Large-diameter reinforcement cage lifting appliance for cast-in-situ bored pile

Abstract

The utility model relates to the technical field of cast-in-place pile construction, and discloses a large-diameter reinforcement cage lifting appliance for a cast-in-place bored pile, which comprises a framework, the rope system is mounted above the framework and used for hoisting the framework through the rope system; the cage diameter adjusting parts are evenly installed on the periphery of the lower portion of the framework, a plurality of adjusting holes are formed in each cage diameter adjusting part, and the positions of the adjusting holes in the cage diameter adjusting parts are in one-to-one correspondence; and each cage lifting rope is connected with the cage diameter adjusting part through the corresponding adjusting hole. According to the steel reinforcement cage lifting appliance, the framework, the rope system and the cage diameter adjusting part are arranged, so that the lifting appliance system can safely and effectively lift steel reinforcement cages with different diameters, the framework provides a stable structural foundation, the rope system is responsible for lifting, and the cage diameter adjusting part is rapidly matched with the steel reinforcement cages with different diameters through the adjusting holes of the cage diameter adjusting part; and the construction efficiency is integrally improved, and the operation safety is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of cast-in-place pile construction, in particular to a large-diameter steel cage sling for bored cast-in-place piles. Background Art

[0002] Cast-in-place pile construction refers to forming a pile hole in the foundation soil at the construction site by means of mechanical drilling, steel pipe soil extrusion or manual excavation, etc., and placing a steel cage and pouring concrete therein to form a pile. Commonly used types include bored cast-in-place piles and driven cast-in-place piles, etc. Cast-in-place pile construction is mainly divided into several steps: hole formation, hole cleaning, lowering the steel cage and pouring concrete. Hole formation is to form a pile hole in the foundation by machines such as auger drills or submersible drills. For bored cast-in-place piles, the slurry-supported full casing construction method is usually used to maintain the stability of the hole wall. After hole formation, the hole needs to be cleaned to ensure that there are no sundries or sediments affecting the pile quality. Then, the fabricated steel cage is vertically lifted into the hole and fixed to prevent displacement. Finally, underwater concrete is poured into the hole through a conduit, ensuring continuous pouring to avoid pile breakage. When vertically lifting the fabricated steel cage into the hole, a steel cage sling is required.

[0003] In the prior art, due to the large weight and long length of the steel cage of large-diameter bored cast-in-place piles, the steel cage processing yard generally needs to fabricate the steel cage in sections. After transporting it to the hole opening, it needs to be connected at the hole opening. Whether the steel cage connection at the hole opening adopts welding, mechanical connection or binding connection, it is necessary to ensure that the lifted steel cage is vertical. Otherwise, the end steel bars of the upper and lower sections of the steel cage cannot be closely spliced together, and the two connected sections of the steel cage cannot be ensured to be straight. Moreover, a construction project often includes steel cages of various diameters. Changing the sling is not only inconvenient but also affects the hoisting efficiency. Therefore, this application provides a large-diameter steel cage sling for bored cast-in-place piles to meet the requirements. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a large-diameter steel cage sling for bored cast-in-place piles to solve the problems of inconvenient connection and difficult hoisting caused by the large weight and long length of the existing steel cage.

[0005] To solve the above-mentioned problems, the utility model is realized through the following technical solutions:

[0006] A large-diameter steel cage lifting tool for bored cast-in-place piles, comprising a framework; a rope system installed above the framework for lifting the framework through the rope system; a plurality of cage diameter adjusting parts evenly installed around the lower part of the framework, each of the cage diameter adjusting parts being provided with a plurality of adjusting holes, and the positions of the adjusting holes on the plurality of cage diameter adjusting parts corresponding one by one; a plurality of cage lifting ropes, each of the cage lifting ropes being connected to the cage diameter adjusting part through the corresponding adjusting hole and being configured to install steel cages of different diameters according to different positions where the cage lifting ropes are connected to the adjusting holes.

[0007] The framework includes four bone beams, and the four bone beams are in a cross shape.

[0008] A plurality of first U-shaped shackles are respectively installed on the plurality of cage lifting ropes.

[0009] The rope system includes: a plurality of lifting lugs evenly installed around the upper part of the framework, and the lifting lugs are provided with shackle insertion holes; a plurality of suspension ropes, one end of each of which is connected to the lifting lug through the shackle insertion hole.

[0010] The rope system further includes: a second U-shaped shackle, and the other ends of the plurality of suspension ropes are connected to the second U-shaped shackle.

[0011] A groove is provided on the framework; two first reinforcing plates are respectively installed above and below the framework, and the first reinforcing plates are located at the center where the four bone beams are connected.

[0012] A second reinforcing plate is installed on the groove, and the second reinforcing plate is located at the center where the four bone beams are connected.

[0013] A plurality of vertical rib plates are evenly installed on the groove.

[0014] The present utility model provides a large-diameter steel cage lifting tool for bored cast-in-place piles. Compared with the prior art, the following beneficial effects are achieved:

[0015] In the above solution, by providing a framework, a rope system and a cage diameter adjusting part, the lifting tool system can safely and effectively lift steel cages of different diameters. Among them, the framework provides a stable structural foundation, the rope system is responsible for lifting, and the cage diameter adjusting part realizes rapid adaptation to steel cages of different diameters through its adjusting holes, overall improving the construction efficiency and ensuring the safety of operation. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the present utility model.

[0017] Figure 2 It is a schematic structural diagram of the cage diameter adjusting part of the present utility model.

[0018] The reference numerals in the figures are as follows:

[0019] 1. Lifting lug; 2. Shackle insertion hole; 3. Skeleton; 4. Cage diameter adjustment part; 5. Adjustment hole; 6. First reinforcing plate; 7. Second reinforcing plate; 8. Vertical rib plate; 9. Suspension rope; 10. Cage lifting rope; 11. First U-shaped shackle; 12. Groove; 13. Rope system; 14. Second U-shaped shackle. Detailed implementation manners

[0020] The present utility model will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the protection scope of the present utility model.

[0021] The following illustrates the implementation manners of the present utility model through specific examples. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model.

[0022] Referring to Figure 1 - Figure 2 , a large-diameter steel cage lifting tool for bored cast-in-place piles, comprising a skeleton 3; a rope system 13 installed above the skeleton 3 for lifting the skeleton 3 through the rope system 13; a plurality of cage diameter adjustment parts 4 evenly installed around the lower part of the skeleton 3, and a plurality of adjustment holes 5 are provided on each cage diameter adjustment part 4, and the positions of the adjustment holes 5 on the plurality of cage diameter adjustment parts 4 correspond to each other one by one; a plurality of cage lifting ropes 10, and each cage lifting rope 10 is respectively connected to the cage diameter adjustment part 4 through the corresponding adjustment hole 5, and is configured to install steel cages of different diameters according to different positions where the cage lifting rope 10 is connected to the adjustment hole 5.

[0023] As the core structure of the entire lifting tool system, the skeleton 3 provides a stable support foundation. It needs to bear the weight of the entire steel cage and various forces generated during the lifting process. Therefore, the skeleton 3 is strong and durable. The skeleton 3 also plays a role in connecting various components. It ensures that components such as the rope system 13 and the cage diameter adjustment part 4 can be reasonably arranged and work together to achieve the smooth progress of the lifting operation.

[0024] The rope system 13 is the execution component of the lifting operation. Through cooperation with the lifting equipment, it realizes the lifting and movement of the skeleton 3 and the steel cage. The rope system 13 evenly transmits the force of the lifting equipment to the skeleton 3, and then the skeleton 3 distributes the force to each part of the steel cage to ensure the smooth and balanced lifting process.

[0025] The cage diameter adjustment part 4 allows the operator to select the appropriate hole position to install the cage lifting rope 10 according to the specific diameter of the steel cage, so that the lifting device can adapt to steel cages of different sizes, thereby improving the versatility and operational flexibility of the lifting device, reducing the need to replace parts, and improving work efficiency.

[0026] The cage lifting rope 10 is responsible for directly connecting the cage diameter adjustment part 4 with the steel cage. Through the different positions of the adjustment hole 5, the specific adjustment of the steel cage lifting point can be achieved. The cage lifting rope 10 needs to have sufficient load-bearing capacity and wear resistance to ensure that it can withstand gravity during the lifting process and resist wear caused by improper operation or environmental factors, thereby ensuring the safety of the lifting operation.

[0027] The skeleton 3 includes four bone beams, and the four bone beams are in a cross shape.

[0028] The cross-shaped beams provide a balanced support structure for the sling, which is conducive to evenly dispersing the weight of the steel cage during the lifting process, reducing the instability and potential safety risks caused by uneven loads. The beams serve as the skeleton of the entire sling. The cross-shaped structure of the beams is mechanically conducive to providing a solid foundation, enhancing the rigidity and stability of the entire sling. Especially when bearing a large load, the balanced force distribution helps to avoid damage to the steel cage or sling due to excessive local force.

[0029] A plurality of first U-shaped shackles 11 are respectively installed on a plurality of cage hoisting ropes 10 .

[0030] The function of the first U-shaped shackle 11 is mainly to provide reliable connection, facilitate operation and adjustment, and enhance safety. Through its U-shaped structure, the rope and the steel cage are reliably connected, thereby ensuring that the steel cage can be stably suspended during the hoisting process. The first U-shaped shackle 11 has a safety locking mechanism, which can effectively prevent it from falling off due to vibration or load changes during the hoisting process, providing additional safety protection for the hoisting operation.

[0031] The rope system 13 comprises: a plurality of lifting ears 1 evenly installed around the frame 3, with shackle insertion holes 2 provided on the lifting ears 1; and a plurality of hanging ropes 9, one end of which is connected to the lifting ears 1 through the shackle insertion holes 2.

[0032] The lifting lug 1, as the connection point between the lifting tool and the suspension rope 9, is designed to ensure that the force can be stably transmitted from the lifting equipment through the suspension rope 9 to the entire lifting tool system and then evenly distributed on the steel reinforcement cage. Multiple lifting lugs 1 are evenly distributed around the upper part of the framework 3, enabling the force from the lifting equipment to be more evenly dispersed to the entire framework 3, avoiding local overload caused by concentrated force, helping to reduce stress concentration inside the lifting tool, and reducing the risk of damage to the lifting tool due to excessive stress. The shackle insertion hole 2 on the lifting lug 1 provides a reliable fixing point for the suspension rope 9, preventing the accidental unhooking of the suspension rope 9 during the lifting process and improving the safety of operation.

[0033] The rope system 13 further includes: a second U-shaped shackle 14, and the other ends of multiple suspension ropes 9 are connected to the second U-shaped shackle 14.

[0034] The use of the second U-shaped shackle 14 simplifies the connection and disconnection process between the suspension rope 9 and other components, making the assembly and disassembly work of the lifting tool faster and improving work efficiency. During the lifting process, if it is necessary to adjust the rope length or change the lifting angle, the second U-shaped shackle 14 can be operated conveniently and quickly, providing greater operation flexibility. The second U-shaped shackle 14 allows the suspension rope 9 to quickly adapt to different types and specifications of steel reinforcement cages, enhancing the adaptability of the lifting tool to different lifting tasks. Through the adjustment of the second U-shaped shackle 14, fine control of the tension of the suspension rope 9 can be achieved, optimizing the force distribution of the entire lifting tool system and reducing the wear or damage of the lifting tool caused by concentrated force.

[0035] Grooves 12 are provided on the framework 3; two first reinforcing plates 6 are respectively installed above and below the framework 3, and the first reinforcing plates 6 are located at the center where the four bone beams are connected.

[0036] The setting of the first reinforcing plates 6 on the upper and lower sides of the framework 3, especially at the center where the four bone beams are connected, provides additional support for the framework 3 and enhances its overall structural strength. During the lifting process, the weight of the steel reinforcement cage will generate a concentrated load on the framework 3. The first reinforcing plates 6 help to disperse these concentrated loads and reduce the pressure borne by a single bone beam, which helps to transmit the force from the steel reinforcement cage more evenly to the entire structure of the framework 3 and avoid local overload caused by uneven force.

[0037] A second reinforcing plate 7 is installed on the groove 12, and the second reinforcing plate 7 is located at the center where the four bone beams are connected.

[0038] The position and structural design of the second reinforcing plate 7 contribute to more evenly transferring the force from the steel reinforcement cage to the structure of the entire framework 3, avoiding local overload caused by uneven force. By optimizing the force distribution, the second reinforcing plate 7 can also reduce the stress concentration inside the framework 3, lower the risk of sling damage caused by excessive stress, and improve the mechanical efficiency of the entire system.

[0039] Multiple vertical rib plates 8 are evenly installed on the groove 12.

[0040] By increasing the rigidity of the framework 3, the vertical rib plates 8 effectively prevent the deformation that may occur to the framework 3 when hoisting a heavy steel reinforcement cage, ensuring the stability of the hoisting process. The vertical rib plates 8 also help to maintain the structural balance of the framework 3, reduce the swing of the steel reinforcement cage caused by imbalance, and guarantee the safety of the hoisting operation.

[0041] During use, first measure the diameter of the steel reinforcement cage. According to the diameter of the steel reinforcement cage, pass multiple cage hoisting ropes 10 through the adjustment holes 5 at the corresponding positions and connect them to the cage diameter adjustment part 4. Pass one end of the suspension rope 9 through the hole 2 with a shackle and connect it to the lifting lug 1, and connect the other end to the second U-shaped shackle 14. Hook the second U-shaped shackle 14 with a lifting device and slowly lift the entire framework 3. At this time, the steel reinforcement cage should be stably suspended in the air. Conduct a safety inspection before hoisting to ensure that all connections are firm and correct, and confirm that the rope system 13 has no wear or damage. After reaching the target position, slowly lower the steel reinforcement cage to the set position to ensure its accurate alignment.

[0042] Therefore, although the present utility model has been described herein with reference to its specific embodiments, modifications, various changes and substitutions are also within the above disclosure, and it should be understood that in some cases, some features of the present utility model will be adopted without corresponding use of other features without departing from the scope and spirit of the proposed utility model. Therefore, many modifications can be made to adapt a particular environment or material to the substantial scope and spirit of the present utility model. The present utility model is not intended to be limited to the specific terms used in the following claims and / or the specific embodiments disclosed as the best mode contemplated for carrying out the present utility model, but the present utility model will include any and all embodiments and equivalents falling within the scope of the appended claims. Thus, the scope of the present utility model will be determined only by the appended claims.

Claims

1. A large-diameter steel cage lifting tool for bored cast-in-place piles, characterized in that Comprising: A framework (3); A rope system (13), installed above the framework (3) for lifting the framework (3) through the rope system (13); A plurality of cage diameter adjusting parts (4), evenly installed around the lower part of the framework (3), and a plurality of adjusting holes (5) are provided on each of the cage diameter adjusting parts (4), and the positions of the adjusting holes (5) on the plurality of cage diameter adjusting parts (4) correspond to each other one by one; A plurality of cage lifting ropes (10), each of the cage lifting ropes (10) is respectively connected to the cage diameter adjusting part (4) through the corresponding adjusting hole (5), and is configured to install reinforcing cages of different diameters according to different positions where the cage lifting ropes (10) are connected to the adjusting holes (5).

2. The large-diameter steel cage lifting tool for bored cast-in-place piles according to claim 1, wherein: The framework (3) includes four bone beams, and the four bone beams are in a cross shape.

3. The large-diameter steel cage lifting tool for bored cast-in-place piles according to claim 1, characterized in that: It further comprises: A plurality of first U-shaped shackles (11), respectively installed on the plurality of cage lifting ropes (10).

4. The large-diameter steel cage lifting tool for bored cast-in-place piles according to claim 1, characterized in that: The rope system (13) includes: A plurality of lifting lugs (1), evenly installed around the upper part of the framework (3), and a shackle insertion hole (2) is provided on the lifting lug (1); A plurality of suspension ropes (9), one end of which is connected to the lifting lug (1) through the shackle insertion hole (2).

5. The large-diameter steel cage lifting tool for bored cast-in-place piles according to claim 4, characterized in that: The rope system (13) further comprises: A second U-shaped shackle (14), and the other ends of the plurality of suspension ropes (9) are connected to the second U-shaped shackle (14).

6. The large-diameter steel cage lifting tool for bored cast-in-place piles according to claim 2, characterized in that: A groove (12) is provided on the framework (3); Two first reinforcing plates (6), respectively installed above and below the framework (3), and the first reinforcing plates (6) are located at the center where the four bone beams are connected.

7. The large-diameter steel cage lifting tool for bored cast-in-place piles according to claim 6, characterized in that: It further comprises: A second reinforcing plate (7), installed on the groove (12), and the second reinforcing plate (7) is located at the center where the four bone beams are connected.

8. The large-diameter steel cage lifting tool for bored cast-in-place piles according to claim 6, wherein: It further comprises: A plurality of vertical rib plates (8), evenly installed on the groove (12).

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