Intelligent protection monitoring device for pile foundation construction

Abstract

This invention proposes an intelligent protection and monitoring device for pile foundation construction, relating to the field of pile foundation construction safety protection technology. It includes a test column, which is vertically placed inside the pile foundation hole via a support. At least one probe structure is rotatably mounted on the bottom of the test column, with one end of the probe structure inserted into the hole wall. A vibrating bell and a striking mechanism are installed on the test column; the striking mechanism reciprocates to strike the vibrating bell, causing it to vibrate and produce sound. This invention provides an intelligent protection and monitoring device for pile foundation construction. This device is a purely mechanical structure, suitable for the harsh environment of pile foundation construction sites, and unaffected by power outages, mud, or vibration. It can accurately detect minute deformations of the hole wall, amplifying them through transmission to achieve multiple warnings including sound, light, and visual indicators. A ratchet mechanism locks in dangerous states, ensuring uninterrupted warnings. The mechanism can automatically reset and be used repeatedly, requiring no dedicated personnel, balancing monitoring sensitivity and anti-interference capabilities, effectively preventing the risk of pile hole collapse.

Description

Technical Field

[0001] This invention relates to the field of safety protection technology for pile foundation construction, and in particular to an intelligent protection and monitoring device for pile foundation construction. Background Technology

[0002] Pile foundation construction is a common type of foundation in building engineering, mainly including drilled cast-in-place piles and manually excavated piles. During and after borehole formation, the borehole opening area is a high-risk work zone. In actual construction, the borehole wall may partially collapse due to changes in geological conditions, fluctuations in groundwater levels, failure of the protective mud cake, or construction disturbance, causing sudden subsidence of the soil around the casing or the formation of hidden cavities. This poses a threat to the safety of workers near the borehole opening and may also cause small machinery to overturn. Therefore, it is necessary to monitor the condition of the pile borehole opening and trigger protective actions or issue warnings when danger occurs.

[0003] Currently, the safety protection measures adopted at the construction site mainly include setting up fixed fences and covers, and assigning dedicated personnel to stand guard. Fixed fences and covers are passive protections, unable to actively detect changes in the borehole wall condition, and in the event of a collapse, they cannot promptly alert nearby personnel to evacuate. On-site supervision relies on the continuous attention and experience of personnel, which has limitations such as fatigue, obstructed vision, and difficulty in identification during nighttime operations, and also requires additional manpower.

[0004] In recent years, some protective devices with electronic monitoring functions have been tested in some projects. These devices typically use sensors to detect the borehole area, and a controller determines the trigger to activate an alarm or actuator. However, feedback from actual use shows that a prominent problem with these devices at pile foundation construction sites is their incompatibility with harsh working conditions.

[0005] Piling foundation construction sites commonly experience issues such as mud splashing, cement slurry overflow, and groundwater seepage. These liquids and semi-fluid substances easily adhere to and penetrate the surfaces and interiors of equipment. On-site construction also involves continuous mechanical vibration and impact. Simultaneously, temporary construction power often experiences unstable voltage or intermittent power outages. In such an environment, electronic monitoring equipment is prone to problems such as sensor windows being blocked by mud, leading to detection failure; wiring terminals and circuit boards experiencing short circuits or corrosion due to moisture or mud intrusion; and the entire system ceasing operation due to power outages. On-site maintenance personnel typically lack the professional skills to repair electronic equipment, and equipment malfunctions are often left unused, failing to fulfill their intended function.

[0006] Furthermore, in some sites with poor soil conditions, the precursors to borehole instability sometimes manifest as minute creep deformation of the soil rather than a sudden, large-scale collapse. If the alarm threshold of the electronic monitoring device is set too sensitively, it is prone to false alarms due to occasional interference such as falling rocks or tool contact, affecting normal construction operations; if the threshold is set too sluggishly, it may not react promptly to gradual collapses, posing a risk of missed alarms. Finding a balance between sensitivity and interference resistance is a real problem encountered by such devices in engineering practice. Summary of the Invention

[0007] Based on the technical problems existing in the background art, the present invention proposes an intelligent protection and monitoring device for pile foundation construction.

[0008] The present invention proposes an intelligent protection and monitoring device for pile foundation construction, comprising a test column, wherein the test column is vertically placed in the pile foundation hole by means of a bracket, and at least one probe structure is rotatably installed at the bottom of the test column, one end of the probe structure being inserted into the wall of the pile foundation hole;

[0009] The test column is equipped with a vibrating bell and a striking mechanism. The striking mechanism can reciprocate to strike the vibrating bell and make it vibrate and produce sound. An amplification transmission mechanism is provided between the striking mechanism and the probe structure. The amplification transmission mechanism can convert the downward rotation of the probe structure into the striking action of the striking mechanism on the vibrating bell.

[0010] The test column is provided with a storage slot, and a fluorescent warning sign is slidably installed in the storage slot. The amplification transmission mechanism can convert the downward rotation of the probe structure into the action of the fluorescent warning sign sliding out of the storage slot.

[0011] The test column has a motion groove, in which a gradient-colored slider is slidably installed. The test column has an observation window. The amplification transmission mechanism can convert the downward rotation of the probe structure into the sliding motion of the gradient-colored slider in the motion groove, and the position of the gradient-colored slider in the motion groove can be observed through the observation window.

[0012] Preferably, the amplification transmission mechanism includes a drive gear, a ratchet structure, and an amplification component; the drive gear is rotatably mounted inside the test column, and the drive gear meshes with the gradient color slider;

[0013] The ratchet structure is mounted on one side of the drive gear, and the ratchet structure is used to prevent the drive gear from rotating.

[0014] The amplification component is used to convert and amplify the downward rotation of the probe structure into the rotational motion of the drive gear.

[0015] Preferably, the amplification transmission mechanism includes a slide, a traction cable, movable guide wheels, fixed guide wheels, an amplification cable, a take-up roller, a return spring, and a return element; an amplification chamber is provided inside the test column, the slide is slidably installed inside the amplification chamber, one end of the traction cable is connected to the probe structure, the other end of the traction cable is connected to the slide, there are multiple movable guide wheels, all of which are rotatably installed on the slide, there are multiple fixed guide wheels, all of which are rotatably installed inside the amplification chamber, one end of the amplification cable is connected to the inner wall of the amplification chamber, and the other end of the amplification cable passes sequentially around multiple movable guide wheels and multiple fixed guide wheels and is wound onto the take-up roller, which is installed on one side of the drive gear;

[0016] The reset spring is located inside the amplification chamber, and its two ends abut against the bottom inner wall of the amplification chamber and the bottom of the slide, respectively.

[0017] The reset component is used to drive the take-up roller to rotate and reset.

[0018] Preferably, the reset component includes a constant force spring; the inner end of the constant force spring is fixedly connected to the test column, and the outer end of the constant force spring is fixedly connected to the inner wall of the take-up roller.

[0019] Preferably, the striking mechanism includes a deflecting rod, a striking block, and a driving structure; the deflecting rod is rotatably mounted inside the test column, and the striking block is mounted on one end of the deflecting rod.

[0020] The drive structure can drive the deflection rod to reciprocate. When the deflection rod reciprocates, it can drive the striking block to strike the vibrating bell.

[0021] Preferably, the drive structure includes a deflection gear, a sliding shaft, a lifting column, a lifting spring, and a locking assembly; the deflection gear is rotatably installed inside the test column, the sliding shaft is fixedly connected to one side of the deflection gear, the axis of the sliding shaft is parallel to but not coincident with the axis of the deflection gear, the deflection rod has a linear sliding groove that slides with the sliding shaft, the test column has a drive lifting groove, the lifting column is slidably installed in the drive lifting groove, the lifting spring is located in the drive lifting groove, and the two ends of the lifting spring abut against the bottom inner wall of the drive lifting groove and the bottom end of the lifting column, respectively;

[0022] The locking component is used to fix the position of the lifting column within the drive lifting slot;

[0023] An unlocking component is provided between the lifting column and the magnifying steel cable. The unlocking component is used to release the locking component from locking the position of the lifting column.

[0024] Preferably, the locking assembly includes a positioning bevel ring, a locking pin, and a locking spring; an annular groove is formed on the outer periphery of the lifting column, the positioning bevel ring is fitted onto the lifting column and located in the annular groove, a locking hole is formed on the inner wall of the driving lifting groove, the locking pin is slidably installed in the locking hole, the end of the locking pin can abut against the top surface of the positioning bevel ring, the locking spring is located in the locking hole, and the two ends of the locking spring abut against the inner wall of the end of the locking hole and one end of the locking pin, respectively.

[0025] Preferably, the unlocking assembly includes a slide rod, an unlocking inclined ring, a descending ring, an unlocking rod, and a positioning spring; the inner wall of the annular groove is provided with an unlocking groove that slides with the slide rod; the unlocking inclined ring and the descending ring are respectively installed at both ends of the slide rod, and the unlocking inclined ring is located above the positioning inclined ring; the unlocking inclined ring can slide with the inclined surface of the locking pin and drive the locking pin to retract into the locking hole; the descending ring is located below the positioning inclined ring; the inner wall of the driving lifting groove is provided with a lifting groove that slides with the unlocking rod; one end of the unlocking rod abuts against the top surface of the descending ring; and the unlocking rod is connected to the enlarged steel cable.

[0026] The positioning spring is located inside the annular groove, and its two ends abut against the bottom inner wall of the annular groove and the bottom surface of the descending ring, respectively.

[0027] Preferably, an extension link is rotatably mounted on the lifting column, and the other end of the extension link is rotatably connected to the fluorescent warning sign;

[0028] The test column is equipped with a vibrating plate at the top. When the column rises, the top of the column can strike the vibrating plate and emit an alarm sound.

[0029] Preferably, the probe structure includes a deflection probe, a telescopic probe, a first positioning screw, an arc-shaped baffle, and a second positioning screw; the deflection probe is rotatably mounted on the test column, and the end of the deflection probe away from the test column has an adapter hole for sliding cooperation with the telescopic probe; one end of the telescopic probe is slidably mounted in the adapter hole; one end of the first positioning screw is threaded through the deflection probe and abuts against the telescopic probe; the arc-shaped baffle is slidably fitted on the telescopic probe; and one end of the second positioning screw is threaded to observe the arc-shaped baffle and abuts against the telescopic probe.

[0030] The intelligent protection and monitoring device for pile foundation construction proposed in this invention has the following beneficial effects: Through a purely mechanical transmission structure, it relies on a probe to sense the deformation of the pile hole wall, and the pulley block amplifies the minute movements, synchronously driving the gradient color slider, fluorescent warning sign, and vibrating bell to form multiple visual and audible warnings; with the ratchet mechanism locking the drive gear, it prevents the slider from rebounding, and the danger warning is continuously effective; the constant force spring and return spring realize the automatic reset of the mechanism and can be used repeatedly; the whole set of equipment has no electronic components, is not afraid of harsh working conditions such as mud, vibration, and power failure, saves the need for manual on-site supervision, can accurately capture the precursors of soil creep, and balances monitoring sensitivity and anti-interference ability, effectively preventing the risk of pile hole collapse. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of an intelligent protection and monitoring device for pile foundation construction proposed in this invention;

[0032] Figure 2 This is a cross-sectional view of an intelligent protection and monitoring device for pile foundation construction proposed in this invention;

[0033] Figure 3 This is a partial sectional view of the top of an intelligent protection and monitoring device for pile foundation construction proposed in this invention.

[0034] Figure 4 This is a partial cross-sectional view of the bottom of an intelligent protection and monitoring device for pile foundation construction proposed in this invention;

[0035] Figure 5 This invention proposes an intelligent protection and monitoring device for pile foundation construction. Figure 2 Enlarged view of point A in the middle;

[0036] Figure 6 This is a schematic diagram of the sliding rod, unlocking inclined ring, and descending ring in an intelligent protection and monitoring device for pile foundation construction proposed in this invention;

[0037] Figure 7 This invention proposes an intelligent protection and monitoring device for pile foundation construction. Figure 3 Enlarged view at point B in the middle;

[0038] Figure 8 This invention proposes an intelligent protection and monitoring device for pile foundation construction. Figure 4 Enlarged view of point C in the middle.

[0039] In the diagram: 1. Test column; 2. Vibration bell; 3. Fluorescent warning sign; 4. Gradient color slider; 5. Observation window; 6. Drive gear; 7. Slide carriage; 8. Traction cable; 9. Movable guide wheel; 10. Fixed guide wheel; 11. Magnifying cable; 12. Winding roller; 13. Constant force spring; 14. Deflection rod; 15. Striking block; 16. Deflection gear; 17. Sliding shaft; 18. Lifting column; 19. Lifting spring; 20. Positioning inclined ring; 21. Locking pin; 22. Locking spring; 23. Slide rod; 24. Unlocking inclined ring; 25. Lowering ring; 26. Unlocking rod; 27. Positioning spring; 28. Reset spring; 29. ​​Extending connecting rod; 30. Vibrating plate; 31. Deflection probe; 32. Telescopic probe; 33. Positioning screw No. 1; 34. Arc-shaped baffle; 35. Positioning screw No. 2. Detailed Implementation

[0040] Reference Figures 1-8This invention proposes an intelligent protection and monitoring device for pile foundation construction, including a test column 1. The test column 1 is vertically placed at the center of the pile foundation hole via a support, so that the top of the test column 1 is outside the top of the pile foundation hole. The test column 1 is made of high-strength, corrosion-resistant seamless steel pipe, which is suitable for the working environment of mud and groundwater erosion at the pile foundation construction site. The surface of the column is treated with anti-rust and anti-mud adhesion treatment. In addition, the length of the test column 1 can be matched with the conventional drilling depth of the pile foundation hole. Two probe structures are rotatably installed at the bottom of the test column 1. One end of the probe structure is inserted into the wall of the pile foundation hole. The number of probe structures can be selected according to the actual situation to ensure the monitoring of the creep, slippage, collapse and other deformation actions of the soil at various parts of the pile foundation hole wall. A vibrating bell 2 and a striking mechanism are installed on the test column 1. The striking mechanism can reciprocate to strike the vibrating bell 2 and make the vibrating bell 2 vibrate and produce sound. An amplification transmission mechanism is set between the striking mechanism and the probe structure. The amplification transmission mechanism can convert the downward rotation of the probe structure into the striking mechanism. In practice, when the soil around the pile hole wall undergoes deformation such as creep, slippage, or collapse, the vibration bell 2's striking action causes the probe structure to deflect downwards. The amplifying transmission mechanism converts this downward movement into a reciprocating striking motion of the vibrating bell 2, producing a continuous alarm sound. This alerts workers that the soil around the pile hole wall is deforming, allowing them to react promptly or evacuate safely. The test column 1 has a storage slot containing a fluorescent warning sign 3. The amplifying transmission mechanism converts the downward movement of the probe structure into the movement of the fluorescent warning sign 3 sliding out of the storage slot. When a large area of ​​the pile hole wall collapses, the amplifying transmission mechanism converts this downward movement into the fluorescent warning sign 3 sliding out of the storage slot, alerting workers that the pile hole wall has collapsed and prompting them to evacuate safely. The fluorescent warning sign 3 also provides long-distance visibility in low-light conditions and at night.The test column 1 has a moving groove, within which a gradient-colored slider 4 is slidably installed. The surface of the gradient-colored slider 4 features three gradient colors from top to bottom: light green, light yellow, and orange-red, corresponding to the normal state, warning state, and dangerous collapse state of the borehole wall, respectively. The test column 1 has an observation window 5, inlaid with a transparent, wear-resistant acrylic plate. The magnifying transmission mechanism converts the downward rotation of the probe structure into the sliding motion of the gradient-colored slider 4 within the moving groove. The position of the gradient-colored slider 4 within the moving groove can be observed through the observation window 5. When the borehole wall deforms, it causes the gradient-colored slider 4 to slide within the moving groove. Workers can visually judge the real-time position of the gradient-colored slider 4 through the observation window 5. To ensure the stability of the borehole wall, a vibrating disc 30 is installed at the top of test column 1. When the lifting column 18 rises, its top strikes the vibrating disc 30, emitting an alarm sound. The vibrating disc 30 is made of thin metal springs, which vibrate continuously upon impact and produce a sound, serving as an auxiliary alarm structure (similar to a gong). Test column 1 integrates a complete amplification transmission mechanism, striking mechanism, locking component, and unlocking component. All transmission components are made of wear-resistant alloy steel, improving service life under repeated transmission conditions. The entire device uses a purely mechanical transmission structure, requiring no external power supply, electronic sensors, or control modules, and can adapt to harsh conditions such as unstable voltage, power outages, strong vibrations, and mud contamination at pile foundation construction sites.

[0041] like Figure 1 and Figure 2As shown, the probe structure includes a deflection probe 31, a telescopic probe 32, a first positioning screw 33, an arc-shaped baffle 34, and a second positioning screw 35. The deflection probe 31 is rotatably mounted on the test column 1. The end of the deflection probe 31 furthest from the test column 1 has an adapter hole for sliding engagement with the telescopic probe 32. One end of the telescopic probe 32 is slidably mounted in the adapter hole. One end of the first positioning screw 33 is threaded through the deflection probe 31 and abuts against the telescopic probe 32. The arc-shaped baffle 34 is slidably fitted onto the telescopic probe 32. One end of the second positioning screw 35 is threaded through the arc-shaped baffle 34 and abuts against the telescopic probe 32. In actual operation, when the probe structure is not subjected to external forces (only its own gravity), the probe structure deflects downwards. When installing the probe structure, the telescopic probe 32 needs to be retracted into the fitting hole so that the probe structure and test column 1 can be inserted into the pile hole. After inserting the test column 1 into the pile hole to a suitable depth, the arc-shaped baffle 34 is fitted onto the telescopic probe 32. Then, the deflection probe 31 is rotated to a horizontal position, and the telescopic probe 32 is slid to insert into the soil of the pile hole wall. The arc-shaped baffle 34 is then slid to abut against the pile hole wall. Finally, the first positioning screw 33 and the second positioning screw 35 are tightened to fix the position between the telescopic probe 32 and the deflection probe 31. At the same time, the positions of the arc-shaped baffle 34 and the telescopic probe 32 are fixed, increasing the contact area with the soil and reducing the risk of the telescopic probe 32 embedding into the soil due to single-point force, which could lead to detection failure.

[0042] like Figure 2 and Figure 3As shown, the amplification transmission mechanism includes a drive gear 6, a ratchet structure, and an amplification component (the ratchet structure is not shown in the diagram; it is installed on one side of the drive gear 6, which is existing technology. The ratchet mechanism is an external meshing, tooth-meshing, one-way check ratchet mechanism. Its core function is to limit the reverse rotation of the drive gear 6, thereby locking the monitoring position in a dangerous state: when the pile hole wall deforms and the drive gear 6 rotates forward, causing the gradient-colored slider 4 to slide to the warning / danger zone, the ratchet mechanism locks the gear. Even if the soil in the hole wall slightly rebounds and the transmission components slightly reset, the gradient-colored slider 4 will not return to its original position, ensuring the warning state remains effective; the ratchet mechanism is only released when the entire mechanism is reset). The drive gear 6 is rotatably mounted on... Inside test column 1, drive gear 6 meshes with gradient color slider 4. A ratchet structure is installed on one side of drive gear 6 to prevent drive gear 6 from rotating back. The amplification component converts and amplifies the downward rotation of probe structure into the rotation of drive gear 6. In actual use, the amplification component converts the downward rotation of probe structure into the rotation of drive gear 6, which then drives gradient color slider 4 to slide in the motion groove. The ratchet structure ensures that drive gear 6 will not rotate back in the opposite direction, thus ensuring that the warning color of gradient color slider 4 remains continuously effective. This reduces warning errors caused by slight rebound of soil in the pile hole, reminds workers that the pile hole wall is in a dangerous state, and ensures safe construction.

[0043] like Figure 2 and Figure 4As shown, the amplification transmission mechanism includes a slide 7, a traction cable 8, movable guide wheels 9, fixed guide wheels 10, an amplification cable 11, a take-up roller 12, a return spring 28, and a return component. A guide wheel is installed inside the test column 1 to guide the traction cable 8, ensuring smooth movement of the traction cable 8. An amplification chamber is provided inside the test column 1, and the slide 7 is slidably installed inside the amplification chamber. One end of the traction cable 8 is connected to the probe structure, and the other end of the traction cable 8 is connected to the slide 7. Multiple movable guide wheels 9 are rotatably installed on the slide 7. Multiple fixed guide wheels 10 are also present. All fixed guide wheels 10 are rotatably installed inside the amplification chamber. One end of the amplification cable 11 is connected to the inner wall of the amplification chamber, and the other end of the amplification cable 11 passes sequentially around multiple movable guide wheels 9 and multiple fixed guide wheels 10 and is wound onto the take-up roller 12. The take-up roller 12 is installed on one side of the drive gear 6. The return spring 28 is located inside the amplification chamber, and its two ends abut against the bottom inner wall of the amplification chamber and the bottom of the slide 7, respectively. The return element is used to drive the take-up roller 12 to rotate and return to its original position. Four sets of movable guide wheels 9 are rotatably installed inside the slide 7, and the four sets of movable guide wheels 9 are arranged symmetrically in two rows. Five sets of fixed guide wheels 10 are fixedly and rotatably installed at corresponding positions on the wall. The fixed guide wheels 10 and movable guide wheels 9 are staggered. One end of the magnifying steel cable 11 is fixed to the inner wall of the top of the magnifying chamber, and the other end passes around all the movable guide wheels 9 and fixed guide wheels 10 in sequence, and finally is horizontally wound on the outer surface of the take-up roller 12. The combination of multiple sets of guide wheels constitutes a pulley block magnification structure, which can magnify the small downward linear displacement of the slide 7 several times, so that the take-up roller 12 can obtain sufficient rotation stroke, solving the problem that the small deformation of the hole wall cannot drive the subsequent mechanism to move. In actual use, when the soil of the pile foundation hole wall deforms, the arc The baffle 34 and telescopic probe 32 deflect with the movement of the soil. The deflecting probe 31 follows the deflection and pulls the traction cable 8. The traction cable 8 pulls the slide 7 to slide downward in the magnification chamber. The slide 7 drives multiple movable guide wheels 9 to descend synchronously, thereby pulling the magnification cable 11. The magnification cable 11 then pulls the winding roller 12 to rotate. The winding roller 12 drives the drive gear 6 to rotate synchronously, thereby driving the gradient color slider 4 to slide for warning. When the deflection force of the probe structure disappears, the slide 7 is driven to slide upward to reset under the rebound action of the reset spring 28, driving the traction cable 8 to reset.

[0044] like Figure 2 and Figure 3 As shown, the reset component includes a constant force spring 13; the inner end of the constant force spring 13 is fixedly connected to the test column 1, and the outer end of the constant force spring 13 is fixedly connected to the inner wall of the take-up roller 12. In actual use, after the deflection force of the probe structure disappears, the take-up roller 12 is driven to rotate and reset under the reaction force of the constant force spring 13, and the amplification cable 11 is pulled to reset.

[0045] like Figure 2 , Figure 3 and Figure 7 As shown, the striking mechanism includes a deflecting rod 14, a striking block 15, and a driving structure. The deflecting rod 14 is rotatably mounted inside the test column 1, and the striking block 15 is mounted on one end of the deflecting rod 14. The driving structure can drive the deflecting rod 14 to reciprocate. When the deflecting rod 14 reciprocates, it can drive the striking block 15 to strike the vibrating bell 2. The driving structure includes a deflecting gear 16, a sliding shaft 17, a lifting column 18, a lifting spring 19, and a locking assembly. The deflecting gear 16 is rotatably mounted inside the test column 1, and the sliding shaft 17 is fixedly connected to one side of the deflecting gear 16. The axis of the sliding shaft 17 is parallel to but does not coincide with the axis of the deflecting gear 16. A straight groove is provided on the deflecting rod 14 to slide with the sliding shaft 17. A driving lifting groove is provided inside the test column 1. The lifting column 18 is slidably mounted inside the driving lifting groove. The lifting spring 19 is located inside the driving lifting groove, and both ends of the lifting spring 19 are respectively connected to the bottom inner wall of the driving lifting groove and the lifting column 18. The bottom end of the lifting column 18 is abutted against the locking component, which is used to fix the position of the lifting column 18 in the drive lifting groove. An unlocking component is provided between the lifting column 18 and the amplifying steel cable 11. The unlocking component is used to release the locking component from locking the position of the lifting column 18. In actual use, when the wall of the pile foundation hole collapses, the soil causes the probe structure to deflect downward. Through the transmission of the amplifying structure, the amplifying steel cable 11 is pulled downward. The amplifying steel cable 11 drives the unlocking component to unlock the locking component. Under the rebound action of the lifting spring 19, the lifting column 18 is driven to rise quickly. When the lifting column 18 rises, the lifting column 18 drives the deflection gear 16 to rotate. The deflection gear 16 drives the sliding shaft 17 to rotate. The sliding shaft 17 slides in the linear sliding groove of the deflection rod 14, thereby driving the deflection rod 14 to perform reciprocating deflection motion. The deflection rod 14 drives the striking block 15 at its end to strike the vibrating bell 2 reciprocally. The vibrating bell 2 vibrates to emit a continuous warning bell sound to warn the staff.

[0046] like Figure 4 , Figure 5 , Figure 6 and Figure 8 As shown, the locking assembly includes a positioning inclined ring 20, a locking pin 21, and a locking spring 22; an annular groove is formed on the outer periphery of the lifting column 18, the positioning inclined ring 20 is fitted onto the lifting column 18 and located in the annular groove, a locking hole is formed on the inner wall of the driving lifting groove, the locking pin 21 is slidably installed in the locking hole, the end of the locking pin 21 can abut against the top surface of the positioning inclined ring 20, the locking spring 22 is located in the locking hole, the two ends of the locking spring 22 abut against the inner wall of the end of the locking hole and one end of the locking pin 21, respectively. The unlocking assembly includes a slide rod 23, an unlocking inclined ring 24, a descending ring 25, an unlocking rod 26, and a positioning spring 27; (the unlocking rod 26 slides in the lifting slide groove via a slide rail, the unlocking rod 26 in Figure 5The sliding trajectory in the middle slides downward and laterally to the left until the end of the unlocking rod 26 abuts against the top surface of the descending ring 25. The unlocking rod 26 then moves vertically downward and laterally to the right, causing the end of the unlocking rod 26 to disengage from the top surface of the descending ring 25. The inner wall of the annular groove is provided with an unlocking groove that slides with the slide rod 23. The unlocking inclined ring 24 and the descending ring 25 are respectively installed at both ends of the slide rod 23, and the unlocking inclined ring 24 is located above the positioning inclined ring 20 (the outer periphery of the bottom surface of the positioning inclined ring 20 is also a conical surface, which can slide with the end of the locking pin 21 and drive the locking pin 21 to retract into the locking hole, facilitating the descent of the lifting column 18). (Sliding reset), the unlocking inclined ring 24 can slide and engage with the inclined surface of the locking pin 21 and drive the locking pin 21 to retract into the locking hole. The descending ring 25 is located below the positioning inclined ring 20. The inner wall of the driving lifting groove is provided with a lifting groove that slides and engages with the unlocking rod 26. One end of the unlocking rod 26 abuts against the top surface of the descending ring 25. The unlocking rod 26 is connected to the amplifying steel cable 11. The positioning spring 27 is located in the annular groove. The two ends of the positioning spring 27 abut against the bottom inner wall of the annular groove and the bottom surface of the descending ring 25, respectively. In actual use, when the amplifying steel cable 11 descends and slides (the soil in the pile hole wall collapses), the amplifying steel cable 11 drives the unlocking rod 26 to descend and move horizontally. The probe moves against the top surface of the descending ring 25 until the probe structure rotates to the set collapse position. At this point, the end of the unlocking rod 26 abuts against the top surface of the descending ring 25, causing the sliding rod 23 and the unlocking inclined ring 24 to descend synchronously until the bottom surface of the unlocking inclined ring 24 abuts against the end inclined surface of the locking pin 21. As the unlocking inclined ring 24 descends, it drives the locking pin 21 to move laterally and retract into the locking hole. When the unlocking inclined ring 24 passes the end of the locking pin 21, the amplifying steel cable 11 continues to pull the unlocking rod 26 to descend. The unlocking rod 26 continues to descend and slide laterally within the lifting slide groove, causing the unlocking rod 26 to disengage from the top surface of the descending ring 25 without being subjected to unlocking. The locking rod 26 acts as a stop, and the lifting spring 19 acts as a rebound force, causing the lifting column 18 to rise rapidly. During the rising process, the end of the locking pin 21 abuts against the top slope of the unlocking inclined ring 24. The top slope of the unlocking inclined ring 24 and the end of the locking pin 21 slide together, causing the locking pin 21 to retract into the locking hole. At the same time, the locking pin 21 can pass over the positioning inclined ring 20, ensuring that the lifting column 18 can continue to rise. The top of the rising column 18 hits the vibrating plate 30 and vibrates more, emitting a louder warning sound to remind the staff that the wall of the pile foundation hole has collapsed, so that they can evacuate or take timely action.

[0047] like Figure 2 and Figure 3As shown, an extension rod 29 is rotatably mounted on the lifting column 18. The other end of the extension rod 29 is rotatably connected to the fluorescent warning sign 3. In actual use, when the lifting column 18 is raised, it will cause the extension rod 29 to deflect. The extension rod 29 will drive the fluorescent warning sign 3 to slide out laterally in the storage slot to visually warn the staff that the wall of the pile foundation hole has collapsed.

[0048] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An intelligent protection and monitoring device for pile foundation construction, characterized in that, Includes a test column (1), which is vertically placed in the pile hole by a bracket. At least one probe structure is rotatably installed at the bottom of the test column (1), and one end of the probe structure is inserted into the wall of the pile hole. The test column (1) is equipped with a vibrating bell (2) and a striking mechanism. The striking mechanism can reciprocate to strike the vibrating bell (2) and make the vibrating bell (2) vibrate and produce sound. An amplification transmission mechanism is provided between the striking mechanism and the probe structure. The amplification transmission mechanism can convert the downward rotation of the probe structure into the striking action of the striking mechanism on the vibrating bell (2). The test column (1) is provided with a storage slot, and a fluorescent warning sign (3) is slidably installed in the storage slot. The amplification transmission mechanism can convert the downward rotation of the probe structure into the action of the fluorescent warning sign (3) sliding out of the storage slot. The test column (1) is provided with a motion groove, and a gradient color slider (4) is slidably installed in the motion groove. The test column (1) is provided with an observation window (5). The amplification transmission mechanism can convert the downward rotation of the probe structure into the sliding motion of the gradient color slider (4) in the motion groove. The position of the gradient color slider (4) in the motion groove can be observed through the observation window (5).

2. The intelligent protection and monitoring device for pile foundation construction according to claim 1, characterized in that, The amplification transmission mechanism includes a drive gear (6), a ratchet structure, and an amplification component; the drive gear (6) is rotatably mounted inside the test column (1), and the drive gear (6) meshes with the gradient color slider (4); The ratchet structure is installed on one side of the drive gear (6) and is used to prevent the drive gear (6) from rotating. The amplification component is used to convert and amplify the downward rotation of the probe structure into the rotational motion of the drive gear (6).

3. The intelligent protection and monitoring device for pile foundation construction according to claim 2, characterized in that, The amplification transmission mechanism includes a slide (7), a traction cable (8), a movable guide wheel (9), a fixed guide wheel (10), an amplification cable (11), a take-up roller (12), a reset spring (28), and a reset component; an amplification chamber is provided inside the test column (1), the slide (7) is slidably installed in the amplification chamber, one end of the traction cable (8) is connected to the probe structure, and the other end of the traction cable (8) is connected to the slide (7), there are multiple movable guide wheels (9), and multiple movable guide wheels (9) are rotatably installed on the slide (7), there are multiple fixed guide wheels (10), and multiple fixed guide wheels (10) are rotatably installed in the amplification chamber, one end of the amplification cable (11) is connected to the inner wall of the amplification chamber, and the other end of the amplification cable (11) passes around multiple movable guide wheels (9) and multiple fixed guide wheels (10) in sequence and is wound on the take-up roller (12), and the take-up roller (12) is installed on one side of the drive gear (6); The reset spring (28) is located inside the amplification chamber, and the two ends of the reset spring (28) abut against the bottom inner wall of the amplification chamber and the bottom of the slide (7), respectively. The reset component is used to drive the take-up roller (12) to rotate and reset.

4. The intelligent protection and monitoring device for pile foundation construction according to claim 3, characterized in that, The reset component includes a constant force spring (13); the inner end of the constant force spring (13) is fixedly connected to the test column (1), and the outer end of the constant force spring (13) is fixedly connected to the inner wall of the take-up roller (12).

5. The intelligent protection and monitoring device for pile foundation construction according to claim 3, characterized in that, The striking mechanism includes a deflection rod (14), a striking block (15), and a driving structure; the deflection rod (14) is rotatably installed inside the test column (1), and the striking block (15) is installed at one end of the deflection rod (14); The drive structure can drive the deflection rod (14) to reciprocate. When the deflection rod (14) reciprocates, the deflection rod (14) can drive the striking block (15) to strike the vibrating bell (2).

6. The intelligent protection and monitoring device for pile foundation construction according to claim 5, characterized in that, The drive structure includes a deflection gear (16), a sliding shaft (17), a lifting column (18), a lifting spring (19), and a locking assembly; the deflection gear (16) is rotatably installed inside the test column (1), the sliding shaft (17) is fixedly connected to one side of the deflection gear (16), the axis of the sliding shaft (17) is parallel to but does not coincide with the axis of the deflection gear (16), the deflection rod (14) is provided with a straight sliding groove that slides with the sliding shaft (17), the test column (1) is provided with a drive lifting groove, the lifting column (18) is slidably installed in the drive lifting groove, the lifting spring (19) is located in the drive lifting groove, and the two ends of the lifting spring (19) abut against the bottom inner wall of the drive lifting groove and the bottom end of the lifting column (18), respectively; The locking component is used to fix the position of the lifting column (18) in the drive lifting slot; An unlocking component is provided between the lifting column (18) and the enlarged steel cable (11), and the unlocking component is used to release the locking component from locking the position of the lifting column (18).

7. The intelligent protection and monitoring device for pile foundation construction according to claim 6, characterized in that, The locking assembly includes a positioning inclined ring (20), a locking pin (21), and a locking spring (22). An annular groove is provided on the outer periphery of the lifting column (18). The positioning inclined ring (20) is fitted on the lifting column (18) and located in the annular groove. A locking hole is provided on the inner wall of the driving lifting groove. The locking pin (21) is slidably installed in the locking hole. The end of the locking pin (21) can abut against the top surface of the positioning inclined ring (20). The locking spring (22) is located in the locking hole. The two ends of the locking spring (22) abut against the inner wall of the end of the locking hole and one end of the locking pin (21), respectively.

8. The intelligent protection and monitoring device for pile foundation construction according to claim 7, characterized in that, The unlocking assembly includes a slide bar (23), an unlocking inclined ring (24), a descending ring (25), an unlocking rod (26), and a positioning spring (27); the inner wall of the annular groove is provided with an unlocking groove that slides with the slide bar (23); the unlocking inclined ring (24) and the descending ring (25) are respectively installed at both ends of the slide bar (23); the unlocking inclined ring (24) is located above the positioning inclined ring (20); the unlocking inclined ring (24) can slide with the inclined surface of the locking pin (21) and drive the locking pin (21) to retract into the locking hole; the descending ring (25) is located below the positioning inclined ring (20); the inner wall of the driving lifting groove is provided with a lifting groove that slides with the unlocking rod (26); one end of the unlocking rod (26) abuts against the top surface of the descending ring (25); the unlocking rod (26) is connected to the enlarged steel cable (11); The positioning spring (27) is located in the annular groove, and the two ends of the positioning spring (27) abut against the bottom inner wall of the annular groove and the bottom surface of the descending ring (25), respectively.

9. The intelligent protection and monitoring device for pile foundation construction according to claim 8, characterized in that, An extension rod (29) is rotatably mounted on the lifting column (18), and the other end of the extension rod (29) is rotatably connected to the fluorescent warning sign (3); The test column (1) is equipped with a vibrating plate (30) at the top. When the lifting column (18) moves upward, the top of the lifting column (18) can hit the vibrating plate (30) and make an alarm sound.

10. The intelligent protection and monitoring device for pile foundation construction according to claim 1, characterized in that, The probe structure includes a deflection probe (31), a telescopic probe (32), a first positioning screw (33), an arc-shaped baffle (34), and a second positioning screw (35). The deflection probe (31) is rotatably mounted on the test column (1). The end of the deflection probe (31) away from the test column (1) is provided with an adapter hole that slides with the telescopic probe (32). One end of the telescopic probe (32) is slidably mounted in the adapter hole. One end of the first positioning screw (33) is threaded through the deflection probe (31) and abuts against the telescopic probe (32). The arc-shaped baffle (34) is slidably fitted on the telescopic probe (32). One end of the second positioning screw (35) is threaded to observe the arc-shaped baffle (34) and abuts against the telescopic probe (32).

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