A snap-on prestressed pile joint positioning device

Abstract

The application belongs to the technical field of pile connecting positioning devices, and discloses a snap-on prestressed pile pile connecting positioning device, which comprises a connecting plate and a guide assembly. Fixed plates are arranged at the two ends of the connecting plate. One of the fixed plates is hingedly provided with a rotating plate through a hinge shaft. A fixing assembly for fixing the rotating plate is arranged on the other fixed plate. A clamping frame is horizontally slidably arranged on the rotating plate. A stand is arranged on the fixed plate. A first threaded hole is formed in the top of the stand. A first threaded rod is spirally arranged in the first threaded hole. A limiting plate is rotatably arranged on the rod above the stand. When the device is placed, the lower side of the limiting plate is in contact with the top surface of the prestressed pile to limit the height of the device. After the clamping frame of the device is tightly pressed against the lower pile body, the limiting plate needs to be rotated to the outside of the fixed plate to avoid affecting the connection between the upper pile body and the lower pile body. When the piles are connected, the guide assembly guides the upper pile body.

Description

Technical Field

[0001] This utility model relates to the technical field of pile splicing positioning devices, and in particular to a spring-loaded prestressed pile splicing positioning device. Background Technology

[0002] There are several methods for connecting prestressed precast piles, including welding between upper and lower columns, riveting with sleeves, and flange connections. Regarding the currently used new spring clip connection technology, since the spring clips are installed with screws before butt joint installation, they cannot be bumped during the installation and positioning of the upper and lower columns. Even slight carelessness can cause the spring clips to deform, severely damaging the bolt holes embedded in the prestressed precast pile for installing the spring clips, and even more seriously, damaging the edges and corners of the precast pile.

[0003] Currently, during the installation and connection of existing prestressed precast piles, the upper prestressed pile needs to be hoisted, and workers need to observe and adjust the position of the lower end of the upper prestressed pile to ensure that it is aligned with the upper end of the lower prestressed pile. This operation is difficult, time-consuming and labor-intensive. Utility Model Content

[0004] To solve the above problems, this utility model provides a spring-loaded prestressed pile splicing positioning device.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a spring-loaded prestressed pile splice positioning device, comprising a connecting plate, a guide assembly provided on the connecting plate, and fixing plates provided at both ends of the connecting plate. One of the fixing plates, at the end away from the connecting plate, is hinged to a rotating plate via a hinge shaft. The other fixing plate is provided with a fixing assembly for fixing the end of the rotating plate away from the hinge shaft. A clamping frame is horizontally slidably provided on the rotating plate. A column is provided on the fixing plate. A first threaded hole is opened at the top of the column. A first threaded rod is spirally provided in the first threaded hole. A handle is provided at the upper end of the first threaded rod. A limiting plate is rotatably sleeved on the rod body above the column.

[0006] By adopting the above technical solution, a connecting plate, guiding assembly, clamping frame, and limiting plate are set up. The rotating plate and fixed plate connected by the hinge shaft can be flexibly opened and closed, allowing the device to be quickly fitted onto the outside of the lower stress pile. The device is stably fixed to the lower pile by adjusting the position of the clamping frame, preventing displacement of the device during pile splicing. The combined structure of the column, the first threaded rod, and the limiting plate can be fixed by rotating the handle to drive the first threaded rod to lift and press the limiting plate against the rotating plate. When connecting the device to the lower pile, the limiting plate is first rotated to be inside the fixed plate. When placing the device, the lower side of the limiting plate contacts the top surface of the prestressed pile, limiting the height of the device. After the clamping frame of the device is pressed against the lower pile, the limiting plate needs to be rotated to be outside the fixed plate to avoid affecting the connection between the upper and lower piles. During pile splicing, the guiding assembly guides the upper pile. After the pile splicing is completed, simply open the fixed assembly, and the connecting plate can be rotated around the hinge shaft to remove the device from the side of the pile. This reduces the difficulty of pile splicing and is more convenient.

[0007] Furthermore, the limiting plate has a through hole on one side and a screw hole on the other side. The limiting plate is rotatably sleeved on the first threaded rod through the through hole. A screw rod is spirally arranged in the screw hole, and a rotating cap is provided at the upper end of the screw rod.

[0008] By adopting the above technical solution, and setting through holes, screw holes, and screw rods, before the device is connected to the pile body, rotating the rotating cap drives the screw rod down until the rotating cap contacts the limiting plate, so that the lower end of the screw rod contacts the top surface of the pile body on the lower side. After connection, when it is necessary to rotate the limiting plate, first rotate the rotating cap to drive the screw rod up, so that the limiting plate and screw rod do not contact the top surface of the pile body, making the rotation smoother.

[0009] Furthermore, a contact block is provided at the lower end of the screw rod, and the contact block is hemispherical.

[0010] By adopting the above technical solution and setting a contact block, the screw rod is prevented from directly contacting the top surface of the pile body below.

[0011] Furthermore, the fixing component includes a pin post and two horizontal plates vertically spaced apart on the fixing plate. The horizontal plates are vertically provided with pin holes, and the rotating plate is vertically provided with a round hole on the side away from the hinge axis. The pin post is inserted into the pin hole and the round hole.

[0012] By adopting the above technical solution, a horizontal plate, a pin hole, and a round hole are set. The pin is engaged with the pin hole on the double horizontal plate and the round hole on the rotating plate. A plug-in locking method is adopted. During operation, the pin is simply inserted into the pin hole and the round hole from top to bottom to quickly fix the rotating plate. To unlock, the pin is simply pulled out upwards.

[0013] Furthermore, the connecting plate has two sliding holes, and the clamping frame includes sliding rods slidably disposed in the sliding holes. The two sliding rods are connected to a pressure plate near one end of the connecting plate. The connecting plate has a second threaded hole horizontally disposed, and a second threaded rod is spirally disposed in the second threaded hole. One end of the second threaded rod is rotatably connected to the pressure plate, and the other end is provided with a control panel.

[0014] By adopting the above technical solution, a sliding hole, a sliding rod, and a pressure plate are set up. The cooperation between the sliding rod and the sliding hole ensures that the pressure plate can only move horizontally, avoiding the pressure plate from shifting during the clamping process. By rotating the control disc to drive the second threaded rod to rotate, the pressure plate can be moved smoothly closer to or away from the pile body to achieve clamping, which can ensure the fixation of the device and the pile body.

[0015] Furthermore, the guide assembly includes two L-shaped plates respectively disposed at both ends of the connecting plate, with one bottom end of the L-shaped plate connected to the connecting plate and the other bottom end connected to an adjacent fixed plate.

[0016] By adopting the above technical solution, an L-shaped plate is set up. The two sections of the L-shaped plate are arranged along the length and width directions of the connecting plate, respectively, to form a right-angled guide structure, which can limit and guide the upper pile body being hoisted from two vertical directions.

[0017] Furthermore, each of the two sections of the L-shaped plate has an inclined plate at its top, which is arranged obliquely upwards and outwards from the L-shaped plate, and the two inclined plates are connected on adjacent sides.

[0018] By adopting the above technical solution, an inclined plate is set up. The inclined plate tilts outward and upward from the L-shaped plate to form a guide entrance similar to a trumpet. Compared with the straight top of the L-shaped plate, the inclined plate can expand the entry range of the upper pile body. Even if the upper pile body is slightly offset during hoisting, the inclined plate can guide the automatic correction of the position, reducing the operation difficulty for construction personnel.

[0019] In summary, this utility model has the following beneficial effects: The present application includes a connecting plate, a guiding assembly, a clamping frame, and a limiting plate. The rotating plate and the fixed plate, connected by a hinge shaft, can be flexibly opened and closed, allowing the device to be quickly fitted onto the outside of the lower stress pile. Adjusting the position of the clamping frame ensures the device is securely fixed to the lower pile, preventing displacement during pile splicing. The combined structure of the column, the first threaded rod, and the limiting plate allows the first threaded rod to be raised and lowered by rotating the handle, causing the limiting plate to press against the rotating plate for fixation. When connecting the device to the lower pile, the limiting plate is first rotated to the inside of the fixed plate. When placing the device, the lower side of the limiting plate contacts the top surface of the prestressed pile, limiting the height of the device. After the clamping frame of the device is pressed against the lower pile, the limiting plate must be rotated to the outside of the fixed plate to avoid affecting the connection between the upper and lower piles. During pile splicing, the guiding assembly guides the upper pile. After pile splicing is completed, simply opening the fixed assembly allows the connecting plate to be rotated around the hinge shaft to remove the device from the side of the pile. It reduces the difficulty of pile connection and is relatively convenient. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 yes Figure 1 Enlarged view of part A; Figure 3 This is a schematic diagram of the clamping frame according to an embodiment of the present invention; Figure 4 This is a structural schematic diagram of the column and limiting plate in an embodiment of this utility model.

[0021] In the diagram: 10. Connecting plate; 20. Guide assembly; 21. L-shaped plate; 22. Inclined plate; 30. Fixing plate; 31. Hinge shaft; 40. Rotating plate; 41. Second threaded rod; 42. Control panel; 50. Fixing assembly; 51. Pin post; 52. Horizontal plate; 60. Clamping frame; 61. Slide rod; 62. Pressure plate; 70. Column; 71. First threaded rod; 72. Handle; 73. Limiting plate; 74. Screw rod; 75. Rotating cap; 76. Contact block. Detailed Implementation

[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0023] like Figures 1-4As shown in the embodiment of this application, a spring-loaded prestressed pile splicing positioning device is disclosed, including a connecting plate 10, a guide component 20, a clamping frame 60, and a limiting plate 73. The guide component 20 is disposed on the connecting plate 10, and fixed plates 30 are disposed at both ends of the connecting plate 10. One of the fixed plates 30 is hinged to a rotating plate 40 at the end away from the connecting plate 10 via a hinge shaft 31. The other fixed plate 30 is provided with a fixing component 50 for fixing the end of the rotating plate 40 away from the hinge shaft 31. The clamping frame 60 is horizontally slidably disposed on the rotating plate 40. The rotating plate 40 connected by the hinge shaft 31 and the fixed plate 30 can be flexibly opened and closed, which can quickly fit the device on the outside of the lower prestressed pile. By adjusting the position of the clamping frame 60, the device can be stably fixed to the lower pile body, avoiding displacement of the device during the splicing process.

[0024] Specifically, a column 70 is provided on the fixing plate 30. A first threaded hole is opened at the top of the column 70, and a first threaded rod 71 is spirally installed in the first threaded hole. A handle 72 is provided at the upper end of the first threaded rod 71. A limiting plate 73 is rotatably sleeved on the rod of the first threaded rod 71 above the column 70. The combined structure of the column 70, the first threaded rod 71 and the limiting plate 73 can be fixed by rotating the handle 72 to drive the first threaded rod 71 to rise and fall, thereby pressing the limiting plate 73 against the rotating plate 40. When the device is connected to the pile body below, the limiting plate 73 is first rotated to be located inside the fixing plate 30. When placing the device, the lower side of the limiting plate 73 contacts the top surface of the prestressed pile, limiting the height of the device. After the clamping frame 60 of the device is pressed against the pile body below, the limiting plate 73 needs to be rotated to be located outside the fixing plate 30 to avoid affecting the connection between the upper and lower pile bodies. During pile splicing, the guide component 20 guides the upper pile body. After the pile splicing is completed, simply open the fixing component 50, and the connecting plate 10 can be rotated around the hinge axis 31 to remove the device from the side of the pile. This reduces the difficulty of pile splicing and is more convenient.

[0025] A through hole is vertically opened on one side of the limiting plate 73, and a screw hole is vertically opened on the other side. The limiting plate 73 is rotatably sleeved on the first threaded rod 71 through the through hole. A screw rod 74 is screwed into the screw hole, and a rotating cap 75 is provided at the upper end of the screw rod 74. Before the device is connected to the pile body, rotating the rotating cap 75 drives the screw rod 74 down until the rotating cap 75 contacts the limiting plate 73, so that the lower end of the screw rod 74 contacts the top surface of the pile body below. After connection, when the limiting plate 73 needs to be rotated, rotating the rotating cap 75 first drives the screw rod 74 up, so that the limiting plate 73 and the screw rod 74 do not contact the top surface of the pile body, making the rotation smoother. A contact block 76 is provided at the lower end of the screw rod 74. The contact block 76 is hemispherical to prevent the screw rod 74 from directly contacting the top surface of the pile body below.

[0026] During setup, the fixing component 50 includes a pin 51 and two horizontal plates 52 vertically spaced on the fixing plate 30. The pin 51 includes a column and a head, with the diameter of the head being larger than the diameter of the column. A pin hole is vertically formed on the horizontal plate 52, and a circular hole is vertically formed on the side of the rotating plate 40 away from the hinge shaft 31. The pin 51 engages with the pin hole and the circular hole. The engagement of the pin 51 with the pin hole on the horizontal plate 52 and the circular hole on the rotating plate 40 employs a plug-and-play locking method. During operation, simply insert the pin 51 from top to bottom into the pin hole and the circular hole to quickly fix the rotating plate 40. Unlocking is achieved by simply pulling the pin 51 upwards, eliminating the need for complex threaded disassembly operations. This significantly improves the efficiency of opening and closing the device, making it particularly suitable for high-frequency installation and disassembly requirements on construction sites. Furthermore, the two horizontal plates 52 are vertically spaced apart, and the pin 51 passes through the pin holes of the two horizontal plates 52 and the round hole of the rotating plate 40 at the same time, forming a two-point support locking structure to ensure the overall rigidity of the rotating plate 40 after it is connected to the fixed plate 30.

[0027] The connecting plate 10 has two sliding holes. The clamping frame 60 includes sliding rods 61 slidably disposed within the sliding holes. A pressure plate 62 is provided near one end of the two sliding rods 61 adjacent to the connecting plate 10. The cooperation between the sliding rods 61 and the sliding holes ensures that the pressure plate 62 can only move horizontally, preventing it from shifting during clamping. A second threaded hole is horizontally provided on the connecting plate 10. A second threaded rod 41 is spirally disposed within the second threaded hole. One end of the second threaded rod 41 is rotatably connected to the pressure plate 62, and the other end is provided with a control disc 42. By rotating the control disc 42, the second threaded rod 41 can be driven to rotate, causing the pressure plate 62 to smoothly approach or move away from the pile body, achieving clamping and ensuring the fixation of the device to the pile body.

[0028] In its specific configuration, the guide assembly 20 includes two L-shaped plates 21 respectively disposed at both ends of the connecting plate 10. One bottom section of the L-shaped plate 21 is connected to the connecting plate 10, and the other bottom section is connected to the adjacent fixing plate 30. The two sections of the L-shaped plate 21 are arranged along the length and width directions of the connecting plate 10, respectively, forming a right-angled guide structure, which can limit and guide the hoisted upper pile from two vertical directions. At the same time, the double connection between the bottom of the L-shaped plate 21 and the connecting plate 10 and the fixing plate 30 ensures the structural rigidity of the guide assembly 20 and avoids deformation of the guide assembly 20 due to the impact of the upper pile during the pile splicing process; moreover, the right-angled structure of the L-shaped plate 21 can be adapted to rectangular prestressed piles, resulting in more precise guidance. Both sections of the L-shaped plate 21 have inclined plates 22 at their top. These inclined plates 22 are positioned diagonally upwards and outwards from the L-shaped plate 21, forming a funnel-shaped guide entrance. Compared to the straight top of the L-shaped plate 21, the inclined plates 22 expand the entry range of the upper pile. Even if the upper pile deviates slightly during hoisting, workers can push the lower end of the pile closer to the inclined plates 22, and the inclined surface of the plates 22 will guide the automatic correction of its position, reducing the operational difficulty for construction workers. The two inclined plates 22 are connected on adjacent sides, enhancing the connection strength between the inclined plates 22 and the L-shaped plate 21 and forming a continuous guide channel. This ensures that the upper pile remains in a stable guiding state throughout the entire process from entering the guide range to connecting with the lower pile, further improving the accuracy and efficiency of pile splicing.

[0029] The operating principle of the spring-loaded prestressed pile splicing positioning device in this embodiment is as follows: During operation, first rotate the limiting plate 73 to the inside of the fixing plate 30, and then rotate the first threaded rod 71 and the handle 72 to fix the limiting plate 73. Then, the device is sleeved onto the outside of the lower prestressed pile, and then the lower side of the contact block 76 contacts the top surface of the prestressed pile to limit the height of the device. Next, rotate the control disk 42 to drive the second threaded rod 41 to rotate and drive the pressure plate 62 to move horizontally along the sliding hole of the connecting plate 10 through the sliding rod 61 until the pressure plate 62 is pressed against the lower pile body to achieve a stable fixation.

[0030] Next, rotate the rotating cap 75 on the limiting plate 73 to raise the screw rod 74 and contact block 76 until they no longer contact the top surface of the pile. Then, rotate the first threaded rod 71 and handle 72 to loosen the fixation of the limiting plate 73. Then, rotate the limiting plate 73 to the outside of the fixing plate 30 to avoid affecting the pile connection.

[0031] Next, the upper pile body is hoisted. Under the push of the staff, the upper pile body approaches the L-shaped plate and enters through the funnel-shaped guide entrance formed by the inclined plate 22 at the top of the L-shaped plate 21. Under the limit guidance of the two vertical directions of the right-angle structure of the L-shaped plate 21, the position is automatically corrected and accurately connected to the lower pile body to complete the pile connection.

[0032] After the pile is spliced, pull out the pin 51 upwards, then rotate the connecting plate 10 around the hinge shaft 31 to remove the device from the side of the pile.

[0033] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A spring-loaded prestressed pile splice positioning device, characterized in that: The system includes a connecting plate (10), on which a guide assembly (20) is provided. Fixed plates (30) are provided at both ends of the connecting plate (10). One of the fixed plates (30) is hinged to a rotating plate (40) at the end away from the connecting plate (10) via a hinge shaft (31). The other fixed plate (30) is provided with a fixing assembly (50) for fixing the end of the rotating plate (40) away from the hinge shaft (31). A clamping frame (60) is horizontally slidably provided on the rotating plate (40). A column (70) is provided on the fixed plate (30). A first threaded hole is provided at the top of the column (70). A first threaded rod (71) is spirally provided in the first threaded hole. A handle (72) is provided at the upper end of the first threaded rod (71). A limiting plate (73) is rotatably sleeved on the rod body of the first threaded rod (71) above the column (70).

2. The spring-loaded prestressed pile splice positioning device according to claim 1, characterized in that: The limiting plate (73) has a through hole on one side and a screw hole on the other side. The limiting plate (73) is rotatably sleeved on the first threaded rod (71) through the through hole. A screw rod (74) is spirally arranged in the screw hole. A rotating cap (75) is provided at the upper end of the screw rod (74).

3. The spring-loaded prestressed pile splice positioning device according to claim 2, characterized in that: The lower end of the screw rod (74) is provided with a contact block (76), which is hemispherical.

4. The spring-loaded prestressed pile splice positioning device according to claim 3, characterized in that: The fixing component (50) includes a pin (51) and two horizontal plates (52) vertically spaced on the fixing plate (30). The horizontal plates (52) have pin holes vertically opened. The rotating plate (40) has a round hole vertically opened on the side away from the hinge axis (31). The pin (51) is inserted into the pin hole and the round hole.

5. The spring-loaded prestressed pile splice positioning device according to claim 1, characterized in that: The connecting plate (10) has two sliding holes. The clamping frame (60) includes a sliding rod (61) that is slidably disposed in the sliding hole. The two sliding rods (61) are connected to a pressure plate (62) at one end near the connecting plate (10). The connecting plate (10) has a second threaded hole horizontally disposed. A second threaded rod (41) is spirally disposed in the second threaded hole. One end of the second threaded rod (41) is rotatably connected to the pressure plate (62), and the other end is provided with a control panel (42).

6. The spring-loaded prestressed pile splice positioning device according to claim 1, characterized in that: The guide assembly (20) includes two L-shaped plates (21) respectively disposed at both ends of the connecting plate (10). One bottom of the L-shaped plate (21) is connected to the connecting plate (10), and the other bottom is connected to the adjacent fixing plate (30).

7. A spring-loaded prestressed pile splice positioning device according to claim 6, characterized in that: Both sections of the L-shaped plate (21) are provided with inclined plates (22) at their top. The inclined plates (22) are arranged obliquely upwards from the L-shaped plate (21) to the outside, and the two inclined plates (22) are connected on adjacent sides.

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