Square pile hoisting device
By designing components such as limiters and strong springs, the shortcomings of the square pile hoisting device in terms of fixation were solved, achieving stability and safety in hoisting and ensuring the accurate placement of the square piles.
Patent Information
- Application Number
- CN202423015221.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-08
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-08
AI Technical Summary
The existing square pile hoisting equipment lacks an effective limiting design for fixing, which makes the square piles prone to slipping during hoisting, affecting construction safety and accuracy.
The hoisting device, composed of components such as limiters, arc plates, circular plates, lifting spikes, and strong springs, achieves fixation by having the lifting spikes adhere to the surface of the square pile and utilizing the elastic force and reaction force of the strong springs, thus ensuring the stability of the hoisting.
It improves the safety and accuracy of square pile hoisting, reduces swaying, has a simple structure, is easy to operate, and is low in cost and durable.
Smart Images

Figure CN223547544U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction technology, and in particular to a square pile hoisting device. Background Technology
[0002] Square piles are a type of building foundation material, characterized by their square shape, and are widely used in foundation construction of building projects. Square pile hoisting devices are widely used in pile foundation engineering. During the horizontal hoisting, rotating erection, and installation of square piles, they are hoisted from the storage area by binding, and accurately placed in the position required by the design.
[0003] Secure the connection by attaching the rigging to the crane hook. The crane operator slowly raises the hook, transferring the lifting force to the lifting device via the rigging, thus lifting the square pile from the ground. Once the square pile is above the target location, the crane operator slowly lowers the hook to accurately place the square pile in the designed position.
[0004] In the existing technology, some square pile hoisting devices lack effective limiting design for fixing square piles during use, which makes the square piles very easy to slide during hoisting, seriously threatening construction safety and making it difficult to ensure that the square piles are hoisted to the accurate position, resulting in reduced safety. Therefore, in order to address the above shortcomings, a square pile hoisting device is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above deficiencies, this utility model provides a square pile hoisting device, which aims to improve the problem that some existing square pile hoisting devices lack limiting positions during installation, resulting in reduced work safety.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A square pile hoisting device includes a connector. A U-shaped ring is fixedly connected to the right side of the connector. A snap ring is slidably connected to the outside of the U-shaped ring. A limiter is fixedly connected to the top side of the snap ring. Arc-shaped plates are fixedly connected to the front and rear sides of the inner wall of the limiter. Circular plates are slidably connected to the outside of the two arc-shaped plates. A lifting nail is fixedly connected to the bottom side of the circular plate. Connecting plates are slidably connected to the inner walls of the lifting nail. A reset assembly for resetting the connecting plates is fixedly connected to adjacent sides of the plurality of connecting plates.
[0008] As a further description of the above technical solution:
[0009] The reset assembly includes multiple connecting plates, with the far side of each connecting plate fixedly connected to the near side of the connecting plates, and multiple strong springs fixedly connected to the near side of each connecting plate.
[0010] As a further description of the above technical solution:
[0011] The connecting plate has multiple cavities inside, and the near ends of the multiple strong springs are respectively fixedly connected to the inner walls of the connecting member.
[0012] As a further description of the above technical solution:
[0013] The outer sides of the plurality of connecting plates are slidably connected to the inner walls of the hanging nail, and the outer sides of the hanging nail are slidably connected to the adjacent sides of the two arc-shaped plates;
[0014] As a further description of the above technical solution:
[0015] The buckle ring has an arc-shaped opening inside, and the outer side of the circular plate is slidably connected to the inside of the buckle ring.
[0016] This utility model has the following beneficial effects:
[0017] 1. In this utility model, the limiter prevents the square pile from slipping, making lifting the square pile more convenient and safer; moreover, the lifting device has a simple structure, is easy to operate, has a fast connection speed, low cost, is durable, and effectively reduces the swaying of the square pile during lifting operations. It has certain practicality and economic benefits.
[0018] 2. In this utility model, by continuing to insert the hanging nail, the connecting plate, under the combined action of the elastic force of the strong spring and the reaction force of the square pile surface, tightly fits the square pile surface, and its shape is adapted to the outer contour of the square pile, thereby improving the gripping and fixing of the square pile. Attached Figure Description
[0019] Figure 1 This is a perspective view of a square pile hoisting device proposed in this utility model;
[0020] Figure 2 This is a schematic diagram of the arc-shaped plate of a square pile hoisting device proposed in this utility model;
[0021] Figure 3 This is a schematic diagram of the connecting plate of a square pile hoisting device proposed in this utility model;
[0022] Figure 4 for Figure 3 Enlarged view of point A in the middle.
[0023] Legend:
[0024] 1. Connector; 2. U-shaped ring; 3. Snap ring; 4. Arc-shaped opening; 5. Hanging nail; 6. Connecting plate; 7. Connecting plate; 8. Cavity; 9. Strong spring; 10. Limiter; 11. Arc-shaped plate; 12. Round plate. Detailed Implementation
[0025] 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.
[0026] Reference Figures 1 to 2 This utility model provides an embodiment of a square pile hoisting device, including a connector 1. The connector 1 serves as the core connecting hub of the entire hoisting device, capable of withstanding significant tensile and impact forces to ensure effective force transmission and uniform distribution. A U-shaped ring 2 is fixedly connected to the right side of the connector 1, providing a foundation for the installation of subsequent components. A locking ring 3 is slidably connected to the outside of the U-shaped ring 2, allowing for flexible sliding on the U-shaped ring 2 to facilitate adjustment of position and angle for precise gripping and fixing of the square pile. An arc-shaped opening 4 is provided inside the locking ring 3, providing space for the movement of subsequent components. A limiter 10 is fixedly connected to the top side of the locking ring 3, limiting and controlling the hoisting height and position of the square pile to prevent excessive rise or displacement during hoisting. Arc-shaped plates 11 are fixedly connected to both the front and rear sides of the inner wall of the limiter 10, providing guidance and constraint for the movement of other components. Two arc-shaped plates 11 are externally slidably connected to a circular plate 12, which can slide smoothly on the arc-shaped plates 11. The circular plate 12 is externally slidably connected to the inner wall of the snap ring 3, ensuring the stability and directionality of the circular plate 12's movement. A hanging nail 5 is fixedly connected to the bottom side of the circular plate 12. The hanging nail 5 has a conical shape, allowing it to penetrate the surface of the square pile and bear the weight of the square pile.
[0027] Reference Figures 2 to 4The inner walls of the lifting nail 5 are slidably connected to connecting plates 6, which allow the connecting plates 6 to slide stably due to the constraint of the lifting nail 5. Reset components for resetting the connecting plates 6 are fixedly connected to adjacent sides of the multiple connecting plates 6, allowing the connecting plates 6 to return to their initial positions after the lifting operation. The reset components include multiple connecting plates 7, which provide connection and support for the reset components. The outer sides of the multiple connecting plates 7 are slidably connected to the inner walls of the lifting nail 5, allowing the connecting plates 7 to slide stably due to the constraint of the lifting nail 5. The outer sides of the lifting nail 5 are slidably connected to adjacent sides of the two arc-shaped plates 11, allowing the arc-shaped plates 11 to slide stably due to the constraint of the lifting nail 5. The distant sides of the multiple connecting plates 7 are fixedly connected to adjacent sides of the multiple connecting plates 6, making the connecting plates 7 and connecting plates 6 tightly connected to form a whole. Multiple cavities 8 are formed inside the connecting plates 7, providing installation and movement space for other internal components. Multiple strong springs 9 are fixedly connected to adjacent sides of multiple connecting plates 6. The strong springs 9 provide support for the repositioning of the connecting plates 6. The adjacent ends of the multiple strong springs 9 are respectively fixedly connected to the inner walls of the connecting parts 1, ensuring the stability of the two fixed points of the strong springs 9.
[0028] Working Principle: The lifting nails 5 are pre-embedded in the concrete of the square pile according to specific position requirements (both sides and the middle lifting position), with the nails 5 exposed in the pre-reserved lifting holes. When lifting the square pile, first operate the device, aligning the notch of the locking ring 3 on the main body of the hoist with the pre-embedded lifting nails 5. Then rotate the main body of the spherical hoist, causing the lifting nails 5 to engage with the locking ring 3 along the arc-shaped opening 4. The circular plate 12 is in its initial position, and the lifting nails 5 are also at a higher position. As the rotation continues until the limiter 10 contacts the square pile, the initial connection and positioning of the device with the square pile and the lifting nails 5 is completed. Next, the hook of the hoisting equipment hooks onto the upper opening of the connecting piece 1, and the hoisting equipment begins to apply tension. Under the tension, the connecting piece 1 experiences an upward force, which in turn drives the connected U-shaped ring 2, locking ring 3, and circular plate 12. The circular plate 12 begins to slide downwards on the arc-shaped plate 11, simultaneously driving the lifting nails 5 downwards. Because the lifting nail 5 slides against the connecting plate 6, and the connecting plate 6 is fixedly connected to the connecting plate 7, during the process of the lifting nail 5 being engaged with the square pile, the connecting plate 6 is compressed by the surface of the square pile and will slide towards the same side on the inner wall of the lifting nail 5. At this time, the powerful spring 9 inside the connecting plate 7 is compressed, storing elastic potential energy. As the lifting nail 5 continues to be engaged, under the combined action of the elastic force of the powerful spring 9 and the reaction force of the square pile surface, the connecting plate 6 tightly fits the surface of the square pile, and its shape adapts to the outer contour of the square pile, thereby improving the gripping and fixing of the square pile.
[0029] 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. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 square pile hoisting device, comprising a connector (1), characterized in that: A U-shaped ring (2) is fixedly connected to the right side of the connector (1). A snap ring (3) is slidably connected to the outside of the U-shaped ring (2). A limiter (10) is fixedly connected to the top side of the snap ring (3). Arc plates (11) are fixedly connected to both the front and rear sides of the inner wall of the limiter (10). A circular plate (12) is slidably connected to the outside of the two arc plates (11). A hanging nail (5) is fixedly connected to the bottom side of the circular plate (12). A connecting plate (6) is slidably connected to the inner walls of the hanging nail (5). A reset assembly for resetting the connecting plate (6) is fixedly connected to the adjacent side of the multiple connecting plates (6).
2. The square pile hoisting device according to claim 1, characterized in that: The reset assembly includes multiple connecting plates (7), with the far side of the multiple connecting plates (7) respectively fixedly connected to the near side of the multiple connecting plates (6), and multiple strong springs (9) fixedly connected to the near side of the multiple connecting plates (6).
3. The square pile hoisting device according to claim 2, characterized in that: The connecting plate (7) has multiple cavities (8) inside, and the near ends of the multiple strong springs (9) are respectively fixedly connected to the inner walls of the connecting member (1).
4. The square pile hoisting device according to claim 3, characterized in that: The outer sides of the multiple connecting plates (7) are slidably connected to the inner walls of the hanging nail (5), and the outer sides of the hanging nail (5) are slidably connected to the adjacent sides of the two arc-shaped plates (11).
5. The square pile hoisting device according to claim 1, characterized in that: The buckle ring (3) has an arc-shaped opening (4) inside, and the outer side of the circular plate (12) is slidably connected to the inner wall of the buckle ring (3).