Multifunctional punching cast-in-place pile construction protection device

By designing a multifunctional protective device for bored pile construction, the problem of insufficient horizontal protection in bored pile construction was solved, construction safety and efficiency were improved, the operation of the guide pipe was simplified, and the safety of the workers was ensured.

CN224134275UActive Publication Date: 2026-04-17HUNAN CONSTRUCTION ENGINEERING GROUP CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN CONSTRUCTION ENGINEERING GROUP CO LTD
Filing Date
2025-07-11
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

In existing bored pile construction, there is insufficient horizontal protection during the drilling process, and the construction environment is unsafe, which affects construction efficiency and the safety of workers.

Method used

A multifunctional protective device for bored pile construction is designed, consisting of two semi-circular frames, including transverse and longitudinal members, patterned steel plates and clamping plates, which are connected by bolts to provide horizontal protection and allow for the disassembly of guide pipes, suitable for different pile hole diameters.

Benefits of technology

It achieves effective horizontal protection during the hole-forming process, improves construction safety and efficiency, reduces safety hazards for workers, and simplifies the installation and disassembly of the guide tube.

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Abstract

The utility model discloses a multifunctional punching filling pile construction protection device, which relates to the technical field of punching filling pile construction, and comprises two semicircular frames, a transversely arranged first rod piece and a longitudinally arranged second rod piece are respectively welded in each semicircular frame, the upper end of each semicircular frame is welded with a checkered steel plate, and the lower end of each checkered steel plate is welded with a steel wire rope. A clamping plate is arranged in the middle of the checkered steel plate, the clamping plate is hinged to the checkered steel plate, and a semicircular notch is formed in the middle of the clamping plate; the two semicircular frames are assembled and connected through bolts. The clamping plate is opened in the hole forming process of the percussion drill, and normal punching is not affected while pile hole protection is guaranteed; after the hole is formed, the guide pipe is mounted and dismounted through opening and closing of the clamping plate, full coverage of horizontal protection of the pile hole is ensured, safety of personnel passing and operation is ensured, and assembling, mounting, dismounting, storage and transferring are convenient and fast.
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Description

Technical Field

[0001] This utility model relates to the field of bored pile construction technology, and in particular to a multifunctional protective device for bored pile construction. Background Technology

[0002] Drilled piles are commonly constructed using the mud wall protection method. During the drilling process, the drill bit is pulled back and forth inside the pile hole by a steel wire rope. Therefore, horizontal protection during the pile hole formation process is often neglected, posing a safety hazard. After drilling, a lengthy cleaning process and frequent mud performance testing are required. When pouring concrete for the pile foundation, the tremie method is commonly used. When lowering the tremie pipe into the pile hole, a common practice is to place a long, narrow valve at the hole opening and clamp the tremie pipe onto the valve for extension or disassembly. Workers need to frequently move around the pile hole during cleaning, testing, and pouring processes. However, the area around the hole opening during drilled pile construction is often unhardened soil, which becomes muddy and slippery after rain, making movement and operation inconvenient for construction personnel and posing a safety hazard. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a multifunctional protective device for the construction of bored piles, which can provide horizontal protection during and after the drilling process, improve the working environment, facilitate disassembly and storage, reduce space occupation, and make it easy to carry and use.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a multifunctional perforated pile construction protection device, including two semi-circular frames, each semi-circular frame having a first member arranged horizontally and a second member arranged vertically welded inside, each semi-circular frame having a patterned steel plate welded to its upper end, the patterned steel plate having a clamping plate in the middle, the clamping plate being hinged to the patterned steel plate, the clamping plate having a semi-circular notch in the middle; the two semi-circular frames are assembled and connected by bolts.

[0005] Furthermore, the first member has two sets, arranged horizontally in parallel; each set has two members, which are horizontally welded to the second member arranged longitudinally. Of course, other structures can also be designed according to actual conditions.

[0006] Furthermore, the lower end of the patterned steel plate is welded to the first rod and the second rod.

[0007] Furthermore, the second rod is provided with several vertical insertion holes, which are connected to the corresponding positions of the patterned steel plate.

[0008] Furthermore, four of the insertion holes on the second rod correspond to the inner wall of the steel casing, and pins are inserted into the insertion holes to prevent the device from moving.

[0009] Furthermore, the pin has a T-shaped structure and can be fixedly installed in the socket.

[0010] Furthermore, the card plate consists of two symmetrical pieces, and when the two card plates are closed, the semi-circular notch in the middle forms a circular through hole; the inner diameter of the through hole is equal to the outer diameter of the conduit.

[0011] Furthermore, the card plate is equipped with a handle.

[0012] Furthermore, the card plate and the patterned steel plate are hinged together by a connecting ring.

[0013] Furthermore, each of the two semi-circular frames has a nut at both ends, with the nuts on the same end arranged opposite each other and connected by bolts. Of course, other similar structures can also be designed.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. During the drilling process of bored piles, the pile hole is effectively protected horizontally without affecting construction;

[0016] 2. After drilling, close the clamping plate and fully cover the horizontal protection of the pile hole to ensure the safety of personnel engaged in hole cleaning and mud testing.

[0017] 3. When pouring concrete, the guide pipe can be installed and removed by opening and closing the clamping plate, eliminating the need for additional facilities to clamp the guide pipe, ensuring the safety of workers and improving work efficiency.

[0018] 4. The protective device is highly adaptable. It can be fixed with appropriate insertion pins according to the diameter of the pile hole to prevent the device from moving.

[0019] 5. The protective device consists of two semi-circular frames, which are easy to install and disassemble, and the assembly is not affected by the drill bit traction wire rope. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the frame structure of an embodiment of the present utility model;

[0021] Figure 2 This is an overall schematic diagram of an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the first usage state of this utility model embodiment;

[0023] Figure 4 This is a schematic diagram of the second usage state of this utility model embodiment;

[0024] Figure 5 This is a longitudinal section view of an embodiment of this utility model in use;

[0025] Explanation of the reference numerals in the figure:

[0026] 1. Frame, 2. First rod, 3. Second rod, 31. Insertion hole, 4. Pin, 5. Patterned steel plate, 6. Clamping plate, 61. Connecting ring, 62. Handle, 7. Nut, 8. Bolt, 9. Through hole, 10. Steel casing. Detailed Implementation

[0027] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] Reference Figures 1 to 5 This embodiment provides a multifunctional protective device for bored pile construction, including two semi-circular frames 1. Each semi-circular frame 1 has a first member 2 arranged laterally and a second member 3 arranged longitudinally welded inside. A patterned steel plate 5 is welded to the upper end of each semi-circular frame 1. A clamping plate 6 is provided in the middle of the patterned steel plate 5. The clamping plate 6 is hinged to the patterned steel plate 5. A semi-circular notch is opened in the middle of the clamping plate 6. The two semi-circular frames 1 are assembled and connected by bolts 8.

[0029] In this embodiment, there are two sets of the first rod 2, arranged horizontally in parallel; each set has two rods, which are horizontally welded to the longitudinally arranged second rod 3.

[0030] In this embodiment, the lower end of the patterned steel plate 5 is welded to the first rod 2 and the second rod 3, making it more stable and reliable in use.

[0031] In this embodiment, the second rod 3 is provided with several vertical insertion holes 31, and the insertion holes 31 are connected to the corresponding positions of the patterned steel plate 5.

[0032] In this embodiment, four of the insertion holes 31 on the second rod 3 correspond to the inner wall of the steel casing 10. A pin 4 is inserted into the insertion hole 31 to prevent the device from moving. The pin 4 has a T-shaped structure and can be fixedly installed in the insertion hole 31.

[0033] In this embodiment, there are two clamping plates 6 arranged symmetrically. When the two clamping plates 6 are closed, the semi-circular notch in the middle forms a circular through hole 9; the inner diameter of the through hole 9 is equal to the outer diameter of the guide tube. The clamping plate 6 is a steel plate, and reinforcing steel strips can be provided at the semi-circular notch.

[0034] In this embodiment, the card plate 6 is provided with a handle 62.

[0035] In this embodiment, the card plate 6 and the patterned steel plate 5 are hinged together by a connecting ring 61.

[0036] In this embodiment, the two semi-circular frames 1 are provided with nuts 7 at both ends, and the nuts 7 at the same end are arranged opposite each other and assembled and connected by bolts 8.

[0037] This embodiment also provides a construction method for the above-mentioned multifunctional perforated pile construction protection device, which specifically includes the following steps:

[0038] Step 1: Install the device by assembling the two semi-circular frames 1 using bolts 8;

[0039] Step 2: Based on the diameter of the steel casing 10, locate the insertion hole 31 corresponding to the second rod 3 inside the steel casing 10, and insert the pin 4 into the insertion hole 31 to prevent the device from moving.

[0040] Step 3: Open the two clamping plates 6 to facilitate the operation of the impact drill;

[0041] Step 4: After the pile hole reaches the required depth, unscrew bolt 8 to disassemble the device and remove the drill bit;

[0042] Step 5: Assemble the device using bolt 8;

[0043] Step 6: When installing or removing the conduit, open or close the clamp 6 as needed.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multifunctional protective device for bored pile construction, characterized in that: It includes two semi-circular frames. Each semi-circular frame has a first member arranged horizontally and a second member arranged vertically welded inside. A patterned steel plate is welded to the upper end of each semi-circular frame. A clamping plate is provided in the middle of the patterned steel plate. The clamping plate is hinged to the patterned steel plate. A semi-circular notch is opened in the middle of the clamping plate. The two semi-circular frames are assembled and connected by bolts.

2. The multifunctional punching pile construction protection device according to claim 1, characterized in that: The first member has two sets, arranged horizontally in parallel; each set has two members, which are horizontally welded to the second member arranged longitudinally.

3. The multifunctional punched pile construction protection device according to claim 1 or 2, characterized in that: The lower end of the patterned steel plate is welded to the first member and the second member.

4. The multifunctional punched filling pile construction protection device according to claim 1 or 2, characterized in that: The second rod has several vertical insertion holes, which are connected to the corresponding positions of the patterned steel plate.

5. The multifunctional punched pile construction protection device according to claim 4, characterized in that: Four of the insertion holes on the second rod correspond to the inner wall of the steel casing. A pin is inserted into the insertion hole to prevent the device from moving.

6. The multifunctional punched pile construction protection device according to claim 5, characterized in that: The pin has a T-shaped structure and can be fixedly installed in the socket.

7. A multifunctional protective device for bored pile construction according to claim 1 or 2, characterized in that: The card plate consists of two symmetrical pieces. When the two card plates are closed, the semi-circular notch in the middle forms a circular through hole. The inner diameter of the through hole is equal to the outer diameter of the guide tube.

8. The multifunctional punched pile construction protection device according to claim 1 or 2, characterized in that: The card plate is equipped with a handle.

9. The multifunctional punched pile construction protection device according to claim 1 or 2, characterized in that: The card plate and the patterned steel plate are hinged together by a connecting ring.

10. The multifunctional punched pile construction protection device according to claim 1 or 2, characterized in that: The two semi-circular frames are provided with nuts at both ends, and the nuts at the same end are arranged opposite each other and connected by bolts.