Automatic fixed orifice frame for positioning of a reinforcement cage of a bored pile

Abstract

The utility model relates to the construction technical field of steel reinforcement cage, especially a kind of automatic fixed orifice frame for drilling pile steel reinforcement cage lowering positioning, including orifice frame and cantilever rod, the lower side of orifice frame is equipped with steel casing, steel reinforcement cage is arranged in the inside of steel casing, orifice frame includes angle connecting block and side connecting block, side connecting block both ends are equipped with telescopic rod, telescopic slot accommodating telescopic rod is set up in angle connecting block;Automatic adjusting support foot is equipped on angle connecting block, and automatic adjusting support foot includes lifting ring and hydraulic leveling support leg, side connecting block is equipped with the through-hole corresponding with cantilever rod;The utility model divides orifice frame into angle connecting block and side connecting block, and is connected by telescopic rod between, adjustable length, can be split simultaneously or shrink and stack, improve the convenience of maintenance, storage, handling, in addition, there is automatic adjusting support foot, adjustable support foot height, ensure that orifice frame is horizontally arranged, effectively guarantee the perpendicularity of steel reinforcement cage lowering.

Description

Technical Field

[0001] This utility model relates to the field of steel cage construction technology, and in particular to an automatic fixing frame for positioning and lowering steel cages for bored piles. Background Technology

[0002] During the construction of bored piles, once the bored pile borehole passes inspection, the lowering of the reinforcing cage can begin. Since the reinforcing cage is typically quite long, it is usually fabricated in sections at the back-end facility and then transported to the site for lowering and connection section by section.

[0003] In existing technologies, a hole frame welded from square steel pipes is used and placed above the steel casing. When the reinforcing cage is lowered and connected section by section, a cantilever rod is used to support the reinforcing cage. After each section of the reinforcing cage is connected, the entire connected reinforcing cage is lifted, the cantilever rod is removed, and the reinforcing cage is lowered. The hole frame is generally pre-welded or manufactured on-site according to construction needs. It has fixed dimensions, is large and heavy, and is inconvenient to operate. In addition, the soil foundation needs to be leveled before construction, which limits its application scenarios. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing an automatic fixing frame for positioning and lowering the reinforcing cage of a bored pile.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An automatic fixing frame for positioning and lowering a reinforcing cage in a bored pile includes a frame and a cantilever rod. A steel casing is provided on the lower side of the frame, and the reinforcing cage is placed inside the steel casing. The frame includes corner connecting blocks and side connecting blocks. Telescopic rods are provided at both ends of the side connecting blocks, and telescopic grooves for accommodating the telescopic rods are provided on the corner connecting blocks. Automatic adjusting legs are provided on the corner connecting blocks, each including a lifting ring and a hydraulic leveling leg. Through holes corresponding to the cantilever rods are provided on the side connecting blocks, and limiting pads are provided on the upper side of the side connecting blocks.

[0006] Preferably, the orifice frame is frame-shaped and is evenly distributed on the outside of the steel casing, and a suspension device is provided on the upper side of the reinforcing cage.

[0007] Preferably, there are four sets of corner connecting blocks and side connecting blocks. The corner connecting blocks are arranged in a rectangular shape, and the side connecting blocks are arranged between the corner connecting blocks. The telescopic rod is slidably connected to the telescopic groove, and a positioning and locking device is provided between the telescopic rod and the telescopic groove.

[0008] Preferably, the hydraulic leveling outrigger includes a hydraulic telescopic rod and a tapered foot, the hydraulic telescopic rod being detachably connected to the corner connecting block; the hydraulic telescopic rod is connected to a hydraulic control device via a pipeline, and the orifice frame is equipped with an angle sensor.

[0009] Preferably, the cantilever rod is horizontally arranged, the cantilever rod is movably connected to the through hole, and a limiting ring is provided at one end of the cantilever rod; a positioning groove and a milled flat surface are opened on the cantilever rod, and a magnet is embedded in the cantilever rod.

[0010] Preferably, a connecting rope is fitted onto the cantilever rod, one end of which passes around the limiting pad and is detachably connected to the reinforcing cage.

[0011] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model divides the orifice frame into corner connecting blocks and side connecting blocks, which are connected by telescopic rods. The length can be adjusted, and it can be disassembled and assembled or retracted and stacked, which improves the convenience of maintenance, storage and transportation. In addition, it is equipped with automatic adjustable legs, which can adjust the height of the legs to adapt to uneven soil foundations, ensure that the orifice frame is set horizontally, and effectively ensure the verticality of the steel cage when it is lowered. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the construction state of an automatic fixing frame for lowering and positioning the reinforcing cage of a bored pile, as proposed in this utility model. Figure 2 This is a top view of the construction state of an automatic fixing frame for lowering and positioning the reinforcing cage of a bored pile, as proposed in this utility model. Figure 3 This is a three-dimensional structural diagram of an automatic fixing frame for positioning the lowering of the reinforcing cage of a bored pile, as proposed in this utility model. Figure 4 This is a three-dimensional structural diagram of an automatic fixing frame for lowering and positioning the reinforcing cage of a bored pile, as proposed in this utility model. Figure 5 This is a three-dimensional structural diagram of the suspended state of the rebar cage of the bored pile rebar cage for lowering and positioning, as proposed in this utility model.

[0013] In the diagram: 1. Rebar cage; 2. Automatically adjustable support leg; 21. Lifting ring; 22. Hydraulic leveling support leg; 3. Orifice frame; 31. Corner connecting block; 32. Telescopic rod; 33. Side connecting block; 4. Cantilever rod; 41. Positioning groove; 42. Milled flat surface; 43. Magnet; 5. Steel casing; 6. Limiting pad; 7. Connecting rope. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0015] Reference Figure 1-5 An automatic fixing frame for positioning and lowering a drilled pile reinforcement cage includes a frame 3 and a cantilever rod 4. A steel casing 5 is provided on the lower side of the frame 3. The frame 3 is frame-shaped and evenly distributed on the outside of the steel casing 5. A reinforcement cage 1 is provided on the inside of the steel casing 5. A suspension device is provided on the upper side of the reinforcement cage 1. The suspension device is generally a crane. The suspension device lifts the reinforcement cage 1 and lowers it step by step. The borehole frame 3 is divided into corner connecting blocks 31 and side connecting blocks 33, which are adjustable in size to adapt to different drilled pile reinforcement cages and are convenient for storage and transportation. Generally, there are four sets of corner connecting blocks 31 and side connecting blocks 33. The corner connecting blocks 31 are arranged in a rectangular shape, and the side connecting blocks 33 are set between the corner connecting blocks 31. The two ends of the side connecting blocks 33 are provided with telescopic rods 32. The corner connecting blocks 31 are provided with telescopic grooves to accommodate the telescopic rods 32. The telescopic rods 32 and the telescopic grooves are slidably connected. A positioning and locking device is provided between the telescopic rods 32 and the telescopic grooves. The positioning and locking device uses a pin or a locking screw to lock and position the telescopic rods 32 and the corner connecting blocks 31. An automatic adjusting foot 2 is provided on the corner connecting block 31 to overcome the influence of uneven soil foundation and ensure that the orifice frame 3 is level. Considering cost, the automatic adjusting foot 2 can be replaced with a manual adjusting foot, and the height can be adjusted by a screw. The automatic adjusting foot 2 includes a lifting ring 21 and a hydraulic leveling leg 22. The lifting ring 21 facilitates the lifting and adjustment of the orifice frame 3 position by a crane. The hydraulic leveling leg 22 includes a hydraulic telescopic rod and a tapered foot. The hydraulic telescopic rod is detachably connected to the corner connecting block 31 for easy disassembly, replacement and maintenance. The hydraulic telescopic rod is connected to a hydraulic control device through a pipeline. The hydraulic control device includes a control valve, an oil pump and an oil tank. The orifice frame 3 is equipped with an angle sensor. By detecting the levelness of the orifice frame 3, the length of the hydraulic telescopic rod is adjusted by the hydraulic control device to ensure that the orifice frame 3 is set horizontally and avoid affecting the verticality of the lowering of the reinforcing cage 1. The side connecting block 33 is provided with a through hole corresponding to the cantilever rod 4. The cantilever rod 4 is set horizontally and is movably connected to the through hole. The cantilever rod 4 slides or rotates in the through hole. One end of the cantilever rod 4 is provided with a limiting ring, which is convenient to hold or insert into the pry bar for operation. At the same time, the diameter of the limiting ring is larger than the diameter of the through hole to prevent the cantilever rod 4 from sliding into the through hole. Furthermore, a positioning groove 41 and a milled flat surface 42 can be opened on the cantilever rod 4. A magnet 43 is embedded on the cantilever rod 4. The positioning groove 41 and the milled flat surface 42 are used to stably and reliably support the steel cage 1, increase the contact area, and reduce the shaking of the steel cage 1. When the cantilever rod 4 is pulled out, the magnetic force of the magnet 43 will attract the cantilever rod 4 to the side connecting block 33, increase the sliding resistance, and prevent it from loosening and falling off. In addition, the cantilever rod 4 can be a hydraulic rod to achieve automatic telescopic adjustment. The hydraulic rod can be detachably installed in the through hole. A milled flat surface 42 is opened on the upper surface of the piston rod of the hydraulic rod to ensure stable support of the steel cage 1. A limiting pad 6 is provided on the upper side of the side connecting block 33. The limiting pad 6 is made of wood or plastic. A connecting rope 7 is sleeved on the cantilever rod 4. One end of the connecting rope 7 passes around the limiting pad 6 and is detachably connected to the steel cage 1. A groove is provided on the upper side of the limiting pad 6 to limit the connecting rope 7 and prevent the connecting rope 7 from scratching the hole frame 3.

[0016] In this embodiment, before the steel cage 1 is lowered, the orifice frame 3 is installed, the telescopic rod 32 is adjusted, the size of the orifice frame 3 is changed to match the steel casing 5, the conical support is inserted into the soil foundation for fixation, and the orifice frame 3 is leveled by the hydraulic telescopic rod. During the lowering of the steel cage 1, when segmenting and positioning, push the cantilever rod 4 through the through hole, adjust the angle, and use the positioning groove 41 or the milled flat surface 42 to support the steel cage 1, which facilitates the construction personnel to perform welding operations on the steel cage 1. After the steel cage 1 is lowered, it is secured by the connecting rope 7 to prevent it from sinking.

[0017] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0018] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0019] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

Claims

1. An automatic fixing frame for positioning and lowering the reinforcing cage of a bored pile, comprising a frame (3) and a cantilever rod (4), characterized in that, The orifice frame (3) is provided with a steel casing (5) on the lower side, and a steel cage (1) is provided inside the steel casing (5). The orifice frame (3) includes a corner connecting block (31) and a side connecting block (33). The side connecting block (33) is provided with telescopic rods (32) at both ends. The corner connecting block (31) is provided with a telescopic groove to accommodate the telescopic rods (32). The corner connecting block (31) is provided with an automatic adjusting foot (2), the automatic adjusting foot (2) includes a lifting ring (21) and a hydraulic leveling leg (22), the side connecting block (33) is provided with a through hole corresponding to the cantilever rod (4), and the side connecting block (33) is provided with a limiting pad (6) on the upper side.

2. The automatic fixing frame for lowering and positioning the reinforcing cage of a bored pile according to claim 1, characterized in that, The orifice frame (3) is frame-shaped and is evenly arranged on the outside of the steel casing (5). The upper side of the steel cage (1) is provided with a suspension device.

3. The automatic fixing frame for lowering and positioning the reinforcing cage of a bored pile according to claim 2, characterized in that, The corner connecting block (31) and the side connecting block (33) are provided in four groups. The corner connecting block (31) is distributed in a rectangular shape, and the side connecting block (33) is arranged between the corner connecting blocks (31). The telescopic rod (32) is slidably connected to the telescopic groove, and a positioning and locking device is provided between the telescopic rod (32) and the telescopic groove.

4. The automatic fixing frame for lowering and positioning the reinforcing cage of a bored pile according to claim 1, characterized in that, The hydraulic leveling outrigger (22) includes a hydraulic telescopic rod and a tapered outrigger, and the hydraulic telescopic rod is detachably connected to the corner connecting block (31); The hydraulic telescopic rod is connected to a hydraulic control device via a pipeline, and an inclination sensor is provided on the orifice frame (3).

5. The automatic fixing frame for lowering and positioning the reinforcing cage of a bored pile according to claim 1, characterized in that, The cantilever rod (4) is horizontally arranged, and the cantilever rod (4) is movably connected to the through hole. One end of the cantilever rod (4) is provided with a limiting ring. The cantilever rod (4) is provided with a positioning groove (41) and a milled flat surface (42), and a magnet (43) is embedded in the cantilever rod (4).

6. The automatic fixing frame for lowering and positioning the reinforcing cage of a bored pile according to claim 1, characterized in that, A connecting rope (7) is fitted on the cantilever rod (4). One end of the connecting rope (7) passes around the limiting pad (6) and is detachably connected to the steel cage (1).

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