Pile foundation settlement monitoring device

Abstract

The application provides a pile foundation settlement monitoring device, which comprises a base, a lever arm and a positioning seat. The base is used for being fixed on the ground outside a pile foundation settlement area, and has a swing part hinged thereon. The swing part and the base are provided with a support structure. The lever arm is rotationally connected to the swing part, and two ends of the lever arm are respectively connected with a mounting seat and an arc-shaped rack. The distance between the mounting seat and the rotation shaft of the lever arm is smaller than the distance between the arc-shaped rack and the rotation shaft of the lever arm. The mounting seat is used for being connected with the pile foundation, so that the lever arm rotates synchronously when the pile foundation settles. The positioning seat is used for being fixed on the ground on the side of the base away from the pile foundation, and is provided with a monitoring gear rotationally connected thereto and meshing with the arc-shaped rack. When the pile foundation settles, the lever arm rotates, so that the arc-shaped rack drives the monitoring gear to rotate. The pile foundation settlement monitoring device can monitor the settlement of the pile foundation through a mechanical structure, and can reduce errors and improve the reliability of the monitoring result.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of pile foundation construction, and particularly relates to a pile foundation settlement monitoring device. BACKGROUND

[0002] Pile foundation settlement monitoring operation refers to measurement and recording work on the settlement of pile foundation, specifically a process of setting a measurement point and monitoring the elevation change of pile foundation by using a measuring instrument. By analyzing the pile foundation settlement monitoring result, the deformation of pile foundation can be understood, settlement problems can be found in time, and the stability and safety of pile foundation can be ensured, thereby providing reliable data support for engineering design and construction.

[0003] In the prior art, the pile foundation settlement monitoring device is usually fixed on the ground outside the pile foundation. When the settlement of the pile foundation is greater than a threshold value, the pile foundation settlement monitoring device records the corresponding time and settlement and transmits the same to a data record.

[0004] The inventor finds that when the settlement phenomenon occurs in the pile foundation area, the fixing area of the pile foundation settlement monitoring device usually also has a certain degree of settlement phenomenon, which causes the monitoring of the settlement to form an error and affects the monitoring effect of the settlement of the pile foundation. SUMMARY

[0005] The embodiment of the application provides a pile foundation settlement monitoring device, which aims to monitor the settlement phenomenon of the pile foundation through a mechanical structure and avoid error generation and improve the reliability of the monitoring result.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the application is as follows:

[0007] The application provides a pile foundation settlement monitoring device, which comprises:

[0008] A base is used for being fixed on the ground outside the pile foundation settlement area. The base is provided with a swing member hinged thereto, and a support structure is arranged between the base and the swing member, so that the length direction of the swing member is parallel to the up-down direction.

[0009] A lever arm is rotationally connected to the swing member, and two ends of the lever arm are respectively connected with a mounting seat and an arc-shaped rack. The distance between the mounting seat and the rotation shaft of the lever arm is less than the distance between the arc-shaped rack and the rotation shaft of the lever arm. The mounting seat is used for being connected with the pile foundation, so that the pile foundation drives the lever arm to rotate when the pile foundation settles.

[0010] A positioning seat is used for being fixed on the ground away from the pile foundation settlement area of the base, and the positioning seat is provided with a monitoring gear rotationally connected thereto and engaged with the arc-shaped rack, so that the monitoring gear rotates synchronously when the lever arm rotates.

[0011] In a possible implementation, the base has an upwardly extending column, and the upper end of the column has a first ball; the lower end of the swing member is connected with a support disc, the lower side of the support disc has a protrusion, and the extended end surface of the protrusion has a first concave ball groove, and the first ball is embedded in the first concave ball groove;

[0012] The first ball is made of elastic material, and / or the protrusion is made of elastic material; the support structure comprises:

[0013] A rotating disc coaxially covers the outer periphery of the column, and is drivingly connected with a rotating driving member for driving the rotating disc to rotate; and

[0014] Two linear cylinders are fixedly arranged on the upper side of the rotating disc, and are symmetrically arranged with the column as the axis;

[0015] The power output shaft of each linear cylinder is parallel to the axial direction of the column, and the power output end of each linear cylinder is connected with the support disc.

[0016] In a possible implementation, a plurality of tooth grooves are arranged on the outer peripheral wall of the rotating disc, and the rotating driving member comprises:

[0017] A rotating motor is fixedly arranged on the base, and the power output shaft of the rotating motor is parallel to the axial direction of the support disc; and

[0018] A transmission gear is fixedly connected to the power output end of the rotating motor, and the tooth end of the transmission gear is engaged with the tooth groove.

[0019] In a possible implementation, a protective shell is arranged on the base, the protective shell covers the outside of the support disc, and surrounds the swing member.

[0020] In a possible implementation, the swing member has a mounting table and an infrared receiving plate arranged at intervals along the length direction of the swing member, the mounting table is above the infrared receiving plate, and the mounting table further comprises:

[0021] A second concave ball groove is arranged on the side of the mounting table facing the infrared receiving plate;

[0022] A second ball is embedded in the second concave ball groove; and

[0023] An infrared emitter is arranged between the mounting table and the infrared receiving plate, and is connected with the second ball through a pull rope.

[0024] The infrared receiving plate is provided with a plurality of indicating parts arranged coaxially and in annular shape; when the length direction of the swing part is parallel to the up-down direction, the pull rope is adapted to be in a drooping state with the length direction parallel to the up-down direction, and the infrared rays of the infrared emitter are projected at the center of the indicating part.

[0025] In a possible implementation, the swing part is provided with a plurality of positioning holes arranged at intervals along the length direction thereof, and the mounting table is provided with an alignment hole adapted to communicate with any one of the positioning holes; the mounting table further comprises:

[0026] A plug shaft is adapted to be plugged into the positioning hole and the alignment hole in communication with each other, one end of the plug shaft is provided with an anti-disengagement part extending outward, and the other end is provided with an anti-disengagement bolt threadedly connected with the end face thereof.

[0027] In a possible implementation, the arc-shaped rack is provided with a receiving groove adapted to receive the lever arm on the side opposite to the monitoring gear, and the arc-shaped rack is provided with a mounting hole penetrating through along the thickness direction thereof and in communication with the receiving groove;

[0028] The lever arm is provided with an alignment hole in communication with the mounting hole, and the lever arm further comprises:

[0029] A connecting bolt is adapted to be plugged into the alignment hole and the mounting hole in communication with each other; the connecting bolt is provided with a head portion abutting against the outer side surface of the arc-shaped rack, and the connecting bolt is drivingly connected with a connecting nut adapted to abut against the other side of the arc-shaped rack.

[0030] In a possible implementation, the mounting seat is hingedly connected with the lever arm, so that when the bottom surface of the mounting seat is connected with the pile foundation, the lever arm is adapted to be obliquely arranged.

[0031] In a possible implementation, the positioning seat is provided with a mounting shaft, and the monitoring gear is sleeved on the mounting shaft; the positioning seat is further provided with an arc-shaped hole extending around the mounting shaft, and the monitoring gear is provided with an indicating shaft plugged into the arc-shaped hole;

[0032] The outer side surface of the positioning seat is provided with a scale mark arranged around the mounting shaft and outside the arc-shaped hole.

[0033] In a possible implementation, the pile foundation settlement monitoring device further comprises:

[0034] A plurality of reinforcing piles are adapted to be fixed on the ground between the base and the positioning seat, and are arranged at intervals along the direction of the base towards the positioning seat; each of the reinforcing piles is provided with a round convex portion abutting against the lower side surface of the lever arm to support the lever arm.

[0035] In the embodiment of the present application, the assembly of the device can be completed by fixing the base and the positioning seat, connecting the mounting seat and the pile foundation. On this basis, when the pile foundation appears settlement phenomenon, the lever arm will swing synchronously, the arc-shaped rack will swing upward with the rotation axis of the lever arm as the axis, and then the monitoring gear will rotate relative to the positioning seat to form a rotation angle for observation and recording by the staff.

[0036] In the embodiment of the present application, the assembly of the device can be completed by fixing the base and the positioning seat, connecting the mounting seat and the pile foundation. On this basis, when the pile foundation appears settlement phenomenon, the lever arm will swing synchronously, the arc-shaped rack will swing upward with the rotation axis of the lever arm as the axis, and then the monitoring gear will rotate relative to the positioning seat to form a rotation angle for observation and recording by the staff.

[0037] In the above process, since the distance between the positioning seat and the settlement area of the pile foundation is far, the area where the positioning seat is located is generally not affected by the settlement of the pile foundation. However, since the distance between the positioning seat and the settlement area of the pile foundation is close, the positioning seat will generally have different degrees of settlement phenomenon synchronously with the settlement of the pile foundation. When this settlement phenomenon occurs, in order to avoid its influence on the monitoring result of the pile foundation settlement, the connection position of the swing piece and the lever arm can be adjusted to the initial position to reduce the influence caused by the settlement.

[0038] Compared with the prior art, the pile foundation settlement monitoring device provided by the embodiment can monitor the settlement phenomenon of the pile foundation through a mechanical structure, and can reduce errors and improve the reliability of the monitoring result. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0040] Figure 1 The perspective structural schematic diagram of the pile foundation settlement monitoring device provided by the embodiment of the present application is shown in the figure.

[0041] Figure 2 The front view of the pile foundation settlement monitoring device provided by the embodiment of the present application is shown in the figure. Figure 1

[0042] The front view of the pile foundation settlement monitoring device provided by the embodiment of the present application is shown in the figure. Figure 3 Figure 2 The front view of the pile foundation settlement monitoring device provided by the embodiment of the present application is shown in the figure.

[0043] Figure 4 The cross-sectional structural schematic diagram of the pile foundation settlement monitoring device provided by the embodiment of the present application is shown in the figure.

[0044] Figure 5 The cross-sectional structural schematic diagram of the pile foundation settlement monitoring device provided by the embodiment of the present application is shown in the figure.​Figure 4 Partial enlarged view at middle circle B;

[0045] Figure 6 Schematic diagram of the three-dimensional structure of the lever arm, mounting seat and arc-shaped rack in the combined state adopted by the embodiment of the present application;

[0046] Figure 7 Schematic diagram of the structure of the lever arm and arc-shaped rack in the exploded perspective adopted by the embodiment of the present application;

[0047] Figure 8 Schematic diagram of the structure of the positioning seat and monitoring gear in the exploded perspective adopted by the embodiment of the present application;

[0048] Figure 9 Schematic diagram of the three-dimensional structure of the rotating driving member and base in the exploded perspective adopted by the embodiment of the present application;

[0049] Figure 10 Schematic diagram of the structure of the support structure adopted by the embodiment of the present application;

[0050] Figure 11 Schematic diagram of the three-dimensional structure of the swing member and mounting table in the combined state adopted by the embodiment of the present application;

[0051] Figure 12 Schematic diagram of the three-dimensional structure of the swing member and mounting table in the combined state adopted by the embodiment of the present application; Figure 11 Partial enlarged view at middle frame C;

[0052] Figure 13 Schematic diagram of the sectional structure of the mounting table adopted by the embodiment of the present application;

[0053] Figure 14 Schematic diagram of the three-dimensional structure of the infrared receiving plate and infrared emitter in the exploded perspective adopted by the embodiment of the present application;

[0054] Explanation of reference signs: 1, base; 11, stand; 111, first ball type piece; 12, protective shell; 2, lever arm; 21, butt joint hole; 22, connecting bolt; 221, connecting nut; 3, positioning seat; 31, monitoring gear; 311, indicating shaft; 32, mounting shaft; 33, arc-shaped hole; 34, scale mark; 4, swing piece; 41, support disc; 411, protruding part; 412, first concave ball groove; 42, positioning hole; 5, support structure; 51, rotating disc; 511, tooth groove; 52, linear cylinder; 6, rotating driving member; 61, rotating motor; 62, transmission gear; 7, mounting table; 71, second concave ball groove; 72, second ball type piece; 73, alignment hole; 74, insertion shaft; 741, anti-falling part; 742, anti-falling bolt; 8, infrared receiving plate; 81, indicating part; 9, infrared emitter; 91, pull rope; 10, mounting seat; 20, arc-shaped rack; 201, containing groove; 202, mounting hole; 30, reinforcing pile; 301, round protruding part. DETAILED DESCRIPTION

[0055] In order to make the technical problems to be solved by the present application, the technical solutions and the beneficial effects clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not intended to limit the present application.

[0056] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0057] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0058] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0059] Please see Figures 1 to 14The pile foundation settlement monitoring device provided by the present application will be described below. The pile foundation settlement monitoring device provided by the present application comprises a base 1, a lever arm 2 and a positioning seat 3.

[0060] The base 1 is used to be fixed on the ground outside the pile foundation settlement area. It should be noted that the fixing area of the base 1 is usually selected to be at the edge of the pile foundation settlement area in the normal state. The purpose of this design is to avoid the influence of the settlement of the pile foundation on the stability of the main structure of the base 1 when the settlement of the pile foundation is predictable. When the settlement of the pile foundation is unpredictable and exceeds the predicted result, the base 1 will also sink synchronously, and the degree of the sinking of the base 1 is less than that of the pile foundation. In order to ensure the effective monitoring of the pile foundation settlement monitoring device, the base 1 or part of the components on the base 1 needs to be leveled when the monitoring result is obtained.

[0061] The base 1 is provided with a swing piece 4 which is hinged to the base 1. It should be noted that the hinge relationship here has multiple degrees of freedom, that is, when the base 1 is kept in the vertical state, the swing piece 4 can swing in multiple horizontal directions with different angles as the axis.

[0062] The base 1 and the swing piece 4 are provided with a support structure 5. The support structure 5 can limit the swing of the swing piece 4 relative to the base 1, so that the length direction of the swing piece 4 is parallel to the up-down direction. Similarly, when the base 1 sinks and tilts, the support structure 5 can adjust the tilt angle of the swing piece 4, so that the upper end of the swing piece 4 is reset.

[0063] The lever arm 2 is rotationally connected to the upper end of the swing piece 4 in the horizontal direction, and the rotation axis is perpendicular to the direction of the base 1 towards the pile foundation. In this embodiment, the two ends of the lever arm 2 are respectively connected with a mounting seat 10 and an arc-shaped rack 20. The distance between the mounting seat 10 and the rotation axis of the lever arm 2 is less than the distance between the arc-shaped rack 20 and the rotation axis of the lever arm 2.

[0064] In actual use, the mounting seat 10 is used to be connected with the pile foundation, so that the pile foundation can drive the lever arm 2 to rotate synchronously when the pile foundation sinks.

[0065] The positioning seat 3 is used to be fixed on the ground away from the pile foundation settlement area of the base 1, and the positioning seat 3 is provided with a monitoring gear 31 which is rotationally connected to the positioning seat 3 and meshes with the arc-shaped rack 20, so that the monitoring gear 31 rotates synchronously when the lever arm 2 rotates.

[0066] In combination with the foregoing, it is particularly noted that when the base 1 is tilted due to settlement, although the swing member 4 can be moved to a position close to the initial position by adjusting the support structure 5, the connection position of the swing member 4 and the lever arm 2 is displaced from the initial state, but since the displacement is small and does not cause the arc-shaped rack 20 and the monitoring gear 31 to separate, this error can generally be accepted and ignored. However, in order to further improve the stability of the device during use, how to eliminate this error is described in detail below; for ease of description, this error is defined as a position error.

[0067] In the embodiments of the present application, the assembly of the device can be completed by fixing the base 1 and the positioning seat 3, connecting the mounting seat 10 and the pile foundation. On this basis, when the pile foundation settles, the lever arm 2 will swing synchronously, causing the arc-shaped rack 20 to swing upward around the rotation axis of the lever arm 2, and further causing the monitoring gear 31 to rotate relative to the positioning seat 3, forming a rotation angle that can be observed and recorded by the worker.

[0068] In the embodiments of the present application, the assembly of the device can be completed by fixing the base 1 and the positioning seat 3, connecting the mounting seat 10 and the pile foundation. On this basis, when the pile foundation settles, the lever arm 2 will swing synchronously, causing the arc-shaped rack 20 to swing upward around the rotation axis of the lever arm 2, and further causing the monitoring gear 31 to rotate relative to the positioning seat 3, forming a rotation angle that can be observed and recorded by the worker.

[0069] In the above process, since the positioning seat 3 is far away from the settlement area of the pile foundation, the area where the positioning seat 3 is located is generally not affected by the settlement of the pile foundation. However, since the positioning seat 3 is close to the settlement area of the pile foundation, the positioning seat 3 will generally settle to different degrees synchronously with the settlement of the pile foundation. When this settlement occurs, in order to avoid affecting the monitoring result of the settlement of the pile foundation, the swing member 4 and the lever arm 2 can be moved towards the initial position by adjusting the support structure 5 to eliminate the effects caused by the settlement.

[0070] Compared with the prior art, the pile foundation settlement monitoring device provided by the embodiments can monitor the settlement of the pile foundation through a mechanical structure, and can reduce errors and improve the reliability of the monitoring result.

[0071] In some embodiments, as shown in Figure 5 , Figure 9 and Figure 10 , the base 1 has an upward extending column 11, and the upper end of the column 11 has a first spherical member 111; the lower end of the swing member 4 is connected with a support disc 41, the lower side of the support disc 41 has a protruding portion 411, and the extending end surface of the protruding portion 411 has a first concave spherical groove 412, the first spherical member 111 is embedded in the first concave spherical groove 412 to form a spherical hinge connection, so that the swing member 4 can swing in multiple degrees of freedom relative to the base 1.

[0072] The first spherical member 111 is made of elastic material, and / or the convex part 411 is made of elastic material, so that the distance between the base 1 and the swing member 4 can be adjusted to a certain extent, thereby eliminating the aforementioned position error.

[0073] Therefore, the support structure 5 comprises a rotating disc 51 and two linear cylinders 52.

[0074] The rotating disc 51 is coaxially arranged on the outer periphery of the column 11, and is drivingly connected with a rotating driving member 6 for driving the rotating disc 51 to rotate.

[0075] The two linear cylinders 52 are fixedly arranged on the upper side of the rotating disc 51 and are symmetrically arranged about the column 11. Before adjusting the two linear cylinders 52, the rotating driving member 6 is rotated to make the arrangement direction of the two linear cylinders 52 and the projection direction of the inclination direction of the rotating disc 51 be in the same direction.

[0076] The power output shaft of each linear cylinder 52 is parallel to the axial direction of the column 11, and the power output end of each linear cylinder 52 is connected with the support disc 41. It should be noted that the lower side of the support disc 41 is provided with an annular guide rail, and the lower side of the guide rail is provided with an annular groove suitable for embedding the power output end of the linear cylinder 52.

[0077] In actual use, by adjusting the extension amount of the two linear cylinders 52 (i.e. controlling the extension of the cylinder shaft of one linear cylinder 52 and the retraction of the cylinder shaft of the other linear cylinder 52), the length direction of the swing member 4 can be directed to the initial position of the swing member 4 and the rotating shaft of the lever arm 2. On this basis, by synchronously adjusting the extension amount of the two linear cylinders 52 (i.e. controlling the synchronous extension or retraction of the cylinder shafts of the two linear cylinders 52), the rotating shaft of the swing member 4 and the lever arm 2 can be returned to the initial position, so as to achieve the technical purpose of eliminating the position error. In actual use, this technical step can be selectively implemented according to engineering needs.

[0078] In some embodiments, as shown in Figure 9 and Figure 10 The outer peripheral wall of the rotating disc 51 is provided with a plurality of tooth grooves 511 arranged at intervals in the circumferential direction, and the rotating driving member 6 comprises a rotating motor 61 and a transmission gear 62.

[0079] The rotating motor 61 is fixedly arranged on the base 1, and the power output shaft thereof is parallel to the axial direction of the support disc 41. In this embodiment, the upper side of the base 1 is provided with a sunken groove, and the rotating motor 61 is fixedly embedded in the sunken groove.

[0080] The transmission gear 62 is fixedly connected to the power output end of the rotating motor 61, and the tooth end thereof is engaged with the tooth groove 511, so that when the rotating motor 61 is started, the transmission gear 62 drives the rotating disc 51 to rotate synchronously, thereby changing the position of the two linear cylinders 52 relative to the base 1, so as to adjust the inclination angle of the support disc 41 by controlling the extension amount of the two linear cylinders 52.

[0081] In some embodiments, as shown in Figure 4 and Figure 5 , a protective shell 12 is sleeved on the base 1, which covers the outside of the support disc 41 and is arranged around the swing member 4, so as to avoid interference with the adjustment of the swing member 4 and to some extent prevent rain, dust and other impurities from falling in.

[0082] In some embodiments, as shown in Figure 11 and Figure 14 , the swing member 4 has a mounting table 7 and an infrared receiving plate 8 arranged at intervals along the length direction thereof, and the mounting table 7 is above the infrared receiving plate 8 after the swing member 4 is fixed.

[0083] Based on this, the aforementioned mounting table 7 further comprises a second concave spherical groove 71, a second spherical member 72 and an infrared emitter 9.

[0084] The second concave spherical groove 71 is opened on the side of the mounting table 7 facing the infrared receiving plate 8, and the second spherical member 72 is embedded in the second concave spherical groove 71.

[0085] The infrared emitter 9 is arranged between the mounting table 7 and the infrared receiving plate 8, and is connected to the second spherical member 72 through a pull rope 91.

[0086] Among them, the infrared receiving plate 8 is provided with a plurality of indication parts 81 coaxially arranged and each in the form of a ring; when the length direction of the swing member 4 is parallel to the up-down direction, the pull rope 91 is adapted to be in a state of sagging with its length direction parallel to the up-down direction, and the infrared rays of the infrared emitter 9 are projected at the center of the indication part 81.

[0087] When the base 1 tilts due to settlement, the distance between the infrared emitter 9 and the infrared receiving plate 8 changes, and the distance between the infrared rays projected by the infrared emitter 9 and the center of the indication part 81 changes synchronously; when the swing member 4 needs to be adjusted, the two change values can be converted into adjustment data feedback to realize the automatic adjustment of the swing member 4 under the control of the system.

[0088] In some embodiments, as shown in Figures 11 to 13 , the swing member 4 has a plurality of positioning holes 42 arranged at intervals along the length direction thereof, and the mounting table 7 is provided with an alignment hole 73 adapted to communicate with any one of the positioning holes 42.

[0089] Based on this, the installation table 7 further comprises an insertion shaft 74, which is adapted to be inserted into the positioning hole 42 and the counter-positioning hole 73 in communication with each other, one end of the insertion shaft 74 has an outwardly extending anti-disengagement part 741, and the other end has an anti-disengagement bolt 742 threadedly connected with the end face thereof.

[0090] In some embodiments, as shown in Figure 6 and Figure 7 , the arc-shaped rack 20 is provided with an accommodating groove 201 adapted for the insertion of the lever arm 2 on the side thereof facing away from the monitoring gear 31, and the arc-shaped rack 20 is provided with a mounting hole 202 penetrating along the thickness direction thereof in communication with the accommodating groove 201.

[0091] In some embodiments, as shown in and

[0092] , the arc-shaped rack 20 is provided with an accommodating groove 201 adapted for the insertion of the lever arm 2 on the side thereof facing away from the monitoring gear 31, and the arc-shaped rack 20 is provided with a mounting hole 202 penetrating along the thickness direction thereof in communication with the accommodating groove 201.

[0093] In some embodiments, as shown in Figure 2 and Figure 6 , the mounting seat 10 is hingedly connected with the lever arm 2, so that when the bottom surface of the mounting seat 10 is connected with the pile foundation, the lever arm 2 is adapted to be obliquely arranged, so as to facilitate the assembly of the device.

[0094] In some embodiments, as shown in Figure 8 , the positioning seat 3 is provided with a mounting shaft 32 extending in the horizontal direction, and the mounting shaft 32 is parallel with the rotating shaft of the lever arm 2. The aforementioned monitoring gear 31 is sleeved on the mounting shaft 32, and the positioning seat 3 is further provided with an arc-shaped hole 33 extending around the mounting shaft 32 and coinciding with the side surface of the monitoring gear 31.

[0095] Based on this, the monitoring gear 31 is provided with an indication shaft 311 inserted into the arc-shaped hole 33, and the outer side surface of the positioning seat 3 is provided with a scale mark 34 arranged outside the arc-shaped hole 33 around the mounting shaft 32.

[0096] In actual use, the relative position of the indication shaft 311 and the scale mark 34 can be observed to obtain the rotating angle of the monitoring gear 31.

[0097] In some embodiments, as shown in Figure 2 and Figure 4 , the pile foundation settlement monitoring device further comprises a plurality of reinforcing piles 30.

[0098] A plurality of reinforcing piles 30 are used to fix the ground between the base 1 and the positioning seat 3, and are arranged at intervals along the base 1 towards the positioning seat 3; each reinforcing pile 30 has a round convex portion 301, which is also made of elastic material to avoid interfering with the subsidence of the upper part of the lever arm 2 (due to the subsidence of the base 1).

[0099] In actual use, the round convex portion 301 abuts against the lower side of the lever arm 2 to support the lever arm 2 and reduce the fatigue damage of the lever arm 2 when the pile foundation does not subside.

[0100] The above merely provides a preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. Pile settlement monitoring apparatus, characterised in that, The utility model relates to a kind of monitoring device for pile foundation settlement, including: Base, for fixing on the ground outside pile foundation settlement area;The base has swing piece articulated with it above, and the base has support structure with the swing piece, to make the length direction of the swing piece with up and down direction parallel; Lever arm, rotationally connected on the swing piece, and the both ends of the lever arm are connected with mounting seat and arc rack respectively;Wherein, the distance between the mounting seat and the rotation axis of the lever arm is less than the distance between the arc rack and the rotation axis of the lever arm;And the mounting seat is used to be connected with pile foundation, to make the pile foundation settlement, drive the lever arm rotation;And Positioning seat, for fixing on the ground of the base away from pile foundation settlement area, and the positioning seat has monitoring gear articulated with it, engaged with the arc rack, to make the lever arm rotation, the monitoring gear synchronous rotation; The base has upwardly extending column, and the upper end of the column has first ball piece;The lower end of the swing piece is connected with support disc, the lower side of the support disc has protruding portion, and the extension end surface of the protruding portion has first concave ball groove, and the first ball piece is embedded in the first concave ball groove; Wherein, the first ball piece is made of elastic material, and / or, the protruding portion is made of elastic material;The support structure includes: Rotating disc, coaxially sleeved on the outer periphery of the column, and its transmission is connected with rotation driving component for driving it to rotate;And Two linear cylinders, fixedly arranged on the upper side of the rotating disc, and it is arranged symmetrically with the column as axis; Wherein, the power output shaft of each linear cylinder is parallel to the axial direction of the column, and the power output end of each linear cylinder is connected with the support disc; The swing piece has mounting table and infrared receiving plate spaced apart along its length direction, the mounting table is above the infrared receiving plate, and the mounting table further includes: Second concave ball groove, opened on the side of the mounting table towards the infrared receiving plate; Second ball piece, embedded in the second concave ball groove;And Infrared emitter, arranged between the mounting table and the infrared receiving plate, and it is connected with the second ball piece through a pull rope; Wherein, the infrared receiving plate is provided with multiple indicating portions coaxially arranged, and each indicating portion is annular;When the length direction of the swing piece is parallel to the up and down direction, the pull rope is adapted to be in the sagging state of its length direction parallel to the up and down direction, and the infrared rays of the infrared emitter are projected at the center of the indicating portion.

2. The pile settlement monitoring apparatus of claim 1, wherein The outer peripheral wall of the rotating disc is provided with multiple gear slots spaced apart along its circumferential direction, and the rotating driving component includes: Rotating motor, fixedly arranged on the base, and its power output shaft is parallel to the axial direction of the support disc;And Transmission gear, fixedly connected to the power output end of the rotating motor, and its tooth end is engaged with the gear slot.

3. The pile settlement monitoring apparatus of claim 1, wherein The base is sleeved with protective shell, the protective shell is arranged outside the support disc, and surrounds the swing piece.

4. The pile settlement monitoring apparatus of claim 1, wherein The swing member has a plurality of positioning holes arranged along its length direction, the mounting table has a locating hole communicating with any one of the positioning holes, and the mounting table further comprises: A plug shaft is adapted to be plugged into the positioning hole and the locating hole, one end of the plug shaft has an outwardly extending anti-extraction part, and the other end has an anti-extraction bolt threadedly connected to the end face.

5. The pile settlement monitoring apparatus of claim 1, wherein The arc-shaped rack has an accommodating groove on the side opposite to the monitoring gear, and the arc-shaped rack has a mounting hole penetrating along its thickness direction and communicating with the accommodating groove; The lever arm has a butt joint hole communicating with the mounting hole, and the lever arm further comprises: A connecting bolt is adapted to be plugged into the butt joint hole and the mounting hole; the connecting bolt has a head abutting against the outer side surface of the arc-shaped rack, and the connecting bolt is drivingly connected with a connecting nut adapted to abut against the other side of the arc-shaped rack.

6. The pile settlement monitoring apparatus of claim 1, wherein The mounting seat is hinged to the lever arm, so that when the bottom surface of the mounting seat is connected to the pile foundation, the lever arm is adapted to be obliquely arranged.

7. The pile settlement monitoring apparatus of claim 1, wherein The positioning seat has a mounting shaft, and the monitoring gear is sleeved on the mounting shaft; the positioning seat further has an arc-shaped hole extending around the mounting shaft, and the monitoring gear has an indicating shaft plugged into the arc-shaped hole; The outer side surface of the positioning seat is provided with a scale mark arranged around the mounting shaft and outside the arc-shaped hole.

8. A pile settlement monitoring apparatus as claimed in any one of claims 1 to 7, wherein, The pile foundation settlement monitoring device further comprises: A plurality of reinforcing piles are arranged on the ground between the base and the positioning seat, and are arranged along the direction of the base towards the positioning seat; each of the reinforcing piles has a convex part abutting against the lower side surface of the lever arm to support the lever arm.

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