Cantilever platform for erecting open caisson inner mold

Abstract

The utility model discloses an overhanging platform for erecting an inner mold of an open caisson, and relates to the technical field of buildings, the overhanging platform for erecting the inner mold of the open caisson comprises a well wall, I-shaped steel, wooden wedges, an anti-falling net, scaffold boards and a protection assembly; the I-shaped steel penetrates around the well wall, and the end, located on the outer side of the well wall, of the I-shaped steel is fixed to the ground. The wooden wedge is clamped in a gap between the I-shaped steel and the well wall; the anti-falling net is fixedly mounted in the middle of the open caisson; the scaffold board is laid on the top of the section, located on the inner side of the well wall, of the I-shaped steel. The protection assembly is arranged in the middle of the open caisson and fixedly connected with the end, located on the inner side of the well wall, of the I-shaped steel. The utility model has the beneficial effects that not only can the construction procedures be reduced and the construction period be shortened, but also the safety risk can be reduced and the safety accidents can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of building technology, and more specifically, to a cantilever platform for erecting the inner formwork of a caisson. Background Technology

[0002] During the construction of the first section of the caisson and subsequent extensions and heightening processes, the internal scaffolding is often dismantled before excavation and sinking to the designated position. Then, the scaffolding is reinstalled for the next section, and this process is repeated until the final section is completed and sunk to its designated position. This cyclical construction of the caisson not only extends the construction period but also increases the safety risks due to the progressively longer and higher scaffolding erected as the caisson grows.

[0003] Therefore, this utility model provides a cantilever platform for the erection of the inner formwork of a caisson, which can not only reduce construction procedures and construction period, but also reduce safety risks and the occurrence of safety accidents. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a cantilever platform for the erection of the inner formwork of a caisson, which can not only reduce construction procedures and construction period, but also reduce safety risks and the occurrence of safety accidents.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a cantilever platform for erecting the inner formwork of a caisson, wherein the improvement is that the cantilever platform for erecting the inner formwork of the caisson includes a caisson wall, H-beams, wooden wedges, a fall arrest net, scaffold boards, and protective components; the H-beams are inserted around the caisson wall, and one end of the H-beam located on the outside of the caisson wall is fixed to the ground; the wooden wedges are inserted into the gap between the H-beams and the caisson wall; the fall arrest net is fixedly installed in the middle of the caisson; the scaffold boards are laid on the top of the section of the H-beam located on the inside of the caisson wall; the protective components are set in the middle of the caisson and fixedly connected to the end of the H-beam located on the inside of the caisson wall.

[0006] In the above structure, the protective component includes a first annular reinforcing bar, which is welded to the top of the I-beam and located between the scaffold board and the I-beam.

[0007] In the above structure, the protective component also includes edge guardrail posts, dense mesh netting, and toe boards. The top and middle positions of the edge guardrail posts are welded with second ring steel bars; the toe boards are set at the bottom of the edge guardrail posts; and the dense mesh netting is laid between adjacent edge guardrail posts.

[0008] In the above structure, the edge guardrail uprights are inverted L-shaped steel bars with a height between 1m and 1.5m.

[0009] In the above structure, the cantilever platform for erecting the inner formwork of the caisson also includes ground anchors, steel wire ropes, and turnbuckles; the turnbuckles are connected between the ground anchors and the steel wire ropes; the end of the steel wire rope away from the turnbuckles is fixedly connected to the end of the I-beam located on the outer side of the caisson wall.

[0010] In the above structure, the wire rope includes a wire rope body, a rope clamp, and a retainer. The wire rope body is folded in half. The rope clamp is clamped onto the wire rope body, and the bottom of the rope clamp is engaged with the retainer.

[0011] In the above structure, one end of the wire rope body is provided with a rigging collar, and the other end is provided with a wire rope bearing end, a safety ring, and a wire rope adjusting end; the rigging collar is fixedly connected to a turnbuckle; the wire rope bearing end is fixedly connected to an I-beam; the size of the safety ring varies with the tightness of the wire rope adjusting end.

[0012] In the above structure, the turnbuckle includes a turnbuckle, a pull rod, and a pull ring. The two ends of the turnbuckle are threaded to the pull rod, and the pull ring is fixedly installed at the end of the pull ring and connected to the rigging collar / ground anchor.

[0013] The beneficial effects of this utility model are as follows: This solution forms a cantilevered construction platform on the inner side of the well wall using I-beams, scaffold boards, and protective components. The cantilevered construction platform reduces the number of lifting and hoisting operations, scaffolding erection, and personnel going up and down the pit, thus ensuring effective control of the safety of the construction of critical and dangerous projects. Therefore, this solution not only reduces construction procedures and construction period but also reduces safety risks and the occurrence of safety accidents. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a cantilever platform for erecting the inner formwork of a caisson, according to the present invention.

[0015] Figure 2 This is a top view of a cantilever platform for erecting the inner formwork of a caisson according to the present invention;

[0016] Figure 3 This is a cross-sectional view of a protective component for a cantilever platform used in the construction of an inner formwork for a caisson, according to the present invention.

[0017] Figure 4 This is a structural diagram of a steel wire rope for a cantilever platform used in the construction of an inner formwork for a caisson, according to the present invention.

[0018] Figure 5 This is a schematic diagram of the structure of a turnbuckle for a cantilever platform used in the erection of the inner formwork of a caisson, according to the present invention. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0021] This utility model discloses a cantilever platform for erecting the inner formwork of a caisson. The cantilever platform includes a caisson wall 2, an I-beam 3, wooden wedges, a fall arrest net 1, scaffold boards 5, and protective components. The I-beam 3 is inserted around the caisson wall 2, and one end of the I-beam 3 located on the outer side of the caisson wall 2 is fixed to the ground. The wooden wedges are inserted into the gap between the I-beam 3 and the caisson wall 2. The fall arrest net 1 is fixedly installed in the middle of the caisson. The scaffold boards 5 are laid on the top of the section of the I-beam 3 located on the inner side of the caisson wall 2. The protective components are located in the middle of the caisson and are fixedly connected to the end of the I-beam 3 located on the inner side of the caisson wall 2.

[0022] It should be noted that in this embodiment, the well wall 2 is the foundation of the entire construction structure, providing stable support and positioning. Other structures of the cantilever platform are designed around the well wall 2. The I-beams 3 serve as the main beams of the cantilever platform, with a spacing of 1.5m between them. The cantilever length inside the well wall 2 is 80cm, and the anchorage length is 1m. Due to the high strength and rigidity of the I-beams 3, they can effectively distribute the load when bearing heavy objects, preventing local instability or bending. By setting the I-beams 3 around the well wall 2, the platform can be kept level. The relative position of the platform and the well wall 2 remains stable; the wooden wedges are used to fill the gap between the I-beam 3 and the well wall 2, ensuring a tighter connection between the I-beam 3 and the well wall 2, preventing loosening or displacement; the fall protection net 1 is used to prevent objects or construction personnel from falling during work; the scaffold boards 5 are laid on the top of the inner side of the I-beam 3, providing a stable working platform for construction personnel; the protective components are installed in the middle of the caisson and fixedly connected to the inner end of the I-beam 3, further enhancing safety protection. In the specific implementation of this utility model, a cantilevered construction platform is formed inside the well wall 2 by the I-beam 3, scaffold boards 5, and protective components. The cantilevered construction platform can reduce the number of lifting and hoisting operations, scaffolding erection, and personnel going up and down the pit, ensuring that the safety of the construction of dangerous projects is effectively controlled; therefore, this solution can not only reduce construction procedures and construction period, but also reduce safety risks and the occurrence of safety accidents.

[0023] The protective assembly includes a first annular reinforcing bar 4, which is welded to the top of the I-beam 3 and located between the scaffold board 5 and the I-beam 3.

[0024] It should be noted that in this embodiment, the first annular steel bar 4 is designed to reinforce the stability between the I-beams 3 located on the inner side of the well wall 2; and the first annular steel bar 4 is made of two HRB diameter 22mm annular steel bars connected together, with the first bar 215cm away from the well wall and the second bar arranged at 50cm intervals.

[0025] The protective assembly also includes edge guardrail posts 6, dense mesh netting 7, and toe boards 10. The top and middle positions of the edge guardrail posts 6 are each welded with a second ring-shaped steel bar 19. The toe board 10 is located at the bottom of the edge guardrail posts 6. The dense mesh netting 7 is laid between adjacent edge guardrail posts 6. The edge guardrail posts 6 are inverted L-shaped steel bars with a height between 1m and 1.5m.

[0026] It should be noted that in this embodiment, the edge guardrail posts 6 are the main supporting components of the protection system. They are set along the edge or perimeter of the construction site to provide effective edge protection for construction workers, preventing falls caused by slips or improper operation. The edge guardrail posts 6 are made of inverted L-shaped HRB diameter 22mm steel bars welded to I-beams 3, and the height of the edge guardrail posts 6 is 1.2m, with a welding length ≥10d or a binding length ≥40d and not less than 300mm. The dense mesh netting 7 is usually laid between adjacent edge guardrail posts 6, mainly to prevent construction tools, materials or other items from falling below, ensuring the safety of the construction site. The toe board 10 is used to prevent construction workers from accidentally slipping or stepping into empty spaces, thereby improving the overall effect of edge protection. The design of the second ring steel bar 19 is to strengthen the stability between the edge guardrail posts 6. The second ring steel bar 19 also uses two HRB diameter 22mm ring steel bars.

[0027] The cantilever platform used for erecting the inner formwork of the caisson also includes ground anchors, steel wire ropes 8, and turnbuckles 9; the turnbuckles are connected between the ground anchors and the steel wire ropes 8; the end of the steel wire rope 8 away from the turnbuckles 9, the end of the I-beam 3 located on the outside of the well wall 2, is fixedly connected; the steel wire rope 8 includes a steel wire rope body, a rope clamp 12, and a retainer 16, the steel wire rope body is folded in half; the rope clamp 12 is clamped onto the steel wire rope body, and the bottom of the rope clamp 12 is engaged with the retainer 16; a rigging collar 1 is provided at one end of the steel wire rope body. 1. The other end is provided with a wire rope bearing end 15, a safety ring 13, and a wire rope adjusting end 14; the rigging sling 11 is fixedly connected to the turnbuckle 9; the wire rope bearing end 15 is fixedly connected to the I-beam 3; the size of the safety ring 13 varies with the tightness of the wire rope adjusting end 14; the turnbuckle 9 includes a turnbuckle 18, a pull rod 17, and a pull ring, the two ends of the turnbuckle 18 are respectively threaded to the pull rod 17, the pull ring is fixedly installed at the end of the pull ring, and the pull ring is connected to the rigging sling 11 / ground anchor.

[0028] It should be noted that in this embodiment, the ground anchor is used to fix the steel wire rope 8 to the ground, thereby providing a solid foundation support. The ground anchor is buried in a solid foundation to ensure that the platform will not tilt or slide in the cantilevered state. Specifically, the ground anchor, through its connection with the steel wire rope 8, transmits the cantilever force of the platform to the ground, ensuring that the platform is not affected by external loads and becomes unstable. The steel wire rope 8 is used to support and fix the cantilevered platform. Through its connection with the turnbuckle 9, the H-beam 3, and the ground anchor, it maintains the stability of the platform in the suspended state. Furthermore, the steel wire rope 8 has high tensile strength and tensile capacity, which can... The steel wire rope 8 bears the weight of the platform and the dynamic loads that may be generated during construction. The folded design of the steel wire rope 8 makes its load-bearing capacity stronger, and the double-strand steel wire rope 8 can distribute more weight, improving the safety of the platform. The turnbuckle 9 is used to connect the steel wire rope 8 and the ground anchor, and the tension of the steel wire rope 8 can be adjusted by adjusting its tightness. Specifically, the design of the turnbuckle 9 includes a turnbuckle 18, a tie rod 17 and a pull ring, which can realize the fixed connection between the steel wire rope 8 and the ground anchor. The connection force can be adjusted by rotating the thread of the tie rod 17 to ensure that the steel wire rope 8 can be firmly fixed, thereby stabilizing the cantilever platform.

[0029] It should also be noted that the wire rope body is fixed by the rope clamp 12 and the card seat 16 to ensure that the wire rope 8 will not loosen or slip during use; the design of the rigging collar 11 is to ensure the stability of the connection between the wire rope 8 and the turnbuckle 9, to ensure that the wire rope 8 will not loosen during the platform erection process, and to ensure the stability of the platform in the cantilever state; the safety ring 13 is mainly used to ensure the tightness of the wire rope adjustment end 14, and to ensure that the adjustment of the wire rope 8 will not cause instability of the platform.

[0030] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A cantilever platform for erecting the inner formwork of a caisson, characterized in that, The cantilever platform for erecting the inner formwork of the caisson includes a caisson wall, H-beams, wooden wedges, a fall arrest net, scaffold boards, and protective components. The H-beams are installed around the caisson wall, with one end of the H-beam located on the outer side of the caisson wall fixed to the ground. The wooden wedges are inserted into the gap between the H-beams and the caisson wall. The fall arrest net is fixedly installed in the middle of the caisson. The scaffold boards are laid on top of the section of the H-beam located on the inner side of the caisson wall. The protective components are located in the middle of the caisson and are fixedly connected to the end of the H-beam located on the inner side of the caisson wall.

2. The cantilever platform for erecting the inner formwork of a caisson according to claim 1, characterized in that, The protective assembly includes a first annular reinforcing bar, which is welded to the top of the I-beam and located between the scaffold board and the I-beam.

3. A cantilever platform for erecting the inner formwork of a caisson according to claim 1, characterized in that, The protective components also include edge guardrail posts, dense mesh netting, and toe boards. The top and middle positions of the edge guardrail posts are welded with second ring steel bars. The toe boards are set at the bottom of the edge guardrail posts. The dense mesh netting is laid between adjacent edge guardrail posts.

4. A cantilever platform for erecting the inner formwork of a caisson according to claim 1, characterized in that, The edge guardrail posts are made of inverted L-shaped steel bars, with a height between 1m and 1.5m.

5. A cantilever platform for erecting the inner formwork of a caisson according to claim 1, characterized in that, The cantilever platform used for erecting the inner formwork of the caisson also includes ground anchors, steel wire ropes, and turnbuckles; the turnbuckles are connected between the ground anchors and the steel wire ropes; the end of the steel wire rope away from the turnbuckles is fixedly connected to the end of the I-beam located on the outer side of the caisson wall.

6. A cantilever platform for erecting the inner formwork of a caisson according to claim 5, characterized in that, The wire rope includes a wire rope body, a rope clamp, and a retainer. The wire rope body is folded in half. The rope clamp is clamped onto the wire rope body, and the bottom of the rope clamp is engaged with the retainer.

7. A cantilever platform for erecting the inner formwork of a caisson according to claim 6, characterized in that, One end of the wire rope body is provided with a rigging collar, and the other end is provided with a wire rope bearing end, a safety ring, and a wire rope adjusting end; the rigging collar is fixedly connected to a turnbuckle; the wire rope bearing end is fixedly connected to an I-beam; the size of the safety ring varies with the tightness of the wire rope adjusting end.

8. A cantilever platform for erecting the inner formwork of a caisson according to claim 7, characterized in that, The turnbuckle includes a turnbuckle, a pull rod, and a pull ring. The two ends of the turnbuckle are threaded to the pull rod, and the pull ring is fixedly installed at the end of the pull ring and connected to the rigging sling / ground anchor.

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