The lower end of the tie rod 19 is hinged to the middle part of the support rod 5. After the support rod 5 is installed, the support plate 1 is installed below the fixed plate 3. The limiting protrusion 18 is engaged in the limiting groove. Then, the support plate 1 is fixed to the exterior wall 2 by fastening bolts. The two ends of the tie rod 19 are connected to the ear plate on the support plate 1 and the ear plate in the middle part of the support rod 5 by pins or hinge bolts.

[0025] Welded fixing stiffeners 17 are provided on both the front and rear ends and the left and right sides of the bottom supporting steel column 7. The inner side of the welded fixing stiffeners 17 is provided with a fixing arc surface that matches the outer wall of the bottom supporting steel column 7. The top of the welded fixing stiffeners 17 is welded and fixed to the bottom of the cantilever I-beam 4.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0027] In the description of this utility model, the terms "inner", "outer", "longitudinal", "transverse", "upper", "lower", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not require that this utility model must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A cantilever beam formwork support device, comprising a cantilever I-beam (4) connected to a building exterior wall (2), the inner end of the cantilever I-beam (4) being connected to an embedded part set in the building exterior wall (2), the outer end of the cantilever I-beam (4) being connected to a suspension member, and a support rod (5) being provided at the bottom of the cantilever I-beam (4), the lower end of the support rod (5) being installed on the building exterior wall (2), characterized in that: The lifting components include a lifting rod (12) embedded in the building exterior wall (2). The outer end of the lifting rod (12) is bent to form a lifting ring (10). The lifting rod (12) at the outer end of the lifting ring (10) is provided with a welded section (11) that is bent upward and welded and fixed on the lifting rod (12). The bottom of the outer end of the cantilever I-beam (4) is welded and fixed with a bottom support steel column (7). Both ends of the bottom support steel column (7) are wrapped with steel wire ropes (8) for lifting it. The front and rear sides of the steel wire rope (8) are provided with limiting steel bar heads (6) fixed at the bottom of the bottom support steel column (7). The upper end of the steel wire rope (8) is fixed on the lifting ring (10).

2. The cantilever beam formwork support device according to claim 1, characterized in that: Both ends of the wire rope (8) are equipped with wire rope clamps (9), the inner end of the suspending rod (12) is equipped with a locking nut, and a pad (15) is provided between the locking nut and the inner side wall of the building exterior wall (2).

3. The cantilever beam formwork support device according to claim 1, characterized in that: The lower inner side of the lifting ring (10) is provided with a top support block (13), and the outer side wall of the top support block (13) is provided with a top support groove that cooperates with the lifting ring (10). The lower part of the top support block (13) is provided with a fixed flange (14), and the fixed flange (14) is fixed to the building exterior wall (2) by fixing bolts.

4. The cantilever beam formwork support device according to claim 2, characterized in that: The embedded parts include a fixing plate (3) that is welded and fixed to the cantilevered I-beam (4), and the fixing plate (3) is fixed by a pre-embedded bolt embedded in the building exterior wall (2).

5. A cantilever beam formwork support device according to claim 4, characterized in that: The upper end of the support rod (5) is hinged to the bottom of the cantilever I-beam (4), and the lower end of the support rod (5) is hinged to the mounting plate (16). The mounting plate (16) is fixed by the pre-embedded bolts 2 embedded in the building exterior wall (2). The inner ends of the pre-embedded bolts 1 and 2 are also provided with pads (15).

6. The cantilever beam formwork support device according to claim 4, characterized in that: A support plate (1) is provided below the fixed plate (3). A limiting protrusion (18) is provided on the upper inner side of the support plate (1). A limiting groove that cooperates with the limiting protrusion (18) is provided on the building exterior wall (2). The support plate (1) is fixed to the building exterior wall (2) by fastening bolts. A tie rod (19) is hinged to the outer side of the middle part of the support plate (1). The lower end of the tie rod (19) is hinged to the middle part of the support rod (5).

7. The cantilever beam formwork support device according to claim 1, characterized in that: Welded fixing ribs (17) are provided on both the front and rear ends and the left and right sides of the bottom support steel column (7). The inner side of the welded fixing ribs (17) is provided with a fixed arc surface that matches the outer wall of the bottom support steel column (7). The top of the welded fixing ribs (17) is welded and fixed to the bottom of the cantilever I-beam (4).

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