Square pile single-pile body hoisting device
By designing a single-pile lifting device for square piles that includes components such as a counterweight base, an adjustment seat, and a servo motor, the problem of heavy piles breaking during lifting was solved, achieving stable clamping and flexible adjustment, thus improving the safety and efficiency of lifting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN KEDIMEI TECH CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-06-19
AI Technical Summary
Existing lifting equipment is unable to stably suspend heavy precast piles, making the piles prone to breakage during the lifting process.
A single-pile lifting device for square piles was designed, which uses components such as a counterweight base, an adjusting seat, a servo motor, a sleeve rod, an extension rod, an adjusting ring, an electric winch, and a clamping plate. Through the cooperation of gears and gear blocks driven by the servo motor, the device can achieve stable clamping and adjustment of the pile body, thereby improving the lifting stability.
This method achieves stable support for precast square piles, avoids breakage during lifting, and allows for flexible adjustment of the pile's orientation and height, thus improving the safety and efficiency of lifting.
Smart Images

Figure CN224377474U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pile lifting technology, specifically a single square pile lifting device. Background Technology
[0002] With the rapid growth of national infrastructure construction, precast piles, as a technologically mature pile type, are widely used in various engineering construction fields due to their advantages such as easy quality assurance, ability to withstand large loads, and durability. Precast piles can be manufactured in factories or on-site, depending on usage requirements and construction plans. The production of a precast pile involves processes such as material feeding, pile driving, and pile removal to complete the process.
[0003] In existing technologies, when driving piles and then removing them, the piles need to be lifted and transferred. Because the piles are heavy, traditional lifting devices can only suspend a portion of the pile, making it difficult to lift the entire pile, which can easily lead to breakage during lifting. To address these issues, an innovative design has been developed based on the existing lifting device. Utility Model Content
[0004] The purpose of this utility model is to provide a single-pile lifting device for square piles to solve the technical problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a single-pile lifting device for square piles, comprising a counterweight base, an adjusting seat above the counterweight base, a thrust bearing installed between the adjusting seat and the counterweight base, a first servo motor fixed to the surface of the counterweight base, the first servo motor being drivenly connected to the adjusting seat, a sleeve rod fixed to the surface of the adjusting seat, an extension rod inside the sleeve rod, an adjusting ring connected to the outer side of the extension rod, the adjusting ring being installed on the sleeve rod, a second servo motor fixed to the surface of the sleeve rod, the second servo motor being drivenly connected to the adjusting ring, an electric winch also fixed to the surface of the sleeve rod, a crossbeam fixed to the end of the extension rod away from the sleeve rod, a steel cable mounted on the electric winch, the steel cable passing around the crossbeam and connected to a lifting beam, and a clamping plate mounted on the lifting beam.
[0006] Preferably, the output end of the first servo motor is fixed with a first drive gear, the surface of the adjustment seat is provided with a first tooth block, the first drive gear is meshed with the adjustment seat through the first tooth block, and the first servo motor can drive the adjustment seat to rotate.
[0007] Preferably, the surface of the adjusting ring is provided with a second tooth block, and the outer side of the adjusting ring is provided with a second drive gear. The second drive gear is meshed with the adjusting ring through the second tooth block. The output end of the second servo motor is fixedly connected to the second drive gear, and the second servo motor can drive the adjusting ring to rotate.
[0008] Preferably, guide rods are fixed on both sides of the lower end of the extension rod, and guide grooves matching the guide rods are provided on the inner wall of the sleeve rod. The end of the guide rod away from the extension rod is located in the corresponding guide groove, and the guide rod is slidably connected to the sleeve rod through the guide groove.
[0009] Preferably, the extension rod surface is provided with threads, and the adjusting ring and the extension rod are connected by a through thread.
[0010] Preferably, a docking ring is fixed on the surface of the adjusting ring, and a docking groove matching the docking ring is opened at one end of the sleeve rod facing the adjusting ring, with the docking ring located in the docking groove.
[0011] Preferably, fixed pulleys are fixedly installed at both ends of the crossbeam, and the steel cable is wrapped around the surface of the two fixed pulleys.
[0012] Preferably, the lifting beam has an adjustment groove on its surface, the adjustment rod is located in the adjustment groove, the adjustment rod is rotatably connected to the lifting beam, the adjustment rod has two threads facing opposite directions on its surface, the adjustment rod and the clamping rod are connected by a through thread, and the clamping plate is fixed to the end of the clamping rod away from the adjustment rod.
[0013] Preferably, the clamping plates are provided in three sets, with two clamping plates in each set, and rubber anti-slip pads are provided on the surfaces of the clamping plates facing each other in each set.
[0014] Compared with the prior art, the beneficial effects of this utility model are: the single pile lifting device for square piles,
[0015] Three sets of clamping plates are installed below the lifting beam. Twisting the adjusting rod can push the clamping rod through the thread to bring each set of clamping plates closer together, thus facilitating stable clamping according to the diameter of the precast square pile. The three sets of clamping plates can clamp the front, middle and rear sections of the square pile respectively, improving lifting stability and preventing the square pile from breaking during lifting. At the same time, the second servo motor can drive the adjusting ring to rotate through the second drive gear and the second tooth block, which can facilitate the adjusting ring to push the extension rod through the thread to adjust the height within the sleeve rod. This is beneficial for the steel cable to lift the square pile through the lifting beam and clamping plates. Meanwhile, the first servo motor can drive the adjusting seat to rotate on the counterweight base through the first drive gear and the first tooth block. This allows the adjusting seat to adjust the orientation of the lifted square pile through the sleeve rod, extension rod and crossbeam, thus facilitating its transfer. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall front view of a single-pile lifting device for square piles according to an embodiment of the present invention.
[0017] Figure 2 This is a schematic cross-sectional view of the connection between the sleeve rod and the extension rod according to an embodiment of the present invention;
[0018] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the diagram;
[0019] Figure 4 This is a side-sectional view of the clamping rod installation structure according to an embodiment of the present invention;
[0020] Figure 5 This is a cross-sectional view of the connection between the adjusting rod and the clamping rod according to an embodiment of the present invention.
[0021] In the diagram: 1. Counterweight base; 2. Adjusting seat; 3. Thrust bearing; 4. First servo motor; 5. First drive gear; 6. First tooth block; 7. Sleeve rod; 8. Extension rod; 9. Guide rod; 10. Guide groove; 11. Adjusting ring; 12. Connecting ring; 13. Connecting groove; 14. Second tooth block; 15. Second drive gear; 16. Second servo motor; 17. Electric winch; 18. Crossbeam; 19. Fixed pulley; 20. Steel cable; 21. Lifting beam; 22. Adjusting groove; 23. Adjusting rod; 24. Clamping rod; 25. Clamping plate; 26. Rubber anti-slip pad. Detailed Implementation
[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figures 1-5 This utility model provides a single-pile lifting device for square piles, including a counterweight base 1, an adjusting seat 2 above the counterweight base 1, a thrust bearing 3 installed between the adjusting seat 2 and the counterweight base 1, a first servo motor 4 fixed on the surface of the counterweight base 1, a first drive gear 5 fixed at the output end of the first servo motor 4, a first tooth block 6 provided on the surface of the adjusting seat 2, the first drive gear 5 meshing with the adjusting seat 2 through the first tooth block 6, a sleeve rod 7 fixed on the surface of the adjusting seat 2, an extension rod 8 provided on the inner side of the sleeve rod 7, an adjusting ring 11 connected to the outer side of the extension rod 8, the adjusting ring 11 being installed on the sleeve rod 7, and a second tooth block 14 provided on the surface of the adjusting ring 11 for adjustment. A second drive gear 15 is provided on the outer side of ring 11. The second drive gear 15 is meshed with the adjusting ring 11 through a second tooth block 14. A second servo motor 16 is fixed on the surface of sleeve rod 7. The output end of the second servo motor 16 is fixedly connected to the second drive gear 15. An electric winch 17 is also fixed on the surface of sleeve rod 7. A crossbeam 18 is fixed to the end of extension rod 8 away from sleeve rod 7. A steel cable 20 is provided on the electric winch 17. The steel cable 20 passes around the crossbeam 18 and is connected to a lifting beam 21. An adjusting rod 23 is installed on the lifting beam 21. A clamping rod 24 is installed through the outer side of the adjusting rod 23. A clamping plate 25 is fixed to the end of the clamping rod 24 away from the adjusting rod 23.
[0024] In one or more embodiments of this utility model, guide rods 9 are fixed on both sides of the lower end of the extension rod 8, and guide grooves 10 matching the guide rods 9 are provided on the inner wall of the sleeve rod 7. The end of the guide rod 9 away from the extension rod 8 is located in the corresponding guide groove 10. The guide rod 9 is slidably connected to the sleeve rod 7 through the guide groove 10, which facilitates the sliding of the guide rod 9 in the guide groove 10 and helps the guide rod 9 and the guide groove 10 to cooperate and restrict the rotation of the extension rod 8.
[0025] In one or more embodiments of this utility model, the surface of the extension rod 8 is provided with threads, and the adjusting ring 11 and the extension rod 8 are connected by a through thread. When the adjusting ring 11 rotates, the adjusting ring 11 can push the extension rod 8 to extend and retract within the sleeve rod 7 through the threads.
[0026] In one or more embodiments of this utility model, a docking ring 12 is fixed on the surface of the adjusting ring 11, and a docking groove 13 matching the docking ring 12 is opened at one end of the sleeve rod 7 facing the adjusting ring 11. The docking ring 12 is located in the docking groove 13, which facilitates the adjusting ring 11 to rotate on the sleeve rod 7 through the docking ring 12 and the docking groove 13.
[0027] In one or more embodiments of this utility model, fixed pulleys 19 are fixedly installed at both ends of the crossbeam 18, and the steel cable 20 is wrapped around the surface of the two fixed pulleys 19. The fixed pulleys 19 help the steel cable 20 to move smoothly, while limiting the movement trajectory of the steel cable 20.
[0028] In one or more embodiments of this utility model, an adjustment groove 22 is provided on the surface of the lifting beam 21, and an adjustment rod 23 is located in the adjustment groove 22. The adjustment rod 23 is rotatably connected to the lifting beam 21. The surface of the adjustment rod 23 is provided with two threads facing opposite directions. The adjustment rod 23 and the clamping rod 24 are connected by a through thread. The clamping plate 25 is fixed to the end of the clamping rod 24 away from the adjustment rod 23. When the adjustment rod 23 rotates on the lifting beam 21, the adjustment rod 23 can push the clamping rod 24 to slide in the adjustment groove 22 through the thread, which is beneficial for the clamping rod 24 to drive the clamping plate 25 to stably support the square pile.
[0029] In one or more embodiments of this utility model, three sets of clamping plates 25 are provided, with two clamping plates 25 in each set. Each set of clamping plates 25 has a rubber anti-slip pad 26 on its opposite surface. The clamping plates 25 are clamped to the surface of the square pile by the rubber anti-slip pad 26 under the action of the clamping rod 24, so as to prevent the square pile from slipping and improve the stability of the clamping.
[0030] When using, according to Figures 1-5 As shown, when it is necessary to lift and move the square pile, first start the electric winch 17 to release the steel cable 20 until the lifting beam 21 drives the clamping rod 24 and the clamping plate 25 to fall. Then, hold the lifting beam 21 and move the clamping plate 25 to the outside of the square pile. Turn the adjusting rod 23 to rotate on the lifting beam 21. The rotating adjusting rod 23 pushes the clamping rod 24 to slide in the adjusting groove 22 through the thread. At this time, the clamping rod 24 drives the clamping plate 25 to clamp the surface of the square pile.
[0031] When it is necessary to adjust the lifting height of the square pile, the second servo motor 16 is started. The second servo motor 16 can drive the adjusting ring 11 to rotate through the second drive gear 15 and the second gear block 14. The adjusting ring 11 rotates on the sleeve rod 7 through the docking ring 12 and the docking groove 13. The adjusting ring 11 pushes the extension rod 8 to adjust the height within the sleeve rod 7 through the thread. Then, the electric winch 17 is started in the opposite direction to wind up the steel cable 20. At this time, the steel cable 20 lifts the lifting beam 21 and the square pile clamped below it.
[0032] After the square pile is lifted, the first servo motor 4 is started. At this time, the first servo motor 4 drives the adjusting seat 2 to rotate through the first drive gear 5 and the first gear block 6. The adjusting seat 2 rotates on the counterweight base 1 through the thrust bearing 3. At this time, the adjusting seat 2 drives the lifting beam 21 and the square pile clamped below it to move through the sleeve rod 7, the extension rod 8 and the crossbeam 18. After the square pile is moved to the designated position, the electric winch 17 is started again to release the steel cable 20 until the lifting beam 21 places the square pile in the designated position through the clamping plate 25. Then, the adjusting rod 23 is turned in the opposite direction. The adjusting rod 23 pushes the clamping rod 24 through the thread to move the clamping plate 25 away from each other, so that the clamping plate 25 no longer clamps the square pile. At this time, the lifting and transfer of the square pile is completed.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A square pile single pile body hoisting device, comprising a counterweight base (1), characterized in that: An adjusting seat (2) is provided above the counterweight base (1). A thrust bearing (3) is installed between the adjusting seat (2) and the counterweight base (1). A first servo motor (4) is fixed on the surface of the counterweight base (1). The first servo motor (4) is connected to the adjusting seat (2) in a transmission manner. A sleeve rod (7) is fixed on the surface of the adjusting seat (2). An extension rod (8) is provided inside the sleeve rod (7). An adjusting ring (11) is connected to the outside of the extension rod (8). The adjusting ring (11) is installed on the sleeve rod (7). On the sleeve rod (7), a second servo motor (16) is fixed on the surface of the sleeve rod (7). The second servo motor (16) is connected to the adjusting ring (11) in a transmission. An electric winch (17) is also fixed on the surface of the sleeve rod (7). A crossbeam (18) is fixed at one end of the extension rod (8) away from the sleeve rod (7). A steel cable (20) is provided on the electric winch (17). The steel cable (20) passes around the crossbeam (18) and is connected to a lifting beam (21). A clamping plate (25) is installed on the lifting beam (21).
2. The single-pile lifting device for square piles according to claim 1, characterized in that: The output end of the first servo motor (4) is fixed with a first drive gear (5), and the surface of the adjustment seat (2) is provided with a first tooth block (6). The first drive gear (5) is meshed with the adjustment seat (2) through the first tooth block (6), and the first servo motor (4) can drive the adjustment seat (2) to rotate.
3. The single-pile lifting device for square piles according to claim 1, characterized in that: The surface of the adjusting ring (11) is provided with a second tooth block (14), and a second drive gear (15) is provided on the outer side of the adjusting ring (11). The second drive gear (15) is meshed with the adjusting ring (11) through the second tooth block (14). The output end of the second servo motor (16) is fixedly connected to the second drive gear (15), and the second servo motor (16) can drive the adjusting ring (11) to rotate.
4. The single-pile lifting device for square piles according to claim 1, characterized in that: Guide rods (9) are fixed on both sides of the lower end of the extension rod (8). The inner wall of the sleeve rod (7) is provided with guide grooves (10) that match the guide rods (9). The end of the guide rod (9) away from the extension rod (8) is located in the corresponding guide groove (10). The guide rod (9) is slidably connected to the sleeve rod (7) through the guide groove (10).
5. A single-pile lifting device for square piles according to claim 4, characterized in that: The extension rod (8) has a threaded surface, and the adjusting ring (11) and the extension rod (8) are connected by a through thread.
6. The single-pile lifting device for square piles according to claim 4, characterized in that: The adjusting ring (11) has a docking ring (12) fixed on its surface. The sleeve rod (7) has a docking groove (13) that matches the docking ring (12) at one end facing the adjusting ring (11). The docking ring (12) is located in the docking groove (13).
7. The single-pile lifting device for square piles according to claim 1, characterized in that: Fixed pulleys (19) are fixedly installed at both ends of the crossbeam (18), and the steel cable (20) is wrapped around the surface of the two fixed pulleys (19).
8. A single-pile lifting device for square piles according to any one of claims 1-7, characterized in that: The lifting beam (21) has an adjustment groove (22) on its surface. The adjustment rod (23) is located in the adjustment groove (22). The adjustment rod (23) is rotatably connected to the lifting beam (21). The surface of the adjustment rod (23) is provided with two threads facing opposite directions. The adjustment rod (23) and the clamping rod (24) are connected by a through thread. The clamping plate (25) is fixed to the end of the clamping rod (24) away from the adjustment rod (23).
9. A single-pile lifting device for square piles according to claim 8, characterized in that: The clamping plates (25) are provided in three sets, and each set has two clamping plates (25). Each set of clamping plates (25) has a rubber anti-slip pad (26) on the opposite surface.