Prefabricated large-diameter tubular pile

Abstract

The utility model discloses a prefabricated assembly type large-diameter tubular pile, which belongs to the technical field of tubular piles and comprises a reinforced concrete pile body and a supporting mechanism positioned on the reinforced concrete pile body, a fixed cover is embedded and mounted on one side of the top wall of the reinforced concrete pile body, a knob is rotatably mounted on the fixed cover, an extension rod is coaxially connected below the knob, and the extension rod is fixedly connected with the top wall of the reinforced concrete pile body. Edge grooves are formed in the two sides of the outer wall of the reinforced concrete pile body respectively, a screw and a sliding rod are arranged in the two edge grooves respectively, an extension rod is coaxially connected with the screw, the two sides of the sliding rod are fixedly welded to the reinforced concrete pile body, sliding blocks are arranged in the two edge grooves respectively, one sliding block is arranged on the screw in a threaded and sleeving mode, and the other sliding block is arranged on the sliding rod in a threaded and sleeving mode. The other sliding block is arranged on the sliding rod in a sliding and sleeving mode. According to the prefabricated large-diameter tubular pile, the large-diameter tubular pile can be conveniently prefabricated, assembled and installed, time is saved, and meanwhile the trouble of using external large machines is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe piles, and particularly relates to precast assembled large-diameter pipe piles. Background Art

[0002] Reinforced concrete prestressed pipe piles, also known as precast concrete piles, refer to precast components processed in a precast component factory. After curing and reaching the design strength, they are transported to the construction site, driven into the soil by a pile driver, and then a pile cap beam (slab) foundation is poured on the top of the pile. The concrete grade used for reinforced concrete precast piles should not be lower than 300#. The diameter of the stressed steel bars of the pile should not be less than 12 mm, and generally 4 - 8 main steel bars are arranged. In order to resist hammering and penetrate the soil layer, the stirrups should be densified at the top and tip of the pile, and the main steel bars at the pile tip should be bent up and welded to a core rod. Reinforced concrete precast piles have the advantages of simple production, high strength, large rigidity, and can be made into various cross-sectional shapes.

[0003] In the process of implementing the present utility model, the inventor found that there are at least the following problems in this technology: For existing reinforced concrete prestressed pipe piles, such as the patent with the application number CN202223597293.5 - an assembled grouting precast pipe pile structure, by setting a reinforcing ring assembly with a new structure, the entire precast pipe pile structure not only improves the connection stability with soft geology through the reinforcing ring assembly, but also after the cement slurry flows out, it will connect and fuse with the reinforcing ring assembly to form a cement concrete structure with higher structural strength, improving the connection firmness between the precast pipe pile structure and the foundation; however, during installation, it needs to rely on external large machinery or be held by workers to maintain its stability. If large machinery is used, it is more inconvenient, and if manual labor is adopted, it is time - consuming and laborious.

[0004] Therefore, we propose precast assembled large - diameter pipe piles to solve the above problems. Content of the Utility Model

[0005] The main purpose of the present utility model is to provide precast assembled large - diameter pipe piles, which facilitate the prefabrication, assembly and installation of large - diameter pipe piles, save time and also eliminate the trouble of using external large machinery, and can effectively solve the problems in the background art.

[0006] In order to achieve the above purpose, the present utility model adopts the following technical solutions:

[0007] Prefabricated large-diameter pipe piles include a reinforced concrete pile body and a support mechanism located on the reinforced concrete pile body. A fixed cover is inlaid and installed on one side of the top wall of the reinforced concrete pile body, and a knob is rotatably installed on the fixed cover. A prolonging rod is coaxially connected below the knob. Edge grooves are respectively formed on both sides of the outer wall of the reinforced concrete pile body. A screw rod and a sliding rod are respectively arranged in the two edge grooves. The prolonging rod is coaxially connected with the screw rod. Both sides of the sliding rod are fixedly welded to the reinforced concrete pile body. A slider is arranged in each of the two edge grooves.

[0008] One of the sliders is threadedly sleeved on the screw rod, and the other slider is slidably sleeved on the sliding rod. The support mechanism includes a restraint ring fixedly welded to the outer sides of the two sliders and four inclined support plates located below the restraint ring. Second rotating shafts are rotatably installed on the four sides of the bottom wall of the restraint ring. The four inclined support plates are respectively fixedly sleeved on the four second rotating shafts. The four inclined support plates are all inclined. The four inclined support plates cooperate with each other to support the restraint ring and the reinforced concrete pile body inside it, so that the reinforced concrete pile body can be kept stable when being installed vertically and continuously sinking (sinking into the ground). The reinforced concrete pile body refers to a precast component prefabricated in a precast component processing factory, cured, transported to the construction site after reaching the design strength, driven into the soil by a pile driver, and then a bearing platform beam (plate) foundation is poured on the top of the pile.

[0009] As a preferred implementation scheme, a top groove is formed on the fixed cover, and the knob is installed on the bottom wall of the top groove; when in use, people need to reach into the top groove to rotate the knob. Since the knob is located in the top groove, the knob is protected by the top groove.

[0010] As a preferred implementation scheme, a first rotating shaft is rotatably installed on one side of the top wall of the fixed cover. The first rotating shaft is horizontally arranged, and a cover plate is fixedly sleeved on the first rotating shaft. The side of the cover plate away from the first rotating shaft is attached to the fixed cover; when the cover plate is kept in a horizontal state, it can just close the opening of the top groove, so as to protect the knob and reduce the probability of rust and other situations of the knob caused by external rain or sunlight exposure.

[0011] As a preferred implementation scheme, an inner groove isolated from the outside is also formed inside the reinforced concrete pile body. The prolonging rod is vertically arranged in the inner groove and is rotatably connected to the reinforced concrete pile body; the prolonging rod can rotate stably driven by the knob, thereby driving the screw rod to rotate, so that the restraint ring slides vertically along with the sliding rod.

[0012] As a preferred implementation scheme, both the screw rod and the sliding rod are vertically arranged and symmetric on both sides of the reinforced concrete pile body. Both sides of the screw rod are rotatably connected to the reinforced concrete pile body; the screw rod can rotate stably, thereby driving the slider to slide smoothly.

[0013] As a preferred embodiment, corner piles are integrally welded to the side of the four inclined support plates facing away from the restraint ring, and the side of the corner pile facing away from the inclined support plate is pointed; this enables the corner piles to be better inserted into the ground, facilitating the maintenance of the stability of the four inclined support plates, thus ensuring the structural stability of the restraint ring, and making it easier for the reinforced concrete pile body to be installed smoothly.

[0014] To sum up, the technical effects and advantages of the present utility model are as follows:

[0015] For this prefabricated and assembled large-diameter pipe pile, by arranging a restraint ring on the outer side of the reinforced concrete pile body, under the action of the restraint ring and the support mechanism below it, the reinforced concrete pile body remains structurally stable throughout the installation process. And since the restraint ring can slide along the reinforced concrete pile body, it adapts to the support effect when the reinforced concrete pile body sinks vertically, thus facilitating the prefabricated assembly installation of the large-diameter pipe pile, saving time and eliminating the trouble of using external large machinery.

[0016] For this prefabricated and assembled large-diameter pipe pile, turning the knob drives the extension rod to operate, which in turn drives the screw rod to operate, causing the restraint ring and the two sliders to slide vertically along the slide rod, driving the restraint ring and the four inclined support plates below it to move downward until the four corner piles are obliquely inserted into the ground. Then, the four inclined support plates are used to support the reinforced concrete pile body and the restraint ring, finally causing the restraint ring and the structures on it to continuously float relative to the reinforced concrete pile body, enabling the reinforced concrete pile body to be installed smoothly and conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of one side of the present utility model;

[0018] Figure 2 is a schematic structural diagram of the other side of the present utility model;

[0019] Figure 3 is a vertical sectional view of the present utility model;

[0020] Figure 4 is the present utility model Figure 3 the enlarged view of the structure at A in;

[0021] Figure 5 is the present utility model Figure 3 the enlarged view of the structure at B in.

[0022] In the figure: 1, reinforced concrete pile body; 2, fixed cover; 3, top groove; 4, knob; 5, first rotating shaft; 6, cover plate; 7, inner groove; 8, extension rod; 9, edge groove; 10, screw rod; 11, slide rod; 12, slider; 13, restraint ring; 14, installation groove; 15, second rotating shaft; 16, inclined support plate; 17, corner pile. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0024] Refer to Figures 1 - 5 , a prefabricated large-diameter pipe pile, including a reinforced concrete pile body 1 and a support mechanism located on the reinforced concrete pile body 1. A fixed cover 2 is inlaid and installed on one side of the top wall of the reinforced concrete pile body 1. A knob 4 is rotatably installed on the fixed cover 2. A top groove 3 is formed on the fixed cover 2. The knob 4 is installed on the bottom wall of the top groove 3. When in use, a person needs to reach into the top groove 3 to rotate the knob 4. Since the knob 4 is located in the top groove 3, the knob 4 is protected by the top groove 3. A first rotating shaft 5 is rotatably installed on one side of the top wall of the fixed cover 2. The first rotating shaft 5 is horizontally arranged, and a cover plate 6 is fixedly sleeved on the first rotating shaft 5. The side of the cover plate 6 away from the first rotating shaft 5 is attached to the fixed cover 2, so that when the cover plate 6 is in a horizontal state, it can just close the opening of the top groove 3, so as to protect the knob 4 and reduce the probability of the knob 4 rusting and other situations caused by external rain or sunlight exposure;

[0025] Among them, an extension rod 8 is coaxially connected below the knob 4. Edge grooves 9 are respectively formed on both sides of the outer wall of the reinforced concrete pile body 1. A screw rod 10 and a sliding rod 11 are respectively arranged in the two edge grooves 9. The extension rod 8 is coaxially connected with the screw rod 10. Both sides of the sliding rod 11 are fixedly welded to the reinforced concrete pile body 1. An inner groove 7 isolated from the outside is also formed inside the reinforced concrete pile body 1. The extension rod 8 is vertically arranged in the inner groove 7 and is rotatably connected to the reinforced concrete pile body 1, so that the extension rod 8 can operate stably under the drive of the knob 4, thereby driving the screw rod 10 to operate, so that the restraint ring 13 slides vertically along with the sliding rod 11. The screw rod 10 and the sliding rod 11 are both vertically arranged and symmetric on both sides of the reinforced concrete pile body 1. Both sides of the screw rod 10 are rotatably connected to the reinforced concrete pile body 1, so that the screw rod 10 can operate stably, thereby driving the slider 12 to slide smoothly. A slider 12 is arranged in each of the two edge grooves 9;

[0026] One of the sliders 12 is threadedly sleeved on the screw rod 10, and the other slider 12 is slidably sleeved on the slide rod 11. The support mechanism includes a restraint ring 13 fixedly welded to the outer sides of the two sliders 12 and four inclined support plates 16 located below the restraint ring 13. Second rotating shafts 15 are rotatably installed on the four sides of the bottom wall of the restraint ring 13. Actually, installation grooves 14 are provided on the four sides of the bottom wall of the restraint ring 13, and the four second rotating shafts 15 are respectively installed in the four installation grooves 14. The four inclined support plates 16 are respectively fixedly sleeved on the four second rotating shafts 15. The four inclined support plates 16 are all inclined, so that the four inclined support plates 16 cooperate together to support the restraint ring 13 and the reinforced concrete pile body 1 inside it, so that the reinforced concrete pile body 1 can be kept stable when being installed along the vertical direction and continuously sinking (sinking into the ground). The reinforced concrete pile body 1 refers to a precast component precast in a precast component processing factory, cured, transported to the construction site after reaching the design strength, driven into the soil by a pile driver, and then a bearing platform beam (slab) foundation is poured on the top of the pile. On the side of the four inclined support plates 16 facing away from the restraint ring 13, corner piles 17 are integrally welded. The side of the corner pile 17 facing away from the inclined support plate 16 is pointed, so that the corner pile 17 can be better inserted into the soil to facilitate maintaining the stability of the four inclined support plates 16, thus ensuring the structural stability of the restraint ring 13, so that the installation of the reinforced concrete pile body 1 can be more smooth.

[0027] This precast assembled large-diameter pipe pile: This pipe pile and the support mechanism on its outer side are applicable for use when installing the reinforced concrete pile body 1 along the vertical direction. During use, first insert the bottom of the reinforced concrete pile body 1 into the soil or place it on a horizontal plane to keep the reinforced concrete pile body 1 vertical. Subsequently, manually operate the four inclined support plates 16 to flip the four inclined support plates 16 so that they rotate to an angle that meets the actual use requirements along with the second rotating shafts 15 respectively connected thereto. Then, other personnel reach into the top groove 3 and rotate the knob 4 to drive the extension rod 8 to operate, thereby driving the screw rod 10 to operate, so that the restraint ring 13 and the two sliders 12 slide vertically along the slide rod 11, driving the restraint ring 13 and the four inclined support plates 16 below it to move downward until the four corner piles 17 are obliquely inserted into the soil, so as to support the reinforced concrete pile body 1 and the restraint ring 13 by the four inclined support plates 16. Finally, while gradually sinking the reinforced concrete pile body 1 into the soil, rotate the knob 4 on the other side so that the restraint ring 13 and the structure thereon continuously float relative to the reinforced concrete pile body 1 (actually, the heights of the restraint ring 13 and the four inclined support plates 16 remain unchanged after stabilization), thus completing the installation of the reinforced concrete pile body 1.

[0028] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. A prefabricated large-diameter pipe pile, comprising a reinforced concrete pile body (1) and a supporting mechanism located on the reinforced concrete pile body (1), characterized in that: A fixing cover (2) is embedded and installed on one side of the top wall of the reinforced concrete pile body (1), and a knob (4) is rotatably installed on the fixing cover (2), wherein an extension rod (8) is coaxially connected to the lower side of the knob (4), and edge grooves (9) are respectively formed on both sides of the outer wall of the reinforced concrete pile body (1), and a screw rod (10) and a slide rod (11) are respectively arranged in the two edge grooves (9), wherein the extension rod (8) is coaxially connected to the screw rod (10), and both sides of the slide rod (11) are welded and fixed to the reinforced concrete pile body (1), and a sliding block (12) is respectively arranged in the two edge grooves (9); One of the sliders (12) is threadedly mounted on the screw rod (10), and the other slider (12) is slidably mounted on the slide rod (11). The support mechanism includes a restraining ring (13) fixedly welded to the outer sides of the two sliders (12) and four inclined support plates (16) located below the restraining ring (13). The four sides of the bottom wall of the restraining ring (13) are rotatably mounted with a second rotating shaft (15). The four inclined support plates (16) are respectively fixedly mounted on the four second rotating shafts (15), and the four inclined support plates (16) are all designed to be inclined.

2. The prefabricated large diameter pipe pile according to claim 1, characterized in that: A top groove (3) is formed on the fixed cover (2), and the knob (4) is mounted on the bottom wall of the top groove (3).

3. The prefabricated large-diameter pipe pile according to claim 2, characterized in that: A first rotating shaft (5) is rotatably mounted on one side of the top wall of the fixed cover (2), wherein the first rotating shaft (5) is arranged horizontally, and a cover plate (6) is fixedly sleeved on the first rotating shaft (5), and a side of the cover plate (6) away from the first rotating shaft (5) is in contact with the fixed cover (2).

4. The prefabricated large diameter pipe pile according to claim 1, characterized in that: The reinforced concrete pile body (1) is also provided with an inner groove (7) isolated from the outside, wherein the extension rod (8) is vertically arranged in the inner groove (7) and is rotatably connected to the reinforced concrete pile body (1).

5. The prefabricated large diameter pipe pile according to claim 1, characterized in that: The screw rod (10) and the sliding rod (11) are both vertically arranged and symmetrically arranged on both sides of the reinforced concrete pile body (1), and both sides of the screw rod (10) are rotationally connected to the reinforced concrete pile body (1).

6. The prefabricated large diameter pipe pile according to claim 1, characterized in that: The four inclined support plates (16) are all integrally welded with an inserting angle pile (17) on one side facing away from the restraining ring (13), wherein the inserting angle pile (17) has a pointed head on the side facing away from the inclined support plate (16).

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