A bridge beam and slab displacement monitoring device

Abstract

The present invention discloses a bridge beam and slab displacement monitoring device, which belongs to the field of bridge detection technology. The device comprises a base and a detection plate. The base is provided with a horizontal monitoring mechanism and an offset monitoring mechanism, and the detection plate is provided with a connecting mechanism. The horizontal monitoring mechanism comprises a sleeve 1 provided at the center of the base, and four groups of pistons 2 are evenly distributed on one side wall of the sleeve. The present invention, through the cross-shaped design of sleeve 1 and piston 2, monitors the horizontal displacement distance as the beam and slab move, and simultaneously monitors the vertical settlement and tilt of the beam and slab in conjunction with the lifting and lowering of piston 1, thereby achieving real-time monitoring of the horizontal and vertical movement or tilt of the beam and slab by the same group of structures. The whole can be observed centrally through the detection plate, and the detection results are amplified and reflected by the superposition of liquid paths and the difference in the cross-sectional area of ​​the hydraulic transmission, which helps to improve the observation efficiency and increase the accuracy of the detection.

Description

Technical Field

[0001] The present invention relates to the technical field of bridge detection, and in particular to a bridge beam and slab displacement monitoring device. Background Art

[0002] A bridge is generally composed of an upper structure, a lower structure, supports and ancillary structures. The upper structure, also known as the span structure, is the main structure for crossing obstacles. The lower structure includes abutments, piers and foundations. The supports are force transmission devices installed at the support locations between the span structure and the piers or abutments. At the same time, piers are added at the connection between the two beams for support. In the process of the piers supporting the beams and slabs, under the stress generated by long-term driving, especially when the vehicle load is unevenly distributed, overloaded or jumping off the bridge head, the stress may aggravate the impact of the stress on the beams and slabs, causing the beams and slabs to move. Long-term accumulation will affect the stability and overall safety of the connection between the beams and slabs and the piers. Therefore, it is necessary to detect the displacement of the bridge.

[0003] When monitoring the displacement of beams and slabs with existing technologies, it is necessary to detect the displacement of the beams and slabs in the front-back, left-right, and up-down directions. Therefore, multiple sets of monitoring mechanisms are not only cumbersome to install, but also the detection data are observed independently, which affects the overall detection work and the efficiency of observation statistics.

[0004] How to invent a bridge beam and slab displacement monitoring device to improve these problems has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] In order to make up for the above deficiencies, the present invention provides a bridge beam and slab displacement monitoring device, which aims to improve the problems raised by the above background technology.

[0006] The present invention is achieved in that:

[0007] The present invention provides a bridge beam and slab displacement monitoring device, comprising a base and a detection plate, wherein a level monitoring mechanism and a displacement monitoring mechanism are provided inside the base, and a communication mechanism is provided inside the detection plate;

[0008] The level monitoring mechanism includes a sleeve 1 arranged at the center of the base, four groups of pistons 2 are evenly distributed on the side wall of the sleeve 1, multiple groups of sleeves 2 are slidably connected inside the base, piston 2 is connected to piston 8 sleeved with sleeve 2, sleeve 2 is connected to pipeline 1 and pipeline 2, piston 1 is sleeved inside sleeve 1, the top of piston 1 is connected to a connecting shaft through a ball head, a buffer block is sleeved inside sleeve 1, piston 1 is connected to piston 3 that cooperates with the buffer block, and sleeve 1 is connected to pipeline 3 and pipeline 4;

[0009] The connecting mechanism includes a horizontal detection tube provided inside the detection plate, a piston four is sleeved inside the horizontal detection tube, a switch one is provided inside the horizontal detection tube, the two ends of the horizontal detection tube are connected to pipeline one and pipeline two respectively, a vertical detection tube is provided inside the detection plate, a piston five is sleeved inside the vertical detection tube, the top and bottom of the piston five are connected to blocks, pipelines three and four are connected to the vertical detection tube, and pipelines six and seven connected to the vertical detection tube are provided inside the detection plate;

[0010] The offset monitoring mechanism includes an angle detection block arranged inside the detection plate, and a sealed cavity is symmetrically opened inside the detection plate along the angle detection block. The angle detection block is movably sleeved with the sealed cavity, and a piston seven with a spring is movably sleeved inside the sealed cavity. A switch two cooperating with the angle detection block is symmetrically arranged inside the detection plate, and sleeve two, sleeve one, the vertical detection tube and the sealed cavity are all filled with hydraulic oil. A liquid path mechanism connecting the vertical detection tube and the sealed cavity is also provided inside the detection plate. The detection plate is also provided with scale grooves corresponding to piston four, piston five and the angle detection block.

[0011] Preferably, the inner cavity cross-sectional area of ​​sleeve 2 provided with piston 8 is larger than the inner cavity cross-sectional area of ​​the horizontal detection tube, the base is symmetrically designed along the detection plate, and the two groups of pipes 1 inside the base converge at one end of the horizontal detection tube and are connected to the horizontal detection tube, and the two groups of pipes 2 inside the base converge at the other end of the horizontal detection tube and are connected to the horizontal detection tube, and the inner cavity cross-sectional area of ​​the vertical detection tube is smaller than the inner cavity cross-sectional area of ​​sleeve 1.

[0012] Preferably, there are two groups of horizontal detection tubes symmetrically distributed, the two coaxial groups of sleeves 2 are connected to one group of horizontal detection tubes, and the other two coaxial groups of sleeves 2 are connected to the other group of horizontal detection tubes.

[0013] Preferably, a spring is provided between the buffer block and sleeve one, the diameter of piston three is smaller than the diameter of the buffer block, a barrier ring cooperating with the buffer block is provided inside sleeve one, and hydraulic oil is filled between the buffer block and sleeve one.

[0014] Preferably, the liquid circuit mechanism includes a connecting cavity opened inside the detection plate, and the vertical detection tubes are symmetrically opened inside the detection plate along the angle detection block, wherein the interior of the vertical detection tube on one side is sleeved with a piston five, and the interior of the vertical detection tube on the other side is sleeved with a piston six, and the interior of the detection plate is provided with pipeline eight and pipeline nine that are matched with piston six, and the top and bottom of piston six are also provided with blocking blocks, and the middle of the blocking blocks is provided with a guide groove, piston five is connected to connecting rod one, and piston six is ​​connected to connecting rod two, and the interior of the connecting cavity is sleeved with slider one and slider two, connecting rod one is connected to slider one, and slider two is connected to connecting rod two, and the interior of the connecting cavity is provided with pipeline five.

[0015] Preferably, pipeline three is connected to the bottom of the side wall of sleeve one, the other end of pipeline three is connected to the interior of the vertical detection tube, and the connection position is above piston five. Pipeline four is connected to the top of one side wall of the sleeve, the other end of pipeline four is connected to the interior of the vertical detection tube, and the connection position of the other end of pipeline four with the vertical detection tube is below piston five.

[0016] Preferably, a connecting hose communicating with the interior of the second slider is provided inside the detection plate, an opening communicating with the interior of the second slider is opened on the side wall of the second slider, and the opening on the side wall of the second slider corresponds to the first slider.

[0017] Preferably, two groups of connecting cavities are symmetrically opened in the vertical direction along the vertical detection tube. The connecting cavity and the slider one, slider two, connecting hose and pipeline five inside it are all designed symmetrically along the vertical detection tube. One end of the connecting hose located at the bottom is connected to the slider two, and the other end is connected to pipeline nine and pipeline six. One end of pipeline five located at the bottom is connected to the interior of the connecting cavity located below, and the other end is connected to the side of the sealed cavity away from piston five. The connecting hose located above is connected to pipeline seven and pipeline eight, and pipeline five located above is connected to one end of the sealed cavity close to piston five.

[0018] Preferably, a buffer piston slidably connected to a connecting rod is sleeved on the inner top and bottom of the vertical detection tube, and a spring is provided between the buffer piston and the vertical detection tube.

[0019] In summary, the beneficial effects of the present invention are:

[0020] 1. Through the twenty-shaped design of sleeve one and piston, the horizontal displacement distance is monitored as the beam and slab move. At the same time, with the lifting and lowering of piston one, the settlement and tilt of the beam and slab in the vertical direction are synchronously monitored, realizing real-time monitoring of the horizontal and vertical movement or tilt of the beam and slab in the same group of structures. The whole can be centrally observed through the detection plate, and the detection results can be amplified by the superposition of liquid paths and the difference in hydraulic transmission cross-sectional areas, which helps to improve observation efficiency and increase detection accuracy.

[0021] 2. Through the symmetrically designed base and the corresponding positions of pistons five and six on both sides combined with the indication of the angle detection block, the settlement and tilt of the beam and slab are distinguished through the coordination and connection of sliders one and two. The center position and degree of tilt are quickly determined through the indications of pistons five and six combined with the angle indication of the angle detection block, avoiding large-scale, unfocused inspection of the entire beam and slab structure, reducing the workload of subsequent construction inspections, and improving inspection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a schematic diagram of the installation of the base and the detection board provided in an embodiment of the present invention.

[0024] Figure 2 It is an overall schematic diagram of the base provided by an embodiment of the present invention.

[0025] Figure 3 2 is an overall schematic diagram of the detection board provided in an embodiment of the present invention.

[0026] Figure 4 It is a schematic diagram of the connection between sleeve 2 and the horizontal detection tube provided in an embodiment of the present invention.

[0027] Figure 5 It is a schematic diagram of the connection between sleeve 1 and the vertical detection tube provided in an embodiment of the present invention.

[0028] Figure 6 It is a schematic diagram of the interior of the detection board provided by an embodiment of the present invention.

[0029] Figure 7 It is a schematic diagram of the interior of the communicating cavity provided in an embodiment of the present invention.

[0030] Figure 8 Schematic diagram of the interior of a vertical detection tube provided by an embodiment of the present invention.

[0031] Figure 9 2 is an overall schematic diagram of the angle detection block provided by an embodiment of the present invention.

[0032] Figure 10 It is an overall schematic diagram of the communicating cavity provided in an embodiment of the present invention.

[0033] Legend:

[0034] 100, base; 101, sleeve 1; 102, piston 1; 103, connecting shaft; 104, piston 2; 105, sleeve 2; 106, piston 8; 107, pipeline 1; 108, pipeline 2; 109, piston 3; 110, buffer block; 111, pipeline 3; 112, pipeline 4; 200, detection plate; 300, horizontal detection tube; 301, piston 4; 302, switch 1; 400, vertical detection tube; 401, Piston five; 402, buffer piston; 403, connecting rod one; 404, slider one; 405, connecting chamber; 406, slider two; 407, connecting hose; 408, pipeline five; 409, blocking block; 410, pipeline six; 411, pipeline seven; 412, pipeline eight; 413, pipeline nine; 415, piston six; 416, connecting rod two; 500, angle detection block; 501, sealing chamber; 502, piston seven; 504, switch two. DETAILED DESCRIPTION

[0035] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0036] Reference Figure 1-10 The present invention provides a bridge beam and slab displacement monitoring device, comprising a base 100 and a detection plate 200, wherein a level monitoring mechanism and a displacement monitoring mechanism are provided inside the base 100, and a communication mechanism is provided inside the detection plate 200;

[0037] The level monitoring mechanism includes a sleeve 101 arranged at the center of the base 100, and four groups of evenly distributed pistons 104 are provided on the side wall of the sleeve 101. The base 100 is internally slidably connected to multiple groups of sleeves 105 designed corresponding to the pistons 104. The pistons 104 are connected to pistons 106 sleeved with the sleeves 105. A spring is provided between the pistons 104 and the sleeves 105. The sleeves 105 are connected to pipelines 107 and 108. The interior of the sleeve 101 is sleeved with piston 102, and the top of the piston 102 is connected to the connecting shaft 103 through a ball head. A group of hydraulic chambers are opened in the sleeve 101, and a buffer block 110 is sleeved inside the hydraulic chamber. The pistons 102 are connected to pistons 109 matched with the buffer block 110. The sleeve 101 is connected to pipelines 111 and 112.

[0038] The communication mechanism includes a horizontal detection tube 300 provided inside the detection plate 200, a piston 4 301 being sleeved inside the horizontal detection tube 300, a switch 1 302 being provided inside the horizontal detection tube 300, and the two ends of the horizontal detection tube 300 being respectively connected to the pipe 1 107 and the pipe 2 108, a vertical detection tube 400 being provided inside the detection plate 200, a piston 5 401 being sleeved inside the vertical detection tube 400, a block 409 being connected to the top and bottom of the piston 5 401, and the piston 5 401 dividing the vertical detection tube 400 into two groups of cavities, upper and lower, and the pipe 3 111 and the pipe 4 112 being respectively connected to the upper and lower parts of the vertical detection tube 400, and the detection plate 200 being provided with a pipe 6 410 and a pipe 7 411 being connected to the vertical detection tube 400;

[0039] The offset monitoring mechanism includes an angle detection block 500 arranged inside the detection plate 200. A sealed cavity 501 is symmetrically opened inside the detection plate 200 along the angle detection block 500. The angle detection block 500 is movably sleeved with the sealed cavity 501. A piston seven 502 with a spring is movably sleeved inside the sealed cavity 501. A switch two 504 cooperating with the angle detection block 500 is symmetrically arranged inside the detection plate 200. Sleeve two 105, sleeve one 101, the vertical detection tube 400 and the sealed cavity 501 are all filled with hydraulic oil. The interior of the detection plate 200 is also provided with a liquid path mechanism connecting the vertical detection tube 400 with the sealed cavity 501. The detection plate 200 is also provided with scale grooves corresponding to piston four 301, piston five 401 and the angle detection block 500.

[0040] Furthermore, the inner cross-sectional area of ​​the piston eight 106 provided in the sleeve two 105 is larger than the inner cross-sectional area of ​​the horizontal detection tube 300, the base 100 is symmetrically designed along the detection plate 200, and the pipeline one 107 inside the two groups of bases 100 converge at one end of the horizontal detection tube 300 and are connected to the horizontal detection tube 300, and the pipeline two 108 inside the two groups of bases 100 converge at the other end of the horizontal detection tube 300 and are connected to the horizontal detection tube 300, and the inner cross-sectional area of ​​the vertical detection tube 400 is smaller than the inner cross-sectional area of ​​the sleeve one 101. It should be noted that, due to the difference in cross-sectional areas, when the piston eight 106 in the sleeve two 105 or the piston three 109 drives the buffer block 110 to move a small distance inside the sleeve one 101, the hydraulic oil entering the horizontal detection tube 300 or the vertical detection tube 400 can drive the piston four 301 or the piston five 401 to move a greater distance due to the difference in cross-sectional areas, thereby amplifying the detection results.

[0041] Furthermore, the horizontal detection tubes 300 are symmetrically distributed in two groups. The two coaxial groups of sleeves 105 are connected to one group of the horizontal detection tubes 300, and the other two coaxial groups of sleeves 105 are connected to the other group of the horizontal detection tubes 300.

[0042] It should be noted that the base 100 is also symmetrically designed. Figure 4 Taking the attached figure as an example, piston eight 106 separates sleeve two 105 into two groups of cavities. The cavities on the right side of the two coaxial groups of sleeve two 105 in the two groups of bases 100 are both converged and connected with pipe one 107. Pipe one 107 is connected to one end of the horizontal detection tube 300. The cavities on the left side of the coaxial sleeve two 105 in the two groups of bases 100 are converged with pipe two 108 and connected to the other end of the horizontal detection tube 300. This is the displacement detection of sleeve one 101 in the horizontal left and right directions. The displacement detection quantities of the two groups of sleeves one 101 can be converged with a group of channels through pipe one 107 or pipe two 108 to realize superimposed detection. Correspondingly, sleeve two 105 along the front and rear directions are connected with another group of horizontal detection tubes 300 to realize detection of the front and rear directions of sleeve one 101.

[0043] It should be noted that a spring is provided between the buffer block 110 and the sleeve 101, the diameter of the piston 3 109 is smaller than the diameter of the buffer block 110, a barrier ring is provided inside the sleeve 101 to cooperate with the buffer block 110, and the space between the buffer block 110 and the sleeve 101 is filled with hydraulic oil;

[0044] Furthermore, the connecting rod between piston three 109 and piston one 102 is sealed and movably connected to the buffer block 110 arranged above piston three 109. The diameter of the barrier ring inside sleeve one 101 is larger than piston three 109 and smaller than buffer block 110, so that the buffer block 110 can move only under the push of piston three 109.

[0045] Reference Figure 2-10 , the liquid path mechanism includes a connecting cavity 405 opened inside the detection plate 200, and the vertical detection tube 400 is symmetrically opened inside the detection plate 200 along the angle detection block 500, wherein the interior of the vertical detection tube 400 on one side is sleeved with a piston 5 401, and the interior of the vertical detection tube 400 on the other side is sleeved with a piston 6 415, and the interior of the detection plate 200 is provided with a pipeline 8 412 and a pipeline 9 413 matched with the piston 6 415, and a block 409 is also provided at the top and bottom of the piston 6 415, and a guide groove is opened in the middle of the block 409, the piston 5 401 is connected to the connecting rod 1 403, and the piston 6 415 is connected to the connecting rod 2 416, the interior of the connecting cavity 405 is sleeved with a slider 1 404 and a slider 2 406, the connecting rod 1 403 is connected to the slider 1 404, and the slider 2 406 is connected to the connecting rod 2 416, and the interior of the connecting cavity 405 is provided with a pipeline 5 408;

[0046] It should be noted that the upper half of the vertical detection tube 400, which is sleeved with piston six 415, is connected to pipeline nine 413, and the lower half is connected to pipeline eight 412. The block 409 will block the corresponding pipeline six 410, pipeline seven 411, pipeline eight 412 or pipeline nine 413 in the initial state. When the block 409 moves toward a certain group of pipelines, the block 409 will release the blockage with the group of pipelines, so that the pipeline is connected to the central guide groove. When the block 409 moves away from a certain group of pipelines, the guide groove moves away from the group of pipelines, and the guide groove will not be connected to the pipeline, thereby maintaining the blockage of the pipeline. This is mainly to achieve that when the piston one 102 is forced to sink or rise, while ensuring internal balance, it will drive the piston five 401 to pump liquid in a single fixed direction to drive the angle detection block 500 to rotate.

[0047] Furthermore, the third pipe 111 is connected to the lower side wall of the first sleeve 101, and the other end of the third pipe 111 is connected to the interior of the vertical detection tube 400, and the connection position is located above the fifth piston 401. The fourth pipe 112 is connected to the upper side wall of the first sleeve 101, and the other end of the fourth pipe 112 is connected to the interior of the vertical detection tube 400, and the connection position of the other end of the fourth pipe 112 and the vertical detection tube 400 is located below the fifth piston 401.

[0048] It should be noted that the two groups of vertical detection tubes 400 are symmetrically designed, and the pipeline three 111 and the pipeline four 112 are also symmetrically designed and are connected to the interior of the vertical detection tube 400 with the piston six 415 connected thereto.

[0049] Furthermore, a connecting hose 407 communicating with the interior of the second slider 406 is provided inside the detection plate 200 , and an opening communicating with the interior of the second slider 406 is opened on the side wall of the second slider 406 , and the opening on the side wall of the second slider 406 corresponds to the first slider 404 .

[0050] It should be noted that two groups of communication cavities 405 are symmetrically opened along the vertical detection tube 400 in the vertical direction. The communication cavities 405 and the slider 1 404, slider 2 406, communication hose 407 and pipeline 5 408 therein are all designed symmetrically along the vertical detection tube 400. One end of the communication hose 407 located at the bottom is connected to the slider 2 406, and the other end is connected to pipeline 9 413 and pipeline 6 410. One end of pipeline 5 408 located at the bottom is connected to the interior of the communication cavity 405 located at the bottom, and the other end is connected to the side of the sealed cavity 501 away from the piston 5 401. The communication hose 407 located at the top is connected to the pipeline 7 411 and pipeline 8 412, and the pipeline 5 408 located at the top is connected to the end of the sealed cavity 501 close to the piston 5 401.

[0051] Specifically, the bottom of piston five 401 and the top of piston six 415 are in the same set of tilt directions, and their common connection can achieve the effect of superimposed detection of tilt angle data, thereby improving detection accuracy. Correspondingly, the top of piston five 401 and the bottom of piston six 415 are also in the same set of tilt directions, which can achieve a superimposed detection effect.

[0052] It should be noted that the top and bottom of the inner side of the vertical detection tube 400 are sleeved with a buffer piston 402 that is slidably connected to the connecting rod 1 403, and a spring is provided between the buffer piston 402 and the vertical detection tube 400;

[0053] Specifically, a buffer piston 402 is also provided inside the vertical detection tube 400 correspondingly provided with piston six 415, and the connecting rod 1 403 is movably connected with the communicating cavity 405 and the vertical detection tube 400 in a limited manner.

[0054] The working process of the bridge beam and slab displacement monitoring device is as follows:

[0055] First, install the detection plate 200 on the abutment body of the bridge body, then symmetrically arrange the two sets of bases 100 on both sides of the detection plate 200, adjust the height and position of the base 100 and the connecting shaft 103, so that the piston four 301, piston five 401, piston six 415 and the vertical detection tube 400 are in the center position, and then fix the connecting shaft 103 to the bottom of the top bridge beam plate, and further fix the base 100 to the abutment body through the connecting plate arranged on the outside of the base 100.

[0056] When detecting beam-slab displacement, when the beam-slab produces horizontal displacement, refer to Figure 4 When the bridge plate moves to the left and right directions as shown in the figure, the horizontal displacement of the beam plate drives the connecting shaft 103 to further drive the sleeve 101 and the piston 2 104 to move in the horizontal direction as shown in the figure. The piston 2 104 drives the piston 8 106 to apply pressure to the inner cavity of the sleeve 2 105 at one end in the moving direction, so that the hydraulic oil in the sleeve 2 105 on both sides enters the pipe 1 107, and then enters the horizontal detection tube 300 to push the piston 4 301 to move in the direction of the beam plate displacement. In addition, due to the two sets of symmetrically designed sleeve 2 105 inside the detection plates 200 on both sides, the inner cavity of the sleeve 2 105 moves in the horizontal direction. One end in the moving direction is connected to pipeline 107, so the displacement of the beam and plate can be multiplexed through the two groups of detection plates 200 and the two groups of sleeves 2 105 inside the two groups of detection plates 200 to achieve multiple amplification of the displacement detection. At the same time, since the cross-sectional area of ​​sleeve 2 105 is larger than the cross-sectional area of ​​the horizontal detection tube 300, the amount of hydraulic oil pumped out by the displacement of piston 8 106 inside sleeve 2 105 can continue to be amplified inside the horizontal detection tube 300, achieving multiple amplification of the detection results, which significantly improves the sensitivity of beam and plate displacement monitoring and the accuracy of the monitoring results.

[0057] It should be noted that, similarly, referring to the above displacement monitoring process, when the beam plate is facing the other side in the horizontal direction, Figure 4 As well as the front and rear side displacement corresponding to the above-mentioned working process, the detected beam and plate displacement result data can also be fed back to another set of horizontal detection tubes 300 for corresponding display through multi-stage amplification. Through the cross-shaped monitoring mechanism, the horizontal displacement of the beam and plate can be detected by a set of devices, and the detection results can be magnified and displayed in multiple stages. When the displacement is too large, the switch one 302 can be pushed by piston four 301 and the alarm device set inside the detection plate 200 can send an electrical signal of excessive displacement to the external workstation to remind the staff to repair it in time. Similarly, when switch two 504 is triggered, an early warning signal that the offset exceeds the threshold can also be sent to the workstation. Furthermore, a switch group can also be set correspondingly on the side wall of the vertical detection tube 400. When the settlement reaches the threshold, the monitoring alarm is triggered by the movement of piston five 401 and piston six 415.

[0058] When the bridge is continuously put into use, especially under the influence of many factors such as long-term vehicle load impact, temperature and beam-slab material properties, the beam-slab deformation and tilting occur. When the axis position of the beam-slab tilt is between the two sets of detection plates 200, the beam-slab tilts, and the positions of the connecting shafts 103 on both sides become higher and lower. If you refer to the attached diagram, Figure 5When the right side becomes lower and the left side rises, the left piston 102 descends and the right piston 102 rises, causing the left piston 3 109 to descend, pushing the lower buffer block 110 downward, and pumping the hydraulic oil at the bottom of the lower buffer block 110 into the upper part of the piston 5 401 inside the vertical detection tube 400 through the pipeline 3 111, pushing the piston 5 401 downward, thereby driving the blocking block 409 below the piston 5 401 to move downward. The downward movement of the blocking block 409 releases the blockage of the pipeline 6 410, so that the hydraulic oil below the piston 5 401 can enter the pipeline 6 410 through the guide groove in the center of the blocking block 409, and then enter the interior of the connecting hose 407 below, and then enter the interior of the slider 2 406; correspondingly, when the right piston 102 is lifted, the piston 6 415 is lifted, and the hydraulic oil above the piston 6 415 is entered through the pipeline 9 413 When the piston 5 401 and the piston 6 415 are lifted and lowered in one group, there is also a height difference between the connecting rod 1 403 and the connecting rod 2 416. In the initial state, the piston 5 401 and the piston 6 415 are at the same height in the horizontal direction, the slider 1 404 and the slider 2 406 are also at the same height, and the slider 2 406 is in contact with the slider 1 404, so that the slider 1 404 blocks the side wall outlet of the slider 2 406. Therefore, when there is a height difference between the connecting rod 1 403 and the connecting rod 2 416, resulting in the misalignment of the slider 2 406 and the slider 1 404, the hydraulic oil in the connecting hose 407 can be connected with the hydraulic oil in the connecting chamber 405, so that the hydraulic pressure in the connecting chamber 405 increases and is transmitted to the inside of the sealing chamber 501 through the pipe 5 408. The gathered pressure enters the attached Figure 8 The sealed cavity 501 on the left side of the angle detection block 500 shown pushes the angle detection block 500 to rotate to the right, and presents the degree of inclination of the beam plate in the form of an angle indication. At the same time, since the cross-sectional area of ​​the vertical detection tube 400 is smaller than the cross-sectional area of ​​the sleeve 101, and the cross-sectional area of ​​the sealed cavity 501 is smaller than the cross-sectional area of ​​the vertical detection tube 400, multi-level amplification and superposition display of the inclination degree detection results can also be achieved, thereby improving the accuracy and intuitiveness of the detection results.

[0059] It should be noted that when the axis position of the tilt of the beam plate is located on the outside of the two sets of detection plates 200, when the axis position of the tilt is located on the left side of the two sets of detection plates 200, at this time, the beam plate drives the two sets of pistons 102 to sink, and because the left piston 102 is closer to the axis position of the tilt, the downward movement of the left piston 102 is less than the sinking distance of the right piston 102. At this time, the left piston six 415 sinks and pumps the internal hydraulic oil into the connecting cavity 405 set above through the pipeline eight 412, and pumps it into the sealing cavity 501 on the right side of the angle detection block 500, pushing the angle detection block 500 to turn left, and the piston one 102 with a larger sinking distance on the right drives the piston five 401 to sink a greater distance. , more hydraulic oil is pumped into the sealed cavity 501 on the left side of the angle detection block 500 through pipeline six 410, pushing the angle detection block 500 to move right, so that there is a pressure difference between the two sides of the angle detection block 500 inside the sealed cavity 501, and the pressure on the left side of the angle detection block 500 is greater than the pressure on the right side. Therefore, the more hydraulic oil pressure on the left side of the angle detection block 500 can push the angle detection block 500 to move to the right, and the force of the angle detection block 500 driven to rotate is close to the difference between the left hydraulic transmission force and the right hydraulic transmission force, so that the rotation angle of the angle detection block 500 is related to the difference between the settlement of the right piston 102 and the settlement of the left side, thereby obtaining the overall inclination angle of the beam and slab.

[0060] It should be noted that, through the design of the coordinated blocking of sliders 2 406 and 1 404, when the beam slab experiences vertical settlement rather than lateral tilt along the distribution direction of the pile foundations, and due to the spacing between the pile foundations, large-scale settlement generally does not occur. The settlement between the piers generally occurs independently or is affected and settles gradually and sequentially. Therefore, when the settlement of adjacent piers drives the beam slab to settle, the beam slab drives the pistons 102 on both sides to settle simultaneously. When the pistons 102 on both sides move synchronously, the corresponding connecting rods 1 403 and 2 416 also move synchronously, causing sliders 1 404 and 2 406 to move synchronously. Slider 1 404 can maintain blocking of slider 2 406, so that while pistons 5 401 and 6 415 move to reflect the settlement distance parameter, the pressure inside the connecting chamber 405 remains unchanged, and thus the pressure inside the sealed chamber 501 remains unchanged. The angle detection block 500 does not rotate, and the increased pressure inside the vertical detection tube 400 can be buffered and absorbed by the movement of the buffer piston 402 and the compression of the spring connected to the buffer piston 402.

[0061] Furthermore, by observing piston five 401, piston six 415 and angle detection block 500, a detection conclusion can be drawn. Piston five 401 and piston six 415 can reflect the settlement depth of both sides of the beam plate in the vertical direction, and amplify the detection result by the difference between the internal cross-sectional area of ​​sleeve one 101 and the internal cross-sectional area of ​​the vertical detection tube 400, and detect the tilt direction and degree of the beam plate by the rotation direction and rotation angle of the angle detection block 500. When piston six 415 and piston five 401 are located above and below the initial zero point position of the scale line of the vertical detection tube 400, it can be concluded that the position of the tilt rotation axis of the beam plate is located between the two groups of bases 100, and the smaller the value detected by piston six 415 and piston five 401, the closer the tilt rotation center axis of the beam plate is to which group of bases 100, and when the values ​​detected by piston five 401 and piston six 415 are both above the initial zero point position, it means that the position of the axis of rotation of the beam plate is located between the two groups of bases 100. The outside of the group with smaller detection values. Similarly, piston five 401 and piston six 415 are both below the initial detection zero point position, which means that the axis position of the beam-slab rotation is located outside the group with smaller detection values ​​in the two groups of bases 100. Not only can the settlement or tilt of different positions of the beam-slab be monitored in real time through piston five 401 and piston six 415, but the detection results can be amplified by the superposition of liquid circuits and the difference in hydraulic transmission cross-sectional areas, which helps to improve observation efficiency and increase detection accuracy. At the same time, through the detection of piston five 401, piston six 415 and angle detection block 500, the center of the beam-slab tilt position can be quickly determined when the beam-slab tilts, the tilt center position can be quickly located, and the area of ​​the beam-slab structure with the most unfavorable force can be determined according to the tilt angle and tilt position. A repair plan can be quickly formulated, and reinforcement measures can be taken focusing on these areas to avoid large-scale, unfocused detection of the entire beam-slab structure, reduce the workload of subsequent construction detection, and improve detection efficiency.

[0062] It should be noted that piston seven 502 has a compression and buffering effect. The piston seven 502 with springs of the same parameters on both sides of the angle detection block 500 can provide a compression stroke for the rotation of the angle detection block 500, while maintaining pressure balance on both sides of the angle detection block 500.

[0063] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A bridge beam and slab displacement monitoring device, comprising a base and a detection plate, characterized in that: The base is provided with a level monitoring mechanism and a deviation monitoring mechanism inside, and the detection plate is provided with a communication mechanism inside; The level monitoring mechanism includes a sleeve 1 arranged at the center of the base, four groups of evenly distributed pistons 2 are arranged on one side wall of the sleeve, sleeve 2 is slidably connected to the interior of the base, piston 2 is connected to piston 8, sleeve 2 is connected to pipeline 1 and pipeline 2, piston 1 is sleeved inside the sleeve 1, the top of piston 1 is connected to a connecting shaft through a ball head, a buffer block is sleeved inside the sleeve 1, piston 1 is connected to piston 3 that cooperates with the buffer block, and sleeve 1 is connected to pipeline 3 and pipeline 4; The communication mechanism includes a horizontal detection tube opened inside the detection plate, a piston four is sleeved inside the horizontal detection tube, a switch one is provided inside the horizontal detection tube, the two ends of the horizontal detection tube are respectively connected to pipeline one and pipeline two, a vertical detection tube is opened inside the detection plate, a piston five is sleeved inside the vertical detection tube, the top and bottom of the piston five are connected to blocks, and pipelines six and pipelines seven are opened inside the detection plate; The offset monitoring mechanism includes an angle detection block disposed inside a detection plate, a sealed cavity is defined inside the detection plate, the angle detection block is movably sleeved with the sealed cavity, a spring-loaded piston (7) is movably sleeved inside the sealed cavity, a switch (2) is disposed inside the detection plate, and a fluid path mechanism is disposed inside the detection plate to connect the vertical detection tube to the sealed cavity; The liquid circuit mechanism includes a connecting cavity opened inside the detection plate, and the vertical detection tube is symmetrically opened inside the detection plate along the angle detection block, wherein the interior of the vertical detection tube on one side is sleeved with a piston five, and the interior of the vertical detection tube on the other side is sleeved with a piston six, and the interior of the detection plate is provided with pipeline eight and pipeline nine matched with piston six, and the top and bottom of the piston six are also provided with blocking blocks, and the middle of the blocking block is provided with a guide groove, the piston five is connected to connecting rod one, and the piston six is ​​connected to connecting rod two, the interior of the connecting cavity is sleeved with slider one and slider two, the connecting rod one is connected to slider one, and the slider two is connected to connecting rod two, and the interior of the connecting cavity is provided with pipeline five.

2. A bridge beam and slab displacement monitoring device according to claim 1, characterized in that: The cross-sectional area of ​​the inner cavity of the sleeve 2 provided with the piston 8 is larger than the cross-sectional area of ​​the inner cavity of the horizontal detection tube. The base is symmetrically designed along the detection plate, and the two groups of pipes inside the base converge at one end of the horizontal detection tube and are connected to the horizontal detection tube. The two groups of pipes inside the base converge at the other end of the horizontal detection tube and are connected to the horizontal detection tube. The cross-sectional area of ​​the inner cavity of the vertical detection tube is smaller than the cross-sectional area of ​​the inner cavity of the sleeve 1.

3. The bridge beam and slab displacement monitoring device according to claim 1, characterized in that: The horizontal detection tubes are symmetrically distributed in two groups. The two coaxial groups of sleeves 2 are connected to one group of horizontal detection tubes, and the other two coaxial groups of sleeves 2 are connected to the other group of horizontal detection tubes.

4. The bridge beam and slab displacement monitoring device according to claim 1, characterized in that: A spring is provided between the buffer block and sleeve one, the diameter of the piston three is smaller than the diameter of the buffer block, a barrier ring cooperating with the buffer block is provided inside the sleeve one, and hydraulic oil is filled between the buffer block and sleeve one.

5. The bridge beam and slab displacement monitoring device according to claim 1, characterized in that: The pipeline three is connected to the bottom of the side wall of the sleeve one, and the other end of the pipeline three is connected to the interior of the vertical detection tube, and the connection position is above the piston five. The pipeline four is connected to the top of one side wall of the sleeve, and the other end of the pipeline four is connected to the interior of the vertical detection tube, and the connection position of the other end of the pipeline four and the vertical detection tube is below the piston five.

6. The bridge beam and slab displacement monitoring device according to claim 5, characterized in that: The interior of the detection plate is provided with a connecting hose connected to the interior of the second slider. The side wall of the second slider is provided with an opening connected to the interior of the second slider. The opening of the side wall of the second slider corresponds to the first slider.

7. The bridge beam and slab displacement monitoring device according to claim 6, characterized in that: The communicating cavity is symmetrically opened in two groups along the vertical detection tube in the vertical direction. The communicating cavity and the slider one, slider two, communicating hose and pipeline five inside it are all designed symmetrically along the vertical detection tube. One end of the communicating hose located at the bottom is connected with the slider two, and the other end is connected with pipeline nine and pipeline six. One end of the pipeline five located at the bottom is connected with the interior of the communicating cavity located below, and the other end is connected with the side of the sealed cavity away from the piston five. The communicating hose located above is connected with pipeline seven and pipeline eight, and the pipeline five located above is connected with the end of the sealed cavity close to the piston five.

8. The bridge beam and slab displacement monitoring device according to claim 1, characterized in that: The top and bottom of the inner side of the vertical detection tube are both sleeved with a buffer piston that is slidably connected to the connecting rod, and a spring is provided between the buffer piston and the vertical detection tube.

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