Piling equipment for foundation construction
By designing limiting sleeves, threaded rods, and ground support mechanisms in the piling equipment, the friction and lateral support between the pile and the soil are enhanced, solving the problem of poor pile fixation in loose soil and achieving more stable foundation construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU YIDINGSU CONSTRUCTION ENGINEERING CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-05-19
AI Technical Summary
Existing piling equipment is not effective at fixing piles in loose soil, resulting in poor foundation stability and affecting project quality and safety.
A limiting sleeve and threaded rod system was designed inside the pile body. The threaded rod drives the conical head to move downward, and the squeezing plate and the protruding fixing nail penetrate into the soil, increasing the contact area and friction between the pile body and the soil. Additional lateral support is provided through the ground support mechanism.
It significantly improves the fixation effect of piles in loose soil, prevents loosening, ensures foundation stability, and improves project quality and safety.
Smart Images
Figure CN224259358U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building engineering technology, specifically a piling device for foundation construction. Background Technology
[0002] Piling equipment is an indispensable key machine in building construction. Its core task is to accurately and firmly implant piles into the ground, providing a solid foundation for various building projects. In actual operation, based on different working principles and technical characteristics, common piling equipment includes various types such as drop hammer pile drivers, air hammer pile drivers, diesel hammer pile drivers, hydraulic hammer pile drivers, vibratory pile drivers, and static pressure pile drivers. Each of these piling machines has its own advantages and is suitable for different construction environments, geological conditions, and building scale requirements. Among them, the drop hammer pile driver, as a basic and traditional piling machine, has [a significant role in] the construction field. With its unique position, the working principle of the drop hammer pile driving mechanism is relatively intuitive. It mainly relies on the powerful impact force accumulated by the hammer during its free fall to act on the pile body, thereby driving the pile steadily into the ground. From a structural perspective, the drop hammer pile driving mechanism is relatively simple in structure, mainly composed of three key components: the pile frame, the pile hammer, and the winch. The pile frame is like the skeleton of the equipment, bearing the heavy responsibility of supporting and stabilizing the overall structure, ensuring that the pile driving operation can be carried out continuously in a stable state. The pile hammer is the "heavy punch" of the equipment, and it is generally carefully crafted from high-strength materials such as cast steel. Its weight directly determines the strength of the striking force.
[0003] Existing piling equipment generally has a drawback: its surface is usually designed to be smooth and vertical. While this facilitates smooth sinking during the piling process, once the pile is driven into the ground, the limited friction between the pile and the surrounding soil results in poor underground fixation. In situations where the soil is loose, such as in sandy or backfilled areas, the pile is easily loosened by lateral forces or minor displacements of the foundation soil. This can affect the stability of the entire foundation, reduce the quality and safety of the project, and create hidden dangers for subsequent construction and use. Utility Model Content
[0004] The purpose of this utility model is to provide a pile driving device for foundation construction in order to solve the problems mentioned above.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a pile driving device for foundation construction, comprising: a pile body, wherein an inner cavity is formed inside the pile body, a limiting sleeve is fixedly connected to the middle section of the inner side of the inner cavity, a threaded through hole is formed inside the limiting sleeve, a threaded rod is screwed into the threaded through hole, a screw head is fixedly connected above the threaded rod, an internal hexagonal hole is formed above the screw head, a conical head is fixedly connected below the threaded rod, an extension hole is formed at the lower end of the outer side of the pile body, an extrusion plate is installed at the lower end of the inner cavity, an extension fixing nail is fixedly connected to the side of the extrusion plate, and four sets of extrusion plates are provided, with a spring fixedly connected between each set of extrusion plates.
[0006] As a further embodiment of this utility model: a first fixing block is fixedly connected to the upper end of the side of the pile body, a telescopic damping rod is hinged to the side of the first fixing block, a second fixing block is fixedly connected to the other end of the telescopic damping rod, and a ground reinforcement plate is hinged to the other end of the second fixing block.
[0007] As a further embodiment of this utility model: a cone is fixedly connected to the bottom of the pile body, and a force-bearing head is fixedly connected to the top of the pile body.
[0008] As a further improvement of this utility model: the conical head is a cone that is wider at the top and narrower at the bottom, and multiple sets of the protruding holes and the protruding fixing pins are provided, and their sizes are matched.
[0009] As a further improvement of this utility model: the four sets of extrusion plates are arranged in a circular array, and two sets of springs are installed between each set of extrusion plates.
[0010] As a further embodiment of this utility model: the ground support mechanism consisting of the first fixing block, the telescopic damping rod, the second fixing block and the ground reinforcement plate is provided in four sets, which are arranged around the side of the pile body.
[0011] As a further improvement of this utility model, four sets of ground nail through holes are symmetrically opened at the four ends of the ground reinforcement plate.
[0012] As a further improvement of this utility model: the force-receiving head is a plane, and the height of the plane is higher than the height of the screw head.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This invention enhances underground stability through a unique design. Workers use an Allen wrench to rotate the head, causing the threaded rod and the lower conical head to move downwards. The conical head presses against four sets of extrusion plates arranged in a circular array. These plates overcome spring force and expand outwards, allowing the protruding fixing nails, which are fixed to the sides, to extend from the lower outer end of the pile and penetrate the surrounding soil. These numerous protruding fixing nails significantly increase the contact area and friction between the pile and the soil. Compared to existing equipment, this provides stronger anchoring force in various soil types, especially loose soil, effectively preventing the pile from loosening due to lateral forces or minor displacements of the foundation soil. This significantly improves the pile's underground stability, laying a solid foundation for foundation stability. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of a piling device for foundation construction according to the present invention;
[0016] Figure 2 This is a schematic diagram of the threaded rod in a pile driving device for foundation construction according to the present invention;
[0017] Figure 3 This is a schematic diagram of the structure at point A in the pile driving equipment for foundation construction described in this utility model;
[0018] Figure 4 This is a side sectional view of the piling equipment for foundation construction described in this utility model.
[0019] In the diagram: 1. Pile body; 2. Inner cavity; 3. Limiting sleeve; 4. Threaded through hole; 5. Threaded rod; 6. Tightening head; 7. Hexagonal socket; 8. Conical head; 9. Protruding hole; 10. Extrusion plate; 11. Protruding fixing nail; 12. Spring; 13. First fixing block; 14. Telescopic damping rod; 15. Second fixing block; 16. Ground reinforcement plate; 17. Cone; 18. Force-bearing head. Detailed Implementation
[0020] 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.
[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.
[0022] Reference Figures 1 to 4 In this embodiment of the utility model, a pile driving device for foundation construction includes: a pile body 1, which is the core load-bearing component of the entire device. The pile body 1 has an inner cavity 2 inside, which provides a space for the operation of other components inside the device. A limiting sleeve 3 is fixedly connected to the middle section of the inner side of the inner cavity 2. The threaded through hole 4 inside the limiting sleeve 3 is the running track of the threaded rod 5. In the initial stage of pile driving, the workers use the pile driving machinery to apply a downward force to the force-bearing head 18 above the pile body 1. Since the force-bearing head 18 is flat and its height is higher than the screw head 6, this design ensures that the force can be evenly transmitted during the pile driving process. At this time, the cone 17 fixed below the pile body 1 can effectively reduce the resistance when the pile body enters the soil, and help the pile body to enter the soil smoothly in the initial stage.
[0023] The threaded rod 5 is screwed into the threaded through hole 4, and a screw head 6 is fixed above it. An internal hexagonal hole 7 is opened above the screw head 6. When part of the pile body 1 enters the ground, if it is necessary to further enhance the stability of the pile body underground, the workers can use an internal hexagonal wrench to insert into the internal hexagonal hole 7. By rotating the screw head 6, the threaded rod 5 fixed to it will rotate and move downward in the threaded through hole 4 inside the limiting sleeve 3. As the threaded rod 5 moves downward, the conical head 8 fixed below it also descends synchronously. The shape of the conical head 8, which is wider at the top and narrower at the bottom, will exert a downward squeezing force on the extrusion plate 10 below during the downward movement.
[0024] An extension hole 9 is provided at the lower outer end of the pile body 1, and a compression plate 10 is installed at the lower inner end of the inner cavity 2. An extension fixing nail 11 is fixedly connected to the side of the compression plate 10. Since there are four sets of compression plates 10 arranged in a circular array, and a spring 12 is fixedly connected between each set of compression plates 10, under the compression action of the conical head 8, the compression plate 10 will overcome the elastic force of the spring 12 and expand in all directions. At this time, the extension fixing nail 11 fixed to the side of the compression plate 10 will extend out from the extension hole 9 at the lower outer end of the pile body 1 and penetrate into the surrounding soil, thereby increasing the friction and anchoring force between the pile body and the surrounding soil, significantly improving the fixing effect of the pile body underground. The number of extension holes 9 and extension fixing nails 11 are both set in multiple sets and are matched in size, further ensuring the effectiveness of this fixing mechanism.
[0025] A first fixing block 13 is fixedly connected to the upper side of the pile body 1. A telescopic damping rod 14 is hinged to the side of the first fixing block 13. A second fixing block 15 is fixedly connected to the other end of the telescopic damping rod 14. A ground reinforcement plate 16 is hinged to the other end of the second fixing block 15. At the same time, the ground support mechanism composed of the first fixing block 13, the telescopic damping rod 14, the second fixing block 15, and the ground reinforcement plate 16 begins to function. During the process of the pile body entering the soil, the ground reinforcement plate 16 is always in contact with the ground. As the depth of the pile body entering the soil increases, the telescopic damping rod 14... The ground reinforcement plate 16 can be extended and adjusted according to the actual situation to ensure that it can be stably supported on the ground. Workers can insert ground nails through the four sets of ground nail through holes symmetrically opened at the four ends of the ground reinforcement plate 16 to firmly fix the ground reinforcement plate 16 to the ground, providing additional lateral support for the pile body and preventing the pile body from shaking or tilting during construction, further ensuring the stability and accuracy of the pile driving operation. In addition, there are four sets of ground support mechanisms, which are arranged around the side of the pile body 1, enhancing the support effect of the pile body in all directions.
[0026] The force-bearing head 18, which is fixed above the pile body 1, serves as the direct point of application of force by the pile driving machinery. Its planar design ensures the uniform distribution of force, providing a key guarantee for the smooth progress of the pile driving operation.
[0027] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0028] The working principle of this utility model is as follows: A comprehensive inspection of the integrity of all components of the piling equipment is conducted. This includes checking for cracks or deformation in the pile body 1, ensuring the inner cavity 2 is unobstructed, and verifying the secure connections of components such as the limit sleeve 3, threaded rod 5, and conical head 8. The inspection also checks the condition of the screwdriver 6 and the internal hexagonal hole 7 to ensure the internal hexagonal wrench can be inserted smoothly. Simultaneously, the inspection checks for damage to the compression plate 10 and the protruding fixing nail 11, and the normal elasticity of the spring 12. For the ground support mechanism, the inspection checks the flexibility of the connection between the first fixing block 13, the telescopic damping rod 14, and the second fixing block 15, the damage to the ground reinforcement plate 16, and the unobstructed access of the ground nail holes. The construction site is then cleaned, removing debris and obstacles to ensure it is flat and firm enough to bear the piling equipment and subsequent construction loads. The process is carried out according to the construction drawings. The precise location of the driven pile is measured and marked. The pile driving equipment is then hoisted to the designated position, aligning pile 1 with the marked point. The pile driving machinery is started, applying a downward force to the force-bearing head 18 above pile 1. Since the force-bearing head 18 is planar and higher than the screw head 6, the force is evenly transmitted to pile 1. The cone 17 fixed below pile 1 reduces the resistance to soil penetration, allowing pile 1 to smoothly and initially penetrate the soil. During the penetration process, the verticality of the pile is closely observed, and the pile driving machinery is adjusted promptly if there is any deviation. When pile 1 has penetrated to a certain depth, if it is necessary to enhance underground stability, the workers use an Allen wrench to insert into the Allen hole 7 above the screw head 6 and rotate the screw head 6 clockwise. The screw head 6 drives the threaded rod 5 to rotate and move downward within the threaded through hole 4 inside the limiting sleeve 3. The conical head 8 fixed below descends synchronously, pressing against the four sets of extrusion plates 10 arranged in a circular array below. The extrusion plates 10 expand outwards against the elastic force of the springs 12 fixed between each set. The protruding fixing nails 11 fixed to the side of the extrusion plates 10 extend from the protrusion holes 9 opened at the lower outer end of the pile body 1, piercing into the surrounding soil, increasing the friction and anchoring force between the pile body and the soil. During this process, pay attention to the force and number of turns of the screw head 6 to ensure that the protruding fixing nails 11 extend evenly in all directions. As the depth of the pile body 1 into the soil increases, the first fixing block 13 fixed to the upper side of the pile body 1, the telescopic damping rod 14 hinged to it, the second fixing block 15 fixed to the other end of the telescopic damping rod 14, and the ground reinforcement plate hinged to the other end of the second fixing block 15 are all connected to the pile body 1. The ground support mechanism consisting of 16 units begins to function. The length of the telescopic damping rod 14 is adjusted to ensure the ground reinforcement plate 16 is in full contact with the ground and remains level. Ground nails are used to firmly fix the ground reinforcement plate 16 to the ground through the symmetrically placed holes at its four ends. The ground nails must be driven vertically into the ground to ensure a secure hold, providing additional lateral support for the pile and preventing it from swaying or tilting during subsequent construction. The four sets of ground support mechanisms are operated and set up sequentially according to the above steps. After the piling operation is completed, the surface of the piling equipment is cleaned of mud and debris, and all components of the equipment are cleaned and maintained to prepare for the next use. Residual mud and debris are cleaned from the construction site, restoring the site environment. Construction tools and remaining materials are organized according to construction standards.Inspect the pile's penetration depth, verticality, and the stability of the ground support to ensure the pile driving quality meets requirements. For any non-compliance, take timely remedial measures.
[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A piling device for foundation construction, characterized in that, include: The pile body (1) has an inner cavity (2) inside. A limiting sleeve (3) is fixedly connected to the middle section of the inner cavity (2). A threaded through hole (4) is opened inside the limiting sleeve (3). A threaded rod (5) is screwed into the threaded through hole (4). A screw head (6) is fixedly connected above the threaded rod (5). An internal hexagonal hole (7) is opened above the screw head (6). A conical head (8) is fixedly connected below the threaded rod (5). An extension hole (9) is opened at the lower end of the outer side of the pile body (1). A pressing plate (10) is installed at the lower end of the inner cavity (2). An extension fixing nail (11) is fixedly connected to the side of the pressing plate (10). There are four sets of pressing plates (10), and a spring (12) is fixedly connected between each set of pressing plates (10).
2. The piling equipment for foundation construction according to claim 1, characterized in that, A first fixing block (13) is fixedly connected to the upper side of the pile body (1), and a telescopic damping rod (14) is hinged to the side of the first fixing block (13). A second fixing block (15) is fixedly connected to the other end of the telescopic damping rod (14), and a ground reinforcement plate (16) is hinged to the other end of the second fixing block (15).
3. The piling equipment for foundation construction according to claim 1, characterized in that, A cone (17) is fixedly connected to the bottom of the pile (1), and a force-bearing head (18) is fixedly connected to the top of the pile (1).
4. The piling equipment for foundation construction according to claim 1, characterized in that, The conical head (8) is a cone that is wider at the top and narrower at the bottom. The number of protruding holes (9) and protruding fixing pins (11) are both provided in multiple sets, and their sizes are compatible.
5. The piling equipment for foundation construction according to claim 1, characterized in that, The four sets of extrusion plates (10) are arranged in a circular array, and two sets of springs (12) are installed between each set of extrusion plates (10).
6. The piling equipment for foundation construction according to claim 2, characterized in that, The ground support mechanism consisting of the first fixing block (13), the telescopic damping rod (14), the second fixing block (15) and the ground reinforcement plate (16) is arranged in four sets, which are arranged around the side of the pile body (1).
7. A piling device for foundation construction according to claim 2, characterized in that, Four sets of ground nail through holes are symmetrically opened at the four ends of the ground reinforcement plate (16).
8. A piling device for foundation construction according to claim 3, characterized in that, The force-receiving head (18) is a plane, and the plane height is higher than the plane height of the screw head (6).