A three-way displacement monitoring device for bridge expansion joints

Abstract

The present application discloses a three-dimensional displacement monitoring device for a bridge expansion joint, comprising: a first fixed length, a first fixed length fiber Bragg grating, a first digital movable ruler, a first movable ruler fiber Bragg grating, a first connecting assembly, a second fixed length, a second digital movable ruler, a first connecting piece, a second connecting piece, a vertical monitoring device, and a second connecting assembly; the first digital movable ruler is used to move along the first fixed length to measure the relative displacement in the transverse direction of the bridge expansion joint, and the second digital movable ruler is used to move along the second fixed length to measure the relative displacement in the longitudinal direction of the bridge expansion joint; the vertical monitoring device is used to measure the vertical relative displacement generated by the bridge expansion joint. The three-dimensional displacement monitoring device for a bridge expansion joint provided by the present application can monitor and warn the three-dimensional displacement of the bridge expansion joint, and can adjust the alarm threshold of the three-dimensional displacement of the bridge expansion joint according to different bridge spans, and has strong practicality and high monitoring efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of bridge monitoring equipment, and more specifically, to a three-dimensional displacement monitoring device for a bridge expansion joint. Background Art

[0002] The expansion joints of bridges are mainly used to adjust the displacement and connection between the superstructure caused by vehicle loads and bridge construction materials. With the continuous development of social economy and the sharp increase in traffic volume, some bridge expansion joints have uneven heights and horizontal misalignment, which will have an extremely adverse impact on the beam body and driving safety. Therefore, it is necessary to take appropriate measures to monitor the existing expansion joints to ensure the overall structural safety of the bridge.

[0003] The principles used by commonly used bridge expansion joint monitoring devices can be divided into the following categories: the first category is to judge the changes in the expansion joint by collecting the sound wave signals generated when the vehicle passes over the expansion joint; the second category is to realize alarm monitoring by making some components inside the device contact through the displacement of the expansion joint; the third category is to drive the displacement of the internal components of the device through the displacement of the expansion joint, and realize the monitoring of the expansion joint by monitoring the force of the components.

[0004] Most of the existing bridge expansion joint monitoring devices can only play an early warning role, and cannot monitor the deformation of bridge expansion joints. For example, the patent number is: 202011548339.7, and the patent name is a bridge expansion joint width monitoring and early warning device. It states: When the device as a whole deflects along the positioning axis, the two T-shaped connecting seats will push the left and right top shafts upward, so that the two top shafts and the two support plates will contact and contact the four buzzer alarms, thereby monitoring the upper and lower misalignment of the bridge.

[0005] Therefore, how to monitor the specific values ​​of the relative displacement of the expansion joint and how to adjust the alarm threshold of the device according to different bridge spans have become problems that need to be solved urgently by technical personnel in this field. Summary of the invention

[0006] In order to solve the above technical problems, the present application provides a three-way displacement monitoring device for a bridge expansion joint, which can improve the monitoring efficiency of the bridge expansion joint and can timely understand the expansion or contraction distance of the bridge expansion joint.

[0007] The technical solutions provided by this application are as follows:

[0008] The present application provides a three-dimensional displacement monitoring device for a bridge expansion joint, comprising: a first expansion joint, a first fixed length, a first fixed length fiber Bragg grating, a first digital display movable ruler, a first movable ruler fiber Bragg grating, a second fixed length, a second digital display movable ruler, a first connecting piece, a second connecting piece, a vertical monitoring device, a second connecting assembly, and a second expansion joint; the first expansion joint is connected to the first connecting assembly; the first connecting assembly is connected to the first fixed length, and a plurality of the first fixed length fiber Bragg gratings are arranged on the first fixed length; a first opening structure is arranged on the first digital display movable ruler, the first digital display movable ruler is connected to the first fixed length, the first fixed length is arranged in the first opening structure, and the first movable ruler fiber Bragg grating is located in the first opening structure; one end of the first connecting piece is connected to the first digital display movable ruler, and the first connecting piece is located in the first The digital movable ruler is located away from one side of the first connecting component, the first digital movable ruler is used to move along the first fixed length to measure the relative displacement in the transverse direction of the bridge caused by the expansion joint of the bridge, and the other end of the first connecting member is connected to the second fixed length; the second fixed length is provided with the second digital movable ruler, the second digital movable ruler is used to move along the second fixed length to measure the relative displacement in the longitudinal direction of the bridge caused by the expansion joint of the bridge; the second connecting member is provided at the bottom of the second digital movable ruler, the vertical monitoring device is connected to the side of the second connecting member away from the second digital movable ruler; the second connecting component is connected to the vertical monitoring device, and the vertical monitoring device is used to measure the vertical relative displacement caused by the expansion joint of the bridge; the second expansion joint is arranged opposite to the first expansion joint, and the second connecting component is connected to the inner side of the second expansion joint.

[0009] Furthermore, in a preferred embodiment of the present application, it further includes: a first guide assembly and a second guide assembly;

[0010] The second guide assembly is arranged opposite to the first guide assembly, and the first guide assembly and the second guide assembly are arranged above the first fixed length;

[0011] The first guide assembly includes: a first catheter assembly and a second catheter assembly;

[0012] The first conduit assembly is disposed at the top of the first fixed length;

[0013] The second catheter assembly is adapted to move within the first catheter assembly.

[0014] Further, in a preferred embodiment of the present application, the first catheter assembly includes: a first catheter and a rotating assembly;

[0015] The first conduit is located at the top of the first fixed length;

[0016] The rotating assembly is disposed in the first conduit.

[0017] Further, in a preferred embodiment of the present application, the rotating assembly includes: a fixed block, a rotating shaft, a baffle and a spring;

[0018] The fixing block is arranged at the bottom of the first conduit;

[0019] The rotating shaft is arranged at an end of the fixing block away from the second catheter assembly;

[0020] The baffle is connected to the rotating shaft, and the baffle is an L-shaped baffle;

[0021] The spring is used to connect the baffle and the first conduit.

[0022] Furthermore, in a preferred embodiment of the present application, it further includes: a first conductive block;

[0023] The first conductive block is arranged on the top of the first fixed length.

[0024] Further, in a preferred embodiment of the present application, the second conduit assembly includes: a second conduit, a guide rod, a guide plate and a connecting rod;

[0025] One end of the second conduit is disposed on the top of the first conductive block, and the other end is connected to the guide rod;

[0026] The guide rod is disposed in the second conduit;

[0027] The guide plate is arranged at one end of the guide rod close to the first guide tube;

[0028] The connecting rod is arranged between the guide plate and the guide rod, and the connecting rod is located at the four corners of the guide plate.

[0029] Furthermore, in a preferred embodiment of the present application, it further comprises: a battery, a wire and a third catheter;

[0030] The battery is connected to the second fixed length, the first connecting member, the first guide assembly and the second guide assembly;

[0031] The battery is used to supply power to the first digital movable ruler and the conductive block;

[0032] The third conduit is connected to the battery, the first guide assembly and the second guide assembly;

[0033] The guide wire is located within the third catheter, the first guide assembly, and the second guide assembly.

[0034] Furthermore, in a preferred embodiment of the present application, it further includes: a first alarm;

[0035] The first alarm is connected to the first guide assembly, the second guide assembly and the third conduit, and the first alarm is connected to the battery through the wire in the third conduit.

[0036] Furthermore, in a preferred embodiment of the present application, the second catheter assembly is used to drive the wire in the second catheter to approach the conductive block, and the wire is used to connect the working circuit of the first alarm when the second catheter contacts the conductive block.

[0037] Furthermore, in a preferred embodiment of the present application, the second guide assembly has the same structure as the first guide assembly.

[0038] The technical solution provided by the present application, the three-dimensional displacement monitoring device of the bridge expansion joint involved in the present application, the first expansion joint, the first fixed length, the first fixed length fiber Bragg grating, the first digital display movable ruler, the first movable ruler fiber Bragg grating, the second fixed length, the second digital display movable ruler, the first connecting piece, the second connecting piece, the vertical monitoring device, the second connecting assembly, the second expansion joint; the first expansion joint is connected to the first connecting assembly; the first connecting assembly is connected to the first fixed length, and a plurality of the first fixed length fiber Bragg gratings are arranged on the first fixed length; the first digital display movable ruler is provided with a first opening structure, the first digital display movable ruler is connected to the first fixed length, the first fixed length is arranged in the first opening structure, and the first movable ruler fiber Bragg grating is located in the first opening structure; one end of the first connecting piece The first connecting member is connected to the first digital movable ruler, the first connecting member is located on a side of the first digital movable ruler away from the first connecting assembly, the first digital movable ruler is used to move along the first fixed length to measure the relative displacement in the transverse direction of the bridge caused by the expansion joint of the bridge, and the other end of the first connecting member is connected to the second fixed length; the second fixed length is provided with the second digital movable ruler, the second digital movable ruler is used to move along the second fixed length to measure the relative displacement in the longitudinal direction of the bridge caused by the expansion joint of the bridge; the second connecting member is provided at the bottom of the second digital movable ruler, the vertical monitoring device is connected to a side of the second connecting member away from the second digital movable ruler; the second connecting assembly is connected to the vertical monitoring device, and the vertical monitoring device is used to measure the vertical relative displacement caused by the expansion joint of the bridge;The second expansion joint is arranged opposite to the first expansion joint, and the second connecting component is connected to the inner side of the second expansion joint. Thus, when the bridge expansion joint generates a relative movement in the transverse direction, the first expansion joint drives the first connecting component, the first fixed length and the first fixed length optical fiber Bragg grating to generate a transverse movement. The second expansion joint drives the second connecting component to move, thereby driving the second connecting piece to move, thereby causing the first digital movable ruler to generate a transverse displacement on the first fixed length, thereby being able to measure the relative displacement in the transverse direction. When the two sides of the bridge generate a relative displacement in the longitudinal direction, the first expansion joint drives the first connecting component, the first fixed length, the first connecting piece and the second fixed length to generate a water The second expansion joint drives the second connection assembly, the vertical monitoring device and the second connection piece to produce horizontal displacement, thereby causing the second digital display movable ruler to produce longitudinal displacement on the second fixed ruler, which can realize the measurement of the horizontal relative displacement of the bridge expansion joint. When the bridge expansion joint produces vertical relative movement, the second connection assembly drives the vertical monitoring device to measure the vertical relative displacement of the bridge expansion joint. The technical solution involved in this application can timely measure the transverse, longitudinal and vertical displacement of the bridge expansion joint, and can measure the dynamic three-dimensional displacement of the bridge expansion joint. It has strong practicality and good adaptability, which is convenient for the staff to timely understand the expansion or contraction distance of the bridge expansion joint, and improves the monitoring efficiency of the beam expansion joint. ; BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 A schematic diagram of the overall structure of a three-dimensional displacement monitoring device for a bridge expansion joint provided in an embodiment of the present application;

[0041] Figure 2 A schematic diagram of a first guide assembly of a three-way displacement monitoring device for a bridge expansion joint provided in an embodiment of the present application;

[0042] Figure 3 A schematic diagram of the connection of the first expansion joint of the three-way displacement monitoring device for a bridge expansion joint provided in an embodiment of the present application;

[0043] Figure 4 A schematic diagram of a rotating assembly of a three-way displacement monitoring device for a bridge expansion joint provided in an embodiment of the present application;

[0044] Figure 5A schematic diagram of the connection of the third conduit of the three-way displacement monitoring device for a bridge expansion joint provided in an embodiment of the present application;

[0045] Figure 6 A schematic diagram of a first connecting assembly of a three-way displacement monitoring device for a bridge expansion joint provided in an embodiment of the present application;

[0046] Figure 7 A schematic diagram of the connection of a first digital movable ruler of a three-dimensional displacement monitoring device for a bridge expansion joint provided in an embodiment of the present application;

[0047] Figure 8 A schematic diagram of the connection of a vertical monitoring device of a three-way displacement monitoring device for a bridge expansion joint provided in an embodiment of the present application;

[0048] Fig. 9 A schematic diagram of the connection of the third connecting piece of the three-way displacement monitoring device for a bridge expansion joint provided in an embodiment of the present application.

[0049] In the figure: 1, first expansion joint; 2, first fixed length; 3, first fixed length fiber Bragg grating; 4, first digital display movable scale; 5, first movable scale fiber Bragg grating; 6, second fixed length; 7, second digital display movable scale; 8, first connecting piece; 9, second connecting piece; 10, vertical monitoring device; 11, second connecting assembly; 12, second expansion joint; 13, first connecting assembly; 14, first opening structure; 15, housing; 16, third fixed length; 17, third digital display movable scale; 18, first catheter assembly; 19, second catheter assembly; 21, fixing block; 22 , shaft; 23, baffle; 24, spring; 25, first conduit; 26, second conduit; 27, guide rod; 28, guide plate; 29, connecting rod; 30, first conductive block; 31, battery; 33, first alarm; 34, second alarm; 35, third alarm; 36, third connecting piece; 37, third conduit; 38, second conductive block; 39, third conductive block; 40, fourth conduit; 41, column; 42, third guide assembly; 43, fourth guide assembly; 44, fifth guide assembly; 45, sixth guide assembly. DETAILED DESCRIPTION

[0050] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of this application.

[0051] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0052] It should be understood that the terms "length", "width", "up", "down", "front", "back", "first", "second", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0054] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to illustrate the disclosed contents for people familiar with this technology to understand and read, and are not used to limit the restrictive conditions for the implementation of this application. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0055] Please Figure 1-Figure 9 As shown, the present application provides a three-dimensional displacement monitoring device for a bridge expansion joint, comprising: a first expansion joint 1, a first fixed length 2, a first fixed length fiber Bragg grating 3, a first connecting assembly 13, a first digital display movable ruler 4, a first movable ruler fiber Bragg grating 5, a second fixed length 6, a second digital display movable ruler 7, a first connecting member 8, a second connecting member 9, a vertical monitoring device 10, a second connecting assembly 11, and a second expansion joint 12;

[0056] The first expansion joint 1 is connected to the first connection component 13; the first connection component 13 is connected to the first fixed length 2, and the first fixed length 2 is provided with a plurality of the first fixed length fiber Bragg gratings 3; the first digital movable ruler 4 is provided with a first opening structure 14, the first digital movable ruler 4 is connected to the first fixed length 2, the first fixed length 2 is arranged in the first opening structure 14, and the first movable ruler fiber Bragg grating 5 is located inside the first opening structure 14; one end of the first connecting member 8 is connected to the first digital movable ruler 4, and the first connecting member 8 is located on the side of the first digital movable ruler 4 away from the first connecting member 13, and the first digital movable ruler 4 is used to move along the first fixed length 2 to measure the transverse displacement generated by the bridge expansion joint. The other end of the first connecting member 8 is connected to the second fixed length 6; the second fixed length 6 is provided with the second digital movable ruler 7, and the second digital movable ruler 7 is used to move along the second fixed length 6 to measure the relative displacement of the bridge expansion joint in the bridge direction; the second connecting member 9 is provided at the bottom of the second digital movable ruler 7, and the vertical monitoring device 10 is connected to the side of the second connecting member 9 away from the second digital movable ruler 7; the second connecting assembly 11 is connected to the vertical monitoring device 10, and the vertical monitoring device 10 is used to measure the vertical relative displacement of the bridge expansion joint; the second expansion joint 12 is arranged opposite to the first expansion joint 1, and the second connecting assembly 11 is connected to the inner side of the second expansion joint 12.

[0057] The present application provides a three-way displacement monitoring device for a bridge expansion joint. When the bridge expansion joint produces a relative movement in the transverse direction, the first expansion joint 1 drives the first connection component 13, the first fixed length 2 and the first fixed length fiber grating 3 to produce a transverse movement. The second expansion joint 12 drives the second connection component 11 to move, thereby driving the second connection piece 9 to move, thereby prompting the first digital movable ruler 4 to produce a transverse displacement on the first fixed length 2, so that the relative displacement in the transverse direction can be measured. When the two sides of the bridge have a relative displacement in the longitudinal direction, the first expansion joint 1 drives the first connection component 13, the first fixed length 2, the first connection piece 8 and the second fixed length 6 to produce a horizontal displacement in the longitudinal direction. The second expansion joint 12 drives the second connection component 11 to move, thereby driving the second connection piece 9 to move, thereby prompting the first digital movable ruler 4 to produce a transverse displacement on the first fixed length 2, so that the relative displacement in the transverse direction can be measured. The gap 12 drives the second connecting component 11, the vertical monitoring device 10 and the second connecting member 9 to produce horizontal displacement along the bridge, thereby prompting the second digital movable ruler 7 to produce displacement along the bridge on the second fixed ruler 6, so as to realize the measurement of the relative displacement of the bridge expansion joint along the bridge. When the bridge expansion joint produces vertical relative movement, the second connecting component 11 drives the vertical monitoring device 10 to measure the vertical relative displacement produced by the bridge expansion joint. Therefore, the present application involves a dynamic technical solution, which can timely measure the transverse, longitudinal and vertical displacements of the bridge expansion joint, and can measure the dynamic three-dimensional displacement of the bridge expansion joint. It has strong practicality and good adaptability, which is convenient for the staff to timely understand the expansion or contraction distance of the bridge expansion joint, thereby improving the monitoring efficiency of the beam expansion joint.

[0058] It should be noted that, in the embodiment of the present application, the first connecting component 13 includes: an expansion screw and a suction cup, one end of the expansion screw is connected to the first expansion joint 1, and the other end is connected to the suction cup, and the suction cup is connected to the first fixed length 2.

[0059] To be more specific, the first connecting component 13 and the second connecting component 11 have the same structure.

[0060] It should be noted that, in the embodiment of the present application, the vertical monitoring device 10 includes: a housing 15, a third fixed scale 16, and a third digital movable scale 17. The housing 15 is connected to the second digital movable scale 7, the top of the third fixed scale 16 is connected to the housing 15, and the third fixed scale 16 is arranged in a direction perpendicular to the bridge deck.

[0061] It should be additionally explained that the third fixed length 16 has the same structure as the first fixed length 2 , the second fixed length 6 has the same structure as the first fixed length 2 , the third digital movable scale 17 has the same structure as the first digital movable scale 4 , and the second digital movable scale 7 has the same structure as the first digital movable scale 4 .

[0062] To be more specific, the second fixed length 6 is provided with a second fixed length fiber Bragg grating, the second digital display movable scale 7 is provided with a second opening structure, the second moving scale fiber Bragg grating is provided in the second opening structure, the third fixed length 16 is provided with a third fixed length fiber Bragg grating, the third digital display movable scale 17 is provided with a third opening structure, the third moving scale fiber Bragg grating is provided in the third opening structure.

[0063] To be more specific, when a relative vertical displacement occurs on both sides of the bridge expansion joint, the second connecting assembly 11 drives the third digital movable ruler 17 to move along the third fixed ruler 16 to measure the vertical relative displacement of the bridge expansion joint.

[0064] It should be supplemented that, in the embodiment of the present application, a third connecting member 36 is also included.

[0065] To be more specific, one end of the third connecting member 36 is connected to the second connecting member 9 , and the other end passes through the housing 15 and is connected to the top of the third fixed length 16 .

[0066] To be more specific, the housing 15 is provided with a column 41 , and the column 41 is provided with a through hole structure.

[0067] Specifically, in the embodiment of the present application, it also includes: a first guide component and a second guide component;

[0068] The second guide assembly is arranged opposite to the first guide assembly, and the first guide assembly and the second guide assembly are arranged above the first fixed length 2;

[0069] The first guide assembly includes: a first catheter assembly 18 and a second catheter assembly 19;

[0070] The first conduit assembly 18 is disposed on the top of the first fixed length 2;

[0071] The second catheter assembly 19 is used to move inside the first catheter assembly 18 .

[0072] Specifically, in the embodiment of the present application, the first conduit assembly 18 includes: a first conduit 25 and a rotating assembly;

[0073] The first conduit 25 is located at the top of the first fixed length 2;

[0074] The rotating assembly is disposed in the first conduit 25 .

[0075] It should be supplemented that, in the embodiment of the present application, the rotating components are provided in multiple groups.

[0076] To be more specific, a plurality of groups of the rotating components are arranged at equal intervals in the first conduit 25 .

[0077] Specifically, in the embodiment of the present application, the rotating assembly includes: a fixed block 21, a rotating shaft 22, a baffle 23 and a spring 24;

[0078] The fixing block 21 is disposed at the bottom of the first conduit 25;

[0079] The rotating shaft 22 is disposed at an end of the fixing block 21 away from the second conduit assembly 19;

[0080] The baffle 23 is connected to the rotating shaft 22, and the baffle 23 is an L-shaped baffle;

[0081] The spring 24 is used to connect the baffle 23 and the first conduit 25 .

[0082] To be more specific, the spring 24 is located between the bottom of the baffle 23 and the first conduit 25 .

[0083] To be more specific, the second conduit 26 is an L-shaped conduit.

[0084] Specifically, in the embodiment of the present application, it also includes: a first conductive block 30;

[0085] The first conductive block 30 is disposed on the top of the first fixed length 2 .

[0086] To explain more specifically, the number of the first conductive blocks 30 is two.

[0087] It should be supplemented that, in the embodiment of the present application, it also includes: a second conductive block 38 and a third conductive block 39 .

[0088] To be more specific, the second conductive block 38 is disposed on a side surface of the second digital movable ruler 7 .

[0089] To be more specific, the third conductive block 39 is disposed on the top and bottom of the third digital movable ruler 17 .

[0090] Specifically, in the embodiment of the present application, the second conduit assembly 19 includes: a second conduit 26, a guide rod 27, a guide plate 28 and a connecting rod 29;

[0091] One end of the second conduit 26 is disposed on the top of the first conductive block 30, and the other end is connected to the guide rod 27;

[0092] The guide rod 27 is disposed in the second conduit 26;

[0093] The guide plate 28 is disposed at one end of the guide rod 27 close to the first guide tube 25;

[0094] The connecting rod 29 is disposed between the guide plate 28 and the guide rod 27 , and the connecting rod 29 is located at four corners of the guide plate 28 .

[0095] To be more specific, when the expansion joint of the bridge produces a relative movement in the transverse direction, the first connecting component 13 drives the first fixed length 2 to move, and the second connecting component 11 drives the first digital movable scale 4 to move through the second connecting member 9, thereby causing the first movable scale fiber grating 5 to produce a transverse displacement on the first fixed length 2, thereby being able to measure the relative displacement in the transverse direction.

[0096] To be more specific, the second conduit 26 is adjusted to move toward the first conduit 25, the guide rod 27 drives the guide plate 28 to push the baffle 23, and the baffle 23 rotates around the rotating shaft 22 in the direction away from the guide plate 28, so that the spring 24 is in a compression device. When the baffle 23 is located between the guide rod 27 and the guide plate 28, the relative positions of the first fixed ruler 2 and the first digital movable ruler 4 are fixed, that is, the distance between the first conduit 25 and the second conduit 26 can be adjusted.

[0097] To be more specific, when the spring 24 is in a balanced state, that is, when the second conduit assembly 19 is not in contact with the second rotating assembly, the top of the baffle 23 is flush with the bottom of the guide plate 28, so that when the second conduit 26 moves toward the direction close to the first conduit 25, the guide plate 28 can push down the baffle 23.

[0098] Specifically, in the embodiment of the present application, it also includes: a battery 31, a wire and a third conduit 37;

[0099] The battery 31 is connected to the second fixed length 6, the first connecting member 8, the first guide assembly and the second guide assembly;

[0100] The battery 31 is used to supply power to the first digital movable ruler 4 and the conductive block;

[0101] The third conduit 37 is connected to the battery 31, the first guide assembly and the second guide assembly;

[0102] The guide wire is located in the third catheter 37, the first guide assembly and the second guide assembly.

[0103] To be more specific, the third conduit 37 is an L-shaped conduit.

[0104] To be more specific, the cell 31 is a HIT high-performance photovoltaic cell.

[0105] It should be supplemented that, in the embodiment of the present application, it also includes: a wire groove arranged on the first fixed length 2.

[0106] To be more specific, the wire slot is disposed between the two first conductive blocks 30 .

[0107] To be more specific, a wire is disposed in the wire slot, and the wire is connected to the battery 31 to provide electrical energy to the two first conductive blocks 30 .

[0108] To be more specific, a wire is provided between the first digital movable ruler 4 and the battery 31 , so that the battery 31 can provide electrical energy to the first digital movable ruler 4 .

[0109] It should be supplemented that, in the embodiment of the present application, the battery 31 is also used to supply power to the second conductive block 38 , the second digital movable ruler 7 , the third conductive block 39 and the third digital movable ruler 17 .

[0110] To be more specific, the battery 31 is connected to the second conductive block 38 , the second digital movable ruler 7 , the third conductive block 39 and the third digital movable ruler 17 through wires.

[0111] Specifically, in the embodiment of the present application, it also includes: a first alarm 33;

[0112] The first alarm 33 is connected to the first guide assembly, the second guide assembly and the third conduit 37 , and the first alarm 33 is connected to the battery 31 through the wire in the third conduit 37 .

[0113] To be more specific, the first alarm 33 is used to issue an alarm reminder when the transverse displacement of the expansion joint exceeds the alarm threshold.

[0114] It should be supplemented that, in the embodiment of the present application, it also includes: a second alarm 34 and a third alarm 35.

[0115] To be more specific, the second alarm 34 is used to issue an alarm reminder when the longitudinal displacement of the expansion joint exceeds the alarm threshold, and the third alarm 35 is used to issue an alarm reminder when the vertical displacement of the expansion joint exceeds the alarm threshold.

[0116] Specifically, in the embodiment of the present application, the second conduit assembly 19 is used to drive the wire in the second conduit 26 to approach the conductive block, and the wire is used to connect the working circuit of the first alarm 33 when the second conduit 26 contacts the conductive block.

[0117] To be more specific, the first alarm 33 can send out remote alarm reminders via text messages, emails, phone calls, WeChat, etc.

[0118] To be more specific, after the working circuit of the first alarm 33 is connected, the first alarm 33 can be activated to issue an alarm reminder, which is convenient for accurate monitoring and early warning of the transverse displacement of the bridge expansion joint, and is convenient for the staff to detect it in time, thereby improving the monitoring efficiency of the beam expansion joint. Before monitoring, the position of the second conduit 26 in the first conduit 25 can be adjusted according to actual needs, that is, the distance between the first conductive block 30 and the wire can be adjusted, and the alarm threshold of the transverse displacement of the bridge expansion joint can be flexibly adjusted according to actual needs, which is convenient for accurate monitoring and early warning of the transverse displacement of the bridge expansion joint, and is flexible, practical, and highly adaptable.

[0119] Specifically, in the embodiment of the present application, the second guide assembly has the same structure as the first guide assembly.

[0120] To explain more specifically, adjusting the overall length of the second guide assembly can adjust the alarm threshold of the transverse displacement of the beam expansion joint. The overall length of the first guide assembly and the overall length of the second guide assembly can be adjusted according to actual needs, that is, the alarm threshold of the transverse displacement of the bridge expansion joint can be flexibly adjusted.

[0121] It should be supplemented that, in the embodiment of the present application, it also includes: a third guide component 42, a fourth guide component 43, a fifth guide component 44 and a sixth guide component 45.

[0122] To be more specific, the fifth guide assembly 44 and the sixth guide assembly 45 are arranged opposite to each other.

[0123] To be more specific, the third guide assembly 42 , the fourth guide assembly 43 , the fifth guide assembly 44 and the sixth guide assembly 45 have the same structure as the first guide assembly, and each includes two catheter assemblies.

[0124] To be more specific, one end of the third guide component 42 is connected to the battery 31, the other end of the third guide component 42 is connected to the second alarm 34, the second alarm 34 is also connected to one end of the fourth guide component 43, and the other end of the fourth guide component 43 is arranged on the side of the second connecting member 9.

[0125] It should be supplemented that, in the embodiment of the present application, the columns 41 are distributed on the top and the bottom of the housing 15 .

[0126] To be more specific, one end of the fifth guide component 44 is located in the through-hole structure in the top column 41 , and the other end of the fifth guide component 44 is connected to the third alarm 35 .

[0127] To be more specific, one end of the sixth guide component 45 is located in the through-hole structure in the bottom column 41 , and the other end of the sixth guide component 45 is connected to the third alarm 35 .

[0128] It should be supplemented that, in the embodiment of the present application, a fourth conduit 40 is also included.

[0129] To be more specific, the fourth conduit 40 is connected to the fourth guide assembly 43 , and the fourth conduit 40 is located between the fourth guide assembly 43 and the second connecting member 9 .

[0130] To be more specific, the third guide assembly 42 , the fourth guide assembly 43 and the fourth conduit 40 are provided with wires connected to the battery 31 .

[0131] To be more specific, the second alarm 34 is connected to the fourth conduit 40, and the third guide assembly 42 and the fourth guide assembly 43 drive the wire of the fourth conduit 40 to approach the second conductive block 38. The wire is used to connect the working circuit of the second alarm 34 when the fourth conduit 40 is in contact with the second conductive block 38, so as to activate the third alarm 35 to issue an alarm reminder, which is convenient for accurate monitoring and early warning of the displacement of the expansion joint of the bridge along the bridge direction, and before monitoring, the overall length of the fourth guide assembly 43 and the fifth guide assembly 44 can be adjusted according to actual needs to adjust the alarm threshold of the displacement of the expansion joint of the bridge along the bridge direction, which is convenient for accurate monitoring and early warning of the displacement of the expansion joint of the bridge along the bridge direction.

[0132] It should be supplemented that, in the embodiment of the present application, the third alarm 35 is connected to the fifth guide component 44 and the sixth guide component 45 .

[0133] To be more specific, the fifth guide component 44, the sixth guide component 45 and the third alarm 35 are connected to the battery 31 through a wire, and the third digital movable ruler 17 drives the third conductive block 39 to approach the fifth guide component 44 or the sixth guide component 45. The wire of the fifth guide component 44 is used to connect the working circuit of the third alarm 35 when the third conductive block 39 contacts the fifth guide component 44, and the wire of the sixth guide component 45 is used to connect the working circuit of the third alarm 35 when the third conductive block 39 contacts the sixth guide component 45, so as to activate the third alarm 35 to issue an alarm reminder, which is convenient for accurate monitoring and early warning of the vertical displacement of the bridge expansion joint, and convenient for the staff to detect it in time, thereby improving the monitoring efficiency of the beam expansion joint. Before monitoring, the overall height of the fifth guide component 44 and the sixth guide component 45 can be adjusted according to actual needs to adjust the alarm threshold of the vertical displacement of the bridge expansion joint, which is convenient for accurate monitoring and early warning of the vertical displacement of the bridge expansion joint, and is flexible, practical and highly adaptable.

[0134] The specific operation steps or working principle of the three-dimensional displacement monitoring device for bridge expansion joints provided in this application are as follows:

[0135] When the bridge expansion joint produces a transverse relative movement, the first expansion joint 1 drives the first connection component 13, the first fixed length 2 and the first fixed length fiber grating 3 to produce a transverse movement, and the second expansion joint 12 drives the second connection component 11 to move, thereby driving the second connection member 9 to move, thereby prompting the first digital movable ruler 4 to produce a transverse displacement on the first fixed length 2, so that the transverse relative displacement can be measured, and the second catheter component 19 is used to drive the wire in the second catheter 26 to approach the conductive block, and the wire is used to connect the working circuit of the first alarm 33 when the second catheter 26 contacts the conductive block, and the first alarm 3 3 can send out remote alarm reminders through SMS, email, phone and WeChat, etc. After the working circuit of the first alarm 33 is connected, the first alarm 33 can be activated to send out an alarm reminder, which is convenient for accurate monitoring and early warning of the transverse displacement of the bridge expansion joint, which is convenient for the staff to detect in time, and improves the monitoring efficiency of the beam expansion joint. Before monitoring, the position of the second conduit 26 in the first conduit 25 can be adjusted according to actual needs, that is, the distance between the first conductive block 30 and the wire can be adjusted, and the alarm threshold of the transverse displacement of the bridge expansion joint can be flexibly adjusted according to actual needs, which is convenient for accurate monitoring and early warning of the transverse displacement of the bridge expansion joint. It is flexible and practical, and has strong adaptability. When the two sides of the bridge are relatively along the bridge During displacement, the first expansion joint 1 drives the first connection component 13, the first fixed length 2, the first connection piece 8 and the second fixed length 6 to produce horizontal displacement, and the second expansion joint 12 drives the second connection component 11, the vertical monitoring device 10 and the second connection piece 9 to produce horizontal displacement, thereby causing the second digital movable ruler 7 to produce a displacement along the bridge on the second fixed length 6, so as to realize the measurement of the relative displacement of the expansion joint of the bridge in the horizontal direction, and the third guide component 42 and the fourth guide component 43 drive the wire of the fourth guide tube 40 to approach the second conductive block 38, and the wire is used to make the second alarm 3 when the fourth guide tube 40 contacts the second conductive block 38. 4 is connected to the working circuit to activate the third alarm 35 to issue an alarm reminder, which is convenient for accurate monitoring and early warning of the displacement of the bridge expansion joint along the bridge direction, and before monitoring, the overall length of the fourth guide component 43 and the fifth guide component 44 can be adjusted according to actual needs to adjust the alarm threshold of the displacement of the bridge expansion joint along the bridge direction, which is convenient for accurate monitoring and early warning of the displacement of the bridge expansion joint along the bridge direction. When the bridge expansion joint produces vertical relative movement, the second connecting component 11 drives the third digital movable ruler 17 to move along the third fixed ruler 16 to measure the vertical relative displacement of the bridge expansion joint, and the third digital movable ruler 17 drives the third conductive block 39 to approach the fifth guide component 44 or the sixth guide component 45.The wire of the fifth guide component 44 is used to connect the working circuit of the third alarm 35 when the third conductive block 39 contacts the fifth guide component 44, and the wire of the sixth guide component 45 is used to connect the working circuit of the third alarm 35 when the third conductive block 39 contacts the sixth guide component 45, so as to activate the third alarm 35 to issue an alarm reminder, which is convenient for accurate monitoring and early warning of the vertical displacement of the bridge expansion joint, and convenient for the staff to detect it in time, thereby improving the monitoring efficiency of the beam expansion joint. Before monitoring, the overall height of the fifth guide component 44 and the sixth guide component 45 can be adjusted according to actual needs to adjust the alarm threshold of the vertical displacement of the bridge expansion joint, which is convenient for accurate monitoring and early warning of the vertical displacement of the bridge expansion joint, and is flexible, practical, and highly adaptable.

[0136] When the bridge expansion joint produces a transverse relative movement, the first connecting component 13 drives the first fixed length 2 and the first fixed length fiber Bragg grating 3 to produce a transverse movement, and the second expansion joint 12 drives the second connecting component 11 to move, thereby driving the second connecting piece 9 to move, thereby prompting the first movable-length fiber Bragg grating 5 to produce a transverse displacement on the first fixed length 2, so that the relative displacement in the transverse direction can be measured, and the charged conductive block 30 is connected to the wire to activate the first alarm 33 to issue an alarm reminder, so as to facilitate accurate monitoring and early warning of the relative transverse displacement produced on both sides of the bridge expansion joint. When the two sides of the bridge have a relative displacement in the longitudinal direction, the first connecting piece 8 drives the second fixed length 6 to produce a horizontal displacement, and the second expansion joint 12 drives the second connecting piece through the vertical monitoring device 10. 9 generates horizontal displacement, thereby prompting the second digital movable ruler 7 to generate displacement in the bridge direction on the second fixed length 6 to measure the displacement in the bridge direction. The second electrically-charged conductive group is connected to the second conducting wire to activate the second alarm 34 to issue an alarm reminder, which is convenient for accurately monitoring and warning the relative displacement in the bridge direction on both sides of the bridge expansion joint. When relative vertical displacement occurs on both sides of the bridge expansion joint, the second connecting component 11 drives the third digital movable ruler 17 to move on the third fixed length 16 to measure the vertical displacement. The electrically-charged third conductive group is connected to the third conducting wire to activate the third alarm 35 to issue an alarm reminder, which is convenient for accurately monitoring and warning the relative vertical displacement on both sides of the bridge expansion joint. It can monitor and warn the three-way displacement of the bridge expansion joint, thereby improving the monitoring efficiency of the beam expansion joint.

[0137] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A three-dimensional displacement monitoring device for a bridge expansion joint, characterized in that: include: A first expansion joint, a first fixed length, a first fixed length fiber Bragg grating, a first connecting assembly, a first digital display movable scale, a first movable scale fiber Bragg grating, a second fixed length, a second digital display movable scale, a first connecting piece, a second connecting piece, a vertical monitoring device, a second connecting assembly, and a second expansion joint; the first expansion joint is connected to the first connecting assembly; the first connecting assembly is connected to the first fixed length, and a plurality of the first fixed length fiber Bragg gratings are arranged on the first fixed length; a first opening structure is arranged on the first digital display movable scale, the first digital display movable scale is connected to the first fixed length, the first fixed length is arranged in the first opening structure, and the first movable scale fiber Bragg grating is located inside the first opening structure; One end of the first connecting member is connected to the first digital movable ruler, and the first connecting member is located on a side of the first digital movable ruler away from the first connecting assembly. The second expansion joint drives the second connecting member to move through the second connecting assembly, thereby prompting the first digital movable ruler to move along the first fixed length to measure the relative displacement in the transverse direction of the bridge expansion joint, and the other end of the first connecting member is connected to the second fixed length; the second fixed length is provided with the second digital movable ruler, and the second digital movable ruler is used to move along the second fixed length to measure the relative displacement in the longitudinal direction of the bridge expansion joint; the second connecting member is provided at the bottom of the second digital movable ruler, and the vertical monitoring device is connected to a side of the second connecting member away from the second digital movable ruler; the second connecting assembly is connected to the vertical monitoring device, and the vertical monitoring device is used to measure the vertical relative displacement of the bridge expansion joint; the second expansion joint is arranged opposite to the first expansion joint, and the second connecting assembly is connected to the inner side of the second expansion joint.

2. The device according to claim 1, characterized in that Also includes: A first guide assembly and a second guide assembly; the second guide assembly is arranged opposite to the first guide assembly, and the first guide assembly and the second guide assembly are arranged above the first fixed length; the first guide assembly includes: a first conduit assembly and a second conduit assembly; the first conduit assembly is arranged at the top of the first fixed length; The second catheter assembly is adapted to move within the first catheter assembly.

3. The device according to claim 2, characterized in that The first conduit assembly comprises: a first conduit and a rotating assembly; the first conduit is located at the top of the first fixed length; and the rotating assembly is arranged in the first conduit.

4. The device according to claim 3, characterized in that The rotating assembly includes: a fixed block, a rotating shaft, a baffle and a spring; the fixed block is arranged at the bottom of the first conduit; the rotating shaft is arranged at one end of the fixed block away from the second conduit assembly; the baffle is connected to the rotating shaft, and the baffle is an L-shaped baffle; the spring is used to connect the baffle and the first conduit.

5. The device according to claim 2, characterized in that Also includes: a first conductive block; The first conductive block is arranged on the top of the first fixed length.

6. The device according to claim 5, characterized in that The second conduit assembly includes: a second conduit, a guide rod, a guide plate and a connecting rod; one end of the second conduit is arranged on the top of the first conductive block, and the other end is connected to the guide rod; the guide rod is arranged in the second conduit; the guide plate is arranged at one end of the guide rod close to the first conduit; the connecting rod is arranged between the guide plate and the guide rod, and the connecting rod is located at the four corners of the guide plate.

7. The device according to claim 6, characterized in that Also includes: A battery, a wire and a third conduit; the battery is connected to the second fixed length, the first connecting member, the first guide assembly and the second guide assembly; The battery is used to supply power to the first digital movable ruler and the conductive block; the third conduit is connected to the battery, the first guide assembly and the second guide assembly; the wire is located in the third conduit, the first guide assembly and the second guide assembly.

8. The device according to claim 7, characterized in that Also includes: A first alarm; the first alarm is connected to the first guide assembly, the second guide assembly and the third conduit, and the first alarm is connected to the battery through the wire in the third conduit.

9. The device according to claim 8, characterized in that The second conduit assembly is used to drive the wire in the second conduit to approach the conductive block, and the wire is used to connect the working circuit of the first alarm when the second conduit contacts the conductive block.

10. The device according to claim 9, characterized in that The second guide assembly has the same structure as the first guide assembly.

Images