A concrete pipe pile with anti-collision structure

Abstract

This utility model provides a concrete pipe pile with an anti-collision structure, including a concrete pipe pile body. An upper sleeve plate and a lower sleeve plate are respectively fitted at both ends of the concrete pipe pile body. Several protective rods fixedly installed between the upper and lower sleeve plates are fitted with shock-absorbing rings. Lifting rings are installed on the upper and lower sleeve plates respectively. The pile support plate is connected to the lower sleeve plate and a pre-embedded nut embedded in one end face of the concrete pipe pile body via bolts. This utility model forms a three-dimensional protection system through a circular array of protective rods between the upper and lower sleeve plates and equidistant shock-absorbing rings. Upon collision, the protective rods buffer the impact, and the shock-absorbing rings absorb energy, reducing pile damage. The anti-slip and shock-absorbing lining inside the sleeve plates increases friction and reduces vibration. The array and equidistant arrangement disperse stress, and the inner diameter design of the shock-absorbing rings achieves all-around protection, improving the reliability of transportation and installation.

Description

Technical Field

[0001] This utility model belongs to the field of concrete pipe pile technology, and in particular relates to a concrete pipe pile with an anti-collision structure. Background Technology

[0002] Concrete pipe piles, as commonly used foundation components in building construction, can be classified into prestressed concrete pipe piles (PC pipe piles), prestressed thin-walled concrete pipe piles (PTC pipe piles), and prestressed high-strength concrete pipe piles (PHC pipe piles) according to concrete strength grade and wall thickness. These types of pipe piles are widely used in foundation treatment for industrial and civil buildings, bridges, ports, and other projects due to their high strength and ease of construction.

[0003] However, existing concrete pipe piles are highly susceptible to collisions with external objects (such as transport vehicles, hoisting equipment, and other pipe piles) during transportation or vertical lifting operations. Because pipe piles are brittle materials, collisions easily lead to end-face damage and pile body cracking, affecting not only their mechanical properties and service life but also increasing maintenance or replacement costs during construction and potentially delaying the project schedule. Furthermore, existing protective structures often rely on additional cushioning materials, resulting in loose structures, limited shock absorption, and inconvenient installation and disassembly, failing to meet actual engineering requirements.

[0004] Therefore, it is essential to invent a concrete pipe pile with an anti-collision structure. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a concrete pipe pile with an anti-collision structure, including a concrete pipe pile body, an upper sleeve plate, a lower sleeve plate, protective rods, shock-absorbing rings, lifting rings, a pile support plate, and pre-embedded nuts. The upper sleeve plate and the lower sleeve plate are respectively fitted at both ends of the concrete pipe pile body. Several protective rods fixedly installed between the upper sleeve plate and the lower sleeve plate are fixedly equipped with shock-absorbing rings. Lifting rings are respectively installed on the upper sleeve plate and the lower sleeve plate. The pile support plate is connected to the lower sleeve plate and a pre-embedded nut embedded on one end face of the concrete pipe pile body by bolts.

[0006] Preferably, the inner ring surfaces of both the upper and lower sleeves are provided with anti-slip and shock-absorbing linings, and a static pressure hammer is reserved on one side of the upper sleeve fitted at one end of the concrete pipe pile body.

[0007] Preferably, the protective rods between the upper and lower sleeves are arranged in a circular array, wherein the shock-absorbing rings are equidistantly arranged on the protective rods along the axis of the concrete pipe pile body, and the inner diameter of the shock-absorbing rings is greater than or equal to the outer diameter of the concrete pipe pile body.

[0008] Preferably, the end face of the lower sleeve is flush with the end face of the concrete pipe pile body, and the lower sleeve is fitted onto the lower end of the concrete pipe pile body.

[0009] Preferably, the pre-embedded nuts embedded on the lower end face of the lower sleeve and the concrete pipe pile body correspond to the mounting holes on the pile support plate. The pile support plate is provided with two sets of mounting hole groups arranged in a circular array. The outer ring of mounting hole groups corresponds to the lower sleeve, and the inner ring of mounting hole groups corresponds to the pre-embedded nuts.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This invention features a circular array of protective rods arranged between the upper and lower sleeve plates, with equidistantly distributed shock-absorbing rings on the protective rods, forming a three-dimensional protective structure surrounding the main body of the pipe pile. When the pipe pile is impacted, the protective rods first buffer the external impact force, and the shock-absorbing rings absorb energy through their own elastic deformation, preventing the impact force from acting directly on the pipe pile body and significantly reducing the risk of pile damage.

[0012] In addition, the inner rings of the upper and lower sleeve discs of this utility model are provided with anti-slip and shock-absorbing liners, which can not only increase the friction between the sleeve disc and the main body of the pipe pile and prevent the sleeve disc from sliding during transportation, but also reduce the vibration transmission between the pipe pile and the sleeve disc through the buffering effect of the lining material, thereby further improving the overall shock absorption effect.

[0013] The circular array and equidistant arrangement of the protective rod and shock-absorbing rings in this utility model can evenly distribute the impact force to the circumference of the pipe pile, avoiding local stress concentration; the design of the inner diameter of the shock-absorbing ring being greater than or equal to the outer diameter of the pipe pile ensures that it can completely wrap the pipe pile, achieving all-round protection and further improving the reliability of the pipe pile during transportation and installation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is an exploded structural diagram of the present invention.

[0016] Figure 3 This is another overall structural schematic diagram of this utility model.

[0017] In the picture:

[0018] 1. Concrete pipe pile body; 2. Upper sleeve plate; 3. Lower sleeve plate; 4. Protective rod; 5. Shock-absorbing ring; 6. Lifting ring; 7. Pile support plate; 8. Embedded nut. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0020] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for 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 the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0021] As attached Figure 1 To be continued Figure 3 As shown:

[0022] This utility model provides a concrete pipe pile with an anti-collision structure, including a concrete pipe pile body 1, an upper sleeve plate 2, a lower sleeve plate 3, a protective rod 4, a shock-absorbing ring 5, a lifting ring 6, a pile support plate 7, and a pre-embedded nut 8. The upper sleeve plate 2 and the lower sleeve plate 3 are respectively sleeved on both ends of the concrete pipe pile body 1. Several protective rods 4 are fixedly installed between the upper sleeve plate 2 and the lower sleeve plate 3, and shock-absorbing rings 5 ​​are fixedly installed on them. Lifting rings 6 are respectively installed on the upper sleeve plate 2 and the lower sleeve plate 3. The pile support plate 7 is connected to the lower sleeve plate 3 and the pre-embedded nut 8 embedded on one end face of the concrete pipe pile body 1 by bolts.

[0023] Furthermore, both the upper sleeve 2 and the lower sleeve 3 are annular metal components, such as those made of Q235 steel, with their inner diameters matching the outer diameter of the concrete pipe pile body 1. The inner surfaces of both the upper sleeve 2 and the lower sleeve 3 are bonded with a layer of anti-slip and shock-absorbing lining 21 using high-strength structural adhesive. The lining 21 is made of weather-resistant rubber or elastic polyurethane material, and its inner surface has dense anti-slip textures, such as a mesh or wave pattern, which increases the friction with the outer surface of the concrete pipe pile body 1. Simultaneously, the material's elasticity absorbs the vibration energy between the pipe pile and the sleeve.

[0024] Furthermore, the upper sleeve 2 fitted at the top of the concrete pipe pile body 1 is far from the end face of the concrete pipe pile body 1 and has a reserved area for the static pressure hammer to cooperate with it. This area is an annular groove structure with a width that matches the pressure head of the static pressure hammer. The inner surface of the groove is machined with anti-slip teeth, which can accurately engage with the pressure head of the static pressure hammer to avoid the sleeve and the equipment from sliding and misaligning during pile driving.

[0025] Furthermore, several protective rods 4 are fixedly installed between the upper sleeve plate 2 and the lower sleeve plate 3. The protective rods 4 are cylindrical rods made of round steel or aluminum alloy, and are preferably arranged in a circular array with the axis of the concrete pipe pile body 1 as the center. The top ends of the rods are fixed to the bottom surface of the outer edge of the upper sleeve plate 2 by welding or bolting, and the bottom ends are fixed to the top surface of the outer edge of the lower sleeve plate 3, forming a ring-shaped protective frame around the concrete pipe pile body 1. Multiple shock-absorbing rings 5 ​​are equidistantly arranged on the protective rods 4 along the axis of the concrete pipe pile body 1. The shock-absorbing rings 5 ​​are circular elastic bodies made of rubber or polyurethane material, and their inner diameter is 5-10 mm larger than the outer diameter of the concrete pipe pile body 1 to ensure that they do not directly contact the pipe pile body. Each shock-absorbing ring 5 is fitted onto the protective rod 4 through a through hole opened on the ring body.

[0026] Furthermore, the lower sleeve 3 is fitted onto the lower end of the concrete pipe pile body 1, and its lower end face is completely flush with the lower end face of the concrete pipe pile body 1 without any protrusion or depression; the inner ring of the lower sleeve 3 is tightly fitted to the outer surface of the concrete pipe pile body 1 through an anti-slip and shock-absorbing lining.

[0027] Furthermore, the pile support plate 7 is a circular steel plate with two sets of circularly arranged mounting holes: the outer ring mounting holes correspond to the lower sleeve plate 3, and the inner ring mounting holes correspond to the pre-embedded nuts 8 embedded on the lower end face of the concrete pipe pile body 1. The outer ring mounting holes contain 6-8 through holes with a diameter 2-3mm larger than the connecting bolts, arranged in a circular array with the axis of the concrete pipe pile body 1 as the center, and the array radius is consistent with the bolt holes on the lower sleeve plate 3; the inner ring mounting holes contain 4-6 through holes with a diameter matching the thread diameter of the pre-embedded nuts 8, the array radius is smaller than that of the outer ring mounting holes, and the positions of the pre-embedded nuts 8 on the lower end face of the concrete pipe pile body 1 are one-to-one. During installation, the outer bolt 73 passes through the outer ring mounting holes and is screwed into the bolt holes of the lower sleeve plate 3, while the inner bolt passes through the inner ring mounting holes and is directly tightened to the pre-embedded nuts 8, achieving a double fixed connection between the pile support plate 7, the lower sleeve plate 3, and the concrete pipe pile body 1, ensuring the stability of the support structure.

[0028] The working principle is as follows: First, during the transportation and lifting of the concrete pipe pile, the lifting rings 6 on the upper sleeve 2 and the lower sleeve 3 are used to connect with the lifting equipment to realize the vertical lifting or horizontal handling of the pipe pile; when the pipe pile collides with external objects such as transport vehicles, other pipe piles or lifting equipment, the protective rod 4 arranged around the main body 1 of the concrete pipe pile first bears the external impact force, and acts as the first layer of protection to disperse the collision energy; subsequently, the shock-absorbing ring 5 fitted on the protective rod 4 further absorbs the remaining impact energy through its own elastic deformation. Since the inner diameter of the shock-absorbing ring 5 is larger than the outer diameter of the main body 1 of the pipe pile, it can prevent the collision force from being directly transmitted to the pipe pile body, thereby effectively preventing damage or cracking of the pile body.

[0029] Secondly, during the pile driving stage, the area reserved for the static pressure hammer in the upper sleeve plate 2 precisely engages with the static pressure hammer head through annular grooves and anti-slip teeth, preventing the sleeve plate from sliding and misaligning with the equipment, thus ensuring the stability and efficiency of the pile driving operation. The design of the lower sleeve plate 3 being flush with the lower end of the pipe pile body 1 reduces the risk of additional collisions caused by the protruding sleeve plate during transportation or stacking. After the pipe pile body 1 is vertically lifted, the pile support plate 7 is disassembled, and then the upper sleeve plate 2 and lower sleeve plate 3 are disassembled to provide a foundation for subsequent burial in the ground.

[0030] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A concrete pipe pile with an anti-collision structure, characterized in that, The concrete pipe pile body (1) includes an upper sleeve plate (2), a lower sleeve plate (3), a protective rod (4), a shock-absorbing ring (5), a lifting ring (6), a pile support plate (7), and a pre-embedded nut (8). The upper sleeve plate (2) and the lower sleeve plate (3) are respectively fitted at both ends of the concrete pipe pile body (1). The shock-absorbing ring (5) is fixedly installed on several of the protective rods (4) between the upper sleeve plate (2) and the lower sleeve plate (3). The lifting ring (6) is installed on the upper sleeve plate (2) and the lower sleeve plate (3). The pile support plate (7) is connected to the lower sleeve plate (3) and the pre-embedded nut (8) embedded on one end face of the concrete pipe pile body (1) by bolts.

2. A concrete pipe pile with an anti-collision structure as described in claim 1, characterized in that: The inner ring surfaces of the upper sleeve (2) and the lower sleeve (3) are both provided with anti-slip and shock-absorbing linings. The upper sleeve (2) fitted at one end of the concrete pipe pile body (1) has a reserved area for a static pressure hammer to cooperate with.

3. A concrete pipe pile with an anti-collision structure as described in claim 2, characterized in that: The protective rods (4) between the upper sleeve plate (2) and the lower sleeve plate (3) are arranged in a circular array. The shock-absorbing rings (5) are equidistantly arranged on the protective rods (4) along the axis of the concrete pipe pile body (1). The inner diameter of the shock-absorbing rings (5) is greater than or equal to the outer diameter of the concrete pipe pile body (1).

4. A concrete pipe pile with an anti-collision structure as described in claim 3, characterized in that: The end face of the lower sleeve (3) is flush with the end face of the concrete pipe pile body (1), and the lower sleeve (3) is fitted on the lower end of the concrete pipe pile body (1).

5. A concrete pipe pile with an anti-collision structure as described in claim 4, characterized in that: The pre-embedded nuts (8) embedded on the lower end face of the lower sleeve plate (3) and the concrete pipe pile body (1) correspond to the installation holes on the pile support plate (7). The pile support plate (7) is provided with two sets of installation hole groups arranged in a circular array. The outer ring of the installation hole group corresponds to the lower sleeve plate (3), and the inner ring of the installation hole group corresponds to the pre-embedded nuts (8).

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