Concrete prefabricated uplift pipe pile

Abstract

The utility model relates to the technical field of uplift pipe pile, disclose a kind of prefabricated concrete uplift pipe pile, including uplift assembly, uplift assembly is used to promote uplift effect, uplift assembly includes pipe pile main body, plugboard, transmission shaft and movable rod, installation space is opened in pipe pile main body, transmission shaft is rotatably connected with the inner wall of pipe pile main body, plugboard and movable rod are all around set on pipe pile main body, movable rod and transmission shaft transmission setting, plugboard and corresponding movable rod fixed connection, the stable contraction and expansion of plugboard are realized by the rotation of transmission shaft, plugboard and soil are fully inserted, strengthen its and the force between soil layer, improve the resistance to axial tension, the insertion action of plugboard is realized inside pipe pile main body, avoid the operation of soil to the internal component of this device interference, the device is provided with two groups of tension components by two groups of common setting, and unfold board and plugboard jointly provide enough uplift force, realize the stable use of the device.

Description

Technical Field

[0001] This utility model belongs to the field of anti-uplift pipe pile technology, specifically, it relates to a precast concrete anti-uplift pipe pile. Background Technology

[0002] Precast pull-out pipe piles are suitable for projects requiring high bearing capacity and pull-out resistance. They are widely used in the construction of anchor pile foundations for underground building structures, coastal buildings, and other projects. Their main working mechanism is to resist axial tensile force by relying on the friction between the pile body and the soil layer.

[0003] A document with publication number (CN222083532U) discloses a precast concrete anti-uplift pipe pile, relating to the field of anti-uplift pipe pile technology. It includes an anti-uplift pile, anti-uplift reinforcement members, and a pressing member. The anti-uplift reinforcement members are fixedly installed on the surface of the anti-uplift pile, and there are multiple sets of these reinforcement members, which are arranged equidistantly along the axial direction of the pile. The present invention pushes the pressing member downwards, causing it to slide inside a groove and contact a push plate cylinder, thus rotating the push plate cylinder. A push plate screw located inside the push plate cylinder rotates synchronously with the cylinder. Since one end of the push plate screw is threaded to one side of the push plate cylinder, the rotating push plate screw moves horizontally in that direction, pushing an auxiliary insert plate connected to it to slide inside the groove until the auxiliary insert plate detaches from the groove and inserts into the soil. After the anti-uplift pile is inserted into the ground, it strengthens the interaction force between the pile and the soil layer, improving its resistance to axial tensile forces.

[0004] In actual use, the solution mentioned in the above document requires pushing the clamping plate. However, the clamping plate is exposed. When burying the prefabricated pull-out tubular structure in the soil, it is not necessary to unfold the insert plate from the device. After the prefabricated pull-out tubular structure is buried in the soil, the outer wall of the prefabricated pull-out tubular structure is fully buried by the soil before the clamping plate can be pushed to open it. During this process, the movement of the clamping plate is restricted by the soil, which affects the use of the device.

[0005] In view of this, this utility model is hereby proposed. Utility Model Content

[0006] To solve the technical problem of prefabricated anti-pull-out tubular structures, the basic concept of the technical solution adopted in this utility model is as follows: A precast concrete pull-out resistant pipe pile includes a pull-out resistant component, which is used to improve the pull-out resistance effect. The pull-out resistant component includes a pipe pile body, an insert plate, a drive shaft, and a movable rod. An installation space is provided inside the pipe pile body. The drive shaft is rotatably connected to the inner wall of the pipe pile body. The insert plate and the movable rod are both arranged around the pipe pile body. The movable rod is driven by the drive shaft. The insert plate is fixedly connected to the corresponding movable rod.

[0007] In a preferred embodiment of this utility model, transmission rings are symmetrically arranged on the transmission shaft, each transmission ring is fixedly connected to the transmission shaft, and each transmission ring is rotatably connected to the inner wall of the pipe pile body.

[0008] In a preferred embodiment of this utility model, each of the transmission rings is provided with a transmission groove, and a corresponding movable rod is movably connected in each transmission groove.

[0009] In a preferred embodiment of this utility model, each of the insert plates penetrates the main body of the pipe pile, and each insert plate is fixedly connected with a limiting shaft, with the limiting shaft and the transmission shaft being restricted from each other.

[0010] In a preferred embodiment of the present invention, the transmission shaft is provided with an array of limiting grooves, and the other end of each limiting shaft is movably connected to the limiting groove.

[0011] In a preferred embodiment of this utility model, a first fixing ring and a second fixing ring are respectively provided at the bottom of the pipe pile body. Both the first fixing ring and the second fixing ring are fixedly connected to the pipe pile body. A movable ring is provided between the first fixing ring and the second fixing ring, and the movable ring is slidably connected to the pipe pile body.

[0012] In a preferred embodiment of this utility model, a connecting shaft is arranged around the second fixing ring, each connecting shaft is fixedly connected to the second fixing ring, and each connecting shaft is rotatably connected to an unfolding plate.

[0013] In a preferred embodiment of the present invention, each of the unfolding plates is fixedly connected to a second connecting end at its upper end, the second connecting end is rotatably connected to a connecting rod, the other end of the connecting rod is rotatably connected to a first connecting end, and the first connecting end is fixedly connected to a movable ring.

[0014] Compared with the prior art, the present invention has the following advantages: 1. This type of precast concrete anti-uplift pipe pile achieves stable contraction and expansion of the insert plate through the rotation of the drive shaft, fully inserting the insert plate into the soil, strengthening the interaction force between the insert plate and the soil layer, and improving the resistance to axial tensile force. By realizing the insertion action of the insert plate inside the pipe pile body, the interference of the soil with the operation of the internal components of this device is avoided.

[0015] 2. In this type of precast concrete pull-out resistant pipe pile, the unfolded plate around the pipe pile body closes under the action of soil pressure, ensuring that no large resistance is generated to the pipe pile body during construction. When the pipe pile body is subjected to an upward pulling force, the unfolded plate set around the pipe pile body opens due to the pressure of the soil, the movable ring slides upward, and the connecting rod provides a certain pulling force to the unfolded plate, thus providing a large pull-out resistance to the pipe pile body.

[0016] 3. This type of precast concrete pull-out pipe pile, through two sets of jointly arranged tensile components, and the unfolding plate and the inserting plate together provide sufficient pull-out force to achieve stable use of the device.

[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0018] In the attached diagram: Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a schematic diagram of the structure between the unfolding plate and the main body of the pipe pile of this utility model; Figure 3 This is a schematic diagram showing the structural breakdown between the fixing rings of this utility model; Figure 4 This is a schematic diagram of the structure between the insert plate and the drive shaft of this utility model; Figure 5 This is a schematic diagram of the structure on the transmission shaft of this utility model.

[0019] In the diagram: 1. Pipe pile body; 2. Unfolding plate; 21. First fixing ring; 22. Second fixing ring; 23. Movable ring; 24. Connecting shaft; 25. First connecting end; 26. Connecting rod; 27. Second connecting end; 3. Insert plate; 31. Limiting shaft; 4. Transmission shaft; 41. Transmission ring; 42. Transmission groove; 43. Movable rod; 44. Limiting groove. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model.

[0021] Please see Figure 1-5 A precast concrete pull-out resistant pipe pile includes a pull-out resistant component, which is used to improve the pull-out resistance effect. The pull-out resistant component includes a pipe pile body 1, an insert plate 3, a drive shaft 4, and a movable rod 43. An installation space is provided inside the pipe pile body 1. The drive shaft 4 is rotatably connected to the inner wall of the pipe pile body 1. The insert plate 3 and the movable rod 43 are both arranged around the pipe pile body 1. The movable rod 43 is driven by the drive shaft 4. The insert plate 3 is fixedly connected to the corresponding movable rod 43. Before installing the main body 1 of the pipe pile, the drive shaft 4 is manually rotated. The drive shaft 4 changes the position of the movable rod 43 through the transmission of components inside the main body 1, causing the movable rod 43 to retract toward the drive shaft 4. The movable rod 43 moves and drives the insertion plate 3. The insertion plate 3 is retracted to a position flush with the outer wall of the main body 1. After the main body 1 of the pipe pile is buried, the drive shaft 4 is manually rotated. The drive shaft 4 pushes the movable rod 43 and the insertion plate 3 outward through transmission. The insertion plate 3 is inserted into the soil. After the main body 1 of the pipe pile is inserted into the ground, the interaction force between it and the soil layer is strengthened, and the resistance to axial tensile force is improved. By realizing the insertion action of the insertion plate 3 inside the main body 1 of the pipe pile, the soil is prevented from interfering with the operation of the internal components of this device.

[0022] The transmission shaft 4 is symmetrically provided with transmission rings 41, each transmission ring 41 is fixedly connected to the transmission shaft 4, each transmission ring 41 is rotatably connected to the inner wall of the pipe pile body 1, each transmission ring 41 is provided with a transmission groove 42, each transmission groove 42 is movably connected with a corresponding movable rod 43, each insert plate 3 penetrates the pipe pile body 1, each insert plate 3 is fixedly connected with a limiting shaft 31, the limiting shaft 31 is limited to the transmission shaft 4, the transmission shaft 4 is provided with an array of limiting grooves 44, and the other end of each limiting shaft 31 is movably connected to the limiting groove 44; The transmission shaft 4 is manually rotated, which drives the transmission ring 41. The transmission ring 41, in turn, drives the movable rod 43 through the transmission groove 42. The movable rod 43 contracts or expands as the transmission ring 41 rotates. The movable rod 43 drives the insertion plate 3, which in turn drives the limiting shaft 31 to move within the limiting groove 44. The limiting groove 44 laterally restricts the limiting shaft 31, allowing the insertion plate 3 to slide smoothly through the limiting shaft 31 at the penetration position on the wall of the pipe pile body 1. The rotation of the transmission shaft 4 enables the stable contraction and expansion of the insertion plate 3, fully inserting it into the soil, strengthening the interaction between it and the soil layer, and improving resistance to axial tension. By implementing the insertion action of the insertion plate 3 inside the pipe pile body 1, interference from the soil with the operation of the internal components of this device is avoided.

[0023] The bottom of the pipe pile body 1 is provided with a first fixing ring 21 and a second fixing ring 22, both of which are fixedly connected to the pipe pile body 1. A movable ring 23 is provided between the first fixing ring 21 and the second fixing ring 22, and the movable ring 23 is slidably connected to the pipe pile body 1.

[0024] The second fixing ring 22 is surrounded by connecting shafts 24, each connecting shaft 24 is fixedly connected to the second fixing ring 22, and each connecting shaft 24 is rotatably connected to the unfolding plate 2.

[0025] Each of the unfolding plates 2 has a second connecting end 27 fixedly connected to its upper end. The second connecting end 27 is rotatably connected to a connecting rod 26. The other end of the connecting rod 26 is rotatably connected to a first connecting end 25. The first connecting end 25 is fixedly connected to the movable ring 23. Before burying the main body 1 of the pipe pile into the soil, the unfolding plate 2 is first retracted towards the main body 1 of the pipe pile, and then the main body 1 of the pipe pile is buried into the soil. Then the soil is fully filled around the main body 1 of the pipe pile and the soil around the main body 1 of the pipe pile is compacted. The unfolding plate 2 around the main body 1 of the pipe pile closes under the action of soil pressure, ensuring that no large resistance is generated to the main body 1 of the pipe pile during construction. When the main body 1 of the pipe pile is subjected to an upward pulling force, the unfolding plate 2 around the main body 1 of the pipe pile opens due to the pressure of the soil, the movable ring 23 slides upward, and the connecting rod 26 provides a certain pulling force to the unfolding plate 2, providing a large pull-out force to the main body 1 of the pipe pile. The lifting and lowering of the movable ring 23 and the pressure of the soil are used to open and close the unfolding plate 2 around the main body of the pipe pile 1. When the main body of the pipe pile 1 moves upward, the connecting rod 26 provides tension to the unfolding plate 2. The unfolding plate 2 is subjected to the reaction force of the soil, thereby providing a large pull-out force to the main body of the pipe pile 1. The opening and closing of the unfolding plate 2 is controlled by the connecting shaft 24 as a fulcrum, and the connecting rod 26 drives the unfolding plate 2 to move through the first connecting end 25 and the second connecting end 27.

[0026] Working principle: Before installing the main body 1 of the pipe pile, the drive shaft 4 is manually rotated. The drive shaft 4 changes the position of the movable rod 43 through the transmission of components inside the main body 1, causing the movable rod 43 to retract towards the drive shaft 4. The movable rod 43 moves and drives the insertion plate 3, which is retracted to a position flush with the outer wall of the main body 1. After the main body 1 of the pipe pile is buried, the drive shaft 4 is manually rotated. The drive shaft 4 pushes the movable rod 43 and the insertion plate 3 outward through transmission. The insertion plate 3 is inserted into the soil. After the main body 1 of the pipe pile is inserted into the ground, the interaction force between it and the soil layer is strengthened, and the resistance to axial tensile force is improved. The insertion action of the insertion plate 3 is carried out inside the main body 1 of the pipe pile. To prevent soil interference with the operation of the internal components of the device, the drive shaft 4 is manually rotated. During rotation, the drive shaft 4 drives the drive ring 41, which in turn drives the movable rod 43 via the drive groove 42. The movable rod 43 contracts or expands during the rotation of the drive ring 41, driving the insertion plate 3. The insertion plate 3 then moves the limiting shaft 31 within the limiting groove 44. The limiting groove 44 laterally restricts the limiting shaft 31, allowing the insertion plate 3 to slide smoothly through the wall of the pipe pile body 1. The rotation of the drive shaft 4 enables the stable contraction and expansion of the insertion plate 3, ensuring its full insertion into the soil. This strengthens the interaction between the pipe pile and the soil layer, improving resistance to axial tensile forces. The insertion of the insert plate 3 is achieved inside the pipe pile body 1, preventing soil interference with the operation of the internal components. Before burying the pipe pile body 1 in the soil, the unfolding plate 2 retracts towards the pipe pile body 1, then the pipe pile body 1 is buried in the soil. Soil is then fully filled around the pipe pile body 1 and compacted. The unfolding plate 2 around the pipe pile body 1 closes under soil pressure, ensuring that no significant resistance is generated to the pipe pile body 1 during construction. When the pipe pile body 1 is subjected to upward tensile force, the plate 2 is positioned within the pipe pile body 1. The unfolding plate 2 around the pile body 1 opens due to the pressure of the soil, the movable ring 23 slides upward, and the connecting rod 26 provides a certain tension to the unfolding plate 2, providing a large pull-out force to the pile body 1; through the lifting and lowering of the movable ring 23 and the pressure of the soil, the unfolding plate 2 around the pile body 1 is opened and closed. When the pile body 1 moves upward, the connecting rod 26 provides tension to the unfolding plate 2, and the unfolding plate 2 is subjected to the reaction force of the soil, thus providing a large pull-out force to the pile body 1; the opening and closing of the unfolding plate 2 is supported by the connecting shaft 24 as a fulcrum, and the connecting rod 26 drives the movement of the unfolding plate 2 through the first connecting end 25 and the second connecting end 27.

[0027] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A precast concrete pull-out resistant pipe pile, characterized in that, include: The pull-out resistance component is used to improve the pull-out resistance effect. The pull-out resistance component includes the pipe pile body (1), the insert plate (3), the drive shaft (4) and the movable rod (43). The pipe pile body (1) has an installation space. The drive shaft (4) is rotatably connected to the inner wall of the pipe pile body (1). The insert plate (3) and the movable rod (43) are both arranged around the pipe pile body (1). The movable rod (43) is connected to the drive shaft (4) for transmission. The insert plate (3) is fixedly connected to the corresponding movable rod (43).

2. The precast concrete pull-out pipe pile according to claim 1, characterized in that, The drive shaft (4) is symmetrically provided with drive rings (41), each drive ring (41) is fixedly connected to the drive shaft (4), and each drive ring (41) is rotatably connected to the inner wall of the pipe pile body (1).

3. The precast concrete pull-out resistant pipe pile according to claim 2, characterized in that, Each of the transmission rings (41) is provided with a transmission groove (42) around it, and a corresponding movable rod (43) is movably connected in each transmission groove (42).

4. The precast concrete pull-out pipe pile according to claim 1, characterized in that, Each of the insert plates (3) penetrates the main body (1) of the pipe pile, and each insert plate (3) is fixedly connected with a limiting shaft (31), and the limiting shaft (31) and the transmission shaft (4) are restricted from each other.

5. The precast concrete pull-out pipe pile according to claim 4, characterized in that, The drive shaft (4) is provided with a series of limiting grooves (44), and the other end of each limiting shaft (31) is movably connected to the limiting groove (44).

6. The precast concrete pull-out pipe pile according to claim 1, characterized in that, The bottom of the pipe pile body (1) is provided with a first fixing ring (21) and a second fixing ring (22). The first fixing ring (21) and the second fixing ring (22) are fixedly connected to the pipe pile body (1). A movable ring (23) is provided between the first fixing ring (21) and the second fixing ring (22). The movable ring (23) is slidably connected to the pipe pile body (1).

7. The precast concrete pull-out pipe pile according to claim 6, characterized in that, A connecting shaft (24) is arranged around the second fixing ring (22). Each connecting shaft (24) is fixedly connected to the second fixing ring (22), and each connecting shaft (24) is rotatably connected to an unfolding plate (2).

8. The precast concrete pull-out resistant pipe pile according to claim 7, characterized in that, Each of the unfolding plates (2) is fixedly connected to a second connecting end (27) at its upper end. The second connecting end (27) is rotatably connected to a connecting rod (26). The other end of the connecting rod (26) is rotatably connected to a first connecting end (25). The first connecting end (25) is fixedly connected to the movable ring (23).

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