Ground subsidence monitoring device for subway construction

Abstract

The invention belongs to the technical field of land subsidence monitoring, and particularly discloses a land subsidence monitoring device for subway construction, which comprises a position lifting control mechanism, an induction type sliding marking mechanism, a paper roll winding mechanism and a self-release settlement pipe mechanism, the induction type sliding marking mechanism is arranged on the position lifting control mechanism, and the paper roll winding mechanism is arranged on the position lifting control mechanism. The position of the settlement magnetic ring can be sensed through stretching and retracting of the sensing magnetic column, contact between the marking pen and the tape type paper roll is achieved in the mode that the lifting support is driven to descend, and therefore marks are left on the tape type paper roll; and the position of the settlement magnetic ring can be intuitively reflected through the mark left on the tape type paper roll by the marking pen.

Description

Technical Field

[0001] The invention belongs to the technical field of ground subsidence monitoring, and specifically refers to a ground subsidence monitoring device for subway construction. Background Art

[0002] Ground subsidence monitoring is a commonly used detection method in the construction and survey of subway projects. The main principle is to drill a hole in the ground, then extend the settlement casing and the settlement magnetic ring into the hole together, and then slowly backfill the vertical hole while the fixed claws of the settlement magnetic ring are opened and inserted into the soil of the hole wall, so that the settlement magnetic ring and the surrounding soil layers are combined and fixed to each other.

[0003] In later measurements, it is only necessary to sense the location of the magnetic ring to learn about the changes and settlement of the soil layer.

[0004] At present, most of the instruments used to detect settlement are expensive. Due to cost pressure, the number of settlement detection equipment held by construction units is actually very limited. When constructing large projects such as subways, the insufficient number of detection equipment will become an important factor restricting the construction progress; but in fact, the detection and observation of settlement does not necessarily require very high precision. For most ordinary construction scenes with low technical requirements, measurement can also be achieved through low-cost equipment. In fact, expensive and high-precision equipment and relatively low-cost equipment with relatively general precision have their own applicable scenarios. Only by reasonably allocating the ratio of the two can the effect and efficiency be maximized at a limited cost. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention proposes a low-cost, simple-structured and reliable ground settlement monitoring device for subway construction; this solution still adopts the traditional pre-embedded method of matching the settlement casing and the settlement magnetic ring, which has a low actual cost and can maintain the versatility of the technical solution and the traditional technical solution, and can be selected according to the specific situation in actual use; in order to ensure low cost, this solution must realize the speed matching and linkage control between various motion mechanisms without setting up complex sensors, drive modules and control modules; Moreover, in order to detect the position of the magnetic ring in the sedimentation tube body, the preferred solution must be to extend another straight rod-shaped detection device which is slightly longer than the sedimentation tube body into the sedimentation tube body. At this time, no complicated motion mechanism is required to sense and mark the position of the sedimentation magnetic ring. However, since the sedimentation tube body generally has a certain depth, on the one hand, there may not be enough longitudinal operating space above the location of the self-release sedimentation tube mechanism. On the other hand, excessive length will inevitably make carrying and operation inconvenient.

[0006] In order to achieve the above objectives, the present invention creatively proposes an inductive sliding marking mechanism and a paper roll winding mechanism, which can sense the position of the sedimentation magnetic ring through the extension and retraction of the inductive magnetic column, and realize the contact between the marking pen and the magnetic tape paper roll by driving the lifting bracket to descend, thereby leaving a mark on the magnetic tape paper roll. Since the movement of the magnetic tape paper roll matches the descending movement of the detection frame, the mark left by the marking pen on the magnetic tape paper roll can intuitively reflect the position of the sedimentation magnetic ring.

[0007] The paper rolls can be rotated for permanent archiving or designed with erasable markings so they can be reused after the mark is read.

[0008] The technical solution adopted by the present invention is as follows: The present invention proposes a ground settlement monitoring device for subway construction, including a position lifting control mechanism, an inductive sliding marking mechanism, a paper roll winding mechanism and a self-releasing settlement pipe mechanism, wherein the position lifting control mechanism is arranged on the settlement pipe body, the inductive sliding marking mechanism is arranged on the position lifting control mechanism, and the paper roll winding mechanism is arranged on the position lifting control mechanism.

[0009] Furthermore, the position lifting control mechanism includes a flexible detection component and a descent release component, and the flexible detection component is arranged on the descent release component.

[0010] Preferably, the flexible detection assembly includes a detection frame, a detection guide wheel, a counterweight ring and a lifting ring, the detection guide wheel is rotatably arranged on the detection frame, a plurality of detection guide wheels are evenly distributed in a ring, the counterweight ring is arranged at the bottom of the detection frame, and the lifting ring is arranged at the top of the detection frame.

[0011] By guiding and limiting the detection guide wheel, the detection rack can be lowered more smoothly and stably, thereby achieving stable descent of the position lifting control mechanism without rigid support.

[0012] As a further preferred embodiment of the present invention, the descending release assembly includes a hollow detection platform, a release motor, a spindle bracket, a release spindle and a drum lifting rope, the hollow detection platform is arranged on the sedimentation tube body, the release motor is arranged on the hollow detection platform, the spindle bracket is arranged on the lifting guide assembly, the release spindle is rotatably arranged in the spindle bracket, the output shaft of the release motor is connected to the release spindle, the drum lifting rope is arranged on the release spindle, and the free end of the drum lifting rope is arranged on the lifting ring.

[0013] Through the continuous release of the drum lifting rope, the detection frame can slowly descend under the gravity of the counterweight ring. During the continuous descent of the detection frame, when passing through the sedimentation magnetic ring, the magnetic force can trigger the linkage of the inductive sliding marking mechanism and the paper roll winding mechanism, thereby achieving the technical effect of drawing marks on the magnetic tape paper roll.

[0014] Furthermore, the inductive sliding marking mechanism includes a lifting guide assembly, a multi-strand rope feeding assembly and a magnetic ring sensing assembly. The lifting guide assembly is arranged on the descending release assembly, the multi-strand rope feeding assembly is rotatably arranged in the lifting guide assembly, and the magnetic ring sensing assembly is arranged on the flexible detection assembly.

[0015] The inductive sliding marking mechanism can control the feeding of the multi-strand pull rope at a corresponding speed during the continuous release of the drum lifting rope, so that during the descent of the detection frame, the multi-strand pull rope can be kept in a tensioned state like the drum lifting rope, so that after sensing the position of the magnetic ring, the lifting guide assembly can respond stably.

[0016] Preferably, the lifting guide assembly comprises a guide base, a lifting bracket and a lifting reset spring, the guide base is arranged on the hollow detection platform, a guide rod is provided on the guide base, guide holes are symmetrically provided on the lifting bracket, the lifting bracket is slidably arranged on the guide rod through the guide holes, the lifting reset spring is arranged between the guide base and the lifting bracket, and a center groove is also provided in the middle position of the lifting bracket.

[0017] As a further preferred embodiment of the present invention, the multi-strand rope feeding assembly includes a feeding shaft, a feeding clamping wheel and a feeding gear. The feeding shaft is rotatably arranged in the lifting bracket, the feeding clamping wheel and the feeding gear are fixed on the feeding shaft, and the feeding shaft is symmetrically provided with two groups, and the two feeding gears are meshed for transmission.

[0018] As a further preferred embodiment of the present invention, the magnetic ring induction component includes a magnetic column sliding seat, an induction magnetic column and a multi-strand pull rope, the magnetic column sliding seat is fixedly connected to the detection frame, the induction magnetic column is snap-fitted and slidably arranged in the magnetic column sliding seat, one end of the multi-strand pull rope is arranged on the induction magnetic column, and the multi-strand pull rope is arranged between the feed clamping wheels.

[0019] Furthermore, the paper roll winding mechanism includes a secondary shaft rotating assembly, an elastic synchronization assembly and a line marking assembly, the secondary shaft rotating assembly is arranged on the descending release assembly, the elastic synchronization assembly is arranged between the secondary shaft rotating assembly and the multi-strand rope feeding assembly, and the line marking assembly is arranged on the secondary shaft rotating assembly.

[0020] The release speed of the multi-strand pull rope and the movement speed of the tape-type paper roll are both matched with the release speed of the drum lifting rope. On the one hand, it can simplify the structure, reduce costs and improve stability; on the other hand, it can also achieve mutual matching of movement actions between the position lifting control mechanism, the inductive sliding marking mechanism and the paper roll winding mechanism, and achieve speed matching between various actions without setting any sensor devices and control modules.

[0021] Preferably, the secondary shaft rotating assembly includes a secondary shaft bracket, a secondary shaft body, a driving bevel gear and a driven bevel gear, the secondary shaft bracket is arranged on a hollow detection platform, the secondary shaft body is rotatably arranged in the secondary shaft bracket, the driving bevel gear is fixedly connected to the release main shaft, the driven bevel gear is fixedly connected to the secondary shaft body, and the driving bevel gear and the driven bevel gear are meshed for transmission.

[0022] The paper roll winding mechanism serves as a power transmission mechanism between the position lifting control mechanism and the inductive sliding marking mechanism. On the one hand, it can rotate the secondary shaft body based on the rotation speed of the release main shaft, so that the movement speed of the tape-type paper roll and the descending speed of the detection frame match each other. On the other hand, it can also match the rotation speed of the feed clamping wheel and the descending speed of the detection frame.

[0023] As a further preferred embodiment of the present invention, the elastic synchronous component includes a driving pulley, a driven pulley and an elastic transmission belt, the driving pulley is fixed to the secondary shaft body, the driven pulley is fixed to one of the feed shafts, the elastic transmission belt is arranged between the driving pulley and the driven pulley, the elastic transmission belt is made of elastic material, and the elastic transmission belt is in rolling contact with the driving pulley and the driven pulley at the same time.

[0024] Preferably, the line marking assembly includes a fixed bracket, a magnetic tape paper roll, a line drawing bracket and a line drawing pad, the fixed bracket is arranged on the hollow detection platform, one end of the magnetic tape paper roll is fixed and wound on the secondary shaft body, the other end of the magnetic tape paper roll is wound on the fixed bracket, there is a rotational resistance between the inner drum of the magnetic tape paper roll and the fixed bracket, the line drawing pad is fixedly connected to the guide base, the line drawing pad is located below the magnetic tape paper roll, the line drawing bracket is fixedly connected to the lifting bracket, and the line drawing bracket is provided with a marking pen.

[0025] When the lifting bracket descends, it can bring the marking bracket down with it, so that the marking pen contacts the moving magnetic tape roll, and then leaves marks on the magnetic tape roll. According to the marks left on the magnetic tape roll, the position of the magnetic ring detected can be quantified and retained. By comparing the results of multiple measurements, the soil settlement situation at the current position can be known.

[0026] Furthermore, the self-releasing sedimentation tube mechanism includes a sedimentation tube body and a self-releasing magnetic ring assembly, the self-releasing magnetic ring assembly array is provided with a plurality of groups, the self-releasing magnetic ring assembly is slidably sleeved on the sedimentation tube body, the sedimentation tube body is provided with a blade, the self-releasing magnetic ring assembly includes a sedimentation magnetic ring, an elastic fixing claw and an elastic tightening band, the sedimentation magnetic ring is snap-fitted and slidably arranged on the sedimentation tube body, the elastic fixing claws are annularly evenly fixed to the sedimentation magnetic ring, the elastic fixing claws are provided with a bending portion, and the elastic tightening band tightens the elastic fixing claws through the bending portion.

[0027] As the material descends during landfilling, the elastic tightening band can be automatically separated from the elastic fixing claw, and the elastically contracted elastic tightening band can be directly cut off by the blade, thereby preventing the elastic tightening band on the sedimentation tube body from affecting the sliding of the sedimentation magnetic ring.

[0028] The beneficial effects achieved by the present invention using the above structure are as follows: (1) By continuously releasing the drum lifting rope, the detection frame can slowly descend under the gravity of the counterweight ring. When the detection frame continues to descend, it can trigger the linkage of the inductive sliding marking mechanism and the paper roll winding mechanism under the action of the magnetic force when passing through the sedimentation magnetic ring, thereby achieving the technical effect of drawing marks on the magnetic tape paper roll.

[0029] (2) The inductive sliding marking mechanism can control the feeding of the multi-strand pull rope at a corresponding speed during the continuous release of the drum lifting rope, so that during the descent of the detection frame, the multi-strand pull rope can remain in a tensioned state like the drum lifting rope, so that after sensing the position of the magnetic ring, the lifting guide assembly can respond stably.

[0030] (3) By guiding and limiting the detection guide wheel, the descent of the detection frame can be made smoother and more stable, thereby achieving stable descent of the position lifting control mechanism without rigid support.

[0031] (4) When the lifting bracket descends, it can bring the marking bracket down with it, so that the marking pen contacts the moving magnetic tape roll, and then leaves a mark on the magnetic tape roll. Based on the mark left on the magnetic tape roll, the position of the magnetic ring detected can be quantified and retained. By comparing the results of multiple measurements, the soil settlement at the current position can be known.

[0032] (5) The paper roll winding mechanism serves as a power transmission mechanism between the position lifting control mechanism and the inductive sliding marking mechanism. On the one hand, it can rotate the secondary shaft body based on the rotation speed of the release main shaft, so that the movement speed of the tape-type paper roll and the descending speed of the detection frame match each other. On the other hand, it can also match the rotation speed of the feed clamping wheel and the descending speed of the detection frame.

[0033] (6) The release speed of the multi-strand pull rope and the movement speed of the tape-type paper roll are matched with the release speed of the drum lifting rope. On the one hand, it can simplify the structure, reduce costs and improve stability; on the other hand, it can also achieve mutual matching of the movement actions between the position lifting control mechanism, the inductive sliding marking mechanism and the paper roll winding mechanism, and achieve speed matching between various actions without setting any sensor devices and control modules.

[0034] (7) As the material descends during landfilling, the elastic tightening band can be automatically separated from the elastic fixing claw, and the elastically contracted elastic tightening band can be directly cut off by the blade, thereby preventing the elastic tightening band on the sedimentation tube body from affecting the sliding of the sedimentation magnetic ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The present invention provides a three-dimensional ground settlement monitoring device for subway construction. Figure 1 ; Figure 2 The present invention provides a three-dimensional ground settlement monitoring device for subway construction. Figure 2 ; Figure 3 This is a front view of a ground subsidence monitoring device for subway construction proposed by the present invention; Figure 4 This is a left view of a ground subsidence monitoring device for subway construction proposed by the present invention; Figure 5 A top view of a ground subsidence monitoring device for subway construction proposed by the present invention; Figure 6 for Figure 3 A cross-sectional view along the cutting line AA; Figure 7 for Figure 4 A cross-sectional view along the cutting line BB; Figure 8 for Figure 4 A cross-sectional view along the cutting line CC; Fig. 9 for Figure 7 A partial enlarged view of point Ⅰ in the middle; Fig.10 for Figure 6 A partial enlarged view of the middle II; Fig.11 for Figure 1 A partial enlarged view of the middle part III; Fig.12 for Figure 8 A partial enlarged view of point IV in the middle.

[0036] Among them, 1. Position lifting control mechanism, 2. Inductive sliding marking mechanism, 3. Paper roll winding mechanism, 4. Self-release sedimentation tube mechanism, 5. Flexible detection component, 6. Drop release component, 7. Detection frame, 8. Detection guide wheel, 9. Counterweight ring, 10. Lifting ring, 11. Hollow detection platform, 12. Release motor, 13. Spindle bracket, 14. Release spindle, 15. Drum lifting rope, 16. Lifting guide component, 17. Multi-strand rope feeding component, 18. Magnetic ring induction component, 19. Guide base, 20. Lifting bracket, 21. Lifting reset spring, 22. Feed shaft, 23. Feed clamping wheel, 24. Feed gear, 25. Magnetic column sliding seat, 2 6. Induction magnetic column, 27. Multi-strand pull rope, 28. Guide rod, 29. Guide hole, 30. Center groove, 31. Secondary shaft rotation assembly, 32. Elastic synchronization assembly, 33. Line marking assembly, 34. Secondary shaft bracket, 35. Secondary shaft body, 36. Active bevel gear, 37. Driven bevel gear, 38. Active pulley, 39. Driven pulley, 40. Elastic transmission belt, 41. Fixed bracket, 42. Magnetic tape roll, 43. Line drawing bracket, 44. Marking pen, 45. Settlement tube body, 46. Self-releasing magnetic ring assembly, 47. Blade, 48. Settlement magnetic ring, 49. Elastic fixing claw, 50. Elastic tightening strap, 51. Bending part, 52. Line drawing pad.

[0037] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0040] like Figure 1 to Figure 12 As shown, the present invention proposes a ground settlement monitoring device for subway construction, including a position lifting control mechanism 1, an inductive sliding marking mechanism 2, a paper roll winding mechanism 3 and a self-releasing settlement pipe mechanism 4, the position lifting control mechanism 1 is arranged on the settlement pipe body 45, the inductive sliding marking mechanism 2 is arranged on the position lifting control mechanism 1, and the paper roll winding mechanism 3 is arranged on the position lifting control mechanism 1.

[0041] The self-releasing sedimentation tube mechanism 4 includes a sedimentation tube body 45 and a self-releasing magnetic ring assembly 46. The self-releasing magnetic ring assembly 46 array is provided with a plurality of groups. The self-releasing magnetic ring assembly 46 is slidably mounted on the sedimentation tube body 45. The sedimentation tube body 45 is provided with a blade 47. The self-releasing magnetic ring assembly 46 includes a sedimentation magnetic ring 48, an elastic fixing claw 49 and an elastic tightening band 50. The sedimentation magnetic ring 48 is slidably mounted on the sedimentation tube body 45. The elastic fixing claw 49 is annularly evenly fixed to the sedimentation magnetic ring 48. The elastic fixing claw 49 is provided with a bending portion 51. The elastic tightening band 50 tightens the elastic fixing claw 49 through the bending portion 51.

[0042] As the material descends during landfilling, the elastic tightening band 50 can be automatically separated from the elastic fixing claw 49, and the elastically contracted elastic tightening band 50 can be directly cut off by the blade 47, thereby preventing the elastic tightening band 50 on the sedimentation tube body 45 from affecting the sliding of the sedimentation magnetic ring 48.

[0043] The position lifting control mechanism 1 comprises a flexible detection component 5 and a descending release component 6 , wherein the flexible detection component 5 is arranged on the descending release component 6 .

[0044] The flexible detection assembly 5 includes a detection frame 7, a detection guide wheel 8, a counterweight ring 9 and a lifting ring 10. The detection guide wheel 8 is rotatably arranged on the detection frame 7. The detection guide wheel 8 is annularly evenly distributed with several groups. The counterweight ring 9 is arranged at the bottom of the detection frame 7, and the lifting ring 10 is arranged at the top of the detection frame 7.

[0045] By guiding and limiting the detection guide wheel 8, the detection frame 7 can be lowered more smoothly and stably, so that the position lifting control mechanism 1 can be stably lowered without rigid support.

[0046] The descending release assembly 6 includes a hollow detection platform 11, a release motor 12, a spindle bracket 13, a release spindle 14 and a drum lifting rope 15. The hollow detection platform 11 is arranged on the sedimentation tube body 45, the release motor 12 is arranged on the hollow detection platform 11, the spindle bracket 13 is arranged on the lifting guide assembly 16, the release spindle 14 is rotatably arranged in the spindle bracket 13, the output shaft of the release motor 12 is connected to the release spindle 14, the drum lifting rope 15 is arranged on the release spindle 14, and the free end of the drum lifting rope 15 is arranged on the lifting ring 10.

[0047] By continuously releasing the drum lifting rope 15, the detection frame 7 can slowly descend under the gravity of the counterweight ring 9. During the continuous descent, the detection frame 7 can trigger the linkage of the inductive sliding marking mechanism 2 and the paper roll winding mechanism 3 when passing through the sedimentation magnetic ring 48 under the action of the magnetic force, thereby achieving the technical effect of drawing marks on the magnetic tape paper roll 42.

[0048] The paper roll winding mechanism 3 includes a secondary shaft rotating assembly 31, an elastic synchronization assembly 32 and a line marking assembly 33. The secondary shaft rotating assembly 31 is arranged on the descending release assembly 6, the elastic synchronization assembly 32 is arranged between the secondary shaft rotating assembly 31 and the multi-strand rope feeding assembly 17, and the line marking assembly 33 is arranged on the secondary shaft rotating assembly 31.

[0049] The paper roll winding mechanism 3 serves as a power transmission mechanism between the position lifting control mechanism 1 and the inductive sliding marking mechanism 2. On the one hand, it can rotate the secondary shaft body 35 based on the rotation speed of the release main shaft 14, so that the movement speed of the tape-type paper roll 42 and the descending speed of the detection frame 7 match each other. On the other hand, it can also match the rotation speed of the feed clamping wheel 23 and the descending speed of the detection frame 7.

[0050] The release speed of the multi-strand pull rope 27 and the movement speed of the tape-type paper roll 42 are both matched with the release speed of the drum lifting rope 15. On the one hand, it can simplify the structure, reduce costs and improve stability; on the other hand, it can also achieve mutual matching of the movement actions between the position lifting control mechanism 1, the inductive sliding marking mechanism 2 and the paper roll winding mechanism 3, and achieve speed matching between various actions without setting any sensor devices and control modules.

[0051] The secondary shaft rotating assembly 31 includes a secondary shaft bracket 34, a secondary shaft body 35, a driving bevel gear 36 and a driven bevel gear 37. The secondary shaft bracket 34 is arranged on the hollow detection platform 11, and the secondary shaft body 35 is rotatably arranged in the secondary shaft bracket 34. The driving bevel gear 36 is fixedly connected to the release main shaft 14, and the driven bevel gear 37 is fixedly connected to the secondary shaft body 35. The driving bevel gear 36 and the driven bevel gear 37 are meshed and transmitted.

[0052] The elastic synchronous component 32 includes a driving pulley 38, a driven pulley 39 and an elastic transmission belt 40. The driving pulley 38 is fixed to the secondary shaft body 35, and the driven pulley 39 is fixed to one of the feed shafts 22. The elastic transmission belt 40 is arranged between the driving pulley 38 and the driven pulley 39. The elastic transmission belt 40 is made of elastic material and is in rolling contact with the driving pulley 38 and the driven pulley 39 at the same time.

[0053] The line marking assembly 33 includes a fixed bracket 41, a magnetic tape paper roll 42, a line drawing bracket 43 and a line drawing pad 52. The fixed bracket 41 is arranged on the hollow detection platform 11. One end of the magnetic tape paper roll 42 is fixed and wound on the secondary shaft body 35. The other end of the magnetic tape paper roll 42 is wound on the fixed bracket 41. There is a rotational resistance between the inner roller of the magnetic tape paper roll 42 and the fixed bracket 41. The line drawing pad 52 is fixedly connected to the guide base 19. The line drawing pad 52 is located below the magnetic tape paper roll 42. The line drawing bracket 43 is fixedly connected to the lifting bracket 20. A marking pen 44 is provided on the line drawing bracket 43.

[0054] The inductive sliding marking mechanism 2 includes a lifting guide assembly 16, a multi-strand rope feeding assembly 17 and a magnetic ring sensing assembly 18. The lifting guide assembly 16 is arranged on the descending release assembly 6, the multi-strand rope feeding assembly 17 is rotatably arranged in the lifting guide assembly 16, and the magnetic ring sensing assembly 18 is arranged on the flexible detection assembly 5.

[0055] The inductive sliding marking mechanism 2 can control the feeding of the multi-strand pull rope 27 at a corresponding speed during the continuous release of the drum lifting rope 15, so that during the descent of the detection frame 7, the multi-strand pull rope 27 can remain in a tensioned state like the drum lifting rope 15, so that after sensing the position of the magnetic ring, the lifting guide assembly 16 can respond stably.

[0056] The lifting guide assembly 16 includes a guide base 19, a lifting bracket 20 and a lifting reset spring 21. The guide base 19 is arranged on the hollow detection platform 11. A guide rod 28 is provided on the guide base 19. The lifting bracket 20 is symmetrically provided with guide holes 29. The lifting bracket 20 is slidably arranged on the guide rod 28 through the guide holes 29. The lifting reset spring 21 is arranged between the guide base 19 and the lifting bracket 20. A center groove 30 is also provided in the middle position of the lifting bracket 20.

[0057] When the lifting bracket 20 descends, it can bring the marking bracket 43 down together, so that the marking pen 44 contacts the moving magnetic tape paper roll 42, and then leaves a mark on the magnetic tape paper roll 42. According to the mark left on the magnetic tape paper roll 42, the position of the magnetic ring detected can be quantified and retained. By comparing the results of multiple measurements, the soil settlement situation at the current position can be known.

[0058] The multi-strand rope feeding assembly 17 includes a feeding shaft 22, a feeding clamping wheel 23 and a feeding gear 24. The feeding shaft 22 is rotatably arranged in the lifting bracket 20. The feeding clamping wheel 23 and the feeding gear 24 are fixed to the feeding shaft 22. The feeding shaft 22 is symmetrically provided with two groups, and the two feeding gears 24 are meshed and transmitted.

[0059] The magnetic ring sensing assembly 18 includes a magnetic column sliding seat 25, an induction magnetic column 26 and a multi-strand pull rope 27. The magnetic column sliding seat 25 is fixedly connected to the detection frame 7. The induction magnetic column 26 is slidably engaged in the magnetic column sliding seat 25. One end of the multi-strand pull rope 27 is arranged on the induction magnetic column 26. The multi-strand pull rope 27 is arranged between the feed clamping wheels 23.

[0060] During specific use, the user first needs to vertically extend the installed self-releasing sedimentation pipe mechanism 4 into the drilled vertical hole, fix the position and slowly backfill. During the falling process of the filler, the filler falling on the elastic tightening band 50 will peel the elastic tightening band 50 off the elastic fixing claw 49. The elastic tightening band 50 leaving the elastic fixing claw 49 will be fastened to the sedimentation pipe body 45 under the action of its own tightening force and cut off by the blade 47, so that it cannot hinder the subsequent sliding of the sedimentation magnetic ring 48. The elastic fixing claw 49 that has lost its restraint will open and insert into the soil layer under the action of its own elastic force to complete its own position pre-fixation. Only after the landfill is completed, the position fixation of the sedimentation magnetic ring 48 and the surrounding soil layer can be completed.

[0061] After the pre-embedding is completed, the position and settlement changes of the soil layer where the soil layer is located can be known by sensing the position changes of the settlement magnetic ring 48.

[0062] During the inspection, the hollow detection platform 11 is first installed on the top of the settling tube body 45, and then the flexible detection assembly 5 is extended into the settling tube body 45, and then the release motor 12 is started, and the drum lifting rope 15 is slowly released by the rotation of the release main shaft 14. When the drum lifting rope 15 is released, the detection frame 7 will slowly descend along the settling tube body 45 through the rolling of the detection guide wheel 8; Since the driving bevel gear 36 and the driven bevel gear 37 are meshed and driven, when the release main shaft 14 rotates, the secondary shaft body 35 will also rotate accordingly; since there is resistance when the magnetic tape-type paper roll 42 rotates on the fixed bracket 41, when the magnetic tape-type paper roll 42 rotates along with the secondary shaft body 35, the magnetic tape-type paper roll 42 can maintain a tensioned state; At the same time, the secondary shaft body 35 can also rotate one of the feed shafts 22 through the transmission belt of the elastic synchronization component 32, and since the two feed shafts 22 are connected by the mutually meshing feed gears 24, the two feed clamping wheels 23 will rotate together, thereby controlling the release speed of the multiple pull ropes 27 clamped in the feed clamping wheels 23.

[0063] The release speed of the multi-strand pull rope 27 is the same as the release speed of the drum lifting rope 15, thereby ensuring that the multi-strand pull rope 27 always remains in a tensioned state.

[0064] The settling tube body 45 is made of a material that does not exhibit obvious magnetism. When the induction magnetic column 26 descends to the position where the settling magnetic ring 48 is located, the induction magnetic column 26 will slide under the magnetic attraction of the settling magnetic ring 48. The induction magnetic columns 26 in multiple directions slide together and bring the multi-strand pull rope 27 down as a whole. However, since the multi-strand pull rope 27 is clamped by the feed clamping wheel 23, that is, the multi-strand pull rope 27 and the feed clamping wheel 23 are in rolling contact, the descent of the multi-strand pull rope 27 will bring the feed clamping wheel 23 together with the lifting bracket 20 to overcome the elastic force of the lifting reset spring 21 and descend; When the lifting bracket 20 descends along the guide rod 28, the marking bracket 43 is brought down together, so that the marking pen 44 contacts the moving tape-type paper roll 42 and leaves a mark on the tape-type paper roll 42. Finally, by observing the mark on the tape-type paper roll 42, the distribution of the sedimentation magnetic ring 48 can be known. By comparing the distribution changes of the sedimentation magnetic ring 48 of multiple measurement results, the settlement of the soil layer can be known. During the lifting and lowering process of the lifting bracket 20, the distance between the driving pulley 38 and the driven pulley 39 is actually changing. However, since the elastic transmission belt 40 is made of elastic material and the load driven by the elastic synchronization component 32 is extremely light, the elastic transmission belt 40 itself can elastically expand and contract, so that the transmission of the elastic synchronization component 32 will not be interrupted during the lifting and lowering process of the lifting bracket 20.

[0065] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0066] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A ground settlement monitoring device for subway construction, comprising a self-releasing settlement pipe mechanism (4), the self-releasing settlement pipe mechanism (4) comprising a settlement pipe body (45) and a self-releasing magnetic ring assembly (46), the self-releasing magnetic ring assembly (46) being arranged in an array in a plurality of groups, the self-releasing magnetic ring assembly (46) being slidably sleeved on the settlement pipe body (45), characterized in that: It also comprises a position lifting control mechanism (1), an inductive sliding marking mechanism (2) and a paper roll winding mechanism (3), wherein the position lifting control mechanism (1) is arranged on the sedimentation tube body (45), the inductive sliding marking mechanism (2) is arranged on the position lifting control mechanism (1), and the paper roll winding mechanism (3) is arranged on the position lifting control mechanism (1); The position lifting control mechanism (1) comprises a flexible detection component (5) and a descending release component (6), wherein the flexible detection component (5) is arranged on the descending release component (6); The inductive sliding marking mechanism (2) comprises a lifting guide component (16), a multi-strand rope feeding component (17) and a magnetic ring sensing component (18), wherein the lifting guide component (16) is arranged on the descending release component (6), the multi-strand rope feeding component (17) is rotatably arranged in the lifting guide component (16), and the magnetic ring sensing component (18) is arranged on the flexible detection component (5); The paper roll winding mechanism (3) comprises a secondary shaft rotating assembly (31), an elastic synchronization assembly (32) and a line marking assembly (33); the secondary shaft rotating assembly (31) is arranged on a descending release assembly (6); the elastic synchronization assembly (32) is arranged between the secondary shaft rotating assembly (31) and a multi-strand rope feeding assembly (17); and the line marking assembly (33) is arranged on the secondary shaft rotating assembly (31).

2. A ground subsidence monitoring device for subway construction according to claim 1, characterized in that: The flexible detection assembly (5) comprises a detection frame (7), a detection guide wheel (8), a counterweight ring (9) and a lifting ring (10); the detection guide wheel (8) is rotatably arranged on the detection frame (7); a plurality of groups of detection guide wheels (8) are evenly distributed in a ring; the counterweight ring (9) is arranged at the bottom of the detection frame (7); and the lifting ring (10) is arranged at the top of the detection frame (7).

3. A ground subsidence monitoring device for subway construction according to claim 2, characterized in that: The descending release assembly (6) comprises a hollow detection platform (11), a release motor (12), a spindle bracket (13), a release spindle (14) and a drum lifting rope (15); the hollow detection platform (11) is arranged on the settling tube body (45); the release motor (12) is arranged on the hollow detection platform (11); the spindle bracket (13) is arranged on the lifting guide assembly (16); the release spindle (14) is rotatably arranged in the spindle bracket (13); the output shaft of the release motor (12) is connected to the release spindle (14); the drum lifting rope (15) is arranged on the release spindle (14); and the free end of the drum lifting rope (15) is arranged on the lifting ring (10).

4. A ground subsidence monitoring device for subway construction according to claim 3, characterized in that: The lifting guide assembly (16) comprises a guide base (19), a lifting bracket (20) and a lifting return spring (21); the guide base (19) is arranged on the hollow detection platform (11); a guide rod (28) is arranged on the guide base (19); guide holes (29) are symmetrically arranged on the lifting bracket (20); the lifting bracket (20) is slidably arranged on the guide rod (28) through the guide holes (29); the lifting return spring (21) is arranged between the guide base (19) and the lifting bracket (20); and a center groove (30) is also arranged in the middle of the lifting bracket (20).

5. A ground subsidence monitoring device for subway construction according to claim 4, characterized in that: The multi-strand rope feeding assembly (17) comprises a feeding shaft (22), a feeding clamping wheel (23) and a feeding gear (24); the feeding shaft (22) is rotatably arranged in the lifting bracket (20); the feeding clamping wheel (23) and the feeding gear (24) are fixedly connected to the feeding shaft (22); the feeding shaft (22) is symmetrically provided with two groups, and the two feeding gears (24) are meshed and transmitted with each other.

6. A ground subsidence monitoring device for subway construction according to claim 5, characterized in that: The magnetic ring induction component (18) comprises a magnetic column sliding seat (25), an induction magnetic column (26) and a multi-strand pull rope (27), wherein the magnetic column sliding seat (25) is fixedly connected to the detection frame (7), the induction magnetic column (26) is slidably arranged in the magnetic column sliding seat (25), one end of the multi-strand pull rope (27) is arranged on the induction magnetic column (26), and the multi-strand pull rope (27) is arranged between the feed clamping wheels (23).

7. A ground subsidence monitoring device for subway construction according to claim 6, characterized in that: The secondary shaft rotating assembly (31) comprises a secondary shaft support (34), a secondary shaft body (35), a driving bevel gear (36) and a driven bevel gear (37); the secondary shaft support (34) is arranged on the hollow detection platform (11); the secondary shaft body (35) is rotatably arranged in the secondary shaft support (34); the driving bevel gear (36) is fixedly connected to the release main shaft (14); the driven bevel gear (37) is fixedly connected to the secondary shaft body (35); and the driving bevel gear (36) and the driven bevel gear (37) are meshed and transmitted with each other.

8. A ground subsidence monitoring device for subway construction according to claim 7, characterized in that: The elastic synchronous component (32) comprises a driving pulley (38), a driven pulley (39) and an elastic transmission belt (40), wherein the driving pulley (38) is fixedly connected to the secondary shaft body (35), the driven pulley (39) is fixedly connected to one of the feed shafts (22), and the elastic transmission belt (40) is arranged between the driving pulley (38) and the driven pulley (39), and the elastic transmission belt (40) is made of elastic material, and the elastic transmission belt (40) is in rolling contact with the driving pulley (38) and the driven pulley (39) at the same time.

9. A ground subsidence monitoring device for subway construction according to claim 8, characterized in that: The line marking assembly (33) comprises a fixed bracket (41), a magnetic tape paper roll (42), a line drawing bracket (43) and a line drawing pad (52), wherein the fixed bracket (41) is arranged on the hollow detection platform (11), one end of the magnetic tape paper roll (42) is fixed and wound on the secondary shaft body (35), and the other end of the magnetic tape paper roll (42) is wound on the fixed bracket (41), and there is a rotational resistance between the inner roller of the magnetic tape paper roll (42) and the fixed bracket (41), the line drawing pad (52) is fixedly connected to the guide base (19), and the line drawing pad (52) is located below the magnetic tape paper roll (42), the line drawing bracket (43) is fixedly connected to the lifting bracket (20), and a marking pen (44) is provided on the line drawing bracket (43).

10. A ground subsidence monitoring device for subway construction according to claim 9, characterized in that: The sedimentation tube body (45) is provided with a blade (47), and the self-releasing magnetic ring assembly (46) comprises a sedimentation magnetic ring (48), an elastic fixing claw (49) and an elastic tightening band (50). The sedimentation magnetic ring (48) is slidably arranged on the sedimentation tube body (45), and the elastic fixing claw (49) is evenly fixed to the sedimentation magnetic ring (48) in an annular shape. The elastic fixing claw (49) is provided with a bending portion (51), and the elastic tightening band (50) tightens the elastic fixing claw (49) via the bending portion (51).

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