Supporting device used after rotary excavating pile hole forming

Abstract

The utility model relates to the technical field of building pile hole retaining walls, in particular to a supporting device used after rotary excavating pile hole forming, which comprises a top frame and a bottom frame, the middle of the top frame is in threaded connection with three connecting columns, the bottom ends of the connecting columns are all in threaded connection with the bottom frame, and the bottom surface of the top frame and the top surface of the bottom frame are both fixedly connected with six guide rails. Compared with the prior art, the device has the advantages that the top frame, the bottom frame and the three connecting columns are arranged so that an installation frame can be assembled conveniently, the six arc-shaped fixing frames are connected with the guide rails in a sliding mode through the sliding blocks, the inclined blocks are connected with the concave blocks in a sliding mode, in the using process, the whole device is hoisted in a drill hole, a connecting pipe is hammered, and the installation frame is convenient to assemble. According to the drilling machine, the inclined blocks push the concave blocks, the six fixing frames slide towards the inner wall of a drilled hole, the six partition plates are inserted into the limiting grooves correspondingly, a cylindrical stable structure is combined, the inner wall of the drilled hole is stably supported conveniently, and the drilling machine is simple in overall structure, reasonable in design and convenient to use and popularize.

Description

Technical Field

[0001] The utility model relates to the technical field of building pile hole wall protection, in particular to a supporting device used for rotary pile drilling after the hole is formed. Background Art

[0002] Rotary bored piles are a commonly used pile foundation form in current construction. The hole-making process is to rotate the barrel drill bit at the bottom of the rotary drilling rig to take soil, and then unload the soil outside the hole, and repeat this cycle to drill to the designed depth. During the hole-making operation of rotary bored piles, for soil layers with good adhesion, dry drilling can be used for hole-making processes without mud wall protection. However, for very loose and weak soil layers, or when there is groundwater distribution, the hole wall will become extremely unstable. Even if mud wall protection measures are adopted, hole collapse often occurs during the reverse circulation hole cleaning process or in the subsequent concrete pouring process. Especially during the concrete pouring stage, once the hole collapses, it often causes serious quality accidents. Based on this, a support device for rotary piles after hole-making is proposed to support the inner wall of the borehole. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a supporting device for rotary pile drilling after hole formation, which effectively solves the shortcomings of the prior art.

[0004] In order to achieve the above-mentioned purpose, an embodiment of one aspect of the utility model provides a support device for rotary drilling piles after hole formation, comprising a top frame and a bottom frame, three connecting columns are threadedly connected to the middle part of the top frame, and the bottom ends of the connecting columns are threadedly connected to the bottom frame, the bottom surface of the top frame and the top surface of the bottom frame are fixedly connected with six guide rails, six arc-shaped fixed frames are slidably connected between the multiple guide rails, and blocking nets are fixedly connected inside them, and spacers that can slide vertically are arranged between adjacent side surfaces of the six arc-shaped fixed frames, and the positions on both sides of the six arc-shaped fixed frames are rotatably connected to two connecting rods, and the multiple connecting rods are grouped in pairs, the middle part of the top surface of the bottom frame is fixedly connected to a limiting tube, and the inside of the limiting tube is slidably connected to a connecting tube, and the outer wall of the connecting tube is fixedly connected to a plurality of connecting rods, and the ends thereof respectively point to the middle part of the spacer plate, one end of the plurality of connecting rods is fixedly connected to an inclined block, the outer walls of the plurality of inclined blocks are slidably connected to a concave block, and the other side of the plurality of concave blocks is rotatably connected to one end of the plurality of groups of connecting rods.

[0005] Preferably, any of the above schemes is that a hanging frame is fixedly connected to the middle part of the top surface of the top frame, and a gap is left between the outer wall of the hanging frame and the outer walls of the three connecting columns. By using this scheme, it is convenient to hang it with the hook of the external hanging equipment, and then it is convenient to hang the device as a whole through the hanging equipment.

[0006] Preferably, any of the above schemes is that the multiple guide rails are fixedly connected to the top frame and the bottom frame by welding, and the multiple guide rails are distributed in a circular array with the axis of the connecting tube as the center. By using this scheme, it is convenient to evenly distribute the multiple guide rails on the top frame and the bottom frame, and make the multiple guide rails correspond to each other in pairs, thereby facilitating guiding the movement of the six arc-shaped fixed frames.

[0007] Preferably, any of the above schemes is that the middle part of the top surface and the middle part of the bottom surface of the six arc-shaped fixed frames are fixedly connected with sliders, and are slidably connected to the plurality of guide rails. This scheme facilitates guiding the movement of the arc-shaped fixed frames through the sliding connection between the sliders and the guide rails, thereby facilitating the synchronous movement of the six arc-shaped fixed frames.

[0008] Preferably, any of the above schemes has limiting grooves on both sides of the six arc-shaped fixed frames, and both sides of the six partition plates are slidably connected to the limiting grooves respectively. After the six arc-shaped fixed frames are pushed into place, this scheme facilitates inserting the partition plates into the limiting grooves to assemble into a circular structure.

[0009] Preferably, any of the above schemes has two ends of the multiple connecting rods rotatably connected to the side surfaces of the six arc-shaped fixed frames and one side of the multiple concave blocks through pins. By using this scheme, it is convenient for the multiple connecting rods to rotate relative to the six arc-shaped fixed frames and the multiple concave blocks, thereby facilitating relative sliding between the multiple inclined blocks and the concave blocks, thereby facilitating pushing the six arc-shaped fixed frames into place.

[0010] The utility model has the following advantages:

[0011] 1. The supporting device for rotary drilling piles after drilling holes is convenient to assemble into an installation frame by setting a top frame, a bottom frame and three connecting columns, and six arc-shaped fixed frames are slidably connected to a plurality of guide rails through sliders, and a plurality of inclined blocks are slidably connected to a plurality of concave blocks. When in use, the whole is hoisted inside the borehole, and then the connecting pipe is hammered to make the inclined block push the concave block, so that the six fixed frames slide toward the inner wall of the borehole, and the six spacer plates are respectively inserted into the inside of the limit grooves to combine into a cylindrical stable structure, which is convenient for stably supporting the inner wall of the borehole. The overall structure is simple and the design is reasonable, which is convenient for popularization and use.

[0012] 2. This kind of support device used for rotary drilling pile after hole formation is fixedly connected to the top frame through a lifting frame, which makes it convenient for users to lift the whole through lifting equipment. By setting the top frame, the bottom frame and three connecting columns, after the overall assembly is completed, the three connecting columns are screwed out, so that the connecting pipe and the top frame can be taken out from the inside of the drilled hole respectively, which is convenient for recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1This is a schematic diagram of the structure of the utility model from a first perspective;

[0014] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0015] Figure 3 It is a schematic diagram of the cutaway structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the assembly structure of the top frame and the bottom frame of the utility model;

[0017] Figure 5 This is a schematic diagram of the arc-shaped fixed frame splicing structure of the utility model;

[0018] Figure 6 This is a schematic diagram of the connecting pipe structure of the utility model.

[0019] In the figure: 1-top frame, 2-bottom frame, 3-partition plate, 4-guide rail, 5-blocking net, 6-arc fixing frame, 7-connecting rod, 8-connecting column, 9-hanging frame, 10-oblique block, 11-concave block, 12-connecting rod, 13-connecting pipe, 14-slider, 15-limiting pipe, 16-limiting groove. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings, but the protection scope of the utility model is not limited to the following description.

[0021] like Figures 1 to 6 As shown, a support device for rotary pile drilling after hole formation comprises a top frame 1 and a bottom frame 2. The middle part of the top frame 1 is threadedly connected with three connecting columns 8, and the bottom ends of the connecting columns are threadedly connected with the bottom frame 2. Six guide rails 4 are fixedly connected to the bottom surface of the top frame 1 and the top surface of the bottom frame 2. Six arc-shaped fixed frames 6 are slidably connected between the multiple guide rails 4, and the insides of the six arc-shaped fixed frames are fixedly connected with blocking nets 5. The adjacent sides of the six arc-shaped fixed frames 6 are provided with spacers 3 that can slide vertically. The positions on both sides of the six arc-shaped fixed frames 6 are There are two connecting rods 12 rotatably connected to each other, and the multiple connecting rods 12 are grouped in pairs. The middle part of the top surface of the base frame 2 is fixedly connected to a limiting tube 15, and the inside of the limiting tube 15 is slidably connected to a connecting tube 13. The outer wall of the connecting tube 13 is fixedly connected to a plurality of connecting rods 7, and the ends thereof respectively point to the middle part of the partition plate 3. One ends of the multiple connecting rods 7 are fixedly connected to an inclined block 10, and the outer walls of the multiple inclined blocks 10 are slidably connected to a concave block 11, and the other sides of the multiple concave blocks 11 are rotatably connected to one end of the multiple groups of connecting rods 12.

[0022] A lifting frame 9 is fixedly connected to the middle of the top surface of the top frame 1, and a gap is left between the outer wall of the lifting frame 9 and the outer walls of the three connecting columns 8. As an optional technical solution of the utility model, this makes it easy to hang with the hook of the external lifting equipment, and then facilitates the overall lifting of the device through the lifting equipment.

[0023] Multiple guide rails 4 are fixedly connected to the top frame 1 and the bottom frame 2 by welding. Multiple guide rails 4 are distributed in a circular array with the axis of the connecting tube 13 as the center. As an optional technical solution of the utility model, this makes it easy to evenly distribute multiple guide rails 4 on the top frame 1 and the bottom frame 2, and make multiple guide rails 4 correspond to each other in pairs, thereby facilitating guiding the movement of the six arc-shaped fixed frames 6.

[0024] The middle part of the top surface and the middle part of the bottom surface of the six arc-shaped fixed frames 6 are fixedly connected with sliders 14, and are slidably connected to multiple guide rails 4. As an optional technical solution of the present invention, the sliders 14 are slidably connected to the guide rails 4, thereby facilitating the movement of the arc-shaped fixed frames 6, thereby facilitating the synchronous movement of the six arc-shaped fixed frames 6.

[0025] Limiting grooves 16 are provided on both sides of the six arc-shaped fixed frames 6, and the two sides of the six partition plates 3 are respectively slidably connected to the limiting grooves 16. As an optional technical solution of the utility model, after the six arc-shaped fixed frames 6 are pushed into place, it is convenient to insert the partition plates 3 into the inside of the limiting grooves 16 and assemble them into a circular structure.

[0026] Both ends of the multiple connecting rods 12 are rotatably connected to the side surfaces of the six arc-shaped fixing frames 6 and one side of the multiple concave blocks 11 through pins. As an optional technical solution of the utility model, this facilitates relative rotation between the multiple connecting rods 12 and the six arc-shaped fixing frames 6 and the multiple concave blocks 11, thereby facilitating relative sliding between the multiple inclined blocks 10 and the concave blocks 11, thereby facilitating pushing the six arc-shaped fixing frames 6 into place.

[0027] To sum up, when the user uses it, by setting the top frame 1, the bottom frame 2 and the three connecting columns 8, it is convenient to assemble into an installation frame, and the six arc-shaped fixed frames 6 are slidably connected to the multiple guide rails 4 through the sliders 14, and the multiple inclined blocks 10 are slidably connected to the multiple concave blocks 11. When in use, the whole is hoisted inside the drilled hole, and then the connecting pipe 13 is hammered to make the inclined block 10 push the concave block 11, so that the six fixed frames 6 slide toward the inner wall of the drilled hole, and the six spacer plates 3 are respectively inserted into the inside of the limit grooves 16 to form a cylindrical stable structure, which is convenient for stable support of the inner wall of the drilled hole. The overall structure is simple and the design is reasonable, which is convenient for promotion and use. Then, through the hoisting frame 9, the hoisting frame 9 is fixedly connected to the top frame 1, which is convenient for the user to hoist the whole through the hoisting equipment. By setting the top frame 1, the bottom frame 2 and the three connecting columns 8, after the overall assembly is completed, the three connecting columns 8 are unscrewed, so that the connecting pipe 13 and the top frame 1 are respectively taken out from the inside of the drilled hole, which is convenient for recycling.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A support device for rotary pile drilling after hole forming, characterized in that: The invention comprises a top frame (1) and a bottom frame (2), wherein three connecting columns (8) are threadedly connected in the middle of the top frame (1), and the bottom ends of the connecting columns are threadedly connected to the bottom frame (2), and six guide rails (4) are fixedly connected to the bottom surface of the top frame (1) and the top surface of the bottom frame (2), and six arc-shaped fixed frames (6) are slidably connected between the plurality of guide rails (4), and a blocking net (5) is fixedly connected inside the six arc-shaped fixed frames (6), and a vertically slidable partition plate (3) is arranged between adjacent sides of the six arc-shaped fixed frames (6), and two connecting rods (1) are rotatably connected to the positions on both sides of the six arc-shaped fixed frames (6). 2), a plurality of the connecting rods (12) are arranged in groups of two, a limiting tube (15) is fixedly connected to the middle of the top surface of the base frame (2), a connecting tube (13) is slidably connected inside the limiting tube (15), a plurality of connecting rods (7) are fixedly connected to the outer wall of the connecting tube (13), and the ends of the connecting rods (7) are respectively pointed to the middle of the partition plate (3), one end of the plurality of connecting rods (7) is fixedly connected to an inclined block (10), the outer walls of the plurality of inclined blocks (10) are slidably connected to a concave block (11), and the other sides of the plurality of concave blocks (11) are respectively rotatably connected to one end of the plurality of connecting rods (12).

2. A support device for rotary pile drilling after hole formation according to claim 1, characterized in that: A hanging frame (9) is fixedly connected to the middle of the top surface of the top frame (1), and a gap is left between the outer wall of the hanging frame (9) and the outer walls of the three connecting columns (8).

3. A support device for rotary pile drilling after hole formation according to claim 2, characterized in that: The plurality of guide rails (4) are fixedly connected to the top frame (1) and the bottom frame (2) by welding, and the plurality of guide rails (4) are distributed in a circular array with the axis of the connecting pipe (13) as the center.

4. A support device for rotary pile drilling after hole formation according to claim 3, characterized in that: The middle parts of the top surfaces and the bottom surfaces of the six arc-shaped fixed frames (6) are fixedly connected with sliders (14), and are slidably connected with the plurality of guide rails (4).

5. A support device for rotary pile drilling after hole formation according to claim 4, characterized in that: Limiting grooves (16) are provided on both sides of the six arc-shaped fixing frames (6), and both sides of the six partition plates (3) are slidably connected to the limiting grooves (16) respectively.

6. A support device for rotary pile drilling after hole formation according to claim 5, characterized in that: Both ends of the plurality of connecting rods (12) are rotatably connected to the side surfaces of the six arc-shaped fixing frames (6) and one side of the plurality of concave blocks (11) via pins.

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