Device for detecting scouring of bridge foundation

By designing detection mechanisms one and two, using racks and limit rods to stabilize the position of the marking blocks, and combining pressure sensors to detect bridge foundation scour, the problem of incomplete observation by floats was solved, achieving accuracy and comprehensiveness in bridge foundation scour detection.

CN223675401UActive Publication Date: 2025-12-16CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Patent Information

Application Number
CN202423155044.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-12-16
Estimated Expiration
2034-12-20

AI Technical Summary

Technical Problem

Existing bridge foundation scour detection devices are susceptible to interference between the connecting rope and the buoy in turbulent river water or in the presence of underwater organisms, leading to incomplete buoy observation and detection errors.

Method used

The system employs two detection mechanisms, including components such as a cylinder, telescopic rod, detection head, rope, and marking block. The marking block is stabilized by a rack and pinion mechanism and a limiting rod, and pressure sensors are used to detect the scouring of the bridge foundation.

Benefits of technology

It reduces the impact of underwater conditions on test results, improves the accuracy and comprehensiveness of test results, reduces errors, and provides scientific data on bridge foundation scour.

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Abstract

The utility model relates to the technical field of bridge engineering measurement, in particular to a device for detecting scouring of a bridge foundation, which comprises a foundation structure, and a first detection mechanism and a second detection mechanism are arranged on the inner side of the foundation structure. The first detection mechanism comprises a cylinder, a first telescopic rod, a detection head, a second telescopic rod, a lantern ring, a rope sleeve, a rope, a rack, a marking block, a mounting frame, limiting teeth, a limiting rod, a first spring and a connecting rod. Through the arrangement of the first detection mechanism, when a riverbed foundation is scoured during use, a detection head moves downwards, so that a second telescopic rod, a connecting rod, a first telescopic rod and a rope are pulled to move downwards, a rack is made to move downwards, a marking block is driven to move, and a worker can judge the state of the marking block, so that the working efficiency is improved. And then the scouring condition of the riverbed foundation is detected and judged.
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Description

TECHNICAL FIELD

[0001] The utility model relates to bridge engineering measurement technical field especially, a device for bridge foundation scouring detection. BACKGROUND

[0002] In bridge engineering, the infrastructure of bridge is the key link to ensure the stability and durability of bridge structure. The traditional bridge infrastructure technology, such as pile foundation, enlarged foundation, etc., although shows certain advantages in meeting certain use requirements, but at the same time, there are many problems and limitations.

[0003] At present, through the retrieval, the patent number CN202121102952.6 discloses a device for bridge foundation scouring detection, which comprises a plurality of detection holes, which are uniformly distributed on the periphery of the bridge foundation and form a hollow matrix structure, any detection hole is vertically downwardly arranged with the riverbed surface as the top surface; a plurality of groups of floating balls are arranged along the height direction of the detection holes, any group of floating balls comprises a plurality of floating balls corresponding to the plurality of detection holes, any floating ball is arranged in the corresponding detection hole and connected with the bridge foundation through a connecting rope, the floating ball and the detection hole are filled with gravel, the floating balls of different groups are different in color, and the floating balls of the same group are the same in color and located at the same height position; wherein, when the scouring depth is greater than the height of the floating ball, the floating ball floats to the water surface and is located directly above the corresponding detection hole.

[0004] However, the above-mentioned comparative document still has the following problems, although the gravel can be used to bury the floating balls of different colors at different depths of the layer, when the bridge foundation is scoured to the corresponding elevation of the floating ball, the floating ball floats to the water surface by using its own buoyancy, the inspector can conveniently and quickly judge the current scouring depth and scouring topography by the color of the floating ball in real time, but when the river water is turbulent or there are organisms under the water, the connection between the connecting rope and the floating ball is easily affected, at the same time, the unknown conditions in the water can also block the floating of the floating ball, so that the observation of the floating ball by the staff is not comprehensive, and detection errors are easily caused. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the defects of the prior art, and provides a device for bridge foundation scouring detection, so as to solve the technical problem that the comparative document still has the following problems, although the gravel can be used to bury the floating balls of different colors at different depths of the layer, when the bridge foundation is scoured to the corresponding elevation of the floating ball, the floating ball floats to the water surface by using its own buoyancy, the inspector can conveniently and quickly judge the current scouring depth and scouring topography by the color of the floating ball in real time, but when the river water is turbulent or there are organisms under the water, the connection between the connecting rope and the floating ball is easily affected, at the same time, the unknown conditions in the water can also block the floating of the floating ball, so that the observation of the floating ball by the staff is not comprehensive, and detection errors are easily caused.

[0006] To solve the above technical problems, the utility model discloses the following technical scheme:

[0007] A device for bridge foundation scouring detection, it is inside setting with detection mechanism one and detection mechanism two to foundation structure,

[0008] Detection mechanism one includes cylinder, telescopic link one, detection head, telescopic link two, eyelet, rope sleeve, rope cable, rack, mark block, mounting frame, limit tooth, limit rod, spring one and connecting rod, and one end of telescopic link one and telescopic link two is respectively inserted to the top and bottom inside of cylinder, the connecting rod is fixedly connected with telescopic link one and telescopic link two respectively, the detection head is fixedly installed at the bottom end of telescopic link one, the top end of telescopic link two is fixedly connected with eyelet, the rope sleeve is wound and arranged on the outside of eyelet, one end of rope cable is fixedly connected with rope sleeve, the other end of rope cable is fixedly connected with the bottom end of rack, the mark block is fixedly installed at the top end of rack, the limit rod is inserted to the inside of one side wall of mounting frame, one end of limit rod is fixedly connected with limit tooth, spring one is movably sleeved on the outside of limit rod, and limit tooth is engaged with rack.

[0009] Further, the foundation structure includes riverbed foundation, bridge foundation, fixed ring one and fixed ring two, the riverbed foundation is arranged at the bottom of river channel, the bridge foundation is fixedly installed at the top of riverbed foundation, and the bottom end of detection head is limitedly inserted into the inside of riverbed foundation.

[0010] Further, the fixed ring one and fixed ring two are fixedly sleeved on the outside of bridge foundation, and the fixed ring one is located above the fixed ring two, one end of spring two is clamped with mounting frame, the other end of spring two is clamped with limit tooth, and the mounting frame is fixedly installed on the outer wall of bridge foundation.

[0011] Further, the detection mechanism two includes mounting plate, fixed frame, detection column, round plate, contact plate, spring two and pressure sensor, the fixed frame is fixedly installed on one side outer wall of mounting plate, the detection column is movably inserted into the inside of fixed frame, one end of detection column is fixedly connected with contact plate, and the other end of detection column is in contact with the pressure sensor embedded in the inside of one side wall of mounting plate.

[0012] Further, spring two is movably sleeved on the outside of detection column, and round plate is fixedly sleeved on the outside of detection column, spring two is located in the inside of fixed frame and round plate, and contact plate is in contact with bridge foundation.

[0013] Further, the cylinder is fixedly installed inside the fixed ring one and the fixed ring two, the top and bottom of the mounting plate are fixedly connected with the fixed ring one and the fixed ring two respectively, the detection mechanism one and the detection mechanism two are uniformly arrayed in a circumferential shape with the vertical center line of the bridge foundation as the center, and the detection mechanism one and the detection mechanism two are spaced apart.

[0014] The bridge foundation scouring detection device has the advantages that:

[0015] The detection mechanism one is arranged, when the riverbed foundation is scoured, the detection head moves downward, thereby pulling the telescopic rod two, the connecting rod, the telescopic rod one and the cable downward, the rack moves downward, thereby driving the marking block to move, the state of the marking block can be judged by the worker, the scouring condition of the riverbed foundation can be detected and judged, the rack and the limiting tooth are clamped, the limiting rod and the spring one are matched, the rack rebound can be prevented, the position of the marking block after moving is more stable, the data of the scouring condition of the foundation structure at different depth positions can be obtained, the depth and range of the bridge foundation scouring can be comprehensively understood, a scientific basis for bridge maintenance is provided, compared with the prior file, the influence of the water condition on the detection result is greatly reduced, the error is greatly reduced, and the detection result is more accurate. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0017] Figure 1 It is a three-dimensional structure schematic view of the device for bridge foundation scouring detection embodiment;

[0018] Figure 2 It is a detection mechanism one three-dimensional schematic view of the device for bridge foundation scouring detection embodiment;

[0019] Figure 3 It is an installation frame internal structure schematic view of the device for bridge foundation scouring detection embodiment;

[0020] Figure 4 It is a detection mechanism two three-dimensional schematic view of the device for bridge foundation scouring detection embodiment;

[0021] Figure 5 It is a detection mechanism two side view three-dimensional schematic view of the device for bridge foundation scouring detection embodiment;

[0022] Figure 6Fig. 1 is a perspective view of a base structure of an embodiment of the device for bridge foundation scour detection;

[0023] Figure 7 Fig. 2 is a perspective view of an internal structure of a cylinder of an embodiment of the device for bridge foundation scour detection.

[0024] Fig. 1 is a perspective view of a base structure of an embodiment of the device for bridge foundation scour detection; DETAILED DESCRIPTION

[0025] The above description is only specific embodiments of the present application. It should be pointed out that the specific embodiments described above are only a part of the embodiments of the present application, and are not all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Figures 1-7 It should be understood that the terms "include" and "contain" as used in the specification and the appended claims indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0026] It should be understood that the terms "include" and "contain" as used in the specification and the appended claims indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0027] It should be understood that the terms "include" and "contain" as used in the specification and the appended claims indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0028] It should be further understood that the term "and / or" as used in the specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0029] Please refer to Figures 1-7As shown, a device for bridge foundation scouring detection, comprising: a foundation structure 1, the inner side of the foundation structure 1 is provided with a detection mechanism one 2 and a detection mechanism two 3;

[0030] The detection mechanism one 2 comprises a cylinder 21, a telescopic rod one 22, a detection head 23, a telescopic rod two 24, a thimble 25, a rope sleeve 26, a rope cable 27, a rack 28, a marking block 29, an installation frame 20, a limiting tooth 210, a limiting rod 211, a spring one 212 and a connecting rod 213, one end of the telescopic rod one 22 and the telescopic rod two 24 are movably inserted into the top and bottom inner side of the cylinder 21 respectively, the connecting rod 213 is fixedly connected with the telescopic rod one 22 and the telescopic rod two 24 respectively, the detection head 23 is fixedly installed at the bottom end of the telescopic rod one 22, the top end of the telescopic rod two 24 is fixedly connected with the thimble 25, the rope sleeve 26 is wound on the outer side of the thimble 25, one end of the rope cable 27 is fixedly connected with the rope sleeve 26, the other end of the rope cable 27 is fixedly connected with the bottom end of the rack 28, the marking block 29 is fixedly installed at the top end of the rack 28, the limiting rod 211 is movably inserted into one side wall of the installation frame 20, one end of the limiting rod 211 is fixedly connected with the limiting tooth 210, the spring one 212 is movably sleeved on the outside of the limiting rod 211, and the limiting tooth 210 is engagedly connected with the rack 28.

[0031] Specifically, by being provided with the detection mechanism one 2, when the riverbed foundation 11 is scoured, the detection head 23 moves downward, thereby pulling the telescopic rod two 24, the connecting rod 213, the telescopic rod one 22 and the rope cable 27 to move downward, thereby making the rack 28 move downward, so as to drive the marking block 29 to move, and the staff can detect and judge the scouring condition of the riverbed foundation 11 by judging the state of the marking block, meanwhile, the rack 28 and the limiting tooth 210 are connected, and the limiting rod 211 and the spring one 212 are matched, so as to prevent the rack 28 from rebounding, and make the position of the marking block 29 after moving more stable, thereby facilitating the acquisition of the scouring condition data of the foundation structure 1 at different depth positions, so as to comprehensively understand the depth and range of the scouring of the bridge foundation 12, and provide a scientific basis for bridge maintenance, and compared with the prior art, the influence of the water condition on the detection result is greatly reduced, the error is greatly reduced, and the detection result is more accurate.

[0032] In the embodiment, the foundation structure 1 comprises a riverbed foundation 11, a bridge foundation 12, a fixed ring one 13 and a fixed ring two 14, the riverbed foundation 11 is arranged at the bottom of the river channel, the bridge foundation 12 is fixedly installed at the top of the riverbed foundation 1, the bottom end of the detection head 23 is limitingly inserted into the inside of the riverbed foundation 11, the fixed ring one 13 and the fixed ring two 14 are both fixedly sleeved on the outside of the bridge foundation 12, and the fixed ring one 13 is located above the fixed ring two 14, one end of the spring two 36 is connected with the installation frame 20, the other end of the spring two 36 is connected with the limiting tooth 210, and the installation frame 20 is fixedly installed on the outer wall of the bridge foundation 12.

[0033] Specifically, the fixed ring one 13 and the fixed ring two 14 are adopted to facilitate the fixed installation of the detection mechanism one 2 and the detection mechanism two 3, and the spring two 36 is adopted to further make.

[0034] The detection mechanism two 3 comprises a mounting plate 31, a fixed frame 32, a detection column 33, a circular plate 34, a contact plate 35, a spring two 36 and a pressure sensor 37, the fixed frame 32 is fixedly installed on one side outer wall of the mounting plate 31, the detection column 33 is movably inserted into the inner side of the fixed frame 32, one end of the detection column 33 is fixedly connected with the contact plate 35, the other end of the detection column 33 is in contact with the pressure sensor 37 which is embedded in the inner side wall of the mounting plate 31, the spring two 36 is movably sleeved on the outer side of the detection column 33, the circular plate 34 is fixedly sleeved on the outer side of the detection column 33, the spring two 36 is located on the inner side of the fixed frame 32 and the circular plate 34, and the contact plate 35 is in contact with the bridge foundation 12.

[0035] Specifically, when the bridge foundation 12 is damaged by scouring, the contact plate 35 will move, the detection column 33 will move, and the vertical position of the pressure sensor 37 will change, so that the scouring condition of the bridge foundation 12 can be judged and detected, the pressure sensor 37 is connected with a power supply and a signal transceiver, and the signal transceiver is wirelessly connected with a control terminal.

[0036] The cylinder 21 is fixedly installed in the fixed ring one 13 and the fixed ring two 14, the top and the bottom of the mounting plate 31 are fixedly connected with the fixed ring one 13 and the fixed ring two 14 respectively, the detection mechanism one 2 and the detection mechanism two 3 are uniformly and circularly distributed around the vertical center line of the bridge foundation 12, and the detection mechanism one 2 and the detection mechanism two 3 are distributed at intervals.

[0037] Specifically, the detection mechanism one 2 and the detection mechanism two 3 are uniformly and circularly distributed, so that the detection range of the bridge foundation 12 and the riverbed foundation 11 is wider, the detection is more comprehensive, the omission error is avoided, the comprehensiveness and accuracy of the data are improved, and the staff can better judge the scouring damage of the foundation structure 1.

[0038] Compared with the prior art, the bridge foundation scouring detection device has at least the following beneficial effects: the foundation structure 1 comprises a riverbed foundation 11, a bridge foundation 12, a fixed ring one 13 and a fixed ring two 14, the riverbed foundation 11 is arranged at the bottom of a river channel, the bridge foundation 12 is fixedly installed at the top of the riverbed foundation, the bottom end of the detection head 23 is limitedly inserted into the inside of the riverbed foundation 11, the fixed ring one 13 and the fixed ring two 14 are both fixedly sleeved outside the bridge foundation 12, the fixed ring one 13 is located above the fixed ring two 14, one end of the spring two 36 is clamped with the mounting frame 20, the other end of the spring two 36 is clamped with the limiting tooth 210, and the mounting frame 20 is fixedly installed on the outer wall of the bridge foundation 12.

[0039] The above merely describes the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An apparatus for bridge foundation scour detection, characterized in that, Include: Infrastructure (1), The inner side of the infrastructure (1) is provided with detection mechanism one (2) and detection mechanism two (3); The detection mechanism one (2) includes cylinder (21), telescopic rod one (22), detection head (23), telescopic rod two (24), collar (25), rope sleeve (26), rope cable (27), rack (28), label block (29), installation frame (20), limit tooth (210), limit rod (211), spring one (212) and connecting rod (213), one end of telescopic rod one (22) and telescopic rod two (24) is respectively movably inserted into the top and bottom inside of cylinder (21), connecting rod (213) is respectively fixedly connected with telescopic rod one (22) and telescopic rod two (24), detection head (23) is fixedly installed at the bottom end of telescopic rod one (22), the top end of telescopic rod two (24) is fixedly connected with collar (25), rope sleeve (26) is wound on the outside of collar (25), one end of rope cable (27) is fixedly connected with rope sleeve (26), the other end of rope cable (27) is fixedly connected with the bottom end of rack (28), label block (29) is fixedly installed at the top end of rack (28), limit rod (211) is movably inserted into one side wall inside of installation frame (20), one end of limit rod (211) is fixedly connected with limit tooth (210), spring one (212) is movably sleeved on the outside of limit rod (211), limit tooth (210) is engaged with rack (28).

2. A device for scour detection of bridge foundations according to claim 1, characterized in that, The infrastructure (1) includes riverbed foundation (11), bridge foundation (12), fixed ring one (13) and fixed ring two (14), the riverbed foundation (11) is arranged at the bottom of the river, the bridge foundation (12) is fixedly installed on the top of the riverbed foundation (11), the bottom end of the detection head (23) is limitingly inserted into the inside of the riverbed foundation (11).

3. A device for scour detection of bridge foundations according to claim 2, characterized in that, The detection mechanism two (3) includes installation plate (31), fixed frame (32), detection column (33), circular plate (34), contact plate (35), spring two (36) and pressure sensor (37), the fixed ring one (13) and the fixed ring two (14) are fixedly sleeved on the outside of the bridge foundation (12), and the fixed ring one (13) is located above the fixed ring two (14), one end of the spring two (36) is clamped with the installation frame (20), the other end of the spring two (36) is clamped with the limit tooth (210), and the installation frame (20) is fixedly installed on the outer wall of the bridge foundation (12).

4. A device for scour detection of bridge foundations according to claim 3, characterized in that, The fixed frame (32) is fixedly installed on one side of the outer wall of the installation plate (31), the detection column (33) is movably inserted into the inner side of the fixed frame (32), one end of the detection column (33) is fixedly connected with the contact plate (35), and the other end of the detection column (33) is in contact with the pressure sensor (37) embedded in the inner side of the installation plate (31).

5. A device for scour detection of bridge foundations according to claim 4, characterized in that, The spring two (36) is movably sleeved outside the detection column (33), the circular plate (34) is fixedly sleeved outside the detection column (33), the spring two (36) is located inside the fixed frame (32) and the circular plate (34), and the contact plate (35) is in contact with the bridge foundation (12).

6. A device for scour detection of bridge foundations according to claim 4, characterized in that, The cylinder (21) is fixedly installed inside the fixed ring one (13) and the fixed ring two (14), the top and the bottom of the mounting plate (31) are fixedly connected with the fixed ring one (13) and the fixed ring two (14) respectively, the detection mechanism one (2) and the detection mechanism two (3) are uniformly and circularly distributed with the vertical center line of the bridge foundation (12) as the center, and the detection mechanism one (2) and the detection mechanism two (3) are distributed at intervals.

Citation Information

Patent Citations

  • Device for detecting scouring of bridge foundation

    CN214574200U