A bridge pier settlement monitoring device

Abstract

This invention discloses a bridge pier settlement monitoring device, comprising a clamp guide rail, an annular contact rail, and an arc-shaped rail. The clamp guide rail, annular contact rail, and arc-shaped rail are correspondingly arranged. The clamp guide rail is slidably connected to a sliding seat. An inclined rod is provided on one side of the sliding seat, and a bend rod is rotatably connected to the lower end of the inclined rod. Each end of the bend rod is fixedly connected to a measuring device. A driving device is provided at the lower end of the inclined rod, which drives the measuring devices at both ends of the bend rod to measure individually. This invention allows the sliding seat to move on the clamp guide rail. The corresponding measuring device at the lower end of the inclined rod contacts the annular contact rail once, and then contacts the arc-shaped rail, with alternating inner and outer contacts. Since the settlement of the soil and pier changes linearly with the distance from the pier, the arc-shaped rail, farther from the pier, has a lower probability of settlement. Through inner and outer contact, it is convenient to monitor the individual settlement of the pier and the settlement of the pier together with the surrounding soil.

Description

Technical Field

[0001] This invention relates to the field of bridge pier settlement monitoring equipment, and in particular to a bridge pier settlement monitoring device. Background Technology

[0002] After the formwork is removed, the bridge piers will experience longitudinal settlement. Therefore, it is necessary to monitor and report the settlement deformation data of the piers regularly to ensure the stability of the bridge structure and avoid quality problems such as pier cracking or beam damage caused by pier settlement deformation.

[0003] Patent document CN202310339937.0 discloses a bridge pier settlement deformation monitoring device, including a transverse detection clamp, a longitudinal measuring scale, and an auxiliary diagonal brace settlement feedback device. The longitudinal measuring scale is fixedly installed on the side wall of the transverse detection clamp, and the auxiliary diagonal brace settlement feedback device is rotatably installed on the side wall of the transverse detection clamp.

[0004] The installation reference of the monitoring device is too simple and the distance between it and the pier is too close. When the soil on which the reference plate is installed settles together with the pier, the settlement cannot be detected, which leads to the loss of control over the settlement monitoring of the pier. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and to propose a bridge pier settlement monitoring device that facilitates monitoring at different locations of the pier.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A bridge pier settlement monitoring device includes a clamp guide rail, an annular contact rail, and an arc-shaped rail. The clamp guide rail, annular contact rail, and arc-shaped rail are arranged correspondingly. The clamp guide rail is slidably connected to a sliding seat. An inclined rod is provided on one side of the sliding seat. The lower end of the inclined rod is rotatably connected to a bend rod. Each end of the bend rod is fixedly connected to a measuring device.

[0008] The lower end of the inclined rod is equipped with a driving device, which drives the measuring devices at both ends of the angled rod to measure independently.

[0009] Preferably, the measuring device includes a lateral displacement sensor and a longitudinal displacement sensor. The longitudinal displacement sensor is fixedly connected to the bottom side of the angled rod and the probe of the longitudinal displacement sensor is vertically arranged. The lower end of the angled rod has a lateral displacement sensor and the probe of the lateral displacement sensor is horizontally arranged.

[0010] Both the annular contact rail and the arc-shaped rail have trapezoidal cross sections. The lateral displacement sensor corresponds to the waist of the trapezoidal cross section, and the longitudinal displacement sensor corresponds to the top of the trapezoidal cross section.

[0011] Preferably, the annular contact rail and the arc-shaped rail are respectively fixedly connected to the pad plate, and an anchor rod is fixedly connected to each of the four corners of the pad plate.

[0012] Preferably, the driving device includes a circular box body, which is installed at the lower end of the inclined rod. A gear is rotatably connected inside the box body. A clutch is installed between the gear and the rotating shaft of the angled rod. A first protrusion is fixedly connected to the outer side of the annular contact rail at intervals. A push rod is slidably connected inside the box body. The push rod is provided with a tooth groove and meshes with the gear through the tooth groove. A roller is rotatably connected to the lower end of the push rod. The push rod is provided with a boss. A support spring is fixedly connected between the boss and the box body. The roller rolls on the outer side of the annular contact rail and can roll onto the first protrusion.

[0013] Preferably, the box body is rotatably connected to the lower side of the inclined rod, rollers are provided at both ends of the push rod, and the inner side of the arc-shaped rail is fixedly connected to the second protrusion at intervals, so that the roller at one end of the push rod can roll onto the second protrusion;

[0014] The outer side of the box is equipped with a limiting component, which fixes the box again after the box rotates. The rotation of the box causes one end of the push rod to press against the annular contact rail or the other end of the push rod to press against the arc-shaped rail.

[0015] Preferably, the limiting component includes two side plates, which are fixedly connected to the outer circular surface of the box body. The side plates are provided with sliding holes, and pins are slidably connected in the sliding holes. The lower side of the inclined rod is provided with a pin hole, and the pin is adapted to the pin hole.

[0016] The advantages of this invention are as follows: The bridge pier settlement monitoring device provided by this invention moves its position on the clamp guide rail via a sliding seat. The measuring device at the lower end of the corresponding inclined rod contacts the annular contact rail once, and then contacts the arc-shaped rail. The inner and outer contacts are alternated. Since the settlement of the soil and the pier changes linearly with the distance from the pier, the arc-shaped rail far from the pier has a low probability of settlement. Through the contact of the inner and outer sides, it is convenient to monitor the settlement of the pier alone and the settlement of the pier together with the surrounding soil.

[0017] Meanwhile, the multiple and dispersed arc-shaped rails make it less likely that all arc-shaped rails will have the same degree of settlement. Furthermore, the distance between the pier tilt and different arc-shaped rails will also change accordingly. Therefore, after measuring the arc-shaped rails at different locations, the measuring device can determine the settlement amplitude, tilt direction and degree of the pier, which facilitates timely and targeted reinforcement and treatment.

[0018] This invention achieves the swinging action of the angled rod by having the roller at the end of the push rod roll onto the first protrusion on the outer side of the annular contact rail. Using only the annular contact rail as the sole reference is prone to failure due to settlement of the annular contact rail, thus preventing the swinging function from being realized. On one hand, by rotating the housing, the roller at the other end of the push rod uses the same principle, relying on the arc-shaped rail to push the angled rod, resulting in a more varied measurement method. On the other hand, the overall contact of the annular contact rail with the dispersed contact of multiple arc-shaped rails allows for comprehensive measurement of the settlement and tilt of the pier column, as the measured values ​​displayed by the lateral and longitudinal displacement sensors deviate from the initial values ​​when in contact with the annular and arc-shaped rails. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the basic structure of the present invention;

[0020] Figure 2 yes Figure 1 Enlarged view of section E in the image;

[0021] Figure 3 yes Figure 1 Enlarged view of section F in the image;

[0022] Figure 4 This is a schematic diagram of the connection structure between the drive device and the inclined rod of the present invention;

[0023] Figure 5 This is a schematic diagram of the connection structure between the angled bar and the diagonal bar of the present invention;

[0024] Figure 6 This is a schematic diagram of the separate structure of the angle rod shaft and gear of the present invention. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0026] like Figure 1-6As shown, the present invention provides a bridge pier settlement monitoring device, including a clamp guide rail 1, an annular contact rail 2, and an arc-shaped rail 3. The clamp guide rail 1, annular contact rail 2, and arc-shaped rail 3 are arranged correspondingly. The cross-section of the clamp guide rail 1 is T-shaped or dovetail-shaped. The clamp guide rail 1 is assembled from several segments, forming a circle or "ring track" shape. The specific structure is designed to match the cross-section of the pier, encircling the pier. The clamp guide rail 1 is slidably connected to a sliding seat 4. The sliding seat 4 is slidable by hand or by installing a motor on the sliding seat 4. A tire is installed on the motor shaft. The tire travels on the side of the pier or the clamp guide rail 1, so that the sliding seat 4 can move along the clamp guide rail 1 around the pier. A diagonal rod 5 is provided on one side of the sliding seat 4. The lower end of the diagonal rod 5 is rotatably connected to a bend rod 6. Each end of the bend rod 6 is fixedly connected to a measuring device.

[0027] The lower end of the diagonal bar 5 is equipped with a driving device 8, which drives the measuring devices at both ends of the angle bar 6 to measure independently.

[0028] One end of the curved rail 3 is equipped with a dovetail insert, and the other end is equipped with a dovetail slot. Adjacent curved rails 3 are assembled through connecting sections to form a complete installation circle. This facilitates the installation of each curved rail 3 based on the pier column as a reference. After installation, the connecting sections are removed, leaving gaps between adjacent curved rails 3. This allows the measuring device at the lower end of the inclined rod 5 to smoothly transition to the surface of the adjacent curved rail 3 during the annular detection of the sliding seat 4. When the soil settlement is uneven in a local location, the different curved rails 3 are affected differently by the soil settlement, thus allowing for the measurement of the pier column's settlement status in different directions. Moreover, since the curved rails 3 are far from the pier column, the soil is more stable and less prone to settlement compared to the annular contact rail 2. Even if some curved rails 3 settle with the soil, the other curved rails 3 can still provide a reliable measurement reference, making it suitable for settlement monitoring in geological environments where the soil settles unevenly along with the pier column.

[0029] Furthermore, the inclined rod 5 is hinged to the sliding seat 4, the bottom of the clamp guide rail 1 is fixedly connected to the annular bracket 51, the bottom of the upper end of the inclined rod is rotatably connected to the support wheel 52, the upper side of the annular bracket 51 is fixedly connected to the inclined block 53 corresponding to the arc rail 3, and the support wheel 52 can roll from the upper side of the annular bracket 51 to the upper side of the inclined block 53; after the support wheel 52 rolls to the upper side of the inclined block 53, the corresponding measuring device then reaches the upper side of the arc rail 3, avoiding uneven settlement that would cause the measuring device to be lower than the height of the arc rail 3 and cause it to collide with the side of the arc rail 3. Subsequently, the support wheel 52 returns from the inclined block 53 to the upper side of the annular bracket 51, and under the action of gravity, the measuring device re-contacts the arc rail 3 for detection, thereby ensuring the safety of the detection process.

[0030] This invention moves the sliding seat 4 on the clamp guide rail 1. The measuring device at the lower end of the corresponding inclined rod 5 contacts the annular contact rail 2 once, and then contacts the arc-shaped rail 3. The inner and outer contacts are alternated. Since the settlement of the soil and the pier changes linearly with the distance from the pier, the arc-shaped rail 3, which is far from the pier, has a low probability of settlement. Through the contact of the inner and outer sides, it is convenient to monitor the settlement of the pier alone and the settlement of the pier together with the surrounding soil.

[0031] Meanwhile, multiple curved rails 3 are set up and dispersed, which makes it difficult for all curved rails 3 to have the same degree of settlement. The distance between the pier tilt and different curved rails 3 will also change accordingly. Therefore, after the measuring device measures the curved rails 3 at different positions, it can determine the settlement amplitude, tilt direction and degree of the pier, which facilitates timely and targeted reinforcement and treatment.

[0032] As one embodiment of the present invention, the measuring device includes a lateral displacement sensor 71 and a longitudinal displacement sensor 72. The longitudinal displacement sensor 72 is fixedly connected to the bottom side of the angled rod 6 and the probe of the longitudinal displacement sensor 72 is vertically arranged. The lower end of the angled rod 6 has a lateral displacement sensor 71 and the probe of the lateral displacement sensor 71 is horizontally arranged.

[0033] Both the annular contact rail 2 and the arc-shaped rail 3 have trapezoidal cross sections. The lateral displacement sensor 71 is in contact with the waist of the trapezoidal cross section, and the longitudinal displacement sensor 72 is in contact with the top of the trapezoidal cross section.

[0034] The detection rods of the lateral displacement sensor 71 and the longitudinal displacement sensor 72, during the rotation of the angled rod 6, rest against the annular contact rail 2 or the arc-shaped rail 3, as... Figure 2 As shown, it can gradually approach the top or side surface, making it easy to contact and measure, and preventing the probe from being tilted by collision.

[0035] In one embodiment of the present invention, the annular contact rail 2 and the arc-shaped rail 3 are respectively fixedly connected to the pad 21, and an anchor rod 22 is fixedly connected to each of the four corners of the pad 21, for anchoring the annular contact rail 2 and the arc-shaped rail 3 to the ground.

[0036] In one embodiment of the present invention, the driving device 8 includes a circular box 81, which is rotatably mounted on the lower end of the inclined rod 5 and coaxial with the rotating shaft of the angled rod 6. A gear 82 is rotatably connected inside the box 81, and a clutch (such as a clutch) is installed between the gear 82 and the rotating shaft of the angled rod 6. Figure 6The clutch is an existing technology used for synchronizing or separating two shaft drives. For example, the rotating shaft of the angle lever 6 passes through a splined rod 821, and the shaft of the gear 82 is sleeved on the rotating shaft of the angle lever 6 through a bearing. The shaft of the gear 82 is provided with a splined hole 822. When the gear 82 and the housing 81 need to rotate independently, the splined rod 821 is pulled out and disengaged from the splined hole 822, thus realizing the disconnection between the gear 82 and the rotating shaft of the angle lever 6, which facilitates the independent rotation of the housing 81, thereby realizing the switching between the two states.

[0037] The two specific states are: The first state is as follows: Figure 2 In the state shown, push rod 84 drives gear 82 to rotate, which in turn drives angle rod 6 to rotate, thus realizing the measurement function of angle rod 6;

[0038] When switching to the second state is required, the push rod 84 needs to rotate with the housing 81 by an appropriate angle between 70-120° (determined by the installation position of the arc-shaped rail 3), so that... Figure 2 The upward-facing end of the push rod 84 rotates down to correspond with the arc-shaped rail 3. At this point, it is necessary to disconnect the connection between the gear 82 in the housing 81 and the rotating shaft of the angle rod 6 before the direction of the push rod 84 can be changed independently. By changing the pushing reference of the push rod 84 (switching between the annular contact rail 2 and the arc-shaped rail 3), the settlement of the annular contact rail 2 or the arc-shaped rail 3 can be avoided, which would cause the reference to become inaccurate and thus improve stability.

[0039] The outer side of the annular contact rail 2 is fixedly connected to the first protrusion 83 at intervals. The push rod 84 is slidably connected inside the box body 81. The push rod 84 is provided with a toothed groove 85. The push rod 84 meshes with the gear 82 through the toothed groove 85. The lower end of the push rod 84 is rotatably connected to the roller 86. The push rod 84 is provided with a boss 87. The boss 87 and the box body 81 are fixedly connected to the support spring 88. The roller 86 rolls on the outer side of the annular contact rail 2 and can roll onto the first protrusion 83.

[0040] The present invention uses a sliding seat 4 to move along the clamp guide rail 1, and the lower end of the inclined rod 5 on one side of the sliding seat 4, the angled rod 6, swings periodically. Measurement is performed through the contact between the annular contact rail 2 and the arc rail 3, which makes it easy to find the settlement or tilt direction of the pier column.

[0041] The periodic rotation of the angle rod 6 is achieved by the roller 86 at the end of the push rod 84 on the outer side of the annular contact rail 2, and the roller 86 can roll onto the first protrusion 83. Combined with the elastic force of the support spring 88, the push rod 84 forms a periodic motion relative to the box 81. The push rod 84 drives the angle rod 6 to swing forward and then reverse through the tooth groove 85, without the need for an additional power device. Furthermore, the push rod 84 and the roller 86 also provide support, allowing the lateral displacement sensor 71 and the longitudinal displacement sensor 72 to perform monitoring and measurement within the range controlled by the push rod 84. This avoids the situation where the lateral displacement sensor 71 and the longitudinal displacement sensor 72 are directly used as supports, which could easily damage the measuring device and affect the monitoring and measurement data.

[0042] As one embodiment of the present invention, the box body 81 is rotatably connected to the lower side of the inclined rod 5, and rollers 86 are provided at both ends of the push rod 84. The inner side of the arc-shaped rail 3 is fixedly connected to the second protrusion 89 at intervals, and the roller 86 at one end of the push rod 84 can roll onto the second protrusion 89.

[0043] Furthermore, a limiting member is provided on the outside of the box body 81. The limiting member fixes the box body 81 again after the box body 81 rotates. The rotation of the box body 81 causes one end roller 86 of the push rod 84 to press against the annular contact rail 2 or the other end roller 86 to press against the arc-shaped rail 3.

[0044] Furthermore, the limiting component includes two side plates 91, which are fixedly connected to the outer circular surface of the box body 81. The side plates 91 are provided with sliding holes, and pins 92 are slidably connected in the sliding holes. The lower side of the inclined rod 5 is provided with pin holes 93. The pins 92 are adapted to the pin holes 93. After the pins 92 are pulled out of the pin holes 93, the box body 81 is rotated so that the sliding holes of the other side plates 91 are aligned with the pin holes 93. Then the pins 92 are reinserted to form a limiting position, so that the roller 86 at the other end of the push rod 84 acts on the arc-shaped rail 3.

[0045] This invention achieves the swinging action of the angled rod 6 by having the roller 86 at the end of the push rod 84 roll onto the first protrusion 83 on the outer side of the annular contact rail 2. However, using the annular contact rail 2 as the sole reference is prone to failure due to settlement of the annular contact rail 2, which would prevent the swinging function from being realized. On the one hand, by rotating the housing 81, the roller 86 at the other end of the push rod 84 uses the same principle, relying on the arc-shaped rail 3 to push the angled rod 6, resulting in a variety of measurement methods. On the other hand, the overall contact of the annular contact rail 2 with the dispersed contact of multiple arc-shaped rails 3 means that when the transverse displacement sensor 71 and the longitudinal displacement sensor 72 contact the annular contact rail 2 and the arc-shaped rails 3, the measured values ​​displayed may deviate from the initial values, facilitating comprehensive measurement of the settlement and tilt of the pier.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bridge pier settlement monitoring device, comprising a clamp guide rail (1), an annular contact rail (2), and an arc-shaped rail (3), wherein the clamp guide rail (1), the annular contact rail (2), and the arc-shaped rail (3) are correspondingly arranged, the clamp guide rail (1) is slidably connected to a sliding seat (4), and a diagonal rod (5) is provided on one side of the sliding seat (4), characterized in that: The lower end of the inclined rod (5) is rotatably connected to the angle rod (6), and each end of the angle rod (6) is fixedly connected to the measuring device. The lower end of the inclined bar (5) is provided with a driving device (8), which drives the measuring devices at both ends of the angle bar (6) to measure separately; The measuring device includes a lateral displacement sensor (71) and a longitudinal displacement sensor (72). The longitudinal displacement sensor (72) is fixedly connected to the bottom side of the angled rod (6) and the probe of the longitudinal displacement sensor (72) is set vertically. The lower end of the angled rod (6) has a lateral displacement sensor (71) and the probe of the lateral displacement sensor (71) is set horizontally. The cross-sections of the annular contact rail (2) and the arc rail (3) are both trapezoidal sections. The lateral displacement sensor (71) corresponds to the waist of the contact trapezoidal section, and the longitudinal displacement sensor (72) corresponds to the top of the contact trapezoidal section. The drive device (8) includes a circular box (81), which is installed at the lower end of the inclined rod (5). A gear (82) is rotatably connected inside the box (81). A clutch is installed between the gear (82) and the rotating shaft of the angled rod (6). The outer side of the annular contact rail (2) is fixedly connected to the first protrusion (83) at intervals. A push rod (84) is slidably connected inside the box (81). The push rod (84) is provided with a tooth groove (85). The push rod (84) meshes with the gear (82) through the tooth groove (85). The lower end of the push rod (84) is rotatably connected to a roller (86). The push rod (84) is provided with a boss (87). A support spring (88) is fixedly connected between the boss (87) and the box (81). The roller (86) rolls on the outer side of the annular contact rail (2) and can roll onto the first protrusion (83).

2. The bridge pier settlement monitoring device according to claim 1, characterized in that: The annular contact rail (2) and the arc rail (3) are respectively fixedly connected to the pad (21), and an anchor rod (22) is fixedly connected to each of the four corners of the pad (21).

3. A bridge pier settlement monitoring device according to claim 1, characterized in that: The box body (81) is rotatably connected to the lower side of the inclined rod (5). Rollers (86) are provided at both ends of the push rod (84). The inner side of the arc rail (3) is fixedly connected to the second protrusion (89) at intervals. The roller (86) at one end of the push rod (84) can roll onto the second protrusion (89). The outer side of the box (81) is provided with a limiting member. After the box (81) rotates, the limiting member fixes the box (81) again. The rotation of the box (81) causes one end of the push rod (84) roller (86) to press against the annular contact rail (2) or the other end of the roller (86) to press against the arc rail (3).

4. The bridge pier settlement monitoring device according to claim 3, characterized in that: The limiting component includes two side plates (91), which are fixedly connected to the outer circular surface of the box body (81). The side plates (91) are provided with sliding holes, and pins (92) are slidably connected in the sliding holes. The lower side of the inclined rod (5) is provided with pin holes (93), and the pins (92) and pin holes (93) are adapted to each other.

Images