A pile foundation settlement monitoring device

Abstract

The present application provides a pile foundation settlement monitoring device, comprising a positioning tube fixedly installed on the pile foundation; a horizontal adjustment mechanism installed between the positioning tube and the pile foundation to adjust the horizontality of the positioning tube; a first angle monitoring switch installed on the peripheral wall of the positioning tube and rotating around the axial direction of the positioning tube; a second angle monitoring switch installed at the bottom of the first angle monitoring switch and rotating around a second direction, the projection of the second direction on the horizontal plane where the positioning tube is located is perpendicular to the axis of the positioning tube; the first angle monitoring switch and the second angle monitoring switch are arranged in parallel; and also includes a power supply and a buzzer, the first angle monitoring switch and the second angle monitoring switch are both connected in series with the power supply and the buzzer, the above two angles can synthesize the inclination direction of the pile foundation, and the above two angles can be used to measure the angle at which the pile foundation is tilted relative to the horizontal plane, thereby realizing pile foundation offset measurement.

Description

Technical Field

[0001] The present application relates to the field of settlement monitoring, and in particular to a pile foundation settlement monitoring device. Background Art

[0002] Pile foundation is the basis of building and bridge construction, and the main body of the building or bridge needs to be built on the pile foundation later.

[0003] Due to the influence of soil quality and other environmental factors, pile foundations may deviate and settle within a certain period of time.

[0004] Usually, a permanent reference point is found at a location far away from the pile foundation, and then a total station is set up on the reference point. The displacement and settlement of the pile foundation are monitored by the total station, but this monitoring method is difficult to achieve real-time monitoring.

[0005] For this purpose, a settlement or inclination monitoring device will be built on the outside of the pile foundation. This device is built on the ground around the pile foundation. When the pile foundation shifts or settles, it will cause the surrounding soil to collapse, which will affect the measurement of the pile foundation. This measurement includes the settlement depth and inclination angle of the pile foundation, but cannot measure the inclination direction of the pile foundation.

[0006] Therefore, how to design a settlement monitoring device capable of measuring the inclination direction and inclination angle of a pile foundation becomes a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0007] The present application provides a pile foundation settlement monitoring device to solve the technical problem that the accuracy of pile foundation settlement measurement results is affected by soil collapse around the pile foundation.

[0008] A pile foundation settlement monitoring device is provided, comprising a positioning tube fixedly mounted on the pile foundation;

[0009] A horizontal adjustment mechanism is installed between the positioning tube and the pile foundation to adjust the horizontality of the positioning tube;

[0010] A first angle monitoring switch, which is mounted on the peripheral wall of the positioning tube and rotates around the axis of the positioning tube to monitor the deflection angle of the pile foundation around the axis of the positioning tube;

[0011] A second angle monitoring switch, which is mounted at the bottom of the first angle monitoring switch and rotates around a second direction to monitor the angle of deflection of the pile foundation around the second direction, wherein the projection of the second direction on the horizontal plane where the positioning tube is located is perpendicular to the axis of the positioning tube;

[0012] The first angle monitoring switch and the second angle monitoring switch are arranged in parallel;

[0013] It also includes a power supply and a buzzer, and the first angle monitoring switch and the second angle monitoring switch are connected in series with the power supply and the buzzer.

[0014] In one possible implementation, the first angle monitoring switch comprises a first monitoring ring, and the first monitoring ring is rotatably mounted on the peripheral wall of the positioning tube;

[0015] First angle scale lines, which are arranged on the first monitoring ring and distributed around the circumference of the first monitoring ring;

[0016] A first pointer, the first pointer is fixedly mounted on the positioning tube, and the first pointer extends along the radial direction of the positioning tube;

[0017] The second angle monitoring switch is installed as a counterweight component at the bottom of the first monitoring ring to achieve relative rotation between the positioning tube and the first monitoring ring;

[0018] The first angle monitoring switch includes a first conductive part, which is connected in series with a power source and a buzzer to realize power-on or power-off control of the buzzer.

[0019] In one possible implementation, the second angle monitoring switch includes a rotating shaft, a rotating rod, a counterweight, and an angle scale plate;

[0020] The rotating shaft is mounted on the first monitoring ring, and the axis of the rotating shaft is consistent with the second direction;

[0021] The counterweight is fixedly mounted on the rotating rod, and the rotating rod is connected to the rotating shaft for rotation around the second direction;

[0022] The angle scale plate is fixedly mounted on the first monitoring ring, and a second angle scale line is arranged on the angle scale plate, and the center of the second angle scale line coincides with the axis of the rotating shaft;

[0023] A second pointer pointing to a second angle scale line is fixedly provided on the rotating rod;

[0024] The second angle monitoring switch also includes a second conductive part, which is connected in series with the power supply and the buzzer to realize power on or power off control of the buzzer;

[0025] The first conductive part and the second conductive part are arranged in parallel.

[0026] In one possible implementation manner, the first conductive part includes a conductive screw, a conductive slip ring, a first conductive slider and a positioning nut;

[0027] The conductive screw is fixedly mounted on the positioning tube and is electrically connected to one of the electrodes of the power supply;

[0028] A conductive slip ring is installed on the first monitoring ring. The conductive slip ring is electrically connected to one of the electrodes of the buzzer through a conductive mechanism. The other electrode of the buzzer is electrically connected to the other electrode of the power supply. The first conductive slider is fixedly installed on the first pointer. The first pointer is sleeved on the outside of the conductive screw and fixed by a positioning nut. A first notch is provided on the conductive slip ring. The first notch and the second angle monitoring switch are symmetrically arranged about the axis of the first monitoring ring. When the first conductive slider is located in the first notch, the first conductive part is de-energized. When the first conductive slider abuts against the conductive slip ring, the first conductive part is energized.

[0029] In one possible implementation manner, the second conductive part includes a conductive sheet, a conductive sliding column, a second conductive slider and a conductive strip, the conductive sheet is electrically connected to the conductive screw, the conductive sliding column is slidably mounted on the rotating rod and abuts against the conductive sheet, the second conductive slider is fixedly mounted on the second pointer and is slidingly connected to the conductive sliding column through a wire, the conductive strip is fixedly mounted on the angle scale plate, the conductive strip is electrically connected to the conductive mechanism, a second notch is provided on the conductive strip, when the second conductive slider is located in the second notch, the second conductive part is de-energized, and when the second conductive slider abuts against the conductive strip, the second conductive part is energized.

[0030] In one embodiment, the conductive mechanism includes a conductive ring and a conductive fan, the conductive ring and the conductive fan are integrally formed, the conductive fan is fixed to the inner wall of the positioning tube by a positioning screw, the conductive fan is electrically connected to the buzzer, and the conductive fan is electrically connected to the conductive slip ring.

[0031] In one embodiment, it includes an installation sleeve, the outer wall of the installation sleeve is provided with a limit groove arranged along the axial direction of the installation sleeve, the installation sleeve is installed in the inner cavity of the positioning tube, the conductive fan surface is inserted into the limit groove, and the side wall of the conductive fan surface abuts against the side wall of the limit groove to limit the relative rotation of the installation sleeve and the positioning tube.

[0032] In one possible embodiment, the mounting hole is arranged on the mounting sleeve and is arranged along the axial direction of the mounting sleeve, a power storage cavity is arranged in the mounting sleeve, the mounting hole is connected to the power storage cavity, a peripheral wall of the mounting sleeve is provided with a plug-in groove connected to the mounting hole, the conductive sheet includes a plug-in portion and a connecting portion, the plug-in portion is plugged into the plug-in groove, the conductive screw extends through the mounting hole into the power storage cavity and is electrically connected to the power supply, the conductive screw is threadedly connected to the plug-in portion to limit the axial movement of the conductive screw along the positioning tube, and the connecting portion is located on the outside of the mounting sleeve and is electrically connected to the plug-in portion.

[0033] In one possible implementation mode, a mounting groove with an opening at one end is provided on the rotating rod, a compression spring is provided in the mounting groove, a conductive slide column is slidably installed in the mounting groove, one end of the compression spring abuts against the inner wall of the mounting groove, and the other end of the compression spring abuts against the conductive slide column, an avoidance opening is provided on the peripheral wall of the positioning tube, and the conductive slide column passes through the avoidance opening and abuts against the conductive sheet.

[0034] In one embodiment, the horizontal adjustment mechanism includes a positioning rod, a connecting rod, a positioning screw and a level bubble meter. The positioning rod is fixedly mounted on the pile foundation, the connecting rod is fixedly connected to the outer wall of the positioning tube, the level bubble meter is arranged along the axial direction of the positioning tube and fixedly mounted on the positioning tube, one end of the positioning rod is provided with a plug hole for inserting the connecting rod, the positioning screw is installed on the peripheral wall of the positioning rod and extends into the plug hole, and the connecting rod is inserted into the plug hole and fixed by the positioning screw.

[0035] Compared with the prior art, the pile foundation settlement monitoring device of the present application has the following beneficial effects:

[0036] The present application directly fixes the monitoring device on the pile foundation, measures the angle of deflection of the pile foundation around the positioning tube through the first angle monitoring switch, and measures the angle of deflection of the pile foundation around the second direction through the second angle monitoring switch. Since the second direction and the axis of the positioning tube are in a non-planar vertical state, the above two angles can synthesize the tilt direction of the pile foundation, and at the same time, the above two angles can be used to measure the tilt angle of the pile foundation relative to the horizontal plane, thereby realizing the pile foundation offset measurement;

[0037] Since the monitoring device is directly installed on the pile foundation, the monitoring of the pile foundation is not affected by factors such as soil collapse around the pile foundation, which can improve the accuracy of pile foundation deviation monitoring;

[0038] The first angle monitoring switch and the second angle monitoring switch are used as switches. The two switches cooperate with the power supply and the buzzer. When one of the two switches or both switches are closed at the same time, the buzzer can sound an alarm to remind the monitoring personnel that the pile foundation has tilted, thereby realizing real-time monitoring of the pile foundation deviation.

[0039] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] By reading the detailed description below with reference to the accompanying drawings, the above and other purposes, features and advantages of the exemplary embodiments of the present application will become readily understood. In the accompanying drawings, several embodiments of the present application are shown in an exemplary and non-limiting manner, wherein:

[0041] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0042] Figure 1 A schematic diagram of the installation structure of the settlement monitoring device of the present application is shown;

[0043] Figure 2 A schematic diagram of the installation structure of the protection box of the present application is shown;

[0044] Figure 3 A schematic diagram of the installation structure of the positioning tube is shown;

[0045] Figure 4 A schematic diagram of the expansion of the horizontal adjustment mechanism is shown;

[0046] Figure 5 shows a schematic diagram of the installation of a first angle monitoring switch;

[0047] Figure 6 shows a cross-sectional view of a settlement monitoring device;

[0048] Figure 7 shows a schematic diagram of the expansion of the first angle monitoring switch;

[0049] Figure 8 A schematic diagram of the installation of the conductive sheet is shown;

[0050] Fig. 9 A schematic diagram of the installation of the conductive screw is shown;

[0051] Fig.10 shows a schematic diagram of the installation of the second angle monitoring switch;

[0052] Fig.11 shows a schematic diagram of the expansion of the second angle monitoring switch;

[0053] Fig.12 showing a first cross-sectional view of a second angle monitoring switch;

[0054] Fig.13 showing a second cross-sectional view of a second angle monitoring switch;

[0055] Fig.14 shows a partial schematic diagram of a second angle monitoring switch;

[0056] Fig.15 A top view of the pile foundation installation;

[0057] Fig.16 is a schematic diagram of a pile foundation tilted about a first direction;

[0058] Fig.17 is a schematic diagram of a pile foundation tilted about a second direction;

[0059] Fig.18 This is a schematic diagram of pile foundation inclination angle measurement;

[0060] Fig.19 This is a circuit connection diagram for this application.

[0061] Description of the numbers in the figure:

[0062] A, first direction; B, second direction;

[0063] 1. Positioning tube; 10. Pile foundation; 100. Power supply; 101. Buzzer; 11. Avoidance;

[0064] 2. Level adjustment mechanism; 21. Positioning rod; 211. Plug-in hole; 22. Connecting rod; 23. Positioning screw; 24. Level bubble gauge;

[0065] 3. First angle monitoring switch; 31. First monitoring ring; 311. First angle scale line; 32. First pointer; 33. First conductive part; 331. Conductive screw; 3311. First thread segment; 3312. Second thread segment; 332. Conductive slip ring; 3321. First notch; 333. First conductive slider; 334. Positioning nut;

[0066] 4. Second angle monitoring switch; 41. Rotating shaft; 42. Rotating rod; 421. Second pointer; 422. Mounting slot; 43. Counterweight; 44. Angle scale plate; 441. Second angle scale line; 45. Second conductive part; 451. Conductive sheet; 4511. Plug-in part; 4512. Connecting part; 452. Conductive sliding column; 453. Second conductive sliding block; 454. Conductive strip; 4541. Second notch; 455. Compression spring;

[0067] 5. Conductive mechanism; 51. Conductive ring; 52. Conductive sector;

[0068] 6. Installation sleeve; 61. Limiting groove; 62. Installation hole; 63. Power storage cavity; 64. Plug slot;

[0069] 7. Sealing screw plug; 71. Electrical connection piece;

[0070] 81. Protective door; 811. First observation window; 82. Second observation window; 83. Third observation window. DETAILED DESCRIPTION

[0071] In order to make the purpose, features, and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0072] In this embodiment, a bridge pile foundation is taken as an example to provide a method for measuring the inclination direction and inclination angle of the pile foundation.

[0073] The pile foundation 10 is erected on the ground. For ease of understanding, it is taken as an example that the pile foundation 10 is erected on a horizontal plane. Furthermore, the pile foundation 10 is perpendicular to the horizontal plane.

[0074] During the construction process, due to the influence of soil or other factors, the inclination angle of the pile foundation 10 is not fixed.

[0075] like Fig.15 As shown, a spatial rectangular coordinate system is established with the root of the pile foundation 10 as the origin O, wherein the top view is the XOY plane, and the axis of the pile foundation 10 coincides with the Z axis.

[0076] During the tilting process of the pile foundation 10 , even if the pile foundation 10 rotates around its own axis, the tilting direction and tilting angle of the pile foundation 10 will not be affected; in fact, it is difficult for the pile foundation 10 to rotate around its own axis during settlement and tilting.

[0077] Since the pile foundation 10 is erected on a horizontal plane, the inclination direction of the pile foundation 10 cannot be determined. Fig.15 and Fig.18 As shown, with the XOY plane indicated as horizontal, assuming that the pile foundation 10 tilts toward the third quadrant, the tilting process of the pile foundation 10 can be analyzed in theory.

[0078] like Fig.18 As shown, initially, the pile foundation 10 is erected at point O, and point M is the location where the settlement monitoring device is installed. Here, OM can be represented as the pile foundation 10, and the pile foundation 10 is tilted from the original OM to OM''. The tilting process of the pile foundation 10 can be divided into two steps.

[0079] The first step is to regard the pile foundation OM as being on the XOZ plane, where the XOZ plane can be flipped around the X axis by an angle θ 1 , at this time OM flips to OM', we can know the coordinates of M' (0, OMsinθ 1 , OMcosθ 1 );

[0080] The second step is to regard OM' as being on the YOZ plane, and the YOZ plane is flipped around the Y axis by an angle θ 2 You can reach OM'', at which point the coordinates of M'' are (OMsinθ 2 , OMsinθ 1 , OMcosθ 1 cosθ 2 ), at this time, the bottom of the pile foundation 10 is still located at point O, so the projection of OM′′ on the XOY plane is the inclination direction of the pile foundation 10.

[0081] Among them, the angle of OM offset to OM'' is θ, then:

[0082] .

[0083] Since the length of OM'' is the same as the length of OM, it can be concluded that:

[0084] .

[0085] It can be seen that in order to measure the inclination angle of the pile foundation 10, the settlement monitoring device can be installed at any point of the pile foundation 10. In this case, only the deflection angle θ needs to be measured. 1 and the deflection angle θ 2 That's it.

[0086] It is worth noting that the X direction is the tangent direction of the settlement monitoring device installation point M on the pile foundation 10, and the Y direction is the radial direction of the settlement device installation point M on the pile foundation 10;

[0087] At this time, if Fig.18 As shown in the figure, the angle between the projection of OM'' on the XOY plane and the Y axis is defined as θ 3 ,at this time

[0088] OM''sinθsinθ 3 =OMsinθ 2 , since OM=OM'=OM'', we can know that:

[0089] .

[0090] This can be used to calculate the angle θ between the projection of the pile foundation 10 on the XOY plane and the Y axis after the pile foundation 10 is offset. 3 , which is the deflection direction of the pile foundation 10.

[0091] Since the settlement monitoring device is fixedly installed at point M of the pile foundation 10, point M can be redefined as the origin, and then a spatial coordinate system is established with point M, so that the settlement monitoring device can measure the flip angle θ around the X-axis. 1 , measure the angle θ around the Y axis 2 .

[0092] In this embodiment, if Figure 1 As shown, when the settlement monitoring device is installed on the pile foundation 10, a first direction A and a second direction B are established. It is worth noting that the first direction A can be regarded as the X-axis and the second direction B can be regarded as the Y-axis.

[0093] The settlement monitoring device includes a positioning tube 1, wherein the positioning tube 1 is installed at any point M of the pile foundation 10 through a horizontal adjustment mechanism 2, and the positioning tube 1 is adjusted to a horizontal state by using the horizontal adjustment mechanism 2. At this time, the axial direction of the positioning tube 1 is defined as the first direction A, and a first angle monitoring switch 3 is rotatably installed on the positioning tube 1, wherein the first angle monitoring switch 3 rotates around the first direction A, and a second angle monitoring switch 4 is provided at the bottom of the first angle monitoring switch 3, wherein the second angle monitoring switch 4 serves as a counterweight component, and when the angle of the pile foundation 10 is offset, the second angle monitoring switch 4 can cause the first angle monitoring switch 3 and the positioning tube 1 to rotate relative to each other, wherein the angle at which the first angle monitoring switch 3 and the positioning tube 1 rotate relative to each other is the angle at which the pile foundation 10 is deflected around the first direction A.

[0094] The second angle monitoring switch 4 includes a rotating shaft 41 installed on the first angle monitoring switch 3, wherein the second angle monitoring switch 4 is rotatably connected to the first angle monitoring switch 3 via the rotating shaft 41, and the specific axial direction of the rotating shaft 41 is the second direction B. The deflection angle on the second angle monitoring switch 4 can reflect the deflection angle of the pile foundation 10 around the second direction B.

[0095] In order to monitor the angle θ of the pile foundation 10 deflected around the first direction A 1 , refer to Figure 5 and Figure 6 As shown, the first angle monitoring switch 3 includes a first monitoring ring 31, which is rotatably mounted on the peripheral wall of the positioning tube 1 through a bearing. At this time, the first monitoring ring 31 can rotate around the first direction A, and a first angle scale line 311 is provided on the side wall of the first monitoring ring 31, wherein a first pointer 32 is fixedly mounted on the positioning tube 1, and the first pointer 32 is arranged along the radial direction of the positioning tube 1. The angle θ of the pile foundation 10 deflected around the first direction A can be read through the orthographic projection of the first pointer 32 on the first angle scale line 311. 1 .

[0096] It is worth mentioning here that when the pile foundation 10 is offset, the pile foundation 10 drives the positioning tube 1 to be offset synchronously through the horizontal adjustment mechanism 2. Since the second angle monitoring switch 4 serves as a counterweight component, it can ensure that the first monitoring ring 31 is maintained in the initial state. At this time, the first monitoring ring 31 will rotate relative to the positioning tube 1 around the first direction A. Since the first pointer 32 is fixed on the positioning tube 1, the projection of the first pointer 32 on the first angle scale line 311 changes, so that the deflection angle of the pile foundation 10 around the first direction A can be read.

[0097] In order to monitor the angle of displacement of the pile foundation 10 around the second direction B, in this embodiment, Fig.10 and Fig.11As shown, the second angle monitoring switch 4 also includes a rotating rod 42, a counterweight 43, an angle scale plate 44 and a second pointer 421, wherein the rotating rod 42 is rotatably mounted on the rotating shaft 41 so that the rotating rod 42 can rotate around the second direction B, the counterweight 43 is fixedly mounted on the bottom of the rotating rod 42, and the counterweight 43 can be used to keep the rotating rod 42 in a constant vertical state, wherein the angle scale plate 44 is fixedly mounted on the first monitoring ring 31, and a second angle scale line 441 is provided on a surface of the angle scale plate 44 that is perpendicular to the second direction B, wherein the center of the second angle scale line 441 is located on the axis of the rotating shaft 41, and the second pointer 421 is fixedly mounted on the rotating rod 42, and the projection of the second pointer 421 on the angle scale plate 44 can indicate the angle θ of the pile foundation 10 deflected around the second direction B. 2 .

[0098] Through the above-mentioned arrangement, since the pile foundation 10 is offset, the position of the positioning tube 1 can be changed. The first angle monitoring switch 3 and the second angle monitoring switch 4 are regarded as a whole. If the pile foundation 10 deflects along the second direction B, since the first monitoring ring 31 is mounted on the positioning tube 1, and the first monitoring ring 31 can only rotate around the first direction A, then at this time, the first monitoring ring 31 can be driven by the positioning tube 1 to rotate synchronously around the second direction B, and then the angle scale plate 44 can be driven by the first monitoring ring 31 to deflect around the second direction B. Since the counterweight block 43 can keep the rotating rod 42 in a vertical state, the rotating rod 42 and the angle scale plate 44 rotate relative to each other. At this time, the scale indicated by the second pointer 421 can represent the angle of deflection of the pile foundation 10 in the second direction B.

[0099] Since the settlement monitoring device is directly fixed on the pile foundation 10 , the settlement monitoring device is exposed to the outside world. A harsh environment can easily cause the counterweight 43 to shake, thereby easily affecting the accuracy of the settlement monitoring device.

[0100] Therefore, in this embodiment, if Figure 2 As shown, a protection box is also included, wherein the settlement monitoring device is installed in the inner cavity of the protection box. The protection box is used to provide a stable monitoring environment for the settlement monitoring device to reduce the interference of the external environment on the monitoring results.

[0101] Specifically, the protection box can be directly fixed on the pile foundation 10 .

[0102] In this embodiment, the pile foundation 10 is erected on a horizontal plane as an example. If the initial position of the positioning tube 1 is not adjusted so that the first direction A is not on the horizontal plane, the positioning tube 1 is in a tilted state at this time. Since the first angle monitoring switch 3 is rotatably mounted on the positioning tube 1 through the first monitoring ring 31, and the second angle monitoring switch 4 is rotatably mounted on the first monitoring ring 31 through the rotating shaft 41, the axis of the rotating shaft 41 is the second direction B, the counterweight block 43 will drive the rotating rod 42 to be vertically set, and the angle scale plate 44 will tilt at an angle synchronously with the positioning tube 1, which will cause the second pointer 421 to be projected on the angle scale plate 44 at a position other than zero degrees. Therefore, the positioning tube 1 needs to be horizontally adjusted through the horizontal adjustment mechanism 2.

[0103] Specifically, Figure 3 and Figure 4 As shown, the horizontal adjustment mechanism 2 includes a positioning rod 21, a connecting rod 22, a positioning screw 23 and a horizontal bubble meter 24, wherein the connecting rod 22 is fixedly mounted on the peripheral wall of the positioning tube 1, and the axis of the connecting rod 22 is perpendicular to the axis of the positioning tube 1, the positioning rod 21 is fixedly mounted on the pile foundation 10 by an expansion screw, and the horizontal bubble meter 24 is fixedly mounted on the peripheral wall of the positioning tube 1, wherein the horizontal bubble meter 24 is arranged along the axial direction of the positioning tube 1, and an insertion hole 211 is provided at one end of the positioning rod 21 away from the pile foundation 10, wherein the connecting rod 22 is inserted into the insertion hole 211, and the positioning screw 23 is installed on the side wall of the positioning rod 21, and the end of the positioning screw 23 can extend into the insertion hole 211 and abut against the outer wall of the connecting rod 22 to achieve the fixation of the connecting rod 22.

[0104] Specifically, the positioning screw 23 is connected to the positioning rod 21 by threaded connection, and two positioning screws 23 are provided to enhance the stability of fixing the connecting rod 22 .

[0105] The process of adjusting the position of the positioning tube 1 is as follows: rotate the positioning screw 23 to withdraw the end of the positioning screw 23 from the plug-in hole 211, insert the connecting rod 22 into the plug-in hole 211, rotate the positioning screw 23 to make the end wall of the positioning screw 23 abut against the outer wall of the connecting rod 22, and realize the preliminary positioning of the connecting rod 22, and then rotate the positioning tube 1 around the axis of the positioning rod 21, and judge whether the positioning tube 1 is in a horizontal state by observing the position of the bubble in the horizontal bubble meter 24, thereby completing the position adjustment of the positioning tube 1.

[0106] In order to monitor whether the pile foundation 10 is tilted in real time, in this embodiment, Figure 6 , Figure 7 and Fig. 9As shown, it also includes a power supply 100 and a buzzer 101, wherein one electrode of the power supply 100 is electrically connected to an electrode of the buzzer 101, and the on-off of power between the other electrode of the buzzer 101 and the other electrode of the power supply 100 is controlled by the first angle monitoring switch 3. When the pile foundation 10 is offset, the first angle monitoring switch 3 is closed to achieve power conduction, thereby supplying power to the buzzer 101 to issue an early warning. When the pile foundation 10 does not rotate around the first direction A, the first angle monitoring switch 3 is powered off, and at this time, the buzzer 101 is powered off and no early warning sound is issued.

[0107] Specifically, the first angle monitoring switch 3 controls the power on or off of the circuit through the first conductive part 33 .

[0108] Among them, Fig. 9 As shown, the first conductive part 33 includes a conductive screw 331, a positioning nut 334, a conductive slip ring 332, a first conductive slider 333 and a first notch 3321 provided on the conductive slip ring 332. Specifically, the first pointer 32 is fixedly mounted on the conductive screw 331 through the positioning nut 334. The conductive screw 331 is electrically connected to the power supply 100, so as to transmit power to the first pointer 32. The conductive slip ring 332 is mounted on the first monitoring ring 31. The conductive slip ring 332 is electrically connected to the buzzer 101 through the conductive mechanism 5. The first conductive slider 333 is fixedly mounted on the first pointer 32. When the first conductive slider 333 is located at the first notch 3321, the power circuit between the power supply 100 and the buzzer 101 is disconnected. When the first conductive slider 333 abuts against the conductive slip ring 332, the power circuit between the power supply 100 and the buzzer 101 is connected, so that the buzzer 101 can issue an early warning.

[0109] It is worth noting that the first notch 3321 is disposed on the first monitoring ring 31 , and the first notch 3321 and the installation position of the second angle monitoring switch 4 are symmetrically disposed about the axis of the first monitoring ring 31 .

[0110] Since the second angle monitoring switch 4 acts as a counterweight component after being installed on the first monitoring ring 31, when the first monitoring ring 31 is installed on the positioning tube 1, the first notch 3321 is in an open upward state. In the initial state, when the settlement monitoring device is installed on the pile foundation 10 and the pile foundation 10 has not shifted, in order to prevent the buzzer 101 from being turned on, the first pointer 32 remains in a vertical upward state, so that the first conductive slider 333 is located in the first notch 3321.

[0111] From the above description, we can know that the settlement monitoring device is directly installed on the pile foundation 10. At this time, the positioning tube 1 is installed on the pile foundation 10 through the positioning rod 21. Since the positioning rod 21 needs to drill a hole on the pile foundation 10 and pre-embed the expansion screw sleeve during the installation process, the drill hole will be slightly skewed at this time, which will cause the positioning rod 21 to be not in the horizontal plane, resulting in an angle between the axis of the positioning rod 21 and the axis of the pile foundation 10. If the first pointer 32 is directly fixed on the positioning tube 1 and cannot be adjusted, the first conductive slider 333 on the first pointer 32 will be in direct contact with the conductive slip ring 332, which will cause the buzzer 101 to issue an early warning.

[0112] To solve this problem, Fig. 9 As shown, the first pointer 32 is sleeved on the conductive screw 331, and the conductive screw 331 is provided with a first thread segment 3311, wherein the positioning nut 334 is threadedly connected with the first thread segment 3311, and by rotating the positioning nut 334, a pre-tightening force is applied to the first pointer 32, so that the first pointer 32 can be fixed;

[0113] After the positioning rod 21 of the settlement monitoring device is installed on the pile foundation 10, the positioning tube 1 can be adjusted to a horizontal state by the horizontal adjustment mechanism 2, and then the first pointer 32 can be moved to a vertical state to move the first pointer 32 to the position of the first notch 3321, and finally the first pointer 32 can be fixed using the positioning nut 334.

[0114] In order to electrically connect the conductive slip ring 332 to the buzzer 101, in this embodiment, Figure 6 , Figure 7 and Figure 8 As shown, the conductive mechanism 5 includes a conductive ring 51 and a conductive sector 52, wherein the conductive ring 51 and the conductive sector 52 are integrally formed, and the conductive mechanism 5 is fixedly mounted on the inner wall of the positioning tube 1 by means of positioning screws, and the positioning screws can limit the conductive mechanism 5 from rotating around the first direction A.

[0115] It is worth noting that the positioning screw used to fix the conductive mechanism 5 and the positioning screw 23 used to fix the connecting rod 22 in the plug hole 211 are not the same positioning screw.

[0116] Among them, the first monitoring ring 31 is installed at the end of the positioning tube 1 through a bearing, the conductive ring 51 extends out of the inner cavity of the positioning tube 1, the conductive ring 51 is slidingly connected with the conductive slip ring 332, the conductive slip ring 332 transfers electricity smoothly to the conductive ring 51, and then transfers electricity to the buzzer 101 through the conductive fan 52.

[0117] In order to realize the installation of the power supply 100, in this embodiment, as Figure 5 , Figure 7 and Figure 8 As shown, it also includes a mounting sleeve 6 , wherein a power storage cavity 63 is provided in the mounting sleeve 6 , the power supply 100 is installed in the power storage cavity 63 , and the mounting sleeve 6 is installed in the inner cavity of the positioning tube 1 .

[0118] Since the first pointer 32 is electrically connected to the power source 100 through the conductive screw 331, in this embodiment, Figure 8 The mounting sleeve 6 is provided with a mounting hole 62 which is connected to the power storage cavity 63 , wherein the mounting hole 62 is arranged along the axial direction of the mounting sleeve 6 , and the conductive screw 331 is inserted into the power storage cavity 63 through the mounting hole 62 .

[0119] In order to fix the conductive screw 331, a plug-in slot 64 connected to the mounting hole 62 is further provided on the side wall of the mounting sleeve 6, wherein a conductive sheet 451 is plugged into the plug-in slot 64, and the side wall of the conductive sheet 451 abuts against the side wall of the plug-in slot 64 to limit the rotation of the conductive sheet 451. A second thread segment 3312 is provided on the conductive screw 331, and the second thread segment 3312 can be threadedly connected to the conductive sheet 451, so that the conductive screw 331 can be fixedly installed on the mounting sleeve 6. At this time, the conductive sheet 451 can also transfer the power of the power supply 100 to the outside of the mounting sleeve 6.

[0120] When the pile foundation 10 is offset, in order to enable the first pointer 32 to move synchronously with the pile foundation 10, it is necessary to limit the relative rotation between the installation sleeve 6 and the positioning tube 1, such as Figure 7 and Figure 8 As shown, a limiting groove 61 is provided on the outer wall of the mounting sleeve 6, wherein the limiting groove 61 is arranged along the axial direction of the mounting sleeve 6. When the mounting sleeve 6 is installed inside the inner cavity of the positioning tube 1, the conductive fan surface 52 is inserted into the limiting groove 61, wherein the side wall of the conductive fan surface 52 abuts against the side wall of the limiting groove 61 to limit the rotation of the mounting sleeve 6 around the axis of the positioning tube 1, thereby realizing the positioning of the mounting sleeve 6.

[0121] Specifically, Figure 6 As shown, the conductive sheet 451 includes a plug-in portion 4511 and a connecting portion 4512 , wherein the plug-in portion 4511 is plugged into the plug-in slot 64 , and the connecting portion 4512 is fan-shaped and located outside the mounting sleeve 6 . Specifically, the connecting portion 4512 is located between the mounting sleeve 6 and the inner wall of the positioning tube 1 .

[0122] In order to seal the power supply 100 in the power supply storage chamber 63, in this embodiment, as shown in FIG. Figure 6 and Figure 7As shown, it also includes a sealing plug 7, wherein the sealing plug 7 is provided with a power connection plate 71. When the power supply 100 is installed inside the power supply storage cavity 63, the sealing plug 7 is threadedly installed at the end of the power supply storage cavity 63. At this time, the power connection plate 71 can touch the conductive fan surface 52 to realize electrical connection.

[0123] The buzzer 101 is fixedly mounted on the plugging screw 7 , one electrode of the buzzer 101 passes through the plugging screw 7 and is electrically connected to the power source 100 , and the other electrode of the buzzer 101 is electrically connected to the conductive sector 52 via the electrical connection sheet 71 .

[0124] Since the deflection direction of the pile foundation 10 is not fixed, if the pile foundation 10 does not deflect around the first direction A, but only deflects around the second direction B, then the first pointer 32 is still located inside the first notch 3321, and the first conductive slider 333 is separated from the conductive slip ring 332. At this time, the buzzer 101 cannot achieve electrical connection through the first conductive part 33, which will cause the pile foundation 10 deflection monitoring and warning to be untimely.

[0125] Therefore, in order to solve the above problem, in this embodiment, the second angle monitoring switch 4 is provided with a second conductive portion 45, wherein the second conductive portion 45 can also realize the circuit connection between the power supply 100 and the buzzer 101, such as Fig.19 As shown, the first conductive portion 33 can be regarded as a switch S 1 , the second conductive portion 45 can be regarded as S 2 At this time, the first conductive part 33 and the second conductive part 45 are arranged in parallel, and the closure of any one of the switches of the first conductive part 33 and the second conductive part 45 can realize the connection of the buzzer 101 circuit and issue a sound warning.

[0126] Specifically, Fig.11 and Fig.13 As shown, the second conductive part 45 includes a conductive sliding column 452, a second conductive sliding block 453 and a conductive strip 454, wherein Fig.14As shown, the conductive strip 454 is arc-shaped and fixedly mounted on the angle scale plate 44, the center of the conductive strip 454 is located on the axis of the rotating shaft 41, the second conductive slider 453 is fixedly mounted on the second pointer 421, wherein the conductive strip 454 is provided with a second notch 4541, the conductive slide 452 is slidably mounted on the rotating rod 42, one end of the conductive slide 452 abuts against the connecting portion 4512 of the conductive sheet 451 to receive the power transmitted by the conductive screw 331, the conductive slide 452 is electrically connected to the second conductive slider 453 through a wire, the conductive strip 454 can be electrically connected to the conductive slip ring 332 on the first monitoring ring 31 through the angle scale plate 44, when the second conductive slider 453 is located in the second notch 4541, the second conductive portion 45 disconnects the circuit connection of the buzzer 101, and when the second conductive slider 453 abuts against the conductive strip 454, the buzzer 101 realizes power connection through the second conductive portion 45.

[0127] Specifically, the rotating rod 42 is made of insulating material.

[0128] In order to realize the installation of the conductive sliding column 452, in this embodiment, as shown in FIG. Fig.12 and Fig.13 As shown, the rotating rod 42 is provided with a mounting groove 422 with an opening on one side, and the conductive sliding column 452 is slidably installed in the mounting groove 422. A compression spring 455 is also provided in the mounting groove 422. One end of the compression spring 455 abuts against the mounting groove 422, and the other end of the compression spring 455 abuts against the conductive sliding column 452, so as to touch the conductive sliding column 452 with the connecting part 4512 to achieve circuit connectivity.

[0129] Since the connecting portion 4512 of the conductive sheet 451 is located in the gap between the mounting sleeve 6 and the positioning tube 1 , in order to achieve electrical connection between the conductive slide 452 and the conductive sheet 451 , an escape opening 11 is further provided on the side wall of the positioning tube 1 , and the conductive slide 452 can pass through the escape opening 11 and contact the conductive sheet 451 .

[0130] In this embodiment, if Fig.16 As shown, when the pile foundation 10 is offset by an angle around the X-axis on the XOZ plane, the positioning tube 1 and the first pointer 32 will be driven to deflect synchronously. At this time, the second angle monitoring switch 4 keeps the first monitoring ring 31 in a vertical state, and the first pointer 32 and the first angle scale line 311 rotate relative to each other, so as to measure the deflection angle of the pile foundation 10 around the X-axis, that is, the deflection angle of the pile foundation 10 around the first direction A.

[0131] like Fig.17 As shown, the pile foundation 10 is deflected on the YOZ plane and around the Y axis. The deflection angle here can be displayed by the second angle monitoring switch 4, and the deflection angle θ can be read in conjunction with the first angle monitoring switch 3. 1 and θ 2According to the above calculation formula, the deflection direction and the deflection angle of the pile foundation 10 can be obtained.

[0132] In this embodiment, if Figure 2 As shown, a protective door 81 is provided on the protective box. After the positioning rod 21 is fixed to the pile foundation 10 by the expansion screw, the positioning rod 21 can be extended into the inner cavity of the protective box, and then the settlement monitoring device is placed in the protective box. The positioning tube 1 is adjusted to a horizontal state by the horizontal adjustment mechanism 2, and then the first pointer 32 is moved by rotating the positioning nut 334 so that the first pointer 32 is in a vertical state, the power connection of the first conductive part 33 is disconnected, and then the protective door 81 can be closed.

[0133] Specifically, a third observation window 83 is provided on the top wall of the protection box. When the settlement monitoring device is installed inside the protection box, the state of the level bubble meter 24 can be observed through the third observation window 83 during the horizontal adjustment of the positioning tube 1; a second observation window 82 is provided on the side wall of the protection box, through which the projection of the second pointer 421 on the angle scale plate 44 can be observed, so as to read the deflection angle of the pile foundation 10 around the second direction B; a first observation window 811 is provided on the protection door 81, through which the projection of the first pointer 32 on the first angle scale line 311 can be observed, so as to read the deflection angle of the pile foundation 10 around the first direction A.

[0134] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps recorded in this disclosure can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution disclosed in this application can be achieved, and this document is not limited here.

[0135] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0136] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A pile foundation settlement monitoring device, characterized in that: It comprises a positioning tube (1) fixedly mounted on a pile foundation (10); A level adjustment mechanism (2), the level adjustment mechanism (2) is installed between the positioning tube (1) and the pile foundation (10) to adjust the levelness of the positioning tube (1); A first angle monitoring switch (3), which is mounted on the peripheral wall of the positioning tube (1) and rotates around the axis of the positioning tube (1) to monitor the deflection angle of the pile foundation (10) around the axis of the positioning tube (1); A second angle monitoring switch (4), which is mounted at the bottom of the first angle monitoring switch (3) and rotates around a second direction (B) to monitor the angle of deflection of the pile foundation (10) around the second direction (B), wherein the projection of the second direction (B) on the horizontal plane where the positioning tube (1) is located is perpendicular to the axis of the positioning tube (1); The first angle monitoring switch (3) and the second angle monitoring switch (4) are arranged in parallel; It also includes a power supply (100) and a buzzer (101), and the first angle monitoring switch (3) and the second angle monitoring switch (4) are connected in series with the power supply (100) and the buzzer (101).

2. A pile foundation settlement monitoring device according to claim 1, characterized in that: The first angle monitoring switch (3) comprises a first monitoring ring (31), and the first monitoring ring (31) is rotatably mounted on the peripheral wall of the positioning tube (1); First angle scale lines (311), the first angle scale lines (311) are arranged on the first monitoring ring (31) and are distributed around the circumference of the first monitoring ring (31); A first pointer (32), the first pointer (32) is fixedly mounted on the positioning tube (1), and the first pointer (32) extends along the radial direction of the positioning tube (1); The second angle monitoring switch (4) is installed as a counterweight component at the bottom of the first monitoring ring (31) to achieve relative rotation between the positioning tube (1) and the first monitoring ring (31); The first angle monitoring switch (3) comprises a first conductive part (33), which is connected in series with a power source (100) and a buzzer (101) to realize power-on or power-off control of the buzzer (101).

3. A pile foundation settlement monitoring device according to claim 2, characterized in that: The second angle monitoring switch (4) comprises a rotating shaft (41), a rotating rod (42), a counterweight (43) and an angle scale plate (44); The rotating shaft (41) is mounted on the first monitoring ring (31), and the axis of the rotating shaft (41) is consistent with the second direction (B); The counterweight (43) is fixedly mounted on the rotating rod (42), and the rotating rod (42) is connected to the rotating shaft (41) for rotation around the second direction (B); The angle scale plate (44) is fixedly mounted on the first monitoring ring (31), and a second angle scale line (441) is provided on the angle scale plate (44), and the center of the second angle scale line (441) coincides with the axis of the rotating shaft (41); A second pointer (421) pointing to a second angle scale line (441) is fixedly provided on the rotating rod (42); The second angle monitoring switch (4) further comprises a second conductive part (45), which is connected in series with the power supply (100) and the buzzer (101) to realize power-on or power-off control of the buzzer (101); The first conductive part (33) and the second conductive part (45) are arranged in parallel.

4. A pile foundation settlement monitoring device according to claim 3, characterized in that: The first conductive part (33) comprises a conductive screw (331), a conductive slip ring (332), a first conductive sliding block (333) and a positioning nut (334); The conductive screw (331) is fixedly mounted on the positioning tube (1) and is electrically connected to one of the electrodes of the power source (100); A conductive slip ring (332) is mounted on the first monitoring ring (31). The conductive slip ring (332) is electrically connected to one of the electrodes of the buzzer (101) through a conductive mechanism (5). The other electrode of the buzzer (101) is electrically connected to the other electrode of the power supply (100). A first conductive slider (333) is fixedly mounted on the first pointer (32). The first pointer (32) is sleeved on the outer side of the conductive screw (331) and fixed by a positioning nut (334). A first notch (3321) is provided on the conductive slip ring (332). The first notch (3321) and the second angle monitoring switch (4) are symmetrically arranged about the axis of the first monitoring ring (31). When the first conductive slider (333) is located in the first notch (3321), the first conductive part (33) is de-energized. When the first conductive slider (333) abuts against the conductive slip ring (332), the first conductive part (33) is energized.

5. A pile foundation settlement monitoring device according to claim 4, characterized in that: The second conductive part (45) comprises a conductive sheet (451), a conductive slide post (452), a second conductive slider (453) and a conductive strip (454); the conductive sheet (451) is electrically connected to the conductive screw (331); the conductive slider (452) is slidably mounted on the rotating rod (42) and abuts against the conductive sheet (451); the second conductive slider (453) is fixedly mounted on the second pointer (421) and slidably connected to the conductive slider (452) via a wire; the conductive strip (454) is fixedly mounted on the angle scale plate (44); the conductive strip (454) is electrically connected to the conductive mechanism (5); a second notch (4541) is provided on the conductive strip (454); when the second conductive slider (453) is located in the second notch (4541), the second conductive part (45) is de-energized; when the second conductive slider (453) abuts against the conductive strip (454), the second conductive part (45) is energized.

6. A pile foundation settlement monitoring device according to claim 5, characterized in that: The conductive mechanism (5) comprises a conductive ring (51) and a conductive fan surface (52), the conductive ring (51) and the conductive fan surface (52) are integrally formed, the conductive fan surface (52) is fixed to the inner wall of the positioning tube (1) by means of a positioning screw, the conductive fan surface (52) is electrically connected to the buzzer (101), and the conductive fan surface (52) is electrically connected to the conductive slip ring (332).

7. A pile foundation settlement monitoring device according to claim 6, characterized in that: The invention comprises a mounting sleeve (6), the outer wall of which is provided with a limiting groove (61) arranged along the axial direction of the mounting sleeve (6), the mounting sleeve (6) is mounted in the inner cavity of the positioning tube (1), the conductive fan surface (52) is inserted into the limiting groove (61), and the side wall of the conductive fan surface (52) abuts against the side wall of the limiting groove (61) to limit the relative rotation of the mounting sleeve (6) and the positioning tube (1).

8. A pile foundation settlement monitoring device according to claim 7, characterized in that: The mounting hole (62) is arranged on the mounting sleeve (6) and is arranged along the axial direction of the mounting sleeve (6); a power storage chamber (63) is arranged in the mounting sleeve (6); the mounting hole (62) is communicated with the power storage chamber (63); a peripheral wall of the mounting sleeve (6) is provided with a plug-in slot (64) communicated with the mounting hole (62); the conductive sheet (451) comprises a plug-in portion (4511) and a connecting portion (4512); the plug-in portion (4511) is plugged into the plug-in slot (64); the conductive screw (331) passes through the mounting hole (62) and extends into the power storage chamber (63) and is electrically connected to the power supply (100); the conductive screw (331) is threadedly connected to the plug-in portion (4511) to limit the conductive screw (331) from moving along the axial direction of the positioning tube (1); the connecting portion (4512) is located on the outside of the mounting sleeve (6) and is electrically connected to the plug-in portion (4511).

9. A pile foundation settlement monitoring device according to claim 5 or 7, characterized in that: The rotating rod (42) is provided with a mounting groove (422) with an opening at one end, a compression spring (455) is provided in the mounting groove (422), a conductive sliding column (452) is slidably installed in the mounting groove (422), one end of the compression spring (455) abuts against the inner wall of the mounting groove (422), and the other end of the compression spring (455) abuts against the conductive sliding column (452), a clearance opening (11) is provided on the peripheral wall of the positioning tube (1), and the conductive sliding column (452) passes through the clearance opening (11) and abuts against the conductive sheet (451).

10. A pile foundation settlement monitoring device according to claim 1, characterized in that: The horizontal adjustment mechanism (2) comprises a positioning rod (21), a connecting rod (22), a positioning screw (23) and a horizontal bubble meter (24); the positioning rod (21) is fixedly mounted on the pile foundation (10); the connecting rod (22) is fixedly connected to the outer wall of the positioning tube (1); the horizontal bubble meter (24) is arranged along the axial direction of the positioning tube (1) and is fixedly mounted on the positioning tube (1); one end of the positioning rod (21) is provided with a plug hole (211) for inserting the connecting rod (22); the positioning screw (23) is mounted on the peripheral wall of the positioning rod (21) and extends into the plug hole (211); the connecting rod (22) is plugged into the plug hole (211) and fixed by the positioning screw (23).

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