Anti-collapse device for piling and drilling

Abstract

The utility model discloses an anti-collapse device for piling and drilling, and relates to the technical field of cast-in-situ bored pile construction. Comprising an expansion device; the bottom end of the protection device is fixedly connected with the top end of the extension device; the outer wall of the driving device is in sliding connection with the outer wall of the expansion device; the expansion device comprises a telescopic ring, the inner wall of the telescopic ring is fixedly connected with a baffle, and the baffle is fixedly connected with the center axis of the telescopic ring in an annular array. By arranging the protection device and the protection net, soil, stones and other substances around a drilled hole can be effectively blocked, the risk of collapse is greatly reduced, and safe construction is guaranteed. Even under the complex geological condition, the stable protection effect can be provided, a baffle in an expansion ring in the expansion device plays a role in supporting and separating, the overall structural stability of the device is enhanced, large pressure and impact force can be borne, and deformation and damage caused by external force are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of bored pile construction, in particular to a pile drilling anti-collapse device. Background Art

[0002] In the field of building and foundation engineering construction, pile drilling is a common and critical process. However, in the process of pile drilling, the problem of borehole collapse is often faced. Traditional pile drilling anti-collapse measures often have many shortcomings. Some anti-collapse devices are of fixed size and cannot adapt to boreholes of different diameters. As a result, when facing multiple borehole size requirements, it is necessary to prepare a variety of devices of different specifications, which increases the cost and construction complexity. Moreover, the protective effect of these devices is limited. When facing complex geological conditions and high pressure, the protection is prone to failure, and it is impossible to effectively block soil and stone and other materials, thereby increasing the risk of collapse. In addition, the structural stability of traditional devices is poor, and they are prone to deformation and damage when subjected to large external forces, affecting the performance of their protective functions. This not only brings safety hazards to construction, but also may lead to delays in construction progress and increased costs. For example, in some construction projects in the past, because the anti-collapse devices used could not flexibly adapt to changes in borehole size, they had to be replaced frequently, which consumed a lot of time and manpower. At the same time, in areas with more complex geological conditions, due to the insufficient performance of protective devices, borehole collapse accidents occurred, causing injuries and equipment damage. Utility Model Content

[0003] In view of the deficiencies in the prior art, the technical solution adopted by the utility model to solve the technical problems is: a pile driving and drilling anti-collapse device, comprising: an expansion device; a protective device, the bottom end of the protective device is fixedly connected to the top end of the expansion device; a driving device, the outer wall of the driving device is slidably connected to the outer wall of the expansion device; the expansion device comprises a telescopic ring, the inner wall of the telescopic ring is fixedly connected with a baffle, the baffle eye is a circular array of the central axis of the telescopic ring, the outer wall of the telescopic ring is symmetrically fixedly connected with a clamping ring, and the outer wall of the telescopic ring is symmetrically fixedly connected with a clamping column.

[0004] Preferably, the driving device comprises a fixed block, the outer wall of the fixed block is fixedly connected to a screw, the inner wall of the fixed block is slidably connected to a sliding block, and the top of the sliding block is fixedly connected to a connecting block. A fixing hole is provided in the wall of the connecting block, the outer wall of the connecting block is fixedly connected to a limiting column, and the outer wall of the screw is threadedly connected to the inner wall of the sliding block. The sliding block can be pushed to slide in the fixed block by rotating the screw.

[0005] Preferably, the inner wall of the fixing hole is slidably connected to the outer wall of the clamping post, and the outer wall of the limiting post is slidably connected to the inner wall of the clamping ring. The fixing hole on the connecting block is slidably connected to the clamping post on the outer wall of the telescopic ring, and the limiting post is slidably connected to the clamping ring. By rotating the screw rod, the sliding block can be pushed to slide within the fixed block, thereby driving the telescopic ring to expand and contract.

[0006] Preferably, the protective device includes a telescopic frame. A protective net is fixedly connected to the inner wall of the telescopic frame. A guide wheel is fixedly connected to the top end of the telescopic frame. Limiting blocks are symmetrically and rotatably connected to the bottom end of the telescopic frame. A torsion spring is fixedly connected to the outer wall of the limiting block. One end of the torsion spring away from the limiting block is fixedly connected to the outer wall of the telescopic frame. The bottom end of the limiting block is fixedly connected to the outer wall of the telescopic ring. The protective net on the inner wall of the telescopic frame can block substances such as soil and stone around the drill hole, preventing collapse. Under the action of the torsion spring on the limiting block, the telescopic frame rotates, so that multiple telescopic frames are closed.

[0007] The beneficial effects of the present utility model are as follows:

[0008] 1. By setting the driving device, the present utility model can adjust the expansion and contraction of the telescopic ring, adapt to drill holes of different sizes, increase the versatility and application range of the device, and reduce the trouble of replacing different devices due to differences in drill hole sizes. Whether it is a drill hole with a smaller diameter or a larger diameter, this device can be used for effective anti-collapse protection.

[0009] 2. By setting the protective device, the protective net can effectively block substances such as soil and stone around the drill hole, greatly reducing the risk of collapse and ensuring the safe progress of construction. Even under complex geological conditions, it can provide stable protection. The baffle inside the telescopic ring in the expansion device plays a supporting and separating role, enhancing the overall structural stability of the device, being able to withstand greater pressure and impact force, and preventing deformation and damage caused by external forces. Description of the Drawings

[0010] Figure 1 is the front view of the present utility model;

[0011] Figure 2 is the structural schematic diagram of the expansion device of the present utility model;

[0012] Figure 3 is the structural schematic diagram of the driving device of the present utility model;

[0013] Figure 4 is the structural schematic diagram of the protective device of the present utility model.

[0014] In the figure: 1. Expansion device; 11. Telescopic ring; 12. Baffle; 13. Snap ring; 14. Snap post; 2. Protection device; 21. Telescopic frame; 22. Protection net; 23. Guide wheel; 24. Limit block; 25. Torsion spring; 3. Driving device; 31. Fixed block; 32. Connecting block; 33. Fixed hole; 34. Limit post; 35. Screw; 36. Sliding block. Detailed implementation mode

[0015] The present utility model will be further described in detail below with reference to the accompanying drawings and the specific implementation mode. The embodiments of the present utility model are given for purposes of illustration and description, and are not intended to be exhaustive or to limit the present utility model to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present utility model, and to enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.

[0016] Embodiment:

[0017] Please refer to Figure 1 - Figure 4 , the present utility model provides a technical solution: a pile driving and drilling anti-collapse device, comprising: an expansion device 1; a protection device 2, the bottom end of the protection device 2 is fixedly connected to the top end of the expansion device 1; a driving device 3, the outer wall of the driving device 3 is slidably connected to the outer wall of the expansion device 1; the expansion device 1 includes a telescopic ring 11, the inner wall of the telescopic ring 11 is fixedly connected with a baffle 12, the baffle 12 is annularly arranged around the central axis of the telescopic ring 11, the outer wall of the telescopic ring 11 is symmetrically and fixedly connected with snap rings 13, and the outer wall of the telescopic ring 11 is symmetrically and fixedly connected with snap posts 14.

[0018] The driving device 3 includes a fixed block 31, the outer wall of the fixed block 31 is fixedly connected with a screw 35, the inner wall of the fixed block 31 is slidably connected with a sliding block 36, and the top end of the sliding block 36 is fixedly connected with a connecting block 32. A fixed hole 33 is formed in the wall of the connecting block 32, a limit post 34 is fixedly connected to the outer wall of the connecting block 32, and the outer wall of the screw 35 is threadedly connected to the inner wall of the sliding block 36. By rotating the screw 35, the slidably connected sliding block 36 can be pushed to slide inside the fixed block 31.

[0019] The inner wall of the fixed hole 33 is slidably connected to the outer wall of the snap post 14, and the outer wall of the limit post 34 is slidably connected to the inner wall of the snap ring 13. The fixed hole 33 on the connecting block 32 is slidably connected to the snap post 14 on the outer wall of the telescopic ring 11, and the limit post 34 is slidably connected to the snap ring 13. By rotating the screw 35, the sliding block 36 can be pushed to slide inside the fixed block 31, thereby driving the telescopic ring 11 to expand and contract to adapt to different drilling sizes.

[0020] The protective device 2 includes a telescopic frame 21. A protective net 22 is fixedly connected to the inner wall of the telescopic frame 21. A guide wheel 23 is fixedly connected to the top end of the telescopic frame 21. Symmetrically rotatably connected to the bottom end of the telescopic frame 21 are limit blocks 24. An outer wall of the limit block 24 is fixedly connected to a torsion spring 25. One end of the torsion spring 25 away from the limit block 24 is fixedly connected to an outer wall of the telescopic frame 21. The bottom end of the limit block 24 is fixedly connected to an outer wall of the telescopic ring 11. The protective net 22 fixedly connected to the inner wall of the telescopic frame 21 can block substances such as soil and stone around the drill hole to prevent collapse. Under the action of the torsion spring 25 fixedly connected to the limit block 24, the telescopic frame 21 rotates, so that multiple telescopic frames 21 are closed.

[0021] Working principle:

[0022] During use, when working, first place the expansion device 1 on the driving device 3 for installation. The baffle 12 inside the telescopic ring 11 in the expansion device 1 plays a certain supporting and separating role. First, place the driving device 3 at both ends of the pile hole, so that the fixing holes 33 on the connecting block 32 are slidably connected to the clamping posts 14 on the outer wall of the telescopic ring 11, and the limit posts 34 are slidably connected to the clamping ring 13. By rotating the screw 35, the sliding block 36 can be pushed to slide inside the fixed block 31, thereby driving the telescopic ring 11 to expand and contract to adapt to different drill hole sizes. The baffle 12 inside the telescopic ring 11 in the expansion device 1 plays a certain supporting and separating role to prevent the collapse of the pile hole position;

[0023] Through the protective device 2, the protective net 22 on the inner wall of the telescopic frame 21 can block substances such as soil and stone around the drill hole to prevent collapse. Under the action of the torsion spring 25 on the limit block 24, the telescopic frame 21 rotates, so that multiple telescopic frames 21 are closed, making the guide wheel 23 at the top end of the telescopic frame 21 contact the pile rod, and the guide wheel 23 rotates on the telescopic frame 21, so as to rotate when the pile rod moves. When performing pile driving and drilling operations, first place the expansion device 1 at the drill hole position, adjust the size of the telescopic ring 11 through the driving device 3 to match the drill hole size, unfold the protective device 2, and the protective net 22 plays a protective role to ensure the stability of the surrounding soil and stone during the drilling process and prevent the occurrence of collapse accidents.

[0024] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the scope of protection of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A pile driving and drilling anti-collapse device, characterized in that, Comprising: An expansion device (1); A protection device (2), the bottom end of the protection device (2) being fixedly connected to the top end of the expansion device (1); A driving device (3), the outer wall of the driving device (3) being slidably connected to the outer wall of the expansion device (1); The expansion device (1) includes a telescopic ring (11), the inner wall of the telescopic ring (11) being fixedly connected with a baffle (12), the baffle (12) being annularly arrayed around the central axis of the telescopic ring (11), the outer wall of the telescopic ring (11) being symmetrically and fixedly connected with clamping rings (13), and the outer wall of the telescopic ring (11) being symmetrically and fixedly connected with clamping posts (14).

2. The anti-collapse device for pile driving and drilling according to claim 1, characterized in that: The driving device (3) includes a fixed block (31), the outer wall of the fixed block (31) being fixedly connected with a screw rod (35), the inner wall of the fixed block (31) being slidably connected with a sliding block (36), and the top end of the sliding block (36) being fixedly connected with a connecting block (32).

3. The anti-collapse device for pile driving and drilling according to claim 2, characterized in that: A fixing hole (33) is formed in the wall of the connecting block (32), a limiting post (34) is fixedly connected to the outer wall of the connecting block (32), and the outer wall of the screw rod (35) is in threaded connection with the inner wall of the sliding block (36).

4. The anti-collapse device for pile driving and drilling according to claim 3, wherein: The inner wall of the fixing hole (33) is slidably connected with the outer wall of the clamping post (14), and the outer wall of the limiting post (34) is slidably connected with the inner wall of the clamping ring (13).

5. A pile driving and drilling anti-collapse device according to claim 1, characterized in that: The protection device (2) includes a telescopic frame (21), the inner wall of the telescopic frame (21) being fixedly connected with a protection net (22), the top end of the telescopic frame (21) being fixedly connected with a guide wheel (23), and the bottom end of the telescopic frame (21) being symmetrically and rotatably connected with limiting blocks (24).

6. The anti-collapse device for pile driving and drilling according to claim 5, characterized in that: A torsion spring (25) is fixedly connected to the outer wall of the limiting block (24), one end of the torsion spring (25) far from the limiting block (24) being fixedly connected to the outer wall of the telescopic frame (21), and the bottom end of the limiting block (24) being fixedly connected to the outer wall of the telescopic ring (11).

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