A movable precise positioning pile sinking operation platform for prestressed concrete solid square piles

Abstract

The application provides a movable precise positioning pile sinking operation platform for prestressed concrete solid square piles, and relates to the technical field of building construction.The application comprises a rack, a plurality of rollers arranged below the rack, a horizontal slide rail arranged horizontally on the ground, and the rack being arranged on the horizontal slide rail through the rollers; a positioning table arranged on the rack, a positioning hole vertically penetrating the positioning table and being adapted to the cross-sectional shape of the prestressed concrete solid square pile; a fixing mechanism arranged above the positioning table and used for fixing the square pile in the positioning hole; and a limiting guide mechanism arranged below the positioning table and used for guiding the vertical downward movement of the prestressed concrete solid square pile in the positioning hole.The application can solve the problem of deviation in the installation of the prestressed concrete solid square pile.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a movable precision positioning and pile driving operation platform for prestressed concrete solid square piles. Background Technology

[0002] Prestressed concrete solid square piles are square-section piles made primarily of prestressed concrete. By applying tension during the manufacturing process, their tensile strength and crack resistance are enhanced, thereby improving their bearing capacity and durability. They are commonly used in building foundations, bridge engineering, and ground reinforcement, and are widely applied in engineering construction due to their high strength, corrosion resistance, and adaptability to complex geological conditions.

[0003] The applicant discovered that during the installation of prestressed concrete solid square piles, installation deviations often occur. Summary of the Invention

[0004] To address the issue of potential deviations during the installation of prestressed concrete solid square piles, this application provides a movable, precise positioning and driving platform for prestressed concrete solid square piles.

[0005] This application provides a movable precision positioning and pile driving platform for prestressed concrete solid square piles, employing the following technical solution:

[0006] A movable precision positioning and driving platform for prestressed concrete solid square piles includes: a frame with rollers underneath and a transverse slide rail laid horizontally on the ground, the frame being movable on the transverse slide rail via the rollers; a positioning platform mounted on the frame, with a positioning hole at the center for the prestressed concrete solid square pile to pass vertically downwards, the shape of the positioning hole being adapted to the cross-sectional shape of the prestressed concrete solid square pile; a fixing mechanism mounted above the positioning platform for fixing the prestressed concrete solid square pile in the positioning hole; a limiting and guiding mechanism mounted below the positioning platform for guiding the prestressed concrete solid square pile in the positioning hole as it moves vertically downwards; and a switching mechanism mounted on the positioning platform for simultaneously controlling the positions of the fixing mechanism and the limiting and guiding mechanism, such that one of the fixing mechanism and the limiting and guiding mechanism is in a state of contact with the prestressed concrete solid square pile, while the other is in a state of separation from the prestressed concrete solid square pile.

[0007] Preferably, the opening shape of the positioning hole and the cross-sectional shape of the prestressed concrete solid square pile are both rectangular.

[0008] Preferably, the fixing mechanism includes a first pushing component and a first abutting component. The first pushing component is mounted on the positioning platform, and the first abutting component is mounted on the first pushing component. The first abutting component is used to drive the first abutting component to press against the side of the prestressed concrete solid square pile located in the positioning hole.

[0009] Preferably, the first actuation assembly includes a first reset electric cylinder, the piston rod of which extends horizontally.

[0010] Preferably, the first abutting component includes an abutting plate and a rubber plate. The abutting plate can abut against the end of the piston rod of the first reset electric cylinder, and the rubber plate is located on the side of the abutting plate facing the prestressed concrete solid square pile.

[0011] Preferably, the limiting and guiding mechanism includes a second pushing component and a second abutting component. The second pushing component is mounted on the positioning platform, and the second abutting component is mounted on the second pushing component. The second abutting component is used to drive the second abutting component to slide against the side of the prestressed concrete solid square pile located in the positioning hole.

[0012] Preferably, the second actuation assembly includes a second reset cylinder, the piston rod of which extends horizontally.

[0013] Preferably, the second abutting component includes an adhesive plate and adhesive wheels. The adhesive plate can abut against the piston rod end of the second reset electric cylinder. Multiple adhesive wheels are vertically rotatably embedded on the adhesive plate surface away from the second reset electric cylinder, and the adhesive wheels are used to roll and abut against the side of the prestressed concrete solid square pile located in the positioning hole.

[0014] Preferably, the switching mechanism includes a plurality of sequentially hinged movable tube sections, with adjacent movable tube sections hinged together, and the hinged positions of the movable tube sections are located on both sides of the center of the end of the movable tube section.

[0015] The ends of the movable pipe sections are provided with inclined surfaces. When the two movable pipe sections are axially aligned, the two adjacent inclined surfaces extend in opposite directions to leave a rotation gap between the two movable pipe sections. In the radial direction, the width of the rotation gap gradually increases from the area near the hinge to the area away from the hinge.

[0016] The positioning platform is provided with a U-shaped cavity, which includes a straight cavity and an arc-shaped cavity. The straight cavity is connected to each end of the arc-shaped cavity and is horizontally positioned. Multiple movable tube sections are slidably disposed in the U-shaped cavity. A through groove communicating with the outside is provided through the straight cavity. Among the multiple movable tube sections that are hinged in sequence, the two movable tube sections at the ends are provided with L-shaped connecting rods that extend to the outside through the through grooves. Of the two L-shaped connecting rods, one is fixedly connected to the bonding plate and the other is fixedly connected to the abutment plate.

[0017] Preferably, the roller is a self-locking swivel wheel.

[0018] The present invention has the following advantages and beneficial effects:

[0019] This patent proposes a movable precision positioning and driving platform for prestressed concrete solid square piles. Through the coordinated operation of the frame, positioning platform, fixing mechanism, limiting and guiding mechanism, and switching mechanism, it solves the problems of inaccurate positioning, pile displacement, and complex switching between fixing and guiding functions in traditional pile driving equipment, significantly improving the accuracy and stability of pile driving construction. The switching mechanism, through the hinged and sliding movements of multiple moving pipe sections, achieves automatic linkage switching between the contact plate and the abutment plate, ensuring uniform stress on the pile while preventing displacement and ensuring the verticality of the pile. The rational design of the fixing and limiting and guiding mechanisms further enhances the fixing strength and guiding effect of the pile, thereby improving construction efficiency and reducing the need for manual intervention. Furthermore, the device has a compact overall structure, is easy to manufacture and maintain, and has high economic efficiency and practicality, providing an efficient and reliable solution for pile driving construction under complex geological conditions. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural schematic diagram of an embodiment of this application;

[0022] Figure 2 This is a partial cross-sectional view of an embodiment of this application;

[0023] Figure 3 This is a partial enlarged cross-sectional view of an embodiment of this application;

[0024] Figure 4 This is a partial structural schematic diagram of the movable tube in an embodiment of this application.

[0025] The diagram is marked as follows:

[0026] 1. Frame; 11. Roller; 2. Transverse slide rail; 3. Positioning table; 31. Positioning hole; 32. Through groove; 4. Fixing mechanism; 41. First pushing assembly; 411. First reset electric cylinder; 42. First abutting assembly; 421. Abutting plate; 422. Rubber plate; 5. Limiting guide mechanism; 51. Second pushing assembly; 511. Second reset electric cylinder; 52. Second abutting assembly; 521. Adhesive plate; 522. Adhesive wheel; 6. Switching mechanism; 61. Moving tube section; 611. Inclined surface; 7. Rotation gap; 8. U-shaped cavity; 81. Straight cavity; 82. Arc-shaped cavity; 9. L-shaped connecting rod. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0028] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0029] In related technologies, prestressed concrete solid square piles are square-section piles made primarily of prestressed concrete. By applying tension during the manufacturing process, the concrete is placed under compression during actual use, significantly enhancing its tensile strength and crack resistance, and improving its bearing capacity and durability. Due to their high strength, corrosion resistance, and adaptability to complex geological conditions, prestressed concrete solid square piles are widely used in building foundations, bridge engineering, and foundation reinforcement, and have become an indispensable basic material in modern engineering construction.

[0030] However, in actual construction, the installation quality of prestressed concrete solid square piles directly affects the safety and stability of the entire project. During installation, the piles need to be fixed in the foundation through vertical settlement to achieve the designed depth and bearing capacity. This process typically relies on pile driving equipment to apply static pressure or hammering forces to the piles, causing them to gradually move downwards. However, through summarizing and analyzing numerous construction cases, the applicant found that although prestressed concrete solid square piles have superior compressive and bending resistance in their structural design, there are still shortcomings in precision control during the pile driving process, especially the tendency for piles to deviate from the design axis during actual installation.

[0031] This deviation mainly manifests as the pile material failing to maintain perfect verticality during vertical movement, instead experiencing horizontal displacement or tilting under stress, resulting in a discrepancy between the actual and designed positions. Further analysis shows that this deviation is typically caused by the following factors:

[0032] Complexity of the construction environment: The heterogeneity of the foundation soil or local obstacles may exert uneven resistance on the sinking path of the piles, thus causing displacement.

[0033] Equipment accuracy limitations: Existing pile driving equipment still suffers from insufficient accuracy in positioning and guiding functions, especially in the case of deep pile driving, where this problem is more prominent.

[0034] Improper construction operation: During the construction process, there may be situations where the guiding device is not adjusted in a timely manner or the operation steps are not fully implemented in accordance with the specifications, which may further increase the risk of pile material deviation.

[0035] The aforementioned problems not only affect the final positioning accuracy of the piles but may also reduce the overall safety and service life of the project. For example, when the piles deviate from the design axis, their bearing capacity may not be fully utilized, and it may even cause structural stress imbalance. Furthermore, to correct the pile deviations, the construction team often needs to take additional remedial measures, which not only increases construction time and costs but may also have a certain impact on the surrounding environment.

[0036] In summary, existing technologies still have the following defects and shortcomings in the pile driving operation of prestressed concrete solid square piles:

[0037] The lack of an efficient positioning and guidance mechanism makes it difficult to effectively prevent deviations in the pile material during the downward movement process;

[0038] The precision of the construction equipment is insufficient to meet the high-precision pile driving requirements under complex geological conditions.

[0039] The ability to monitor and adjust for deviations in pile materials in real time during construction is insufficient.

[0040] To address the above issues, there is an urgent need to develop a technical solution that can improve the installation accuracy of prestressed concrete solid square piles. This would effectively solve the deviation problems existing in the current technology, ensure that the pile material settles precisely along the design axis during the lowering process, thereby improving construction efficiency and project quality, and reducing construction costs and risks.

[0041] Based on this, this application provides a movable, precise positioning and driving platform for prestressed concrete solid square piles. Please refer to... Figures 1-4 The working platform includes a frame 1, a positioning platform 3, a fixing mechanism 4, a limiting and guiding mechanism 5, and a switching mechanism 6. The frame 1 has rollers 11 at its base and a horizontal slide rail 2 laid horizontally on the ground. The frame 1 moves along the horizontal slide rail 2 via the rollers 11. The positioning platform 3 is mounted on the frame 1, and its center has a positioning hole 31 for a prestressed concrete solid square pile to pass vertically downwards. The shape of the positioning hole 31 matches the cross-sectional shape of the prestressed concrete solid square pile. The fixing mechanism 4 is installed above the positioning platform 3 and is used to fix the prestressed concrete solid square pile at the positioning hole 3. The prestressed concrete solid square pile in the positioning hole 31 is fixed; the limiting guide mechanism 5 is installed below the positioning platform 3 to guide the prestressed concrete solid square pile in the positioning hole 31 when it moves vertically downward, so that the prestressed concrete solid square pile moves vertically downward; the switching mechanism 6 is installed on the positioning platform 3 to simultaneously control the position of the fixing mechanism 4 and the limiting guide mechanism 5, so that one of the fixing mechanism 4 and the limiting guide mechanism 5 is in a state of being pressed against the prestressed concrete solid square pile, and the other is in a state of being separated from the prestressed concrete solid square pile.

[0042] Based on this, the rollers 11 installed under the frame 1 cooperate with the transverse slide rails 2 laid horizontally along the ground, enabling the entire platform to move flexibly to adapt to the construction needs of different pile driving positions and improve construction efficiency. At the same time, the platform's movement accuracy is guaranteed by the quality of the slide rail laying, ensuring that the platform remains stable at all times. The positioning platform 3 is designed with a centrally located positioning hole 31, the shape of which is adapted to the cross-sectional shape of the pile material. This provides effective support for the initial positioning of the prestressed concrete solid square pile, avoiding the pile material offset problem caused by inaccurate initial positioning in traditional construction. The positioning hole 31, combined with the dual functions of the fixing mechanism 4 and the limiting and guiding mechanism 5, further achieves precise guidance and reliable fixation when the pile material moves vertically downward, ensuring that the movement direction of the pile material is consistent with the set vertical direction, thereby overcoming the problem of deviation accumulation caused by uneven contact between the pile material and the soil layer in the existing technology. Furthermore, the switching mechanism 6, through the coordinated control of the fixing mechanism 4 and the limiting and guiding mechanism 5, allows them to alternately act on the pile material when needed. One mechanism closely adheres to the pile material to provide support or guidance, while the other separates to allow the pile material to continue moving downwards. This design effectively avoids interference between fixing and guiding operations, improving the overall system's coordination and functionality. Overall, this working platform, through the synergistic effect of its various technical features, solves the deviation problems caused by inaccurate positioning and insufficient guidance during the driving of prestressed concrete solid square piles. It ensures the construction accuracy of the pile material under complex geological conditions, further improving construction quality and safety, while reducing subsequent repair costs due to pile material deviation, demonstrating extremely high engineering applicability and practicality.

[0043] In some embodiments, the opening shape of the positioning hole 31 and the cross-sectional shape of the prestressed concrete solid square pile are both rectangular. The rectangle can prevent the prestressed concrete solid square pile from rotating within the positioning hole 31, thereby improving the circumferential stability of the prestressed concrete solid square pile within the positioning hole 31.

[0044] In some implementations, reference is made to Figure 1 , Figure 2 as well as Figure 3 The fixing mechanism 4 includes a first pushing component 41 and a first abutting component 42. The first pushing component 41 is mounted on the positioning platform 3, and the first abutting component 42 is mounted on the first pushing component 41. The first abutting component 42 is used to drive the first abutting component 42 to press against the side of the prestressed concrete solid square pile located in the positioning hole 31.

[0045] For example, the first pushing component 41 includes a first reset electric cylinder 411, the piston rod of which extends horizontally. For example, the first abutting component 42 includes an abutting plate 421 and a rubber plate 422. The abutting plate 421 is abutting against the end of the piston rod of the first reset electric cylinder 411, and the rubber plate 422 is disposed on the side of the abutting plate 421 facing the prestressed concrete solid square pile. For example, the fixing mechanism 4 is symmetrically arranged on both sides of the positioning hole 31 on the positioning platform 3, and the abutting plates 421 on both sides simultaneously drive the rubber plates 422 to abut against the prestressed concrete solid square pile, thereby improving the fixing effect of the prestressed concrete solid square pile within the positioning hole 31.

[0046] Based on this, the fixing mechanism 4 includes a first pushing component 41 and a first abutting component 42. The first pushing component 41 is driven by a first reset electric cylinder 411, and its piston rod extends horizontally to provide reliable driving force, enabling precise control of the movement of the first abutting component 42, thereby ensuring the flexibility and stability of the fixing action. The first abutting component 42 consists of an abutting plate 421 and a rubber plate 422. The abutting plate 421 can directly abut against the end of the piston rod of the first reset electric cylinder 411 to achieve force transmission, while the rubber plate 422 is located on the side of the abutting plate 421 facing the pile material. Its flexible characteristics can effectively absorb impact force during the fixing process, avoiding damage to the surface of the pile material, and also enhance the friction of the contact surface, further improving the fixing effect. In addition, a fixing mechanism 4 is provided on each side of the positioning hole 31 on the positioning platform 3. By applying force to each side, the first abutting component 42 acts on both sides of the pile material at the same time, and applies abutting force to the pile material evenly. This effectively avoids the displacement or tilting problems that may be caused by applying force on one side, thereby ensuring the stability and verticality of the pile material in the positioning hole 31.

[0047] This design solves the problems of pile displacement and instability caused by a single fixing method or uneven force application in existing technologies. First, the first reset electric cylinder 411 provides precise and controllable driving force, making the fixing process more efficient and accurate, overcoming the problem of insufficient precision in traditional mechanical driving methods. Second, the combination of the abutment plate 421 and the rubber plate 422 not only improves the fixing strength, but also reduces damage to the pile surface caused by hard contact through the flexibility of the rubber plate 422, while enhancing the contact stability between the pile and the fixing components. Third, the fixing mechanism 4 is symmetrically arranged on both sides and applies force, ensuring uniform force on the pile in the vertical direction, greatly reducing the risk of eccentric force and tilting caused by unilateral force application. Overall, this design demonstrates significant innovation and practicality in the arrangement of the fixing mechanism 4, the driving method, and the selection of contact materials, enabling the prestressed concrete solid square pile to maintain a precise positioning state throughout the pile driving process, thereby significantly improving construction quality and efficiency, and demonstrating superior engineering adaptability and practical application value.

[0048] In some implementations, such as Figure 1 , Figure 2 as well as Figure 3 As shown, the limiting and guiding mechanism 5 includes a second pushing component 51 and a second abutting component 52. The second pushing component 51 is mounted on the positioning platform 3, and the second abutting component 52 is mounted on the second pushing component 51. The second abutting component 52 is used to drive the second abutting component 52 to slide against the side of the prestressed concrete solid square pile located in the positioning hole 31. For example, a set of limiting and guiding mechanisms 5 is symmetrically arranged on both sides of the positioning hole 31 on the positioning platform 3, and the limiting and guiding mechanisms 5 on both sides simultaneously abut against the prestressed concrete solid square pile to improve the limiting effect of the prestressed concrete solid square pile in the positioning hole 31.

[0049] For example, the second pushing assembly 51 includes a second reset electric cylinder 511, the piston rod of which extends horizontally. For example, the second abutting assembly 52 includes an adhesive plate 521 and adhesive wheels 522. The adhesive plate 521 is abutting with the end of the piston rod of the second reset electric cylinder 511. Multiple adhesive wheels 522 are vertically rotatably embedded on the surface of the adhesive plate 521 opposite to the second reset electric cylinder 511, and the adhesive wheels 522 are used to roll and abut against the side of the prestressed concrete solid square pile located in the positioning hole 31.

[0050] Based on this, the limiting and guiding mechanism 5 includes a second pushing component 51 and a second abutting component 52. The second pushing component 51 uses a second reset electric cylinder 511 as a driving device, and its piston rod extends horizontally, which can precisely control the movement and action of the second abutting component 52, thereby ensuring the stability and accuracy of the guiding mechanism. The second abutting component 52 consists of a bonding plate 521 and a bonding wheel 522. The bonding plate 521 directly cooperates with the end of the piston rod of the second reset electric cylinder 511, which can smoothly transmit the driving force to the bonding wheel 522. The bonding wheel 522 is vertically arranged on the side of the bonding plate 521 away from the electric cylinder, and multiple wheels form a rolling structure. Through rolling contact with the side of the pile, the frictional resistance of the pile during the downward movement is effectively reduced, while ensuring the smoothness of the guiding process.

[0051] The key technological advantages of this design are reflected in the following aspects: First, the second reset electric cylinder 511 provides precise driving force, enabling flexible adjustment of the positions of the bonding plate 521 and bonding wheel 522 according to the size and position of the pile, thus ensuring that the bonding wheel 522 remains in close contact with the side of the pile, providing stable guidance. Second, the bonding wheel 522 significantly reduces frictional resistance through rolling contact, avoiding the problem of poor guidance caused by excessive friction in traditional sliding guide mechanisms, while effectively reducing structural damage to the pile surface caused by wear. Third, the vertical multi-wheel arrangement of the bonding wheel 522 makes the guiding effect more uniform, applying support force at multiple contact points on the side of the pile, thus preventing the pile from tilting or shifting due to single-point guiding force, further improving the verticality and stability during the downward movement. In addition, the linkage between the limiting guide mechanism 5 and the fixing mechanism 4 enables seamless connection of positioning, fixing, and guiding during the vertical downward movement of the pile, making the entire pile driving operation more precise and efficient.

[0052] In summary, the design of this limiting and guiding mechanism 5, through the precise drive of the second reset electric cylinder 511, the stable force transmission of the bonding plate 521, and the low-friction rolling contact of the bonding wheel 522, successfully solves the problem of displacement caused by poor guidance during the pile driving process of prestressed concrete solid square piles, ensuring the vertical movement accuracy and construction quality of the pile material under complex construction conditions. At the same time, this mechanism has good adaptability and operational flexibility, not only improving construction efficiency but also reducing equipment maintenance costs, demonstrating extremely high engineering application value and technological innovation. It is worth noting that...

[0053] In some implementations, such as Figure 2 , Figure 3 as well as Figure 4 As shown, the switching mechanism 6 includes a plurality of movable tube sections 61 that are hinged together in sequence. The movable tube sections 61 are hinged together with each other, and the hinged positions of the movable tube sections 61 are located on both sides of the center of the end of the movable tube section 61.

[0054] For example, the end of the movable tube section 61 is provided with an inclined surface 611. When the two movable tube sections 61 are axially aligned, the two adjacent inclined surfaces 611 extend in opposite directions to leave a rotation gap 7 between the two movable tube sections 61. In the radial direction, the rotation gap 7 gradually increases in width from near the hinge to away from the hinge.

[0055] For example, the positioning platform 3 is provided with a U-shaped cavity 8, which includes a straight cavity 81 and an arc-shaped cavity 82. The straight cavity 81 is connected to both ends of the arc-shaped cavity 82 and is horizontally provided. Multiple movable tube sections 61 are slidably disposed in the U-shaped cavity 8. A through groove 32 communicating with the outside is provided through the straight cavity 81. Among the multiple movable tube sections 61 that are hinged in sequence, the two movable tube sections 61 at the ends are provided with L-shaped connecting rods that extend to the outside through the through groove 32. One of the two L-shaped connecting rods is fixedly connected to the bonding plate 521, and the other is fixedly connected to the abutment plate 421.

[0056] Based on this, the switching mechanism 6 enables the coordinated switching action of the bonding plate 521 and the abutment plate 421, thereby effectively improving the accuracy and efficiency of the pile driving operation. The core structure of the switching mechanism 6 consists of multiple sequentially hinged movable pipe sections 61. These movable pipe sections 61 are connected by hinges and slide within the U-shaped cavity 8. Each movable pipe section 61 has an inclined surface 611 at its end. These inclined surfaces 611 extend in opposite directions when adjacent movable pipe sections 61 are facing each other, thereby forming a gradually widening rotation gap 7 between the pipe sections, ensuring the flexibility and smoothness of the hinged parts. The U-shaped cavity 8 consists of a straight cavity 81 and an arc-shaped cavity 82. The straight cavity 81 is horizontally positioned at both ends of the arc-shaped cavity 82 and is connected to the outside through the through groove 32. In the multiple movable tube sections 61, the two end sections are respectively connected to L-shaped connecting rods. One L-shaped connecting rod is fixedly connected to the bonding plate 521, and the other L-shaped connecting rod is fixedly connected to the abutment plate 421, thereby realizing the linkage operation between the bonding plate 521 and the abutment plate 421.

[0057] The technical benefits of this design are reflected in the following aspects: First, the hinged design of the movable tube section 61 and the inclined surface 611 structure ensure the flexibility and stability of the switching mechanism 6. When the bonding plate 521 or the abutment plate 421 moves under the drive of the reset electric cylinder, the movable tube section 61 can transmit force to the corresponding L-shaped connecting rod through hinged engagement and sliding action, thereby realizing the relative movement of the other component. Specifically, when the bonding plate 521 approaches the prestressed concrete solid square pile, the abutment plate 421 will move away from the pile material accordingly through the linkage of the switching mechanism 6; and when the bonding plate 521 moves away from the pile material, the abutment plate 421 will move closer to the pile material. This switching process relies on the precise sliding of the movable tube section 61 within the U-shaped cavity 8, so that the bonding plate 521 and the abutment plate 421 can always maintain the optimal position for interaction with the pile material, thereby improving the fixation and guiding effect of the pile material during the pile driving process.

[0058] Secondly, the design of the U-shaped cavity 8 makes the action path of the switching mechanism 6 clearer and more reliable. The through groove 32 of the straight cavity 81 not only facilitates the flexible extension of the L-shaped connecting rod, but also ensures the smooth movement of the bonding plate 521 and the abutment plate 421 during the switching process. At the same time, the curved cavity 82 provides the necessary transition path, making the switching action smoother and avoiding jamming or malfunctions caused by improper path design. In addition, the combined design of the straight cavity 81 and the curved cavity 82 also optimizes the structural compactness of the switching mechanism 6, enabling the entire device to achieve complex motion coordination within a limited space.

[0059] More importantly, the switching mechanism 6 enables automatic switching between the bonding plate 521 and the abutment plate 421, thereby significantly improving construction efficiency. During pile driving, the alternating action of the bonding plate 521 and the abutment plate 421 ensures that the pile material is always subjected to stable guiding and fixing forces, avoiding problems such as pile material displacement or uneven stress that may occur due to the action of a single component. This switching method not only improves the accuracy of pile driving but also reduces the need for manual intervention, thereby reducing operational complexity and labor costs. At the same time, since the switching mechanism 6 transmits motion through the hinge and sliding of the moving pipe section 61, its overall structure is simple, easy to manufacture and maintain, further enhancing the economy and practicality of the equipment.

[0060] In summary, the design of the switching mechanism 6, through the hinged sliding fit of the moving pipe section 61, the optimized path design of the U-shaped cavity 8, and the coordinated switching action of the fitting plate 521 and the abutment plate 421, successfully achieves precise positioning and efficient operation of prestressed concrete solid square piles during the pile driving process. This technical solution not only overcomes the technical difficulty of inconvenient switching between fixing and guiding functions in traditional pile driving equipment, but also demonstrates excellent adaptability and engineering value, which is of great significance for improving construction quality and reducing construction costs.

[0061] It is worth noting that, since both the first reset electric cylinder 411 and the second reset electric cylinder 511 are reset electric cylinders, they will automatically retract their piston rods after the power is cut off. This allows the piston rods of the first reset electric cylinder 411 and the second reset electric cylinder 511 to extend without interfering with each other as multiple moving pipe sections 61 move.

[0062] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A movable precision positioning and pile driving platform for prestressed concrete solid square piles, characterized in that, include: A frame (1) is provided with rollers (11) below the frame (1) and a horizontal slide rail (2) is laid horizontally along the ground. The frame (1) is moved on the horizontal slide rail (2) by means of the rollers (11). A positioning platform (3) is set on the frame (1), and the center of the positioning platform (3) is provided with a positioning hole (31) for the prestressed concrete solid square pile to pass vertically downward. The shape of the positioning hole (31) is adapted to the cross-sectional shape of the prestressed concrete solid square pile. The fixing mechanism (4) is installed above the positioning platform (3) and is used to fix the prestressed concrete solid square pile in the positioning hole (31); The limiting guide mechanism (5) is installed below the positioning platform (3) to guide the prestressed concrete solid square pile in the positioning hole (31) when it moves vertically downward, so that the prestressed concrete solid square pile moves vertically downward. The switching mechanism (6) is installed on the positioning platform (3) to simultaneously control the position of the fixing mechanism (4) and the limiting guide mechanism (5) so that one of the fixing mechanism (4) and the limiting guide mechanism (5) is in a state of being tightly against the prestressed concrete solid square pile, and the other is in a state of being separated from the prestressed concrete solid square pile.

2. The movable precision positioning and pile driving platform for prestressed concrete solid square piles according to claim 1, characterized in that, The opening shape of the positioning hole (31) and the cross-sectional shape of the prestressed concrete solid square pile are both rectangular.

3. The movable precision positioning and pile driving platform for prestressed concrete solid square piles according to claim 1, characterized in that, The fixing mechanism (4) includes a first pushing component (41) and a first abutting component (42). The first pushing component (41) is mounted on the positioning platform (3), and the first abutting component (42) is mounted on the first pushing component (41). The first abutting component (42) is used to drive the first abutting component (42) to press against the side of the prestressed concrete solid square pile located in the positioning hole (31).

4. The movable precision positioning and pile driving platform for prestressed concrete solid square piles according to claim 3, characterized in that, The first actuation assembly (41) includes a first reset electric cylinder (411) with a piston rod that extends horizontally.

5. The movable precision positioning and pile driving platform for prestressed concrete solid square piles according to claim 4, characterized in that, The first abutting component (42) includes an abutting plate (421) and a rubber plate (422). The abutting plate (421) can abut against the piston rod end of the first reset electric cylinder (411). The rubber plate (422) is located on the side of the abutting plate (421) facing the prestressed concrete solid square pile.

6. The movable precision positioning and pile driving platform for prestressed concrete solid square piles according to claim 5, characterized in that, The limiting and guiding mechanism (5) includes a second pushing component (51) and a second abutting component (52). The second pushing component (51) is mounted on the positioning platform (3), and the second abutting component (52) is mounted on the second pushing component (51). The second abutting component (52) is used to drive the second abutting component (52) to slide against the side of the prestressed concrete solid square pile located in the positioning hole (31).

7. A movable precision positioning and pile driving platform for prestressed concrete solid square piles according to claim 6, characterized in that, The second actuation assembly (51) includes a second reset cylinder (511) with a piston rod that extends horizontally.

8. The movable precision positioning and pile driving platform for prestressed concrete solid square piles according to claim 7, characterized in that, The second abutting component (52) includes an abutting plate (521) and an abutting wheel (522). The abutting plate (521) can abut against the piston rod end of the second reset electric cylinder (511). Multiple abutting wheels (522) are vertically rotatably embedded on the abutting plate (521) away from the second reset electric cylinder (511). The abutting wheels (522) are used to roll against the side of the prestressed concrete solid square pile located in the positioning hole (31).

9. A movable precision positioning and pile driving platform for prestressed concrete solid square piles according to claim 8, characterized in that, The switching mechanism (6) includes a plurality of sequentially hinged movable tube sections (61), with two adjacent movable tube sections (61) hinged together, and the hinged positions of the movable tube sections (61) are located on both sides of the center of the end of the movable tube section (61). The end of the movable tube section (61) is provided with an inclined surface (611). When the two movable tube sections (61) are axially aligned, the two adjacent inclined surfaces (611) extend in opposite directions to leave a rotation gap (7) between the two movable tube sections (61). In the radial direction, the rotation gap (7) gradually increases in width from near the hinge to away from the hinge. The positioning platform (3) is provided with a U-shaped cavity (8), which includes a straight cavity (81) and an arc-shaped cavity (82). The straight cavity (81) is connected to both ends of the arc-shaped cavity (82) and is horizontally provided. Multiple movable tube sections (61) are slidably disposed in the U-shaped cavity (8). A through groove (32) communicating with the outside is provided through the straight cavity (81). Among the multiple movable tube sections (61) that are hinged in sequence, the two movable tube sections (61) at the end are provided with L-shaped connecting rods that extend to the outside through the through groove (32). One of the two L-shaped connecting rods is fixedly connected to the bonding plate (521), and the other is fixedly connected to the abutment plate (421).

10. A movable precision positioning and pile driving platform for prestressed concrete solid square piles according to any one of claims 1-9, characterized in that, The roller (11) is a self-locking universal wheel.

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