Multifunctional operation platform for large-diameter cast-in-situ bored pile

Abstract

The utility model relates to the technical field of building construction, in particular to a multifunctional working platform for a large-diameter cast-in-situ bored pile, which comprises a bearing structure, a grating structure and a limiting structure, the bearing structure is arranged at an orifice part, the grating structure is fixed on the bearing structure, and the limiting structure is arranged on the grating structure. The grid structure is arranged in the middle of the reinforcement cage in a filling mode to form a working platform, the limiting structure is arranged on the bearing structure and comprises a guide pipe limiting opening, a concrete pouring guide pipe can penetrate through the guide pipe limiting opening, and the guide pipe limiting opening is matched with a protruding structure on the concrete pouring guide pipe to limit movement of the concrete pouring guide pipe. In the utility model, the outer diameter of the grating structure is the same as the inner diameter of the reinforcement cage, so that the diameters and the distances of the reinforcements can be positioned, and meanwhile, the grating structure also has a shaping function to prevent the reinforcement cage from being deformed in the pouring process.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, and particularly relates to a multi-functional operation platform for large-diameter bored cast-in-place piles. Background Art

[0002] In large-diameter bored cast-in-place piles, when the pile diameter > 1.5 m, a closed operation platform is not provided at the orifice. A steel casing is installed in the bored cast-in-place pile, a crane suspends a concrete pouring conduit, the concrete pouring conduit is aligned with the bored cast-in-place pile, and a concrete truck feeds concrete into the bored cast-in-place pile through the concrete pouring conduit. During the pouring process, since the concrete pouring conduit will swing, the staff needs to continuously adjust the position of the conduit to make the concrete pour into the bored cast-in-place pile more evenly. However, when the staff adjusts the position of the conduit, there is a situation where they may fall into the bored cast-in-place pile, thus triggering the occurrence of safety accidents. Content of the Utility Model

[0003] Aiming at the technical problems existing in the background art, the purpose of the utility model is to provide a multi-functional operation platform for large-diameter bored cast-in-place piles. Before pouring, an operation platform is installed at the orifice, and the staff can stand on the working platform to pour concrete, preventing the staff from falling into the bored cast-in-place pile.

[0004] To achieve the above purpose, the technical solution provided by the utility model is as follows:

[0005] A multi-functional operation platform for large-diameter bored cast-in-place piles, the operation platform includes a load-bearing structure, a grid structure, and a limiting structure. The load-bearing structure is erected at the orifice part, the grid structure is fixed on the load-bearing structure, and the grid structure is filled in the middle of the steel reinforcement cage to form an operation platform. The limiting structure is arranged on the load-bearing structure. The limiting structure includes a conduit limiting orifice through which a concrete pouring conduit can pass. The conduit limiting orifice cooperates with a convex structure on the concrete pouring conduit to limit the movement of the concrete pouring conduit.

[0006] Preferably, the cross-section of the grid structure is circular, and its outer diameter cooperates with the inner diameter of the steel reinforcement cage to limit the lateral movement of the steel reinforcement cage.

[0007] Preferably, both ends of the load-bearing structure are provided with steel bar limiting orifices through which the steel bars of the steel reinforcement cage can pass.

[0008] Preferably, the limiting structure includes a group of limiting plates that can be opened and closed relatively. A semi-circular orifice is arranged on the opposite side of the limiting plates, and the two semi-circular orifices are combined to form the conduit limiting orifice.

[0009] Preferably, the limiting structure further includes a rotating pin shaft and a rotating handle. The limiting plates are rotatably connected to the load-bearing structure through the rotating pin shaft, and the rotating handle is connected to the limiting plates.

[0010] Preferably, the load-bearing structure includes a load-bearing plate, which includes support rods I, II, III, and IV. Support rods I and II enclose a rectangle. Support rod III is arranged inside the rectangle. Support rod IV connects several support rods III. The steel bar limiting opening is enclosed by two adjacent support rods III.

[0011] Preferably, the grid structure includes annular connecting rods I, II, and III. There are several connecting rods II, and connecting rods II are arranged on both sides of the inner wall of connecting rod I. Connecting rod III is arranged inside connecting rod I, and connecting rod III connects several connecting rods II.

[0012] The utility model has the following advantages and beneficial effects:

[0013] In the utility model, the outer diameter of connecting rod I is the same as the inner diameter of the steel reinforcement cage, which can locate the diameter and spacing of the steel bars. At the same time, it also has a shaping function to prevent the steel reinforcement cage from deforming during the pouring process. The pouring pipe is inserted into the hole. During the pouring process, the pouring pipe will vibrate. The limiting plate can transfer the load generated by the poured concrete to the load-bearing plate, prevent the limiting plate from being damaged, and increase the stability of the overall structure. Description of the Drawings

[0014] Figure 1 is a connection schematic diagram of a multi-functional operation platform for large-diameter bored cast-in-place piles provided by the utility model;

[0015] Figure 2 is a schematic diagram of the grid structure of a multi-functional operation platform for large-diameter bored cast-in-place piles provided by the utility model;

[0016] Figure 3 is a schematic diagram of the load-bearing structure of a multi-functional operation platform for large-diameter bored cast-in-place piles provided by the utility model;

[0017] Figure 4 is a connection schematic diagram of the load-bearing structure and the limiting structure of a multi-functional operation platform for large-diameter bored cast-in-place piles provided by the utility model;

[0018] Figure 5 is for Figure 4 the front view;

[0019] Figure 6 is a connection schematic diagram of the concrete pouring conduit of a multi-functional operation platform for large-diameter bored cast-in-place piles provided by the utility model;

[0020] Figure 7 is for Figure 5 the partial enlarged view;

[0021] Icon: 1 - steel casing, 2 - steel reinforcement cage, 3 - grid structure, 31 - connecting rod Ⅰ, 32 - connecting rod Ⅱ, 33 - connecting rod Ⅲ, 4 - load-bearing structure, 41 - support rod Ⅰ, 42 - support rod Ⅱ, 43 - support rod Ⅲ, 44 - support rod Ⅳ, 45 - steel bar limit opening, 5 - limit plate, 51 - conduit limit opening, 6 - rotating pin shaft, 61 - rotating handle, A - through slot, B - opening, C - concrete pouring conduit. Detailed implementation mode

[0022] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention.

[0023] 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 present invention to be protected, but merely represents the selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0024] Embodiment

[0025] As Figure 1-6 shown, a multi-functional operation platform for large-diameter bored cast-in-place piles, the operation platform includes a load-bearing structure 4, a grid structure 3 and a limit structure. The load-bearing structure 4 is erected at the hole opening part, the grid structure 3 is fixed on the load-bearing structure 4, and the grid structure 3 is filled in the middle of the steel reinforcement cage 2 to form an operation platform. The limit structure is arranged on the load-bearing structure 4. The limit structure includes a conduit limit opening 51 that can penetrate the concrete pouring conduit C. The conduit limit opening 51 cooperates with the convex structure on the concrete pouring conduit C to limit the movement of the concrete pouring conduit C.

[0026] As Figure 1 、 2As shown in the figure, the grid structure 3 includes connecting rod Ⅰ 31, connecting rod Ⅱ 32 and connecting rod Ⅲ 33. There are several connecting rods Ⅱ 32, and the connecting rods Ⅱ 32 are arranged on both sides of the inner wall of the connecting rod Ⅰ 31. A through groove A is formed by enclosing between the connecting rods Ⅱ 32 on both sides. The load-bearing structure 4 is connected at the position of the through groove A, and both sides of the load-bearing structure 4 are connected to the connecting rod Ⅰ 31, and both ends are connected to the connecting rod Ⅱ 32. The connection method is welding. The connecting rod Ⅲ 33 is arranged inside the connecting rod Ⅰ 31, and the connecting rod Ⅲ 33 connects several connecting rods Ⅱ 32 to increase the stability of the overall grid structure 3. When only the steel reinforcement cage 2 is arranged in the bored cast-in-place pile, concrete is continuously poured into the bored cast-in-place pile, and the concrete will bring greater pressure to the steel reinforcement cage 2, causing the steel bars in the steel reinforcement cage 2 to deform. The grid structure 3 is connected to the steel reinforcement cage 2. The cross-section of the grid structure 3 is circular, and the outer diameter of the connecting rod Ⅰ 31 is matched with the inner diameter of the steel reinforcement cage 2 to limit the lateral movement of the steel reinforcement cage 2, which can protect the structure of the steel reinforcement cage 2 to a great extent.

[0027] As Figure 1 , 3 , 4, 5, 6 as shown, the load-bearing structure 4 includes support rod Ⅰ 41, support rod Ⅱ 42, support rod Ⅲ 43 and support rod Ⅳ 44. The support rod Ⅰ 41 and the support rod Ⅱ 42 enclose a rectangle, and an opening B is formed in the middle of the rectangle by the support rod Ⅰ 41 and the support rod Ⅱ 42. The support rod Ⅲ 43 is arranged inside the rectangle, and the support rod Ⅳ 44 connects several support rods Ⅲ 43. The steel bar limiting opening 45 is formed by enclosing between two adjacent support rods Ⅲ 43. When the steel reinforcement cage 2 is attached to the connecting rod Ⅰ 31, some of the steel bars on the steel reinforcement cage 2 extend out from the steel bar limiting opening 45. When adjusting the position of the working platform on the steel casing 1, the position of the steel reinforcement cage 2 is also adjusted synchronously, which is convenient for positioning the pouring point.

[0028] As Figure 1 , 4 , 5, 6, 7 as shown, the limiting structure includes a group of limit plates 5 that can be opened and closed relative to each other, a rotating pin 6 and a rotating handle 61. Semi-circular openings are provided on the opposite sides of the limit plates 5, and the two semi-circular openings are combined to form a conduit limiting opening 51. The limiting structure is arranged at the opening B position in the middle of the load-bearing structure 4, and the conduit limiting opening 51 is aligned with the opening B, and the limit plates 5 and the load-bearing structure 4 are also connected by a fixed connection method. When the concrete pouring conduit C is connected to the conduit limiting opening 51, the concrete pouring conduit C will vibrate during the pouring process. At this time, the limit plates 5 will transfer a large amount of load to the load-bearing structure 4 to protect the limit plates 5 and the concrete pouring conduit C and prevent the limit plates 5 from being worn during the pouring process.

[0029] As Figure 1 , 4As shown in Figures 5, 6, and 7, the limit plate 5 is rotatably connected to the load-bearing structure 4 through a rotating pin 6. The rotating handle 61 is fixedly arranged on the limit plate 5. By pulling the rotating handle 61, the limit plate 5 can be rotated. Before pouring, first open the limit plate 5, insert the concrete pouring conduit C into the bored cast-in-place pile. After adjusting the concrete pouring conduit C to a suitable position, close the limit plate 5 so that the limit plate 5 is cooperatively connected with the convex structure on the concrete pouring conduit C to support the concrete pouring conduit C. There is no need for a crane to hold the concrete pouring conduit C, ensuring the stability of the concrete pouring conduit C during the pouring process and facilitating disassembly and assembly at the same time.

[0030] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A multi-functional operation platform for large-diameter bored cast-in-place piles, characterized in that The working platform includes a load-bearing structure, a grid structure, and a limiting structure. The load-bearing structure is erected at the orifice position. The grid structure is fixed on the load-bearing structure, and the grid structure is filled in the middle of the steel reinforcement cage to form a working platform. The limiting structure is arranged on the load-bearing structure. The limiting structure includes a conduit limiting orifice through which a concrete pouring conduit can pass. The conduit limiting orifice cooperates with a convex structure on the concrete pouring conduit to limit the movement of the concrete pouring conduit.

2. The multi-functional operation platform for large-diameter bored cast-in-place piles according to claim 1, wherein: The cross-section of the grid structure is circular, and its outer diameter cooperates with the inner diameter of the steel reinforcement cage to limit the lateral movement of the steel reinforcement cage.

3. The multi-functional operation platform for large-diameter bored cast-in-place piles according to claim 1, characterized in that: Both ends of the load-bearing structure are provided with steel bar limiting orifices through which the steel bars of the steel reinforcement cage can pass.

4. A multi-functional operation platform for large-diameter bored cast-in-place piles according to claim 2, characterized in that: The limiting structure includes a group of limiting plates that can be opened and closed relative to each other. Semi-circular orifices are arranged on the opposite sides of the limiting plates, and the two semi-circular orifices are combined to form the conduit limiting orifice.

5. A multi-functional operation platform for large-diameter bored cast-in-place piles according to claim 4, characterized in that: The limiting structure further includes a rotating pin shaft and a rotating handle. The limiting plate is rotatably connected to the load-bearing structure through the rotating pin shaft, and the rotating handle is connected to the limiting plate.

6. The multi-functional working platform for large-diameter bored cast-in-place piles according to claim 3, characterized in that: The load-bearing structure includes support rod Ⅰ, support rod Ⅱ, support rod Ⅲ, and support rod Ⅳ. Support rod Ⅰ and support rod Ⅱ enclose a rectangle. Support rod Ⅲ is arranged inside the rectangle. Support rod Ⅳ connects several support rod Ⅲs. The steel bar limiting orifice is enclosed by two adjacent support rod Ⅲs.

7. A multi-functional operation platform for large-diameter bored cast-in-place piles according to claim 2, characterized in that: The grid structure includes connecting rod Ⅰ, connecting rod Ⅱ, and connecting rod Ⅲ. There are several connecting rod Ⅱs, and the connecting rod Ⅱs are arranged on both sides of the inner wall of connecting rod Ⅰ. Connecting rod Ⅲ is arranged inside connecting rod Ⅰ, and connecting rod Ⅲ connects several connecting rod Ⅱs to increase the stability of the grid structure.

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