A prefabricated pipe pile installation accurate positioning device

Abstract

This invention relates to the field of highway bridge construction technology, specifically a precise positioning device for precast pipe pile installation. It includes a U-shaped fixing frame, four mounting plates slidably connected to the four sides of the fixing frame, a first threaded rod connected to each mounting plate, and multiple first limiting rods fixedly connected to both sides of the first threaded rods on the mounting plates. First driven gears are rotatably connected inside each of the four sides of the fixing frame, and control motors are fixedly connected to each of the four sides of the fixing frame. A first drive gear is fixedly connected to the shaft end of each control motor. A positioning plate is fixedly connected to the lower end of the mounting plates, and a limit switch is installed on the positioning plate. A clamping plate is slidably connected to the mounting plate, and positioning posts are installed at each of the four corners of the fixing frame. This invention effectively solves the problem of the cumbersome traditional method of adjusting the positioning by drawing cross lines during pile planting. It can quickly and accurately position the pile and quickly and effectively fix it to the ground to prevent displacement.

Description

Technical Field

[0001] This invention relates to the field of highway bridge construction technology, specifically a precise positioning device for the installation of precast pipe piles. Background Technology

[0002] Precast pipe piles are mainly divided into two categories: precast concrete piles and steel piles. Precast concrete piles can withstand large loads, are strong and durable, and have a fast construction speed, making them one of the most widely used pile types. However, their construction has a significant impact on the surrounding environment. Commonly used types include solid concrete square piles and prestressed concrete hollow pipe piles.

[0003] There are high requirements for the verticality of the pile body when planting the pile. During the construction process, the verticality of the pile body must be corrected while the pile is driven down to avoid damage to the pipe pile due to the tilt of the pile body. If the installation position deviates from the preset position, the pipe pile needs to be pulled out and reinstalled. The traditional method of adjusting the positioning by pulling cross lines is relatively cumbersome.

[0004] Therefore, the present invention provides a precise positioning device for the installation of precast pipe piles to solve this problem. Summary of the Invention

[0005] In order to overcome the shortcomings of the prior art, the present invention provides a precise positioning device for the installation of precast pipe piles, which effectively solves the problem that the traditional method of adjusting the positioning by pulling cross lines is cumbersome during pile planting.

[0006] This invention relates to a precise positioning device for precast pipe pile installation, comprising a U-shaped fixing frame, on which a positioning structure is mounted. The positioning structure includes four mounting plates slidably connected to the four sides of the fixing frame. A first threaded rod is fixedly connected to each mounting plate. Multiple first limiting rods located on both sides of the first threaded rod are fixedly connected to the mounting plates. The first limiting rods are slidably connected to the fixing frame. Each of the four sides of the fixing frame has a first driven gear rotatably connected to the first threaded rod. A control motor is fixedly connected to each of the four sides of the fixing frame. The shaft end of the control motor is fixedly connected to a first driving gear meshing with the first driven gear. A positioning plate is fixedly connected to the lower end of the mounting plate. A limit switch is mounted on the positioning plate and electrically connected to the control motor. The module includes a control motor electrically connected to a control module, an arc-shaped clamping plate slidably connected to a mounting plate, a second threaded rod fixedly mounted on the clamping plate, and multiple second limiting rods distributed on both sides of the second threaded rod fixedly connected to the clamping plate. The second limiting rods are slidably connected to the mounting plate, a second driven gear threadedly connected to the second threaded rod is rotatably connected to the mounting plate, a pressure motor is fixedly mounted on the mounting plate, a second drive gear meshing with the second driven gear is fixedly connected to the shaft end of the pressure motor, a pressure sensor is mounted on the clamping plate, and the pressure sensor is electrically connected to the control module. The pressure motor is also electrically connected to the control module. Positioning posts are installed at each of the four corners of the fixing frame, and the fixing frame and the positioning posts are connected by a position adjustment structure.

[0007] Preferably, the clamping plate is rotatably connected to a plurality of sliding wheels, and the pressure sensor is mounted on the sliding wheels.

[0008] Preferably, the position adjustment structure includes adjustment slots formed at the four corners of the fixed frame, an adjustment bracket is slidably connected inside the adjustment slot, a sliding block is bolted to the top of the positioning column, the sliding block is slidably connected inside the adjustment bracket, and a fixing structure for controlling the adjustment bracket is installed inside the fixed frame.

[0009] Preferably, the fixing structure includes a locking bracket slidably connected inside the adjusting bracket. Multiple first locking teeth are fixedly connected to the side of the locking bracket away from the adjusting bracket. A locking plate is slidably connected inside the fixing bracket. Multiple first mating teeth that cooperate with the first locking teeth are fixedly connected to the locking plate. Locking threaded rods are threadedly connected to each of the four corners of the fixing bracket. One end of each locking threaded rod is rotatably connected to the locking plate. A compression spring is installed between the locking bracket and the adjusting bracket. Clamping plates are slidably connected to each other inside the adjusting bracket. Multiple second locking teeth are fixedly installed on the side of the clamping plates that are close to each other. Multiple slots that cooperate with the second locking teeth are opened on both sides of the sliding block. A return spring is installed between the clamping plate and the adjusting bracket. A control block with a trapezoidal cross-section is fixedly connected to the side of the two clamping plates that are far from each other. Pushing grooves that cooperate with the control blocks are opened on both sides of the locking bracket.

[0010] Preferably, the positioning post has two flat surfaces on both sides, and multiple mounting holes are formed vertically on these surfaces. A clamping block is slidably connected inside each mounting hole, and a clamping threaded shaft is rotatably connected inside the positioning post. Multiple clamping plates are threaded onto the clamping threaded shaft, and the clamping plates and clamping blocks are connected by a connecting rod. A rotating device is provided at the upper end of the clamping threaded shaft.

[0011] Preferably, the rotating device includes a rotating bar slidably connected to the top end of the clamping threaded shaft.

[0012] Preferably, the positioning post consists of two arc-shaped outer shells, and the bottom ends of the two outer shells are fixedly connected by a tapered bottom cover thread.

[0013] Preferably, mudguards are installed on both the upper and lower sides of the mounting hole, and a compression spring is installed between the mudguards and the positioning post.

[0014] Preferably, the fixing frame consists of a U-shaped support frame and a connecting frame, and the support frame and the connecting frame are detachably connected.

[0015] This invention addresses the cumbersome traditional method of adjusting positioning using a crosshair by adding a fixing frame, mounting plate, first threaded rod, first limit rod, first driven gear, control motor, first drive gear, positioning plate, limit switch, clamping plate, second threaded rod, second limit rod, second driven gear, pressure motor, second drive gear, pressure sensor, and positioning column. Furthermore, by adding an adjustment groove, adjustment bracket and sliding block, locking bracket, first locking tooth, locking plate, first mating tooth, locking threaded rod, compression spring, clamping plate, second locking tooth, locking groove, return spring, control block, and pushing groove, the entire fixing frame can be displaced during installation, facilitating position adjustment. Finally, by adding a plane, mounting hole, clamping block, clamping threaded shaft, clamping plate, and connecting rod, the positioning column can be quickly fixed after being inserted into the ground, preventing movement. This invention enables rapid and precise positioning of the pile and effectively fixes it to the ground, preventing displacement. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall installation of the present invention;

[0017] Figure 2 This is a schematic diagram of the positioning structure of the present invention;

[0018] Figure 3 This is a cross-sectional schematic diagram of the fixing frame of the present invention;

[0019] Figure 4 For the present invention Figure 3 Enlarged view of a portion of point A in the middle;

[0020] Figure 5 This is a cross-sectional schematic diagram of the adjustment bracket of the present invention;

[0021] Figure 6 This is a schematic diagram of the positioning post of the present invention;

[0022] Figure 7 This is a cross-sectional view of the positioning column of the present invention;

[0023] Figure 8 For the present invention Figure 7 Enlarged view of a portion of point B in the middle;

[0024] Figure 9 This is a schematic diagram of the internal structure of the positioning column of the present invention;

[0025] 1. Fixing bracket; 2. Mounting plate; 3. First threaded rod; 4. First limit rod; 5. First driven gear; 6. Control motor; 7. First drive gear; 8. Positioning plate; 9. Limit switch; 10. Clamping plate; 11. Second threaded rod; 12. Second limit rod; 13. Second driven gear; 14. Pressing motor; 15. Second drive gear; 16. Positioning pin; 17. Sliding wheel; 18. Adjustment groove; 19. Adjustment bracket; 20. Sliding block; 21. Locking bracket; 22. 23. First locking tooth; 24. Locking plate; 25. First mating tooth; 26. Locking threaded rod; 27. Compression spring; 28. Clamping plate; 29. ​​Second locking tooth; 30. Locking groove; 31. Return spring; 32. Control block; 33. Push groove; 34. Mounting hole; 35. Pressing block; 36. Pressing threaded shaft; 37. Pressing plate; 38. Connecting rod; 39. Rotating rod; 40. Bottom cover; 41. Mudguard; 42. Compression spring; 43. Outer shell; 44. Bearing frame; 45. Connecting frame. Implementation

[0026] The foregoing and other technical contents, features and effects of the present invention are described in conjunction with the appendix below. Figures 1 to 9 The detailed description of the embodiments will clearly demonstrate this. All structural details mentioned in the following embodiments are based on the accompanying drawings.

[0027] In the description of this invention, it should be understood that the terms "upper," "middle," "outer," "inner," etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0028] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0029] Example 1, according to Figures 1 to 9As shown, a precise positioning device for precast pipe pile installation includes a U-shaped fixing frame 1. A positioning structure is mounted on the fixing frame 1, comprising four mounting plates 2 slidably connected to the four sides of the fixing frame 1. A first threaded rod 3 is fixedly connected to each mounting plate 2. Multiple first limiting rods 4 located on both sides of the first threaded rod 3 are fixedly connected to the mounting plate 2. The first limiting rods 4 are slidably connected to the fixing frame 1 and are used to limit the position of the mounting plates 2. First driven gears 5, threadedly connected to the first threaded rods 3, are rotatably connected to the interior of each of the four sides of the fixing frame 1. Control motors 6 are fixedly connected to each of the four sides of the fixing frame 1. The control motors 6 are externally powered, and a first driving gear 7, meshing with the first driven gear 5, is fixedly connected to the shaft end of the control motor 6. A positioning plate 8 is fixedly connected to the lower end of the mounting plate 2. In use, the positioning plate 8 is inserted into the hole. A limit switch 9 is mounted on the positioning plate 8 and electrically connected to the control module. The control motor 6 is also electrically connected to the control module. In use, after drilling the hole, the device is placed... When the device is activated at the hole where the stake needs to be planted, the control module starts the control motor 6. The control motor 6 drives the first drive gear 7 to rotate at the same speed. The first drive gear 7 drives the first driven gear 5 to rotate. The rotation of the first driven gear 5 drives the first threaded rod 3 to slide closer to the edge of the fixing frame 1. The first threaded rod 3 drives the mounting plate 2 to move synchronously. At this time, the mounting plates 2 move synchronously in a direction away from each other. When the two limit switches 9 on the two opposite positioning plates 8 simultaneously contact the edge of the hole, the control module controls the two corresponding control motors 6 to stop, restricting the positioning plate 8 that is attached to the edge of the hole to the current position. At this time, the mounting plate 2 is also fixed in the current position. When only one of the two limit switches 9 on the two opposite positioning plates 8 contacts the edge of the hole first, the two corresponding control motors 6 do not stop working. The two control motors 6 pull the fixing frame 1 to move simultaneously until the two limit switches 9 on the two opposite positioning plates 8 both contact the edge of the hole, thus ensuring that the center position of the four mounting plates coincides with the center position of the hole.An arc-shaped clamping plate 10 is slidably connected to the mounting plate 2. The clamping plate 10 is arc-shaped to better fit the precast pipe pile. A second threaded rod 11 is fixedly installed on the clamping plate 10. Multiple second limiting rods 12 distributed on both sides of the second threaded rod 11 are fixedly connected to the clamping plate 10. The second limiting rods 12 are slidably connected to the mounting plate 2 and are used to limit the sliding direction of the clamping plate 10. A second driven gear 13 threaded to the second threaded rod 11 is rotatably connected to the mounting plate 2. A pressure motor 14 is fixedly installed on the mounting plate 2. A second drive gear 15 meshing with the second driven gear 13 is fixedly connected to the shaft end of the pressure motor 14. A pressure sensor is installed on the clamping plate 10 and electrically connected to the control module. The pressure motor 14 is electrically connected to the control module and is powered by an external power source. In use, when four After the positioning plates 8 all contact the edge of the hole, the control module controls the four clamping motors 14 to start simultaneously. The clamping motors 14 drive the second drive gear 15 to rotate at the same speed. The rotation of the second drive gear 15 drives the second driven gear 13 to rotate. The rotation of the second driven gear 13 drives the second threaded rod 11 to slide away from the mounting plate 2. At the same time, the second threaded rod 11 drives the clamping plates 10 to move towards each other synchronously. When the two clamping plates 10 contact the outer wall of the precast pipe pile to be implanted and the pressure sensor reaches a fixed pressure value, the two corresponding clamping motors 14 stop rotating, thus pushing it to the center position. Positioning posts 16 are installed at the four corners of the fixing frame 1. In use, the positioning posts 16 are fixed to the ground to fix the device. The fixing frame 1 and the positioning posts 16 are connected by a position adjustment structure.

[0030] In this embodiment, after drilling the hole, the device is placed on the hole where the pile needs to be planted. The device is then started, and the control module controls the control motor 6 to start. The control motor 6 drives the first drive gear 7 to rotate at the same speed. The first drive gear 7 drives the first driven gear 5 to rotate. The rotation of the first driven gear 5 drives the first threaded rod 3 to slide closer to the edge of the fixing frame 1. The first threaded rod 3 drives the mounting plate 2 to move synchronously. At this time, the mounting plates 2 move synchronously in a direction away from each other. When the two limit switches 9 on the two opposite positioning plates 8 simultaneously contact the edge of the hole, the control module controls the two corresponding control motors 6 to stop, restricting the positioning plate 8 that is attached to the edge of the hole to the current position. At this time, the mounting plate 2 is also fixed in the current position. When only one of the two limit switches 9 on the two opposite positioning plates 8 contacts the edge of the hole first, the two corresponding control motors 6 do not stop working. The two control motors 6 pull the fixing frame 1 to move simultaneously until the two limit switches 9 on the two opposite positioning plates 8 both contact the edge of the hole, thereby ensuring that the center position of the four mounting plates coincides with the center position of the hole.

[0031] Once all four positioning plates 8 have contacted the edge of the hole, the control module controls the four clamping motors 14 to start simultaneously. The clamping motors 14 drive the second drive gear 15 to rotate at the same speed. The rotation of the second drive gear 15 drives the second driven gear 13 to rotate. The rotation of the second driven gear 13 drives the second threaded rod 11 to slide away from the mounting plate 2. At the same time, the second threaded rod 11 drives the clamping plates 10 to move towards each other in a synchronized manner. When the two clamping plates 10 contact the outer wall of the precast pipe pile to be implanted and the pressure sensor reaches a fixed pressure value, the two corresponding clamping motors 14 stop rotating, thereby pushing it to the center position, thus achieving precise installation and positioning.

[0032] In Example 2, based on Example 1, when the clamping plate 10 clamps the outer wall of the precast pipe pile, the friction is relatively large when the precast pipe pile is transported into the excavated hole. Therefore, this example provides a roller structure to solve the above problem. Specifically, multiple sliding wheels 17 are rotatably connected on the clamping plate 10. Pressure sensors are installed on the sliding wheels 17. In use, after the sliding wheel 17 contacts the precast pipe pile, the pressure value of the pressure sensor reaches the predetermined pressure value, and the precast pipe pile is transported downwards. The sliding wheel 17 decreases, and the friction between the precast pipe pile and the clamping plate 10 is reduced.

[0033] In Example 3, based on Example 1, this example provides an adjustment structure to achieve overall displacement of the fixed frame when adjusting the installation position, making it easier to adjust its position. Specifically, the position adjustment structure includes adjustment grooves 18 opened at the four corners of the fixed frame 1. Adjustment brackets 19 are slidably connected to the inside of the adjustment grooves 18. The top of the positioning column 16 is connected to a sliding block 20 by bolts. The sliding block 20 is slidably connected to the inside of the adjustment bracket 19. A fixing structure for controlling the adjustment bracket 19 is installed inside the fixed frame 1.

[0034] The fixing structure includes a locking bracket 21 slidably connected inside the adjusting bracket 19. Multiple first locking teeth 22 are fixedly connected to the side of the locking bracket 21 away from the adjusting bracket 19. A locking plate 23 is slidably connected inside the fixing frame 1. Multiple first mating teeth 24 that engage with the first locking teeth 22 are fixedly connected to the locking plate 23. Locking threaded rods 25 are threadedly connected to each of the four corners of the fixing frame 1. One end of the locking threaded rod 25 is rotatably connected to the locking plate 23, and the other end is fixedly connected to a rotating handle. A compression spring 26 is installed between the locking bracket 21 and the adjusting bracket 19. In the initial position, under the action of the compression spring 26, the locking bracket 21 is pushed towards the locking plate 23, and the first locking teeth 22 and the first mating teeth 24 do not contact each other. The adjusting bracket 19 can slide freely inside the adjusting groove 18. When the locking threaded rod 25 is rotated, it pushes the locking plate 23 towards the locking bracket 21, causing the first locking teeth 22 to engage with the first mating teeth 24, thereby adjusting the bracket 19. 19 is fixed in its current position. A clamping plate 27 is slidably connected inside the adjusting bracket 19. Multiple second locking teeth 28 are fixedly installed on the side of the clamping plates 27 that are close to each other. Multiple slots 29 that mate with the second locking teeth 28 are provided on both sides of the sliding block 20. A return spring 30 is installed between the clamping plate 27 and the adjusting bracket 19. In the initial state, the return spring 30 pulls the clamping plate 27 to slide away from the sliding block 20, causing the second locking teeth 28 and the slots 29 to separate, and the two clamping plates 27 move away from each other. One side is fixedly connected to a control block 31 with a trapezoidal cross section. Both sides of the locking bracket 21 are provided with push grooves 32 that cooperate with the control block 31. The push grooves 32 are trapezoidal. In the initial position, the control block 31 is located inside the push groove 32. When in use, the locking bracket 21 is pushed towards the adjusting bracket 19. The push groove 32 pushes the control block 31 towards the sliding block 20. The clamping plate 27 slides synchronously, so that the second locking tooth 28 is engaged in the slot 29, thereby locking the sliding block 20.

[0035] In this embodiment, after the positioning plate 8 and the clamping plate 10 have both moved to the appropriate positions, the threaded rod 25 is rotated. The locking threaded rod 25 pushes the locking plate 23 to slide closer to the locking bracket 21, so that the first locking tooth 22 engages between the first mating teeth 24, thereby fixing the adjusting bracket 19 in the current position. The locking threaded rod 25 is rotated again, and the locking plate 23 pushes the locking bracket 21 closer to the adjusting bracket 19. The pushing groove 32 pushes the control block 31 closer to the sliding block 20, and the clamping plate 27 slides synchronously, so that the second locking tooth 28 engages inside the slot 29, thereby locking the sliding block 20. After use, the locking threaded rod 25 is rotated in the opposite direction to unlock.

[0036] In Example 4, based on Example 1, the positioning post 16 needs to be inserted into the ground to fix the device during use. This fixing method is unstable and easily causes the device to move during use, resulting in reduced accuracy. Therefore, this example provides a clamping and fixing device to solve the above problems. Specifically, the two sides of the positioning post 16 are set as planes, and multiple mounting holes 33 are opened vertically on the planes. The mounting holes 33 are rectangular, and a clamping block 34 is slidably connected inside the mounting holes 33. The end of the clamping block 34 near the mounting hole 33 is set as an isosceles triangle. A clamping threaded shaft 35 is rotatably connected inside the positioning post 16. Multiple clamping plates 36 are threadedly connected to the clamping threaded shaft 35. The clamping plates 36 and the clamping blocks 34 are connected by a connecting rod 37. A rotating device is provided at the upper end of the clamping threaded shaft 35.

[0037] The rotating device includes a rotating rod 38 that is slidably connected to the top of the clamping threaded shaft 35.

[0038] In this embodiment, the positioning post 16 is inserted into the ground, and the rotating rod 38 is rotated to drive the clamping threaded shaft 35 to rotate. The rotation of the clamping threaded shaft 35 causes the clamping plate 36 to slide downward. Under the action of the clamping plate 36 and the connecting rod 37, the clamping block 34 is pushed to slide away from the positioning post 16. The clamping block 34 squeezes the surrounding soil away from the positioning post 16, thereby achieving a quick and firm positioning effect. After use, the clamping block 34 is less likely to carry a lot of soil into the device, reducing the number of times the device needs to be maintained and cleaned.

[0039] In Example 5, based on Example 4, the internal structure of the positioning post 16 is not easy to install. This example provides a positioning post structure that is easy to install. Specifically, the positioning post 16 is composed of two arc-shaped outer shells 42. The bottom ends of the two outer shells are fixed by a tapered bottom cover 39 threaded connection. This arrangement makes it easy to install the internal structure of the positioning post 16 into the positioning post 16.

[0040] In Example 6, based on Example 4, when the clamping block 34 is retracted into the positioning post 16 after use, soil can easily enter the positioning post 16 along the inclined surface of the clamping block 34. Mudguards 40 are installed on both the upper and lower sides of the mounting hole 33, and a clamping spring 41 is installed between the mudguard 40 and the positioning post 16. Under the action of the clamping spring 41, the end of the mudguard 40 near the clamping block 34 is always in contact with the side of the clamping block 34, preventing soil from entering the positioning post 16 along the inclined surface of the clamping block 34.

[0041] In Example 7, based on Example 1, when the device needs to be dismantled after use, the height of the precast pipe pile is too high, making it inconvenient to dismantle the device. Therefore, this example provides a structure that is easy to dismantle to solve the above problem. Specifically, the fixing frame 1 is composed of a U-shaped support frame 43 and a connecting frame 44. The support frame 43 and the connecting frame 44 are detachably connected and are connected by bolts. After use, the support frame 43 and the connecting frame 44 can be disassembled.

[0042] In practice:

[0043] After drilling the holes, the device is placed on the holes where the piles need to be planted. The device is then started, and the control module controls the control motor 6 to start. The control motor 6 drives the first drive gear 7 to rotate at the same speed. The first drive gear 7 drives the first driven gear 5 to rotate. The rotation of the first driven gear 5 drives the first threaded rod 3 to slide closer to the edge of the fixing frame 1. The first threaded rod 3 drives the mounting plate 2 to move synchronously. At this time, the mounting plates 2 move synchronously in a direction away from each other. When the two limit switches 9 on the two opposite positioning plates 8 simultaneously contact the edge of the hole, the control module controls the two corresponding control motors 6 to stop, restricting the positioning plates 8 that are attached to the edge of the hole to the current position. At this time, the mounting plate 2 is also fixed in the current position. When only one of the two limit switches 9 on the two opposite positioning plates 8 contacts the edge of the hole first, the two corresponding control motors 6 do not stop working. The two control motors 6 pull the fixing frame 1 to move simultaneously until the two limit switches 9 on the two opposite positioning plates 8 both contact the edge of the hole, thus ensuring that the center position of the four mounting plates coincides with the center position of the hole.

[0044] Then, rotating the rotating rod 38 drives the clamping thread shaft 35 to rotate. The rotation of the clamping thread shaft 35 causes the clamping plate 36 to slide downward. Under the action of the clamping plate 36 and the connecting rod 37, the clamping block 34 is pushed to slide away from the positioning post 16. The clamping block 34 squeezes the surrounding soil away from the positioning post 16, thereby fixing the device in the current position.

[0045] After the positioning plate 8 and the clamping plate 10 have both moved to the appropriate positions, rotate the threaded rod 25. The locking threaded rod 25 pushes the locking plate 23 to slide closer to the locking bracket 21, so that the first locking tooth 22 engages between the first mating teeth 24, thereby fixing the adjusting bracket 19 in the current position. Continue to rotate the locking threaded rod 25, and the locking plate 23 pushes the locking bracket 21 closer to the adjusting bracket 19. The pushing groove 32 pushes the control block 31 closer to the sliding block 20, and the clamping plate 27 slides synchronously, so that the second locking tooth 28 engages inside the groove 29, thereby locking the sliding block 20.

[0046] Once all four positioning plates 8 have contacted the edge of the hole, the control module controls the four clamping motors 14 to start simultaneously. The clamping motors 14 drive the second drive gear 15 to rotate at the same speed. The rotation of the second drive gear 15 drives the second driven gear 13 to rotate. The rotation of the second driven gear 13 drives the second threaded rod 11 to slide away from the mounting plate 2. At the same time, the second threaded rod 11 drives the clamping plates 10 to move towards each other in a synchronized manner. When the two clamping plates 10 contact the outer wall of the precast pipe pile to be implanted and the pressure sensor reaches a fixed pressure value, the two corresponding clamping motors 14 stop rotating, thereby pushing it to the center position, thus achieving precise installation and positioning.

[0047] This invention addresses the cumbersome traditional method of adjusting positioning using a crosshair by adding a fixing frame, mounting plate, first threaded rod, first limit rod, first driven gear, control motor, first drive gear, positioning plate, limit switch, clamping plate, second threaded rod, second limit rod, second driven gear, pressure motor, second drive gear, pressure sensor, and positioning column. Furthermore, by adding an adjustment groove, adjustment bracket and sliding block, locking bracket, first locking tooth, locking plate, first mating tooth, locking threaded rod, compression spring, clamping plate, second locking tooth, locking groove, return spring, control block, and pushing groove, the entire fixing frame can be displaced during installation, facilitating position adjustment. Finally, by adding a plane, mounting hole, clamping block, clamping threaded shaft, clamping plate, and connecting rod, the positioning column can be quickly fixed after being inserted into the ground, preventing movement. This invention enables rapid and precise positioning of the pile and effectively fixes it to the ground, preventing displacement.

Claims

1. A precise positioning device for precast pipe pile installation, comprising a U-shaped fixing frame (1), characterized in that: A positioning structure is installed on the fixed frame (1). The positioning structure includes four mounting plates (2) that are slidably connected to the four sides of the fixed frame (1). A first threaded rod (3) is fixedly connected to the mounting plate (2). A plurality of first limiting rods (4) located on both sides of the first threaded rod (3) are fixedly connected to the mounting plate (2). The first limiting rods (4) are slidably connected to the fixed frame (1). A first driven gear (5) that is threadedly connected to the first threaded rod (3) is rotatably connected to the four sides of the fixed frame (1). A control motor (6) is fixedly connected to the four sides of the fixed frame (1). A first drive gear (7) that meshes with the first driven gear (5) is fixedly connected to the shaft end of the control motor (6). A positioning plate (8) is fixedly connected to the lower end of the mounting plate (2). A limit switch (9) is installed on the positioning plate (8). The limit switch (9) is electrically connected to the control module. The control motor (6) is electrically connected to the control module. An arc-shaped clamping plate (10) is slidably connected to the mounting plate (2). A second threaded rod (11) is fixedly installed on the clamping plate (10). Multiple second limiting rods (12) distributed on both sides of the second threaded rod (11) are fixedly connected to the clamping plate (10). The second limiting rod (12) and the mounting plate (2) are slidably connected. A second driven gear (13) that is threadedly connected to the second threaded rod (11) is rotatably connected to the mounting plate (2). A pressure motor (14) is fixedly installed on the mounting plate (2). A second drive gear (15) that meshes with the second driven gear (13) is fixedly connected to the shaft end of the pressure motor (14). A pressure sensor is installed on the clamping plate (10). The pressure sensor is electrically connected to the control module. The pressure motor (14) is electrically connected to the control module. Positioning columns (16) are installed at the four corners of the fixing frame (1). The fixing frame (1) and the positioning columns (16) are connected by a position adjustment structure.

2. The precise positioning device for precast pipe pile installation according to claim 1, characterized in that: Multiple sliding wheels (17) are rotatably connected to the clamping plate (10), and the pressure sensor is installed on the sliding wheels (17).

3. The precise positioning device for precast pipe pile installation according to claim 1, characterized in that: The position adjustment structure includes adjustment slots (18) opened at the four corners of the fixed frame (1), an adjustment bracket (19) is slidably connected inside the adjustment slot (18), a sliding block (20) is bolted to the top of the positioning column (16), the sliding block (20) is slidably connected inside the adjustment bracket (19), and a fixed structure for controlling the adjustment bracket (19) is installed inside the fixed frame (1).

4. The precise positioning device for precast pipe pile installation according to claim 3, characterized in that: The fixing structure includes a locking bracket (21) slidably connected inside the adjusting bracket (19). Multiple first locking teeth (22) are fixedly connected to the side of the locking bracket (21) away from the adjusting bracket (19). A locking plate (23) is slidably connected inside the fixing frame (1). Multiple first mating teeth (24) that mate with the first locking teeth (22) are fixedly connected to the locking plate (23). Locking threaded rods (25) are threadedly connected to each of the four corners of the fixing frame (1). One end of each locking threaded rod (25) is rotatably connected to the locking plate (23). The locking bracket (21) and the adjusting bracket (19) are connected... The adjusting bracket (19) is equipped with a compression spring (26) and a clamping plate (27) is slidably connected to it. Multiple second teeth (28) are fixedly installed on the side of the clamping plates (27) that are close to each other. Multiple slots (29) that cooperate with the second teeth (28) are opened on both sides of the sliding block (20). A reset spring (30) is installed between the clamping plate (27) and the adjusting bracket (19). A control block (31) with a trapezoidal cross section is fixedly connected on the side of the two clamping plates (27) that are far apart from each other. Push slots (32) that cooperate with the control block (31) are opened on both sides of the locking bracket (21).

5. The precise positioning device for precast pipe pile installation according to claim 1, characterized in that: The positioning post (16) has two flat surfaces on both sides, and multiple mounting holes (33) are provided on the flat surfaces in the vertical direction. A clamping block (34) is slidably connected inside the mounting hole (33). A clamping threaded shaft (35) is rotatably connected inside the positioning post (16). Multiple clamping plates (36) are threadedly connected to the clamping threaded shaft (35). The clamping plates (36) and the clamping blocks (34) are connected by a connecting rod (37). A rotating device is provided at the upper end of the clamping threaded shaft (35).

6. The precise positioning device for precast pipe pile installation according to claim 5, characterized in that: The rotating device also includes a rotating rod (38) that is slidably connected to the top of the pressing threaded shaft (35).

7. The precise positioning device for precast pipe pile installation according to claim 5, characterized in that: The positioning post (16) consists of two arc-shaped outer shells (42), and the bottom ends of the two outer shells are fixed by a conical bottom cover (39) threaded connection.

8. The precise positioning device for precast pipe pile installation according to claim 5, characterized in that: Mudguards (40) are installed on both the upper and lower sides of the mounting hole (33), and a compression spring (41) is installed between the mudguards (40) and the positioning post (16).

9. The precise positioning device for precast pipe pile installation according to claim 1, characterized in that: The fixing frame (1) consists of a U-shaped support frame (43) and a connecting frame (44), which are detachably connected.

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