Pile tip anti-blocking device for prefabricated pipe pile

Abstract

The utility model provides a pile tip anti-blocking device for a prefabricated pipe pile. The pile tip anti-blocking device comprises a connecting structure, a sealing structure, a first pipe pile bottom plate, a second pipe pile bottom plate, a pile tip structure, a plurality of drainage structures and a plurality of sealing and pressing structures. The connecting structure is arranged on the upper end face of the first tubular pile bottom plate, the pile tip structure is arranged on the lower end face of the second tubular pile bottom plate, and the first tubular pile bottom plate is detachably connected with the second tubular pile bottom plate; the multiple drainage structures are circumferentially and evenly arranged on the outer wall of the pile tip structure, and each drainage structure is fixedly connected with the pile tip structure. According to the pile tip anti-blocking device for the prefabricated pipe pile, the problem that a soil layer applies large resistance to a pile tip due to the fact that the pile tip is unreasonable in design in the related technology is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe piles, in particular to a pile tip anti-blocking device for prefabricated pipe piles. Background Art

[0002] The pile tip of a prefabricated pipe pile usually has a pointed or blunt cone shape, which can effectively guide the pile body into the soil layer smoothly and reduce the resistance during the pile driving process. After the pile tip penetrates into the bearing layer, the diffusion effect of the tip can increase the bearing area of ​​the pile end and improve the end bearing capacity of the pile foundation. During the pile driving process, a large amount of soil or silt may adhere to the outside of the pile tip. These attachments will increase the surface friction of the pile, thereby increasing the difficulty of pile driving, especially in soft soil layers such as clay or silt. Due to the unreasonable pile tip design in the related art, the soil layer exerts a large resistance on the pile tip, which affects the sinking speed and direction of the pipe pile. Summary of the Invention

[0003] In view of this, the present invention aims to solve one of the related technical problems at least to a certain extent.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0005] A pile tip anti-blocking device for prefabricated pipe piles, comprising a connecting structure, a sealing structure, a first pipe pile bottom plate, a second pipe pile bottom plate, a pile tip structure, multiple drainage structures, and multiple sealing and pressing structures;

[0006] The connecting structure is provided on the upper end surface of the first pipe pile bottom plate, and the pile tip structure is provided on the lower end surface of the second pipe pile bottom plate, and the first pipe pile bottom plate and the second pipe pile bottom plate are detachably connected;

[0007] A plurality of drainage structures are evenly arranged on the outer wall of the pile tip structure, and each drainage structure is fixedly connected to the pile tip structure;

[0008] The connecting structure is used to connect the pile body, and the sealing structure is sleeved on the outside of the connecting structure, and the sealing structure is used to seal the connection position between the connecting structure and the pile body;

[0009] A plurality of the sealing and pressing structures are evenly arranged on the circumference of the outer side of the sealing structure, and the bottom of each of the sealing and pressing structures is slidably connected to the first pipe pile bottom plate.

[0010] Furthermore, the pile tip structure includes a pile tip base and a tip portion, the pile tip base is a conical structure, the upper end surface of the pile tip base is fixedly connected to the second pipe pile bottom plate, and the bottom of the pile tip base is fixedly connected to the tip portion.

[0011] Furthermore, the tip portion includes a pile tip rod and a plurality of reinforcing ribs, the top of the pile tip rod is fixedly connected to the pile tip base, and the plurality of reinforcing ribs are evenly arranged around the circumference at the connection position between the pile tip rod and the pile tip base.

[0012] Furthermore, the drainage structure includes a drainage groove, a first pressure relief groove and a second pressure relief groove. The drainage groove is arranged on the outer wall of the pile tip base, the bottom of the drainage groove is opposite to the tip, and the top of the drainage groove is opposite to the first pressure relief groove and the second pressure relief groove. The first pressure relief groove is arranged on the first pipe pile bottom plate, and the second pressure relief groove is arranged on the second pipe pile bottom plate. The first pressure relief groove and the second pressure relief groove overlap, and the first pressure relief groove and the second pressure relief groove are opposite to the sealing and clamping structure.

[0013] Furthermore, the drainage groove is a spiral structure.

[0014] Furthermore, the drainage groove is a strip-shaped structure.

[0015] Furthermore, the sealing and pressing structure includes a curved pressure plate and a sliding structure. The bottom of the curved pressure plate is connected to the first pipe pile bottom plate through the sliding structure. The curved pressure plate is arranged on the outside of the sealing structure.

[0016] Furthermore, the sealing structure includes a sealing rubber sleeve, which is arranged between the connecting structure and the curved pressure plate, and a flange is provided on the top of the sealing rubber sleeve.

[0017] Compared with the prior art, the pile tip anti-blocking device for prefabricated pipe piles described in the present invention has the following advantages:

[0018] 1. Drainage structures, especially spiral or strip-shaped drainage troughs, help guide soil, mud, and other impurities away from the pile tip surface, preventing accumulation and blockage during piling, and improving construction smoothness. They can reduce the soil's direct resistance to the pile tip, making it easier for the pile tip to penetrate the ground, thereby improving piling efficiency and saving construction time and costs.

[0019] 2. The seal compression structure ensures a tight fit between the seal and the contact surface, effectively preventing leakage. This provides stable pressure distribution, reducing wear caused by friction and extending the life of the seal. The soil layer, after passing through the pressure relief groove, acts directly on the curved pressure plate, providing additional compression, ensuring a tighter fit between the seal and the contact surface, thereby improving the overall sealing effect. The soil layer acting on the curved pressure plate through the pressure relief groove makes the entire sealing structure more stable under high-pressure environments, preventing seal failure caused by uneven pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of a pile tip anti-blocking device for prefabricated pipe piles according to an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the drainage structure according to an embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the sealing and pressing structure according to an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the connection structure described in an embodiment of the present utility model.

[0025] Description of reference numerals:

[0026] 101. Sealing structure; 201. Curved pressure plate; 202. Sliding structure; 301. First pipe pile bottom plate; 302. Second pipe pile bottom plate; 303. First pressure relief trough; 401. Pile tip base; 501. Drainage trough; 601. Pile tip rod; 602. Reinforcement rib; 701. Connection structure. DETAILED DESCRIPTION

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0030] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0031] A pile tip anti-blocking device for prefabricated pipe piles, such as Figure 1 As shown, it includes a connecting structure 701, a sealing structure 101, a first pipe pile bottom plate 301, a second pipe pile bottom plate 302, a pile tip structure, multiple drainage structures and multiple sealing and pressing structures; the connecting structure 701 is arranged on the upper end surface of the first pipe pile bottom plate 301, and the pile tip structure is arranged on the lower end surface of the second pipe pile bottom plate 302. The first pipe pile bottom plate 301 and the second pipe pile bottom plate 302 are detachably connected. In this embodiment, they are connected by bolts.

[0032] Multiple drainage structures are evenly arranged around the outer wall of the pile tip structure, and each drainage structure is fixedly connected to the pile tip structure. The drainage structure includes a drainage groove 501, a first pressure relief groove 303, and a second pressure relief groove. The drainage groove 501 is arranged on the outer wall of the pile tip base 401. The bottom of the drainage groove 501 faces the tip, and the top of the drainage groove 501 faces the first pressure relief groove 303 and the second pressure relief groove. The first pressure relief groove 303 is arranged on the first pipe pile bottom plate 301, and the second pressure relief groove is arranged on the second pipe pile bottom plate 302. The first pressure relief groove 303 and the second pressure relief groove overlap, and the first pressure relief groove 303 and the second pressure relief groove face the sealing and pressing structure. The drainage groove 501 is a spiral structure. The drainage structure, especially the spiral or strip-shaped drainage groove 501, helps to guide impurities such as soil and mud away from the pile tip surface, preventing them from accumulating and clogging during the pile driving process, thereby improving the smoothness of construction. It can reduce the frontal resistance of the soil layer to the pile tip, making it easier for the pile tip to penetrate the stratum, thereby improving the piling efficiency and saving construction time and cost.

[0033] The connecting structure 701 is used to connect to the pile body. The sealing structure 101 is sleeved outside the connecting structure 701 and is used to seal the connection between the connecting structure 701 and the pile body. In this example, the connecting structure 701 is a threaded rod. The sealing structure 101 includes a sealing rubber sleeve, which is positioned between the connecting structure 701 and the curved pressure plate 201. The top of the sealing rubber sleeve is provided with a flange.

[0034] Multiple sealing and compression structures are evenly arranged around the outside of the sealing structure 101, with the bottom of each sealing and compression structure slidably connected to the first pile base plate 301. The sealing and compression structure includes a curved pressure plate 201 and a sliding structure 202. The bottom of the curved pressure plate 201 is connected to the first pile base plate 301 via the sliding structure 202, and the curved pressure plate 201 is located outside the sealing structure 101. The sliding structure 202 includes a T-shaped chute and a T-shaped slider. The T-shaped slider is connected to the bottom of the curved pressure plate 201, and the T-shaped slider is located on the upper end surface of the bottom of the first pile. The T-shaped chute and the T-shaped slider slidably cooperate. The sealing and compression structure ensures the seal fits tightly with the contact surface, effectively preventing leakage. Because it provides stable pressure distribution, it reduces wear caused by friction and increases the life of the seal. After passing through the pressure relief groove, the soil layer directly acts on the curved pressure plate 201, providing additional compression force, ensuring a tighter fit between the seal and the contact surface, thereby improving the overall sealing effect. The soil layer acts on the curved pressure plate 201 through the pressure relief groove, making the entire sealing structure 101 more stable under high pressure environment, thereby avoiding sealing failure caused by uneven pressure.

[0035] The pile tip structure includes a pile tip base 401 and a tip portion. The pile tip base 401 is conical in shape, with its upper end surface fixedly connected to the second tubular pile base 302, and its bottom fixedly connected to the tip portion. The tip portion includes a pile tip rod 601 and multiple reinforcing ribs 602. The top of the pile tip rod 601 is fixedly connected to the pile tip base 401, and multiple reinforcing ribs 602 are evenly arranged around the circumference of the pile tip rod 601 where it connects to the pile tip base 401.

[0036] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pile tip anti-blocking device for prefabricated pipe piles, characterized by: It comprises a connection structure (701), a sealing structure (101), a first pipe pile bottom plate (301), a second pipe pile bottom plate (302), a pile tip structure, a plurality of drainage structures and a plurality of sealing and pressing structures; The connection structure (701) is arranged on the upper end surface of the first pipe pile bottom plate (301), and the pile tip structure is arranged on the lower end surface of the second pipe pile bottom plate (302). The first pipe pile bottom plate (301) and the second pipe pile bottom plate (302) are detachably connected. A plurality of drainage structures are evenly arranged on the outer wall of the pile tip structure, and each drainage structure is fixedly connected to the pile tip structure; The connecting structure (701) is used to connect the pile body, the sealing structure (101) is sleeved on the outside of the connecting structure (701), and the sealing structure (101) is used to seal the position where the connecting structure (701) is connected to the pile body; a plurality of sealing and pressing structures are evenly arranged on the circumference of the outside of the sealing structure (101), and the bottom of each sealing and pressing structure is slidably connected to the first pipe pile bottom plate (301).

2. The pile tip anti-blocking device for prefabricated pipe piles according to claim 1, characterized in that: The pile tip structure comprises a pile tip base (401) and a tip portion. The pile tip base (401) is a conical structure. The upper end surface of the pile tip base (401) is fixedly connected to the second pipe pile bottom plate (302), and the bottom of the pile tip base (401) is fixedly connected to the tip portion.

3. The pile tip anti-blocking device for prefabricated pipe piles according to claim 2, characterized in that: The tip portion includes a pile tip rod (601) and a plurality of reinforcing ribs (602). The top of the pile tip rod (601) is fixedly connected to the pile tip base (401). The plurality of reinforcing ribs (602) are evenly arranged around the circumference at the connection position between the pile tip rod (601) and the pile tip base (401).

4. The pile tip anti-blocking device for prefabricated pipe piles according to claim 2, characterized in that: The drainage structure comprises a drainage groove (501), a first pressure relief groove (303) and a second pressure relief groove; the drainage groove (501) is arranged on the outer wall of the pile tip base (401); the bottom of the drainage groove (501) is opposite to the tip; the top of the drainage groove (501) is opposite to the first pressure relief groove (303) and the second pressure relief groove; the first pressure relief groove (303) is arranged on the first pipe pile bottom plate (301); the second pressure relief groove is arranged on the second pipe pile bottom plate (302); the first pressure relief groove (303) and the second pressure relief groove overlap; the first pressure relief groove (303) and the second pressure relief groove are opposite to the sealing and pressing structure.

5. The pile tip anti-blocking device for prefabricated pipe piles according to claim 4, characterized in that: The drainage groove (501) is a spiral structure.

6. The pile tip anti-blocking device for prefabricated pipe piles according to claim 4, characterized in that: The drainage groove (501) is a strip-shaped structure.

7. A pile tip anti-blocking device for prefabricated pipe piles according to any one of claims 1 to 6, characterized in that: The sealing and pressing structure comprises a curved pressure plate (201) and a sliding structure (202); the bottom of the curved pressure plate (201) is connected to the first pipe pile bottom plate (301) via the sliding structure (202); and the curved pressure plate (201) is arranged outside the sealing structure (101).

8. The pile tip anti-blocking device for prefabricated pipe piles according to claim 7, characterized in that: The sealing structure (101) comprises a sealing rubber sleeve, which is arranged between the connection structure (701) and the curved pressure plate (201), and a flange is provided on the top of the sealing rubber sleeve.

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