Drilling positioning device for bored pile construction
By designing and installing components such as rings, bosses, and threaded rods, the problem of the verticality of the centering rod under the influence of terrain was solved, achieving high-precision positioning of the drilling position and improving construction quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG JINQU GEOTECHNICAL ENG CO LTD
- Filing Date
- 2025-09-04
- Publication Date
- 2026-07-03
Smart Images
Figure CN224452712U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building technology, and in particular to a drilling positioning device for bored pile construction. Background Technology
[0002] Drilled cast-in-place piles are a type of concrete pile cast on-site. The basic principle is as follows: first, a cylindrical hole of the designed diameter and depth is drilled in the foundation using a drilling rig; then, a steel reinforcement cage is lowered into the hole; and finally, concrete is poured into the hole through a tremie pipe to form a solid pile.
[0003] During the construction of bored piles, a total station is needed to observe the centering rod to locate the drilling position of the pile. Existing drilling positioning devices are often affected by the flatness of the construction site, which makes it impossible for the centering rod to maintain a vertical position effectively. This greatly affects the accuracy of the drilling positioning and thus affects the construction quality. Utility Model Content
[0004] This utility model discloses a drilling positioning device for bored pile construction, which aims to solve the technical problem that existing drilling positioning devices cannot guarantee the verticality of the centering rod due to the influence of terrain.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A drilling positioning device for bored pile construction includes an installation ring. Three circumferentially equidistant bosses are fixedly connected to the outside of the installation ring. Each boss is rotatably connected to a threaded rod via an external thread, and a support plate is positioned below each threaded rod. A spherical seat is positioned between each threaded rod and support plate. Three circumferentially equidistant anchors are positioned on each support plate. A horizontal adjustment module and a centering rod are provided on the installation ring, with a lime marking module positioned below the centering rod. The horizontal adjustment module includes three circumferentially equidistant rotating sleeves. Each rotating sleeve has multiple circumferentially equidistant grooves, and a locking sleeve is positioned on the outside of each rotating sleeve. Each locking sleeve has four circumferentially equidistant slots, each slot containing a ball bearing. The ball bearing engages with a slot on the same side. The bottom of each rotating sleeve is movably connected to the upper side of the boss.
[0007] In a preferred embodiment, the bottoms of all three locking sleeves are fixedly connected to the upper side of the boss on the same side. A sliding ring is slidably connected to the outside of each locking sleeve, and the inner wall of each sliding ring has a conical groove, the inner wall of which contacts the outside of the ball bearing on the same side. A fixing ring is provided on the outside of each of the three locking sleeves, located below the sliding ring. Multiple circumferentially distributed elastic springs are fixedly connected to the upper side of each fixing ring, the outer sides of which contact the bottom of the sliding ring on the same side, and the bottom of each fixing ring is fixedly connected to the upper side of the boss. A positioning sleeve is slidably connected to the outside of each of the three sliding rings, the bottom of which is fixedly connected to the upper side of the boss on the same side. The fixed connection and positioning sleeves each have two symmetrical grooves on their outer sides, and pressure plates are slidably connected in each groove. The pressure plates are fixedly connected to the side opposite to the sliding ring. Adjusting rings are fixedly connected to the outer sides of the three rotating sleeves, and the adjusting rings are all located above the sliding ring. Three circumferentially distributed stabilizing platforms are fixedly connected to the upper side of the mounting ring. The height of the three stabilizing platforms increases sequentially. A rotating frame is movably connected to the upper side of each of the three stabilizing platforms. Each rotating frame has a sliding groove, and the same socket cylinder is slidably connected in each of the three sliding grooves. The inner wall of the socket cylinder is inserted into the outer side of the centering rod, and two symmetrical clamping plates are fixedly connected to the outer side of the socket cylinder. The outer side of the rotating frame is slidably connected to the outer side of the clamping plates.
[0008] In a preferred embodiment, the lime marking module includes a lime storage box, the upper side of which is connected to the bottom of the socket cylinder. A cross groove is formed at the bottom of the lime storage box, and a cross sealing plate is slidably connected in the cross groove. A guide rod is fixedly connected to the upper side of the cross sealing plate, and a contact plate is fixedly connected to the upper side of the guide rod. The upper side of the contact plate contacts the bottom of the centering rod. A fixed platform is slidably connected to the outside of the guide rod, and the outside of the fixed platform is fixedly connected to the inner wall of the socket cylinder. A spring is provided on the outside of the guide rod, and the two ends of the spring are fixedly connected to the upper side of the fixed platform and the bottom of the contact plate, respectively.
[0009] As can be seen from the above, the drilling positioning device for bored pile construction provided by this utility model can overcome the influence of terrain and level itself to maintain a horizontal state when the centering rod is positioned by the total station for bored pile drilling. This ensures that the centering rod in the device remains vertical, which is convenient for observation by the total station. This effectively improves the positioning accuracy of the borehole and ensures the construction accuracy and quality of the bored pile. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the overall structure of the drilling positioning device for bored pile construction proposed in this utility model.
[0011] Figure 2 This is a bottom view of the drilling positioning device for bored pile construction proposed in this utility model.
[0012] Figure 3 This is a schematic diagram of the sliding ring structure of the drilling positioning device for bored pile construction proposed in this utility model.
[0013] Figure 4 This is a schematic diagram of the socket structure of the drilling positioning device for bored pile construction proposed in this utility model.
[0014] Figure 5 This is a schematic diagram of the lime marking module structure of the drilling positioning device for bored pile construction proposed in this utility model.
[0015] In the attached diagram: 1. Mounting ring; 2. Boss; 3. Threaded rod; 4. Support plate; 5. Anchor nail; 6. Centering rod; 7. Horizontal adjustment module; 701. Rotating sleeve; 702. Groove; 703. Locking sleeve; 704. Ball bearing; 705. Sliding ring; 706. Tapered groove; 707. Elastic spring; 708. Positioning sleeve; 709. Groove; 710. Pressure plate; 711. Adjusting ring; 712. Stabilizing platform; 713. Rotating frame; 714. Socket sleeve; 715. Clamping plate; 8. Lime marking module; 801. Lime storage box; 802. Cross sealing plate; 803. Guide rod; 804. Fixing platform; 805. Contact plate; 806. Spring; 9. Spherical seat. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0017] The drilling positioning device disclosed in this utility model for bored pile construction is mainly applied to scenarios where existing drilling positioning devices cannot guarantee the verticality of the centering rod due to terrain influences.
[0018] Reference Figures 1-5A drilling positioning device for bored pile construction includes a mounting ring 1. Three circumferentially equidistant bosses 2 are bolted to the outside of the mounting ring 1. Each boss 2 is rotatably connected to a threaded rod 3 via an external thread, and a support plate 4 is provided below each threaded rod 3. A spherical seat 9 is provided between each threaded rod 3 and the support plate 4. Three circumferentially equidistant anchors 5 are provided on each support plate 4. A horizontal adjustment module 7 is provided on the mounting ring 1, and a centering rod 6 is provided on the mounting ring 1. Below the centering rod 6 is a... The system includes a lime marking module 8 and a horizontal adjustment module 7 comprising three circumferentially equidistant rotating sleeves 701. Each rotating sleeve 701 has multiple circumferentially equidistant grooves 702, and each rotating sleeve 701 has a locking sleeve 703 on its exterior. Each locking sleeve 703 has four circumferentially equidistant slots, and each slot has a ball bearing 704. The ball bearing 704 engages with the groove 702 on the same side. The bottom of each rotating sleeve 701 is rotatably connected to the upper side of the boss 2 via a bearing.
[0019] Specifically, the device utilizes the horizontal adjustment module 7 to overcome the influence of terrain and level itself when the total station positions the centering rod 6 for the drilling of the cast-in-place pile. This ensures that the centering rod 6 remains vertical, facilitating observation by the total station and effectively improving the positioning accuracy of the borehole, thus guaranteeing the construction precision and quality of the cast-in-place pile.
[0020] Reference Figure 3 and Figure 4In a preferred embodiment, the bottoms of the three locking sleeves 703 are all bolted to the upper side of the boss 2 on the same side. A sliding ring 705 is slidably connected to the outside of each locking sleeve 703. The inner wall of each sliding ring 705 has a tapered groove 706, and the inner wall of each tapered groove 706 contacts the outside of the ball bearing 704 on the same side. A fixing ring is provided on the outside of each of the three locking sleeves 703, located below the sliding ring 705. Multiple circumferentially distributed elastic springs 707 are bolted to the upper side of each fixing ring. The outer sides of each elastic spring 707 contact the bottom of the sliding ring 705 on the same side, and the bottom of each fixing ring is bolted to the upper side of the boss 2. A positioning sleeve 708 is slidably connected to the outside of each of the three sliding rings 705. The bottom of each positioning sleeve 708 is bolted to the upper side of the boss 2 on the same side. Each of the three rotating sleeves 701 has two symmetrical slots 709 on its exterior. Each slot 709 has a pressure plate 710 slidably connected to it. The pressure plate 710 is bolted to the side opposite to the sliding ring 705. Each of the three rotating sleeves 701 has an adjusting ring 711 bolted to its exterior. The adjusting ring 711 is located above the sliding ring 705. The upper side of the mounting ring 1 has three circumferentially distributed stabilizing platforms 712 bolted to it. The height of the three stabilizing platforms 712 increases sequentially. Each of the three stabilizing platforms 712 has a rotating frame 713 rotatably connected to its upper side via a bearing. Each rotating frame 713 has a sliding groove. The same socket cylinder 714 is slidably connected to each of the three sliding grooves. The inner wall of the socket cylinder 714 is inserted into the outside of the centering rod 6. The outside of the socket cylinder 714 is bolted to two symmetrical clamping plates 715. The outside of the rotating frame 713 is slidably connected to the outside of the clamping plates 715.
[0021] Specifically, the mounting ring 1 is placed on the ground, and the anchor pin 5 is anchored into the ground. Overcoming the elastic force of the elastic spring 707, the sliding ring 705 is pressed down, causing the inner wall of the wide side of the conical groove 706 to move to the same plane as the ball 704. This releases the pressure of the conical groove 706 on the ball 704, and the ball 704 is no longer locked in the groove 702. The adjusting ring 711 is rotated, causing the rotating sleeve 701 to rotate, which in turn rotates the threaded rod 3, causing the threaded rod 3 to rise or fall on the boss 2. This process is repeated for the three threads. After all rods 3 are adjusted, the installation ring 1 is checked to be horizontal using a spirit level. Then, the sliding ring 705 is released, and the sliding ring 705 springs back, pressing the ball 704 back into the groove 702 to complete the locking, so that the threaded rod 3 no longer rotates. The centering rod 6 is observed using a total station. According to the instructions, the socket cylinder 714 is pushed to slide on the three rotating frames 713. The three rotating frames 713 support the centering rod 6 on the socket cylinder 714 to move within the installation ring 1 until it moves to the drilling position.
[0022] In specific application scenarios, the horizontal adjustment module 7 is mainly used for the horizontal adjustment stage in the horizontal adjustment process. That is, the horizontal adjustment module 7 uses the socket cylinder 714, the clamping plate 715 and the rotating frame 713 to enable the centering rod 6 to move in all directions on the horizontal plane within the mounting ring 1. While keeping the centering rod 6 vertical, it can quickly and conveniently position the centering rod 6 to the drilling position. The groove 702, the ball 704 and the tapered groove 706 can lock the position of the mounting ring 1 after the device has completed the horizontal adjustment, so as to avoid the threaded rod 3 from rotating due to vibration at the construction site, which would affect the horizontal state of the mounting ring 1 and improve the stability of the device.
[0023] Reference Figure 5 In a preferred embodiment, the lime marking module 8 includes a lime storage box 801. The upper side of the lime storage box 801 is connected to the bottom of the socket cylinder 714. A cross groove is provided at the bottom of the lime storage box 801. A cross sealing plate 802 is slidably connected in the cross groove. A guide rod 803 is bolted to the upper side of the cross sealing plate 802. A contact plate 805 is bolted to the upper side of the guide rod 803. The upper side of the contact plate 805 contacts the bottom of the centering rod 6. A fixed platform 804 is slidably connected to the outside of the guide rod 803. The outside of the fixed platform 804 is bolted to the inner wall of the socket cylinder 714. A spring 806 is provided on the outside of the guide rod 803. The two ends of the spring 806 are bolted to the upper side of the fixed platform 804 and the bottom of the contact plate 805, respectively.
[0024] Specifically, after the centering rod 6 is positioned, it is grasped and lifted to release the pressure of the centering rod 6 on the contact plate 805. Under the elastic force of the spring 806, the guide rod 803 moves the cross sealing plate 802 upward, exposing the cross groove. The lime in the lime storage box 801 collapses and falls from the cross groove, leaving a cross lime mark on the construction ground. The centering rod 6 is then released and falls back into the socket cylinder 714, pressing the contact plate 805 and the spring 806 to re-close the cross groove with the cross sealing plate 802.
[0025] In specific application scenarios, the lime marking module 8 is mainly suitable for the lime marking stage in the lime marking process. That is, the lime marking module 8 uses the cross sealing plate 802, contact plate 805 and spring 806 to enable the device to quickly mark the positioning point by spreading lime after the drilling position is completed. This makes the marking more conspicuous for the subsequent drilling team. The marking is done using lime in the lime storage box 801, which increases the retention time of the positioning point and improves the marking efficiency. This reduces the workload of workers and improves the continuity of construction.
[0026] Working principle: The mounting ring 1 is placed on the ground, and the anchor pin 5 is anchored into the ground. Overcoming the elastic force of the spring plate 707, the sliding ring 705 is pressed down, causing the inner wall of the wide side of the conical groove 706 to move to the same plane as the ball bearing 704. This releases the pressure of the conical groove 706 on the ball bearing 704, and the ball bearing 704 is no longer locked in the groove 702. The adjusting ring 711 is rotated, causing the rotating sleeve 701 to rotate, which in turn rotates the threaded rod 3, causing it to rise or fall on the boss 2. After adjusting all three threaded rods 3, the mounting ring 1 is checked to be level using a spirit level. The sliding ring 705 is then released, and it springs back, pressing the ball bearing 704 back into the groove 702, completing the locking process and preventing the threaded rod 3 from rotating. This is then achieved using a total station. The centering rod 6 is observed. According to the instructions, the socket cylinder 714 is pushed to slide on the three rotating frames 713. The three rotating frames 713 lift the centering rod 6 on the socket cylinder 714 by rotating, moving it within the mounting ring 1 until it moves to the drilling position. After the centering rod 6 is positioned, it is grasped and lifted to release the pressure of the centering rod 6 on the contact plate 805. Under the elastic force of the spring 806, the guide rod 803 drives the cross sealing plate 802 to move upward, exposing the cross groove. The lime in the lime storage box 801 collapses and falls from the cross groove, leaving a cross lime mark on the construction ground. The centering rod 6 is released and falls back into the socket cylinder 714, pressing the contact plate 805 and the spring 806, causing the cross sealing plate 802 to close the cross groove again.
[0027] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.
Claims
1. A drilling positioning device for bored pile construction, comprising a mounting ring (1), characterized in that, The mounting ring (1) is externally fixedly connected to three circumferentially equidistant bosses (2). Each boss (2) is rotatably connected to a threaded rod (3) via an external thread. A support plate (4) is provided below each threaded rod (3). A spherical seat (9) is provided between the threaded rod (3) and the support plate (4). Three circumferentially equidistant anchors (5) are provided on each support plate (4). The mounting ring (1) is equipped with a horizontal adjustment module (7) and a centering rod (6). A lime marking module is provided below the centering rod (6). (8) The horizontal adjustment module (7) includes three circumferentially distributed rotating sleeves (701). Each rotating sleeve (701) has multiple circumferentially distributed grooves (702). Each rotating sleeve (701) has a locking sleeve (703) on its exterior. Each locking sleeve (703) has four circumferentially distributed slots. Each slot has a ball bearing (704). The exterior of each ball bearing (704) is engaged with the groove (702) on the same side. The bottom of each rotating sleeve (701) is movably connected to the upper side of the boss (2).
2. The drill positioning device for cast-in-place pile construction according to claim 1, wherein The bottom of each of the three locking sleeves (703) is fixedly connected to the upper side of the boss (2) on the same side. Each locking sleeve (703) is slidably connected to a sliding ring (705). The inner wall of each sliding ring (705) is provided with a tapered groove (706), and the inner wall of the tapered groove (706) is in contact with the outer side of the ball (704) on the same side.
3. The drill positioning device for cast-in-place pile construction according to claim 2, wherein Each of the three locking sleeves (703) is provided with a fixing ring on its exterior. The fixing ring is located below the sliding ring (705). Multiple circumferentially distributed elastic springs (707) are fixedly connected to the upper side of the fixing ring. The exterior of the elastic springs (707) is in contact with the bottom of the sliding ring (705) on the same side. The bottom of the fixing ring is fixedly connected to the upper side of the boss (2).
4. The drill positioning device for cast-in-place pile construction according to claim 3, wherein The three sliding rings (705) are all slidably connected to the outside of a positioning sleeve (708). The bottom of the positioning sleeve (708) is fixedly connected to the upper side of the boss (2) on the same side. The positioning sleeve (708) has two symmetrical grooves (709) on its outside. The grooves (709) are all slidably connected to a pressure plate (710). The pressure plate (710) is fixedly connected to the side opposite to the sliding ring (705). The three rotating sleeves (701) are all fixedly connected to the outside of an adjusting ring (711). The adjusting rings (711) are all located above the sliding rings (705).
5. The drill positioning device for cast-in-place pile construction according to claim 4, wherein The upper side of the mounting ring (1) is fixedly connected to three circumferentially distributed stabilizing platforms (712), the height of the three stabilizing platforms (712) increases sequentially, and the upper side of each of the three stabilizing platforms (712) is movably connected to a rotating frame (713). Each rotating frame (713) has a sliding groove, and the same socket cylinder (714) is slidably connected in the three sliding grooves. The inner wall of the socket cylinder (714) is inserted into the outside of the centering rod (6), and the outside of the socket cylinder (714) is fixedly connected to two symmetrical clamps (715). The outside of the rotating frame (713) is slidably connected to the outside of the clamps (715).
6. The drill positioning device for cast-in-place pile construction according to claim 1, wherein The lime marking module (8) includes a lime storage box (801). The upper side of the lime storage box (801) is connected to the bottom of the socket cylinder (714). A cross groove is opened at the bottom of the lime storage box (801). A cross sealing plate (802) is slidably connected in the cross groove. A guide rod (803) is fixedly connected to the upper side of the cross sealing plate (802). A contact plate (805) is fixedly connected to the upper side of the guide rod (803). The upper side of the contact plate (805) is in contact with the bottom of the centering rod (6).
7. The drill positioning device for cast-in-place pile construction according to claim 6, wherein The guide rod (803) is slidably connected to a fixed platform (804). The outside of the fixed platform (804) is fixedly connected to the inner wall of the socket cylinder (714). A spring (806) is provided on the outside of the guide rod (803). The two ends of the spring (806) are fixedly connected to the upper side of the fixed platform (804) and the bottom of the contact plate (805), respectively.