A verticality monitoring device for PHC precast pipe pile

Abstract

The application discloses a verticality monitoring device for PHC precast pipe pile and relates to the technical field of pile foundation construction. The technical scheme is characterized by comprising a detection mechanism, wherein the detection mechanism comprises a stabilizing ring frame for sleeving on the pipe pile, multiple groups of measuring needles which are uniformly arranged on the stabilizing ring frame, and multiple groups of feedback components connected with the measuring needles; when the device is in a monitoring state, the measuring needles are in contact with the outer surface of the pipe pile; the feedback components are signal-connected with an integrated module, and the integrated module is provided with an alarm; when the pipe pile is inclined, the corresponding side measuring needle triggers the feedback component, so that the feedback component transmits a signal to the alarm to give an alarm. In the pile sinking process, the stabilizing ring frame is arranged on the periphery of the pipe pile, and multiple groups of measuring needles which are in contact with the outer surface of the pipe pile are arranged on the stabilizing ring frame. When the pile body is inclined in the pile sinking process, the measuring needles trigger the feedback components to give a signal alarm to the alarm, so that the verticality of the pile body can be adjusted, and the pile sinking construction efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of pile foundation construction technology, and specifically to a verticality monitoring device for PHC precast pipe piles. Background Technology

[0002] PHC precast pipe piles are a new type of pile foundation component made using pre-tensioning prestressing technology and centrifugal molding. They are hollow cylindrical precast concrete components with high compressive strength and can provide higher bearing capacity. However, because precast pipe piles need to be driven into the ground using a pile driver, it is difficult for the pile driver to maintain absolute vertical force application. Therefore, pile tilting occurs during the driving process. Tilted piles cannot provide good stress distribution. Consequently, during the driving process, the verticality of the pile needs to be measured after each end is driven in. Currently, this work is carried out manually using surveying instruments and requires multi-point detection. The overall operation is complex, and the detection lacks real-time feedback. It is easy for the pile to be detected tilting when it has already been driven deep into the ground, making subsequent straightening and adjustment work more difficult. This results in slow pile driving progress and low work efficiency.

[0003] In view of this, a design or technical improvement is proposed to solve the above problems.

[0004] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is the closest prior art. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a verticality monitoring device for PHC precast pipe piles.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A verticality monitoring device for PHC precast pipe piles includes a detection mechanism. The detection mechanism includes a stabilizing ring frame for fitting around the pipe pile, multiple sets of measuring needles evenly distributed on the stabilizing ring frame and moving radially limited along the stabilizing ring frame, and multiple sets of feedback components connected to the measuring needles. When the device is in monitoring mode, the measuring needles abut against the outer surface of the pipe pile. The feedback components are signal-connected to an integrated module, and an alarm is installed on the integrated module. When the pipe pile tilts, the corresponding measuring needle touches the feedback component, causing the feedback component to transmit a signal to the alarm to issue an alarm.

[0008] Furthermore, multiple sets of movable sleeves are evenly distributed on the stabilizing ring frame, the measuring needle is sleeved in the movable sleeve and slides within a limited position, and a first spring is provided between the measuring needle and the inner wall of the movable sleeve.

[0009] Further, the feedback assembly comprises a trigger assembly for sending signals to the alarm and a transmission assembly arranged between the measuring needle and the trigger assembly; when the pipe pile is inclined, the corresponding side measuring needle controls the trigger assembly to send signals through the transmission assembly.

[0010] Further, the trigger assembly comprises a base, a signal emitter arranged on the base, and a first switch mounted on the base; the transmission assembly comprises a reversing wheel arranged on the base, a limiting slide rod arranged at the rear end of the measuring needle and movably connected with the movable sleeve, a connecting rope arranged at the end of the limiting slide rod away from the measuring needle and overlapping the reversing wheel, and a pressing block arranged at the end of the connecting rope away from the limiting slide rod and located directly above the first switch; when the detection mechanism works, the pressing block is in contact with the signal emitter to make the first switch in a pressed state, and when all the first switches are in the pressed state, the alarm does not work, and when any one or more groups of the first switches are in a pop-up state, the signal emitter sends signals to the alarm to trigger the alarm.

[0011] Further, the rectification mechanism for rectifying the inclination of the pipe pile is further included, and the rectification mechanism comprises a plurality of groups of traction machines corresponding to the number of feedback assemblies, a sleeve fixing ring sleeved and stably arranged on the outer surface of the pipe pile, and a steel wire rope arranged between the traction machine and the sleeve fixing ring.

[0012] Further, the second switch is further arranged on the integrated module, and when the second switch is triggered and any one or more groups of the first switches are in the pop-up state, the first switch on the corresponding side of the first switch in the pop-up state drives the traction machine to wind the steel wire rope.

[0013] Further, the third switch for turning on and off the integrated module is further included.

[0014] Further, the base is provided with a limiting frame, the limiting frame is provided with a limiting groove for limiting the upward and downward sliding of the signal emitter, the signal emitter is provided with an L-shaped folding plate abutting and sliding with the outer surface of the limiting frame, and the L-shaped folding plate is threadedly connected with a locking screw abutting the outer surface of the limiting frame.

[0015] Further, the stabilizing ring frame and the sleeve fixing ring are respectively composed of two groups of adaptively matched first half rings and second half rings, the first half rings and the second half rings are locked by bolts, and the second half rings are internally provided with rubber pads.

[0016] Further, the bottom of the traction machine is detachably provided with a stabilizing plate for increasing the weight.

[0017] Compared with the prior art, the beneficial effects of this solution are as follows: During the pile driving process, the present invention sets a stabilizing ring frame around the pipe pile and sets multiple sets of measuring needles that abut against the outer surface of the pipe pile on the stabilizing ring frame. When the pile body is tilted during the pile driving process, the tilted side will abut against the measuring needle on the corresponding side. Then, the measuring needle will send a signal to the alarm through the active drive feedback component, which can quickly detect the tilt of the pile body, thereby facilitating the adjustment of the verticality of the pile body and improving the efficiency of pile driving construction.

[0018] The present invention also includes a correction mechanism that works in conjunction with the detection mechanism and uses a switch signal for linkage control. When the detection mechanism detects that the pile body is tilted, the traction machine on the corresponding side will be activated to automatically correct and straighten the pile body, thus avoiding the problem that manual straightening of the pile body is not accurate enough. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0020] Figure 1 This is a frontal three-dimensional schematic diagram of an embodiment of the present invention;

[0021] Figure 2 This is a top view schematic diagram of the cooperation relationship between the detection mechanism and the pipe pile in an embodiment of the present invention;

[0022] Figure 3 This is a front view schematic diagram of the detection mechanism in an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the internal structure of the movable sleeve in an embodiment of the present invention;

[0024] Figure 5 This is a schematic diagram illustrating the cooperation relationship between the transmission component and the triggering component in an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the signal transmitter in an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the system framework of an embodiment of the present invention.

[0027] In the diagram: 1. Stabilizing ring frame; 11. Measuring needle; 12. Alarm; 2. Movable sleeve; 21. First spring; 3. Base; 31. Signal transmitter; 32. First switch; 4. Reversing wheel; 41. Limiting slide bar; 42. Connecting rope; 43. Pressure block; 5. Traction machine; 51. Locking ring; 52. Steel wire rope; 53. Second switch; 54. Third switch; 6. Limiting frame; 61. Limiting groove; 62. L-shaped folding plate; 63. Locking screw; 7. First half ring; 71. Second half ring; 72. Bolt assembly; 8. Stabilizing plate. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] like Figures 1-7 The verticality monitoring device for PHC precast pipe piles includes a detection mechanism. The detection mechanism comprises a stabilizing ring 1 fitted around the pipe pile, multiple sets of measuring needles 11 evenly distributed on the stabilizing ring 1 and radially limited in their movement, and multiple sets of feedback components connected to the measuring needles 11. The measuring needles 11 can be configured with a minimum of three sets, allowing them to evenly abut from all sides of the pile body; in this embodiment, four sets are used. The feedback components are signal-connected to an integrated module, which is equipped with an alarm 12. The integrated module can be a portable remote control or mounted on the control panel of a pile driver. Multiple sets of movable sleeves 2 are evenly distributed on the stabilizing ring 1. The measuring needles 11 are fitted within the movable sleeves 2 and limited in their sliding motion. A first spring 21 is provided between the measuring needles 11 and the inner wall of the movable sleeves 2 during pile driving operations. First, the stabilizing ring 1 is fitted onto the outside of the pipe pile, so that the measuring needle 11 is pushed against the outer surface of the pile body under the action of the first spring 21. Then, the feedback component is arranged and connected with the measuring needle 11. When the pile body is tilted during the pile driving process, the tilted side will push the corresponding measuring needle 11 to move, while the measuring needle 11 on the opposite side will continue to extend forward under the action of the first spring 21. The movement of the measuring needle 11 is then received by the feedback component and transmitted to the alarm 12 on the integrated module in the form of a remote signal to trigger an alarm. The pile driver operator can then quickly receive feedback on the tilt of the pile body, and then quickly stop the pile driving operation and straighten and adjust the pile foundation. This avoids the situation where the pile body is tilted when it is driven into the ground, which makes it difficult to straighten and adjust. At the same time, it optimizes the manual inspection process and improves the pile driving efficiency.

[0030] In one embodiment, the feedback component includes a triggering component that sends a signal to the alarm 12 and a transmission component disposed between the measuring needle 11 and the triggering component; when the pipe pile tilts, the corresponding measuring needle 11 controls the triggering component to send a signal through the transmission component. The triggering component includes a base 3, a signal transmitter 31 disposed on the base 3, and a first switch 32 mounted on the base 3. The first switch 32 is a spring switch in the prior art, which can automatically spring up in an unpressurized state; the transmission component includes a reversing wheel 4 disposed on the base 3, a limiting slide bar 41 disposed at the rear end of the measuring needle 11 and movably connected to the movable sleeve 2, a connecting rope 42 disposed at the end of the limiting slide bar 41 away from the measuring needle 11 and lapped on the reversing wheel 4, and a pressure block 43 disposed at the end of the connecting rope 42 away from the limiting slide bar 41 and located directly above the first switch 32; when the detection mechanism is working, the pressure block 43 contacts the signal transmitter 31, causing the first switch 32 to be in a pressurized state, and when the first switch 32 is turned on... When all switches 32 are under pressure, the alarm 12 does not work. When any one or more sets of first switches 32 are in the pop-up state, the signal transmitter 31 sends a signal to the alarm 12 to trigger the alarm. The specific working principle of the detection mechanism is as follows: After the verticality is calibrated before the pipe pile is driven, the measuring needle 11 is used to abut against its outer surface, and the base 3 is placed in an appropriate position so that the connecting rope 42 is taut and attached to the reversing wheel 4, and the pressure block 43 is pressed on the first switch 32 to ensure that the alarm 12 does not work. When the pile body is tilted, it will abut against the measuring needle 11 on one side and cause it to retract into the movable sleeve 2, while the measuring needle 11 on the other side continues to extend under the push of the first spring 21. At this time, the limiting slide bar 41 at the rear end of the measuring needle 11 moves along with it and pulls the pressure block 43 through the connecting rope 42 to separate it from the signal transmitter 31. Then the first switch 32 pops up, and the signal transmitter 31 sends a signal to the alarm 12 to trigger the alarm and remind the pile body of tilt.

[0031] In one embodiment, a correction mechanism for correcting the tilt of the pipe pile is also included. The correction mechanism includes multiple sets of traction machines 5 corresponding to the number of feedback components, a retaining ring 51 sleeved and stabilized on the outer surface of the pipe pile, and a steel wire rope 52 disposed between the traction machine 5 and the retaining ring 51. The traction machine 5 and the base 3 are synchronously configured as four sets, and are located on the extension line of the connection line between the base 3 and the center of the pipe pile in each set. The integrated module is also provided with a second switch 53. When the second switch 53 is triggered and any one or more sets of first switches 32 are in the open state, the traction machine 5 on the side corresponding to the open first switch 32 starts to wind up the steel wire rope 52. When the signal transmitter 31 sends a signal to the alarm 12 to trigger the alarm, the operator first stops the pile driving operation of the pile driver, and then directly triggers the second switch 53 on the integrated module, and then... When the first switch 32 at the top is in the pop-up state, the traction machine 5 on the corresponding side of the base 3 will start and pull the retaining ring 51 by winding the steel wire rope 52. The retaining ring 51 will automatically correct and straighten the pipe pile. During the straightening process, the pile will push the measuring needle 11 on the opposite side of the tilted side to retract into the movable sleeve 2, thereby limiting the sliding rod 41 to move back. The connecting rope 42 will be stretched and tightened under the gravity of the pressure block 43. At the same time, the pressure block 43 will move down and continue to press back onto the first switch 32, thereby stopping the winding operation of the traction machine 5 on the corresponding side. The pipe pile will stop rotating in this direction. With the setting of four sets of traction machines 5, the pipe pile can be reset by the traction of two sets of traction machines 5 in the form of pulling, no matter which direction it is tilted. Moreover, the traction machine 5 will automatically stop working when the pipe pile reaches the calibration position before pile driving, ensuring the accuracy of the reset.

[0032] In one embodiment, a third switch 54 is also included, which is connected to the integrated module for turning the integrated module on and off. Since the detection mechanism needs to be installed before correction, the first switch 32 on the signal transmitter 31 is in the pop-up state before it is fully installed. In order to ensure that the alarm 12 does not alarm at this time, the third switch 54 is set so that it can cut off the power supply to the integrated module. Then, when the detection mechanism is installed and all the first switches 32 are pressed, the third switch 54 is controlled to start the integrated module, so as to avoid the alarm 12 from continuously alarming and affecting the operation.

[0033] In one embodiment, a limiting frame 6 is provided on the base 3. The limiting frame 6 has a limiting groove 61 for the signal transmitter 31 to slide up and down. The signal transmitter 31 is provided with an L-shaped folding plate 62 that slides against the outer surface of the limiting frame 6. A locking screw 63 that abuts against the outer surface of the limiting frame 6 is threaded onto the L-shaped folding plate 62. The pre-installation of the detection mechanism requires ensuring that the connecting rope 42 is fully taut while the pressure block 43 is pressed against the first switch 32. This process requires adjusting the position of the base 3. To avoid the inconvenience caused by frequently adjusting the position of the base 3, a limiting frame 6 is provided on the base 3, allowing the signal transmitter 31 to slide up and down within the limiting groove 61 on the limiting frame 6. After the pressure block 43 is first used to tighten the connecting rope 42 by gravity, the height of the signal transmitter 31 is adjusted so that the pressure block 43 presses against the first switch 32. The height of the signal transmitter 31 is then locked using the locking screw 63, thereby improving the ease of installation of the detection mechanism.

[0034] In one embodiment, the stabilizing ring frame 1 and the retaining ring 51 are respectively composed of two sets of adapted mating first half-rings 7 and second half-rings 71, and the first half-rings 7 and second half-rings 71 are locked by bolt group 72. By setting them in a mating form, the stabilizing ring frame 1 and the retaining ring 51 can be easily installed on the periphery of the pipe pile. At the same time, they can be easily disassembled after the pile is driven, which improves work efficiency. Meanwhile, the second half-ring 71 is provided with a rubber pad inside to ensure that it can clamp and secure the pile body after mating, so that it can stably follow the movement of the pile body when the pile body sinks.

[0035] In one embodiment, a stabilizing plate 8 for increasing weight is detachably provided at the bottom of the traction machine 5. In actual operation, stabilizing plates 8 of different weights can be installed according to different specifications of pipe piles to ensure the stability of the traction machine 5 when pulling the pipe pile.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A verticality monitoring device for PHC precast pipe piles, characterized in that: The testing mechanism includes a stabilizing ring (1) for fitting around the pipe pile, multiple sets of measuring needles (11) evenly distributed on the stabilizing ring (1) and moving radially along the stabilizing ring (1), and multiple sets of feedback components connected to the measuring needles (11). When the device is in monitoring mode, the measuring needle (11) abuts against the outer surface of the pipe pile; The feedback component signal is connected to an integrated module, and an alarm (12) is installed on the integrated module. When the pipe pile tilts, the corresponding measuring needle (11) touches the feedback component, causing the feedback component to transmit a signal to the alarm (12) to issue an alarm. Multiple sets of movable sleeves (2) are evenly distributed on the stabilizing ring frame (1). The measuring needle (11) is sleeved in the movable sleeve (2) and limited to sliding. A first spring (21) is provided between the measuring needle (11) and the inner wall of the movable sleeve (2). The feedback component includes a triggering component that sends a signal to the alarm (12) and a transmission component disposed between the measuring needle (11) and the triggering component; when the pipe pile tilts, the measuring needle (11) on its corresponding side controls the triggering component to send a signal through the transmission component; The triggering component includes a base (3), a signal transmitter (31) disposed on the base (3), and a first switch (32) mounted on the base (3). The transmission assembly includes a reversing wheel (4) on the base (3), a limiting slide bar (41) located at the rear end of the measuring needle (11) and movably connected to the movable sleeve (2), a connecting rope (42) located at the end of the limiting slide bar (41) away from the measuring needle (11) and attached to the reversing wheel (4), and a pressure block (43) located at the end of the connecting rope (42) away from the limiting slide bar (41) and directly above the first switch (32). When the detection mechanism is working, the pressure block (43) contacts the signal transmitter (31) so that the first switch (32) is in a pressed state. When all the first switches (32) are in a pressed state, the alarm (12) does not work. When any one or more sets of first switches (32) are in a popped state, the signal transmitter (31) sends a signal to the alarm (12) to trigger the alarm.

2. The verticality monitoring device for PHC precast pipe piles according to claim 1, characterized in that: It also includes a correction mechanism for correcting the tilt of the pipe pile, the correction mechanism including multiple traction machines (5) corresponding to the number of feedback components, a sleeve ring (51) sleeved and stabilized on the outer surface of the pipe pile, and a steel wire rope (52) disposed between the traction machine (5) and the sleeve ring (51).

3. The verticality monitoring device for PHC precast pipe piles according to claim 2, characterized in that: The integrated module is also provided with a second switch (53). When the second switch (53) is triggered and any one or more sets of first switches (32) are in the open state, the traction machine (5) on the side corresponding to the open first switch (32) starts to wind up the wire rope (52).

4. The verticality monitoring device for PHC precast pipe piles according to claim 2, characterized in that: It also includes a third switch (54) that is connected to the integrated module for turning the integrated module on and off.

5. The verticality monitoring device for PHC precast pipe piles according to claim 1, characterized in that: The base (3) is provided with a limiting frame (6), the limiting frame (6) is provided with a limiting groove (61) for the signal transmitter (31) to slide up and down, the signal transmitter (31) is provided with an L-shaped folding plate (62) that slides against the outer surface of the limiting frame (6), and a locking screw (63) that abuts against the outer surface of the limiting frame (6) is threaded onto the L-shaped folding plate (62).

6. The verticality monitoring device for PHC precast pipe piles according to claim 2, characterized in that: The stabilizing ring frame (1) and the retaining ring (51) are respectively composed of two sets of matching first half rings (7) and second half rings (71), and the first half ring (7) and the second half ring (71) are locked by bolt group (72), and a rubber pad is provided inside the second half ring (71).

7. The verticality monitoring device for PHC precast pipe piles according to claim 2, characterized in that: The bottom of the traction machine (5) is detachably equipped with a stabilizing plate (8) to increase weight.

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