Cantilever row pile anti-overturning monitoring device
By using detachable guide wheel assemblies and adjustment assemblies, the problem of inconsistent support force in cantilever pile monitoring devices after long-term use was solved, thus achieving accuracy of monitoring data and convenience of maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-12
- Publication Date
- 2026-04-03
AI Technical Summary
After prolonged use, existing cantilever pile monitoring devices may experience deviations in the support force between guide wheel groups, affecting the accuracy of inclination monitoring data and making subsequent use, replacement, and maintenance inconvenient.
It adopts a detachable guide wheel assembly and adjustment assembly, including a combination mounting plate, detection support shaft, knob adjustment block, pawl and ratchet teeth. Through elastic components such as torsion springs and U-shaped reference frames, it ensures the consistency of support force of the guide wheel assembly and facilitates disassembly, replacement and maintenance.
It improves the accuracy of monitoring data and ease of operation, ensures that the guide wheel assembly can maintain stable support after long-term use, and simplifies the maintenance process.
Smart Images
Figure CN121781636A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of foundation pit construction monitoring technology, specifically to a cantilever pile anti-overturning monitoring device. Background Technology
[0002] Cantilever piles refer to a retaining structure composed of a certain type of piles arranged in a row, mainly serving as retaining components, without any support or anchors on the upper part of the foundation pit. Its working principle is similar to that of a cantilever beam, with one end embedded in the foundation soil and the other end hanging freely. It resists the earth pressure outside the foundation pit and other loads through the bending resistance of the pile body and the embedment effect of the pile bottom. However, unlike a cantilever beam, it is difficult to determine the fixed end position of a cantilever pile because each section of the pile will undergo horizontal displacement and angular deformation under the action of earth pressure on both sides. In the current use of cantilever piles, regular or continuous anti-overturning monitoring is required to promptly detect the support stability of the cantilever piles. Existing monitoring methods mainly use total stations or inclinometers for regular or long-term monitoring. When using an inclinometer, the probe is lowered along the guide groove inside the inclinometer tube pre-embedded inside the pile (or in the soil beside the pile) to measure the change in inclination angle at different depths and calculate the horizontal displacement of the pile at each depth to obtain the overall tilt trend. Currently, the commonly used guide wheel type inclinometer requires guide wheels set at both ends to maintain the posture of the inclinometer probe inside the tube. The support effect of the guide wheels depends on the elastic support of the torsion spring. After long-term use, the support force provided by the two guide wheel sets may deviate, which will affect the inclinometer monitoring data significantly. At the same time, it is not convenient for later use, replacement and maintenance. Summary of the Invention
[0003] The purpose of this invention is to provide a monitoring device for preventing overturning of cantilever piles, so as to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a cantilever pile anti-overturning monitoring device, comprising: The inclinometer body has guide wheel assembly slots on both the upper and lower sides. A combined mounting plate is bolted to one side of each guide wheel assembly slot. A detection support shaft is provided at the center of the combined mounting plate through an adjustment component. The adjustment component includes a knob adjustment block, a pawl, and several ratchet teeth. The guide wheel assembly is placed in the guide wheel assembly groove and movably sleeved with the detection support shaft. The guide wheel assembly includes a flip arm and two sliding guide wheels. A spring component is provided on one side of the flip arm that sleeves the detection support shaft. The spring component includes a U-shaped reference frame and a torsion spring.
[0005] Preferably, the side of the combined mounting plate away from the guide wheel assembly groove has a rotating groove, one side of the detection support shaft passes through the combined mounting plate and is inserted into the rotating groove, the knob adjustment block is rotatably disposed in the rotating groove, and one end of the detection support shaft inserted into the rotating groove is connected to the center of the knob adjustment block.
[0006] Preferably, the inner sidewall of the rotating groove is provided with a plurality of ratchet teeth in an annular array, the outer periphery of the knob adjusting block is provided with a telescopic groove, a support shaft is provided horizontally on one side of the telescopic groove, the pawl is inclinedly placed in the telescopic groove, and one side of the pawl is movably sleeved with the support shaft.
[0007] Preferably, one end of the pawl extends out of the telescopic groove and abuts against one side of the ratchet tooth, and a return spring is provided on the side of the pawl that is placed in the telescopic groove.
[0008] Preferably, one side of the guide wheel assembly groove is provided with an overlap hole, one side of the detection support shaft is inserted into the overlap hole, the flip arm sleeve is connected to the side of the detection support shaft located in the guide wheel assembly groove, and a mating groove is provided through the middle of the flip arm sleeve connected to the detection support shaft.
[0009] Preferably, the detection support shaft has combination slots on both sides inside the flip arm, and the two sides of the U-shaped reference frame are respectively inserted into the two combination slots. The detection support shaft is inserted into the opposite side of the combination slots, and one end of the first screw is threaded into the side of the U-shaped reference frame placed in the combination slot.
[0010] Preferably, the torsion spring is sleeved on one side of the detection support shaft located inside the flip arm, the U-shaped reference frame surrounds the torsion spring, pressure rods are provided on both sides of the torsion spring, an inclined surface is provided on one side inside the flip arm, and the two pressure rods of the torsion spring abut against the middle section of the U-shaped reference frame and the inclined surface inside the flip arm, respectively.
[0011] Preferably, the combined mounting plate is provided with a constraint baffle on one side of the guide wheel assembly groove. When the flip arm is in a horizontal position, the lower end of the constraint baffle contacts the upper end face of the flip arm, and the U-shaped reference frame is set close to the constraint baffle.
[0012] Preferably, both ends of the flip arm extend out of the guide wheel assembly slot and are horizontally provided with guide wheel assembly slots. Guide wheel mounting blocks are horizontally inserted into both guide wheel assembly slots. A second screw is vertically inserted through one side of the flip arm located in the guide wheel assembly slot, and the second screw passes through the guide wheel mounting block.
[0013] Preferably, one end of the guide wheel mounting block extends out of the guide wheel assembly groove and has a wheel groove. A guide wheel mounting shaft is horizontally inserted into the wheel groove, and two sliding guide wheels are respectively placed in the two wheel grooves and are rotated and sleeved with the guide wheel mounting shaft through bearings.
[0014] Compared with the prior art, the beneficial effects of the present invention are: The two guide wheel assemblies mounted on the inclinometer body are detachably connected to the inclinometer body via guide wheel assembly slots. When not in use for monitoring, they can be disassembled and stored, making storage simple and convenient. When the elastic components become worn due to prolonged use, they can be easily replaced and maintained, improving the convenience of pre-monitoring operations. In addition, the adjustment component can adjust the reference rebound force of the elastic components on the guide wheel assemblies, ensuring that the support position error of the two guide wheel assemblies on the inclinometer body within the inclinometer tube is reasonable, improving the applicability of the device and making operation worry-free and convenient. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 For the present invention Figure 1 Schematic diagram of part A; Figure 3 This is a schematic diagram of the disassembled structure of the combined mounting plate and the inclinometer body of the present invention; Figure 4 For the present invention Figure 2 Schematic diagram of part B; Figure 5 This is a schematic diagram of the connection structure between the combined mounting plate and the flip-up support arm of the present invention; Figure 6 For the present invention Figure 5 Schematic diagram of part C; Figure 7 This is a schematic diagram of the U-shaped reference frame installation structure of the present invention; Figure 8 This is a side sectional view of the connection between the pawl and the ratchet tooth of the present invention; Figure 9 For the present invention Figure 8 Schematic diagram of part D; Figure 10 This is a schematic diagram of the disassembled structure of the detection support shaft and the combined mounting plate of the present invention.
[0016] In the diagram: 1. Inclinometer body; 2. Guide wheel assembly groove; 3. Combined mounting plate; 4. Detection support shaft; 5. Knob adjustment block; 6. Rotation groove; 7. Racket tooth; 8. Pawl; 9. Return spring; 11. Flip arm; 12. Mating groove; 13. U-shaped reference frame; 14. Torsion spring; 15. Constraint baffle; 16. Guide wheel assembly groove; 17. First screw; 18. Guide wheel mounting block; 19. Sliding guide wheel; 20. Second screw; 21. Telescopic groove; 22. Support shaft; 23. Overlap hole; 24. Guide wheel mounting shaft. Detailed Implementation
[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.
[0018] Please see the appendix Figure 1-10 This application provides the following technical solutions.
[0019] Example 1: A cantilever pile anti-overturning monitoring device includes an inclinometer body 1. The inclinometer body 1 has guide wheel assembly slots 2 on both the upper and lower sides. A combination mounting plate 3 is bolted to one side of each guide wheel assembly slot 2. One end of the inclinometer body 1 is provided with a power-connected pull rope section. The guide wheel assembly slots 2 and the inclinometer body 1 can be quickly installed and disassembled. The two-bolt installation method can improve the structural strength of the inclinometer body 1 after installation. When not in use, it can be disassembled and stored independently, which is also more convenient for later replacement and maintenance.
[0020] The center of the combined mounting plate 3 is provided with a detection support shaft 4 via an adjustment assembly. The adjustment assembly includes a knob adjustment block 5, a pawl 8, and several ratchet teeth 7. A rotating groove 6 is provided on the side of the combined mounting plate 3 away from the guide wheel assembly groove 2. One side of the detection support shaft 4 passes through the combined mounting plate 3 and is inserted into the rotating groove 6. The knob adjustment block 5 is rotatably disposed in the rotating groove 6, and one end of the detection support shaft 4 inserted into the rotating groove 6 is connected to the center of the knob adjustment block 5. Several ratchet teeth 7 are arranged in a ring array on the inner side wall of the rotating groove 6. A telescopic groove 21 is provided on the outer periphery of the knob adjustment block 5, and a support shaft is horizontally provided on one side of the telescopic groove 21. 22. The pawl 8 is inclinedly placed in the telescopic groove 21. One side of the pawl 8 is movably sleeved with the support shaft 22. One end of the pawl 8 extends out of the telescopic groove 21 and abuts against one side of the ratchet tooth 7. A return spring 9 is provided on the side of the pawl 8 placed in the telescopic groove 21. When the knob adjustment block 5 is rotated, the detection support shaft 4 can be controlled to rotate. During the rotation, since the pawl 8 is elastically supported by the return spring 9, the pawl 8 will be inserted between the two ratchet teeth 7 one by one. When the detection support shaft 4 is subjected to the thrust of reverse rotation, the abutment between the pawl 8 and the ratchet tooth 7 can limit the rotational movement of the knob adjustment block 5 and the detection support shaft 4.
[0021] The guide wheel assembly is set to maintain the posture of the inclinometer body 1 inside the inclinometer tube. The guide wheel assembly is placed in the guide wheel assembly groove 2 and is movably sleeved with the detection support shaft 4. The guide wheel assembly includes a flip arm 11 and two sliding guide wheels 19. The side of the flip arm 11 that sleeves the detection support shaft 4 is provided with an elastic component, which includes a U-shaped reference frame 13 and a torsion spring 14. One side of the guide wheel assembly groove 2 is provided with an overlap hole 23. One side of the detection support shaft 4 is inserted into the overlap hole 23. The flip arm 11 sleeves the detection support shaft 4 on one side of the guide wheel assembly groove 2, and a mating groove 12 is opened through the middle of the flip arm 11 sleeved with the detection support shaft 4. The flip arm 11 can rotate along the detection support shaft 4. The two ends of the flip arm 11 extending out of the guide wheel assembly groove 2 are of the same length.
[0022] The detection support shaft 4 has combination slots on both sides inside the tilting arm 11. Two combination slots are inserted into each side of the U-shaped reference frame 13. First screws 17 are inserted into opposite sides of the combination slots on the detection support shaft 4, with one end of each screw 17 threaded into one side of the U-shaped reference frame 13 within the combination slot. A torsion spring 14 is sleeved on the side of the detection support shaft 4 inside the tilting arm 11. The U-shaped reference frame 13 surrounds the torsion spring 14, and two combination slots are provided on both sides of the torsion spring 14. There is a pressure bar, and an inclined surface is provided on one side of the flip arm 11. The two pressure bars of the torsion spring 14 abut against the middle section of the U-shaped reference frame 13 and the inclined surface inside the flip arm 11, respectively. When installing the torsion spring 14 and the U-shaped reference frame 13 with the detection support shaft 4, first, the torsion spring 14 is sleeved on the detection support shaft 4, and then the combination groove of the U-shaped reference frame 13 and the detection support shaft 4 is inserted. Finally, the two ends of the U-shaped reference frame 13 are screwed and fixed by the first screw 17. The combined mounting plate 3 is horizontally equipped with a constraint baffle 15 on one side of the guide wheel assembly groove 2. When the tilting arm 11 is in a horizontal position, the lower end of the constraint baffle 15 contacts the upper end face of the tilting arm 11, and the U-shaped reference frame 13 is set close to the constraint baffle 15. Since the U-shaped reference frame 13 is fixedly connected to the detection support shaft 4, the detection support shaft 4 will not rotate in one direction of rotation due to the cooperation of the ratchet tooth 7 and the pawl 8. The torsion spring 14 provides elastic thrust to the U-shaped reference frame 13 and the detection support shaft 4, which prevents the detection support shaft 4 from rotating. However, the pressure rod on the other side of the torsion spring 14 will push the tilting arm 11 to rotate along the detection support shaft 4. The upper end of the tilting arm 11 contacts the lower end of the constraint baffle 15. The constraint baffle 15 prevents the tilting arm 11 from rotating further and limits its rotation. At this time, since the U-shaped reference frame 13 is close to the constraint baffle 15, when the detection support shaft 4 controls the U-shaped reference frame 13 to continue rotating closer to the constraint baffle 15, the position of the tilting arm 11 remains unchanged. The pressure of the U-shaped reference frame 13 on the torsion spring 14 will continue to increase, realizing the adjustment of the elasticity of the torsion spring 14 after long-term use and elasticity reduction. When the elasticity of the two torsion springs 14 differs greatly due to elastic fatigue, adaptive adjustment is made to improve the accuracy and reliability of the anti-tipping monitoring value of the inclinometer body 1.
[0023] Example 2: Based on Example 1, the two ends of the tilting arm 11 extend out of the guide wheel assembly slots 2 and are horizontally provided with guide wheel assembly slots 16. Guide wheel mounting blocks 18 are horizontally inserted into both guide wheel assembly slots 16. A second screw 20 is vertically inserted through one side of the tilting arm 11 located in the guide wheel assembly slot 16, and the second screw 20 is set through the guide wheel mounting block 18. One end of the guide wheel mounting block 18 extends out of the guide wheel assembly slot 16 and is provided with a wheel groove. A guide wheel mounting shaft 24 is horizontally inserted into the wheel groove, and two sliding guide wheels 19 are respectively placed in the two wheel grooves and are rotated and sleeved with the guide wheel mounting shaft 24 through bearings. The sliding guide wheels 19 are connected to the guide wheel mounting shaft 24 through bearings. When replacing and maintaining the use, the guide wheel mounting block 18 and the tilting arm 11 can be quickly disassembled and installed, improving the convenience of replacement and maintenance for monitoring. In this way, the sliding guide wheels 19, bearings and torsion springs 14 are consumable parts, which are easy to replace and maintain.
[0024] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A monitoring device for preventing overturning of cantilever piles, characterized in that, include: The inclinometer body (1) has guide wheel assembly slots (2) on both the upper and lower sides. A combined mounting plate (3) is installed on one side of the guide wheel assembly slot (2) by bolts. The center of the combined mounting plate (3) is provided with a detection support shaft (4) through an adjustment component. The adjustment component includes a knob adjustment block (5), a pawl (8), and several ratchet teeth (7). The guide wheel assembly is placed in the guide wheel assembly groove (2) and is movably sleeved with the detection support shaft (4). The guide wheel assembly includes a flip arm (11) and two sliding guide wheels (19). The flip arm (11) is sleeved with the detection support shaft (4) on one side and is provided with an elastic component. The elastic component includes a U-shaped reference frame (13) and a torsion spring (14).
2. The cantilever pile anti-overturning monitoring device according to claim 1, characterized in that: The combined mounting plate (3) has a rotating groove (6) on the side away from the guide wheel assembly groove (2). One side of the detection support shaft (4) passes through the combined mounting plate (3) and is inserted into the rotating groove (6). The knob adjustment block (5) is rotatably located in the rotating groove (6), and one end of the detection support shaft (4) inserted into the rotating groove (6) is connected to the center of the knob adjustment block (5).
3. The cantilever pile anti-overturning monitoring device according to claim 2, characterized in that: The inner wall of the rotating groove (6) is provided with a number of ratchet teeth (7) in an annular array. The outer periphery of the knob adjustment block (5) is provided with a telescopic groove (21). A support shaft (22) is horizontally provided on one side of the telescopic groove (21). The pawl (8) is placed obliquely in the telescopic groove (21). One side of the pawl (8) is movably sleeved with the support shaft (22).
4. The cantilever pile anti-overturning monitoring device according to claim 3, characterized in that: One end of the pawl (8) extends out of the telescopic groove (21) and abuts against one side of the ratchet tooth (7), and a return spring (9) is provided on the side of the pawl (8) placed in the telescopic groove (21).
5. The cantilever pile anti-overturning monitoring device according to claim 4, characterized in that: The guide wheel assembly groove (2) has an overlap hole (23) on one side. The detection support shaft (4) is inserted into the overlap hole (23) on one side. The flip arm (11) is sleeved on one side of the detection support shaft (4) located in the guide wheel assembly groove (2), and a mating groove (12) is opened through the middle of the flip arm (11) sleeved on the detection support shaft (4).
6. The cantilever pile anti-overturning monitoring device according to claim 5, characterized in that: The detection support shaft (4) is provided with combination slots on both sides inside the flip arm (11). The two sides of the U-shaped reference frame (13) are respectively inserted into the two combination slots. The detection support shaft (4) is provided with first screws (17) on the opposite side of the combination slots. One end of the first screw (17) is threaded into the U-shaped reference frame (13) and placed on one side of the combination slot.
7. The cantilever pile anti-overturning monitoring device according to claim 6, characterized in that: The torsion spring (14) is sleeved on one side of the detection support shaft (4) located inside the flip arm (11). The U-shaped reference frame (13) surrounds the torsion spring (14). Pressure rods are provided on both sides of the torsion spring (14). An inclined surface is provided on one side inside the flip arm (11). The two pressure rods of the torsion spring (14) abut against the middle section of the U-shaped reference frame (13) and the inclined surface inside the flip arm (11), respectively.
8. The cantilever pile anti-overturning monitoring device according to claim 7, characterized in that: The combined mounting plate (3) is horizontally provided with a constraint baffle (15) on one side of the guide wheel assembly groove (2). When the flip arm (11) is in a horizontal position, the lower end of the constraint baffle (15) contacts the upper end face of the flip arm (11), and the U-shaped reference frame (13) is set close to the constraint baffle (15).
9. The cantilever pile anti-overturning monitoring device according to claim 8, characterized in that: The two ends of the flip arm (11) extend out of the guide wheel assembly slot (2) and are horizontally provided with guide wheel assembly slot (16). Guide wheel mounting blocks (18) are horizontally inserted in both guide wheel assembly slots (16). The flip arm (11) is vertically inserted with a second screw (20) on one side of the guide wheel assembly slot (16), and the second screw (20) passes through the guide wheel mounting block (18).
10. The cantilever pile anti-overturning monitoring device according to claim 9, characterized in that: One end of the guide wheel mounting block (18) extends out of the guide wheel assembly groove (16) and has a wheel groove. The guide wheel mounting shaft (24) is horizontally inserted in the wheel groove, and the two sliding guide wheels (19) are respectively placed in the two wheel grooves and rotated through the bearing to connect with the guide wheel mounting shaft (24).