A real-time monitoring device for bridge expansion joint displacement

Abstract

The invention discloses a real-time monitoring device for the displacement of a bridge expansion joint, relates to the field of bridges, and comprises a monitoring component, wherein an expansion joint 1 and an expansion joint 2 are arranged on the monitoring component, a bridge body is arranged on one side of the expansion joint 1 and the expansion joint 2, and a buffer component is arranged between the expansion joint 1 and the expansion joint 2. By arranging the monitoring component, the invention can monitor the displacement of the bridge expansion joint in real time on the X and Y axes, and can also monitor the displacement of multiple positions of the bridge expansion joint in real time on the Y axis, so that the monitoring error problem can be avoided by monitoring data in multiple directions and multiple positions, and at the same time, when the displacement data of the bridge expansion joint is monitored to be large, the position of the bridge expansion joint can be warned, so as to avoid vehicles passing by and avoid accidents.

Description

Technical Field

[0001] The present invention relates to the field of bridges, and in particular to a real-time monitoring device for the displacement of a bridge expansion joint. Background Art

[0002] Bridge expansion joints refer to the gaps between two adjacent beams. Bridge expansion joints are mostly set at the weak points of the beam ends, directly bearing the vehicle loads and exposed to the natural environment. Affected by a variety of complex factors, they are prone to displacement changes of varying degrees. Bridge expansion joints are an important part of bridge design, requiring that the expansion joints can shrink freely in both directions parallel and perpendicular to the axis of the bridge, and be able to adapt to the expansion and contraction changes caused by factors such as temperature, vehicle loads, humidity, shrinkage creep, etc. The displacement changes of expansion joints will affect the service life of the bridge and the realization of bridge performance. Therefore, the displacement detection of expansion joints is crucial in routine bridge inspections.

[0003] After searching, the Chinese patent publication number CN115289978B discloses a real-time monitoring device for the displacement of a bridge expansion joint. The existing monitoring device for the displacement of a bridge expansion joint is improved. By adding a displacement margin rail, a fixed vertical plate, a closing block, a telescopic block, and a storage rail, the problem of protecting the monitoring device and sealing the displacement margin rail to prevent sand and gravel from entering is effectively solved; by setting an infrared generator, an infrared receiver, and a wireless transmitter, the problem of real-time monitoring of the displacement of the expansion joint and transmitting it to the outside is effectively solved; by setting a fixed square plate, a sliding shaft, a sliding sleeve, and a buffer spring, the problem of buffering the impact force of the expansion joint displacement is effectively solved; by setting a reinforcing rib plate, a supporting vertical plate, a supporting inclined plate sliding frame, a limit rod, and a limit sleeve, the problem of effective support for the sealing block and the telescopic block is effectively achieved; by setting a sliding piston, a piston cylinder, a telescopic piston liquid valve, and an early warning box, a liquid pipe, a liquid level detection pipe, a floating plate, and a liquid level sensor, the problem of secondary enhanced monitoring of the displacement of the expansion joint is effectively solved to avoid the failure of the infrared transmitter and the problem of poor real-time monitoring effect; and the structure is simple and stable, with extremely high universality.

[0004] However, the above device has certain shortcomings in actual use. Although it can effectively solve the problem of secondary enhanced monitoring of the displacement of the expansion joint and avoid failure of the infrared transmitter, which leads to poor real-time monitoring effect, when real-time monitoring of the displacement of the expansion joint of the bridge is carried out, only real-time monitoring in a single direction can be carried out, which makes the monitoring data relatively single.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a real-time monitoring device for the displacement of a bridge expansion joint, which has the advantages of the above-mentioned technical problems and thus solves the problems in the prior art.

[0007] In order to achieve the advantages of the above technical problems, the specific technical solutions adopted by the present invention are as follows:

[0008] A real-time monitoring device for the displacement of a bridge expansion joint comprises a monitoring component, on which expansion joint one and expansion joint two are arranged, a bridge body is arranged on one side of the expansion joint one and expansion joint two, and a buffer component is arranged between the expansion joint one and expansion joint two.

[0009] Furthermore, in order to ensure the buffering effect of the bridge expansion joint, the buffer assembly includes an installation groove, which is opened on one side of expansion joint one and expansion joint two. A plurality of buffer grooves are opened inside the installation groove, and a plurality of buffer protrusions are arranged inside the buffer groove. The interior of the buffer groove is connected with a plurality of telescopic structures.

[0010] Furthermore, in order to ensure multiple buffering effects, buffer block 1 and buffer block 2 are symmetrically arranged between expansion joint 1 and expansion joint 2, and buffer block 1 is located directly above buffer block 2, and multiple buffer cavities 1 and buffer cavities 2 are opened on one side of buffer block 1 and buffer block 2, the interior of buffer cavity 1 is connected to the first elastic structure, the interior of buffer cavity 2 is connected to the second elastic structure, and the first elastic structure and the second elastic structure are adapted to buffer cavity 1 and buffer cavity 2.

[0011] Furthermore, in order to ensure real-time monitoring of the expansion joint of the bridge in multiple directions, the monitoring component includes a placement cavity one and a placement cavity two, and the placement cavity one and the placement cavity two are opened on one side of the expansion joint one and the expansion joint two, and multiple first infrared rangefinders and multiple second infrared rangefinders are arranged in the placement cavity one and the placement cavity two, and the first infrared rangefinder and the second infrared rangefinder are arranged in an alternating manner.

[0012] Furthermore, a fixing block 1 and a fixing block 2 are arranged inside the placement cavity 1 and the placement cavity 2, a first mounting seat and a second mounting seat are arranged on one side of the fixing block 1 and the fixing block 2, a first motor is installed on one side of the first mounting seat and the second mounting seat by bolts, and the output shaft of the first motor is provided with a threaded rod through a coupling.

[0013] Furthermore, one end of the threaded rod has a first mounting seat and a second mounting seat extending from the outer side to the inner side of the first mounting seat and the second mounting seat, and multiple first electric push rods are arranged on both sides of the first mounting seat and the second mounting seat. A protective block is arranged at the movable end of the first electric push rod, and a monitoring block is threadedly connected to the threaded rod, and the monitoring block is adapted to the first mounting seat and the second mounting seat.

[0014] Furthermore, in order to ensure the real-time monitoring effect of multiple bridge expansion joints, a scale is set at the upper end of the monitoring block, a displacement sensor is set directly above the monitoring block, and the displacement sensor is set at the lower end of buffer block two, and a controller is set inside cavity one.

[0015] Furthermore, in order to ensure the warning effect, the monitoring component also includes a storage groove, which is opened at the upper ends of expansion joint 1 and expansion joint 2, and a plurality of second electric push rods are arranged inside the storage groove, and an adjustment seat is arranged at the movable end of the second electric push rod, and the interior of the adjustment seat is connected to the first adjustment block, and the first adjustment block is fixedly arranged on the inner wall of the storage groove, and a scissor-type lifting frame is connected to the adjustment seat and the first adjustment block.

[0016] Furthermore, one end of the scissor-type lifting frame is connected to an adjusting gear via a rotating shaft, the adjusting gear is connected to a second adjusting block, the second adjusting block is connected to a placing rod, a third mounting seat is arranged directly below the placing rod, a second motor is installed on one side of the third mounting seat via bolts, and a winding roller is arranged on the output shaft of the second motor via a coupling.

[0017] Furthermore, one end of the winding roller extends from the outer side of the third mounting seat to the inner side of the third mounting seat, the end of the winding roller located on the inner side of the third mounting seat is connected to a warning cloth, and the interior of the storage groove is connected to a protective plate through a hinge.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) By setting up monitoring components, the displacement of the bridge expansion joint can be monitored in real time on the X and Y axes, and the displacement of multiple positions on the Y axis of the bridge expansion joint can also be monitored in real time. Therefore, data monitoring in multiple directions and multiple positions can be performed to avoid monitoring errors. At the same time, when the displacement data of the bridge expansion joint is detected to be large, an alarm can be issued on the position of the bridge expansion joint to prevent vehicles from passing by and avoid accidents.

[0020] (2) By setting up a buffer component, the expansion joint of the bridge can be buffered multiple times, thereby ensuring the service life of the expansion joint of the bridge. By setting up an auxiliary component, the displacement of the expansion joint of the bridge can be monitored in real time, thereby ensuring the real-time monitoring effect of the displacement of the expansion joint of the bridge and the accuracy of the data. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 Schematic diagram of a real-time monitoring device for bridge expansion joint displacement according to an embodiment of the present invention Figure 1 ;

[0023] Figure 2 Schematic diagram of a real-time monitoring device for bridge expansion joint displacement according to an embodiment of the present invention Figure 2 ;

[0024] Figure 3 is a structural exploded view of a real-time monitoring device for bridge expansion joint displacement according to an embodiment of the present invention;

[0025] Figure 4 This is a structural exploded view of a buffer component of a real-time monitoring device for bridge expansion joint displacement according to an embodiment of the present invention;

[0026] Figure 5 The present invention is a partial structural decomposition of a buffer component of a real-time monitoring device for bridge expansion joint displacement according to an embodiment of the present invention. Figure 1 ;

[0027] Figure 6 The present invention is a partial structural decomposition of a buffer component of a real-time monitoring device for bridge expansion joint displacement according to an embodiment of the present invention. Figure 2 ;

[0028] Figure 7 is a side sectional view of a buffer component structure of a real-time monitoring device for bridge expansion joint displacement according to an embodiment of the present invention;

[0029] Figure 8 The present invention is a partial structural decomposition of a monitoring component of a real-time monitoring device for bridge expansion joint displacement according to an embodiment of the present invention. Figure 1 ;

[0030] Fig. 9 The present invention is a partial structural decomposition of a monitoring component of a real-time monitoring device for bridge expansion joint displacement according to an embodiment of the present invention. Figure 2 ;

[0031] Fig.10 The present invention is a partial structural decomposition of a monitoring component of a real-time monitoring device for bridge expansion joint displacement according to an embodiment of the present invention. Figure 3 ;

[0032] Fig.11 The present invention is a partial structural decomposition of a monitoring component of a real-time monitoring device for bridge expansion joint displacement according to an embodiment of the present invention. Figure 4 ;

[0033] Fig.12 is a side sectional view of a monitoring component structure of a real-time monitoring device for bridge expansion joint displacement according to an embodiment of the present invention;

[0034] Fig.13 The present invention is a partial structural decomposition of a monitoring component of a real-time monitoring device for bridge expansion joint displacement according to an embodiment of the present invention. Figure 5 ;

[0035] Fig.14 It is an exploded diagram of the monitoring component structure of a real-time monitoring device for bridge expansion joint displacement according to an embodiment of the present invention;

[0036] Fig.15 The present invention is a partial structural decomposition of a monitoring component of a real-time monitoring device for bridge expansion joint displacement according to an embodiment of the present invention. Figure 6 ;

[0037] Fig.16 yes Figure 6 A schematic diagram of the enlarged structure;

[0038] Fig.17 yes Figure 6 A schematic diagram of the enlarged structure of B in FIG.

[0039] Fig.18 yes Figure 7 Schematic diagram of the C amplification structure;

[0040] Fig.19 yes Fig.10 Schematic diagram of D amplification structure;

[0041] Fig. 20 yes Fig.14 Schematic diagram of the enlarged structure of E in .

[0042] In the figure:

[0043] 1. Bridge body; 2. Expansion joint 1; 3. Expansion joint 2; 4. Buffer assembly; 401. Mounting groove; 402. Buffer protrusion; 403. Telescopic structure; 404. Buffer block 1; 405. Buffer block 2; 406. Buffer cavity 1; 407. Buffer cavity 2; 408. First elastic structure; 409. Second elastic structure; 5. Monitoring assembly; 501. Placement cavity 1; 502. Placement cavity 2; 503. First infrared rangefinder; 504. Second infrared rangefinder; 505. Fixing block 1; 506. Fixing block 2; 507. First motor; 50 8. Threaded rod; 509. First electric push rod; 510. Protection block; 511. Monitoring block; 512. Scale; 513. Displacement sensor; 514. Storage slot; 515. Second electric push rod; 516. Adjustment seat; 517. First adjustment block; 518. Scissor lift; 519. Adjustment gear; 520. Second adjustment block; 521. Placement rod; 522. Second motor; 523. Winding roller; 524. Warning cloth; 6. First mounting seat; 7. Second mounting seat; 8. Controller; 9. Third mounting seat; 10. Protection plate; 11. Buffer slot. DETAILED DESCRIPTION

[0044] To further illustrate the technical solution of the present application, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the implementation methods. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the implementation methods. With reference to these contents, ordinary technicians in this field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0045] like Figure 1 - Fig. 20 As shown, the present invention provides a technical solution: a real-time monitoring device for the displacement of a bridge expansion joint, comprising a monitoring component 5 for real-time monitoring of the expansion joint of the bridge at multiple positions of the X-axis, the Y-axis and the Y-axis, an expansion joint 1 2 and an expansion joint 2 3 are arranged on the monitoring component 5, a bridge body 1 is arranged on one side of the expansion joint 1 2 and the expansion joint 2 3, a buffer component 4 is arranged between the expansion joint 1 2 and the expansion joint 2 3, and is used for buffering the expansion joint of the bridge.

[0046] like Figure 1 - Fig. 20 As shown, the buffer assembly 4 includes a mounting groove 401, the mounting groove 401 is opened on one side of the expansion joint 1 2 and the expansion joint 2 3, and a plurality of elliptical buffer grooves 11 are opened at the upper and lower ends of the interior of the mounting groove 401, and two buffer protrusions 402 are arranged in the buffer groove 11, and the buffer protrusion 402 is made of rubber material, and a plurality of telescopic structures 403 are connected to the interior of the buffer groove 11, and the telescopic structure 403 is arranged in an X shape, and a buffer block 1 404 and a buffer block 2 405 are symmetrically arranged between the expansion joint 1 2 and the expansion joint 2 3, and the buffer block 1 404 and the buffer block 2 405 are both arranged in two sections, and the two sections of the buffer block 1 404 and the two sections of the buffer block 2 405 One side is fixedly arranged on one side of expansion joint 2 and expansion joint 3, and buffer block 1 404 is located directly above buffer block 2 405, and one side of buffer block 1 404 and buffer block 2 405 is provided with two buffer cavities 1 406 and buffer cavities 2 407, and the two buffer cavities 1 406 are symmetrically arranged, the interior of buffer cavity 1 406 is connected with a first elastic structure 408, the interior of buffer cavity 2 407 is connected with a second elastic structure 409, and the first elastic structure 408 and the second elastic structure 409 are adapted to buffer cavity 1 406 and buffer cavity 2 407, and the first elastic structure 408 and the second elastic structure 409 are both made of rubber material.

[0047] Specifically, when a vehicle passes through the bridge body 1, an impact force will be generated on the expansion joint 2 and the expansion joint 3. The impact force can be absorbed by setting the buffer groove 11 and the telescopic structure 403 and the buffer protrusion 402. The first elastic structure 408 and the second elastic structure 409 are set between the buffer block 1 404 and the buffer block 2 405. When subjected to external force, these elastic structures will be compressed, thereby further reducing the vibration transmitted to the bridge body, thereby being able to buffer multiple positions of the bridge expansion joint and ensure the service life of the bridge expansion joint.

[0048] like Figure 1 - Fig. 20 As shown, the monitoring component 5 includes a placement chamber 1 501 and a placement chamber 2 502, and the placement chamber 1 501 and the placement chamber 2 502 are opened on one side of the expansion joint 1 2 and the expansion joint 2 3, and three first infrared rangefinders 503 and two second infrared rangefinders 504 are arranged in the placement chamber 1 501 and the placement chamber 2 502, and the first infrared rangefinders 503 and the second infrared rangefinders 504 are arranged in a staggered manner, and a fixing block 1 505 and a fixing block 2 506 are arranged inside the placement chamber 1 501 and the placement chamber 2 502, and a first mounting seat 6 and a second mounting seat 7 are arranged on one side of the fixing block 1 505 and the fixing block 2 506, and a first motor 507 is installed on one side of the first mounting seat 6 and the second mounting seat 7 by bolts, and the output shaft of the first motor 507 is provided with a threaded rod 508 through a coupling, and the threaded rod 508 One end of the first mounting seat 6 and the second mounting seat 7 has an outer side extending to the inner side of the first mounting seat 6 and the second mounting seat 7, and a plurality of first electric push rods 509 are arranged on both sides of the first mounting seat 6 and the second mounting seat 7, and a protective block 510 is arranged on the movable end of the first electric push rod 509, and a monitoring block 511 is threadedly connected to the threaded rod 508, and the monitoring block 511 is adapted to the first mounting seat 6 and the second mounting seat 7, and a scale 512 is arranged on the upper end of the monitoring block 511, and a displacement sensor 513 is arranged just above the monitoring block 511, and the displacement sensor 513 is arranged at the lower end of the buffer block 2 405, and a controller 8 is arranged inside the placement cavity 1 501, and a remote control module, a remote data transmission module, a remote control module, and a real-time control module are arranged in the controller 8 for control and data transmission;

[0049] The monitoring assembly 5 also includes a storage groove 514, which is staggered at the upper ends of the expansion joint 1 2 and the expansion joint 2 3. A plurality of second electric push rods 515 are arranged inside the storage groove 514, and an adjustment seat 516 is arranged at the movable end of the second electric push rod 515. The adjustment seat 516 is connected to the inside of the first adjustment block 517, and the first adjustment block 517 is fixedly arranged on the inner wall of the storage groove 514. A scissor-type lifting frame 518 is connected to the adjustment seat 516 and the first adjustment block 517. One end of the scissor-type lifting frame 518 is connected to an adjustment gear 519 through a rotating shaft, and the adjustment gear 519 is connected to the second adjustment block 520, a placing rod 521 is connected to the second adjustment block 520, a third mounting seat 9 is arranged directly below the placing rod 521, a second motor 522 is installed on one side of the third mounting seat 9 by bolts, a winding roller 523 is arranged on the output shaft of the second motor 522 through a coupling, one end of the winding roller 523 extends from the outer side of the third mounting seat 9 to the inner side of the third mounting seat 9, and a warning cloth 524 is connected to one end of the winding roller 523 located on the inner side of the third mounting seat 9. When actually used, a warning word or warning mark is arranged on the warning cloth 524, and a protective plate 10 is connected to the inside of the storage slot 514 by a hinge;

[0050] The first infrared rangefinder 503, the second infrared rangefinder 504, the displacement sensor 513, the first electric push rod 509, the second electric push rod 515, the first motor 507, and the second motor 522 are all electrically connected to the controller 8, and are also electrically connected to an external power supply.

[0051] Specifically, when a vehicle passes through the bridge body 1 and generates an impact force on the expansion joint 1 2 and the expansion joint 2 3, the three first infrared rangefinders 503 and the two second infrared rangefinders 504 and the first electric push rod 509 are turned on through the controller 8, and the moving end of the first electric push rod 509 drives the protective block 510 to move from both sides to the middle and then contact each other, so that the gap between the expansion joint 1 2 and the expansion joint 2 3 can be in a non-expanded state, and then the monitoring light waves are emitted from one side of the expansion joint 1 2 and the expansion joint 2 3 through the three first infrared rangefinders 503 and the two second infrared rangefinders 504. When the light waves encounter the expansion joint 1 2 and the expansion joint 2 3, they are reflected back and received by the receiver of the device. The light waves will produce a phase change in the round trip process. Therefore, the distance between the expansion joint 1 2 and the expansion joint 2 3 and the device can be determined by measuring this phase change. The calculation formula is: distance = (wavelength / 2) × (phase difference / 360°), and then determine the gap between the expansion joint 1 2 and the expansion joint 2 3, and monitor the gap between the expansion joint 1 2 and the expansion joint 2 3 in real time in the X-axis direction. After the lateral X-axis monitoring, the first motor 507 and the displacement sensor 513 are turned on by the controller 8, and then the output shaft of the first motor 507 drives the threaded rod 508 to rotate, and then drives the monitoring block 511 to move inside the first mounting seat 6 and the second mounting seat 7, and then the scale 512 data on the monitoring block 511 is monitored by the displacement sensor 513, that is, when the expansion joint 1 2 and the expansion joint 2 3 are displaced by the downward pressure of the vehicle, the displacement sensor 513 is also driven to move. The bridge expansion joint is moved, and then the scale 512 value on the monitoring block 511 is used for monitoring (when the expansion joint 1 2 and the expansion joint 2 3 do not generate displacement, the value monitored by the displacement sensor 513 is zero, and when the expansion joint 1 2 and the expansion joint 2 3 generate displacement with the displacement sensor 513, the value changes), and then the displacement information data of the monitoring X and Y axes are remotely transmitted through the controller 8, so that the displacement of the bridge expansion joint can be monitored in real time on the X and Y axes, and the displacement of multiple positions of the bridge expansion joint Y axis can also be monitored in real time, so that the data of multiple directions and multiple positions can be monitored, and the monitoring error problem can be avoided;

[0052] If it is monitored that the displacement of expansion joint 1 2 and expansion joint 2 3 exceeds the normal range, the controller 8 will start the second electric push rod 515, and then the moving end of the second electric push rod 515 will push the adjustment seat 516 to rise, thereby driving the scissor-type lifting frame 518 in the telescopic state to unfold, that is, the first adjustment block 517, the scissor-type lifting frame 518, the adjustment gear 519, and the second adjustment block 520 cooperate with each other to unfold it. During the unfolding process, the second motor 522 is started by the controller 8, and then the output shaft of the second motor 522 drives the winding roller 523 to rotate, so that the rolled-up warning cloth 524 can be unfolded. After the scissor-type lifting frame 518 is unfolded, it will pull the warning cloth 524 to be released from the winding roller 523, so that it moves from bottom to top in the storage slot 514, and the protective plate 10 is opened to remind vehicles and personnel that they are prohibited from passing until the maintenance personnel arrive at the scene to deal with the problem.

[0053] In summary, with the help of the above technical solution of the present invention, when a vehicle passes through the bridge body 1, an impact force will be generated on the expansion joint 1 2 and the expansion joint 2 3. The buffer groove 11 and the telescopic structure 403 and the buffer protrusion 402 can absorb this impact force. The first elastic structure 408 and the second elastic structure 409 are arranged between the buffer block 1 404 and the buffer block 2 405. When subjected to external force, these elastic structures will be compressed, thereby further reducing the vibration transmitted to the bridge body, thereby being able to perform buffering treatment on multiple positions of the bridge expansion joint and ensuring the service life of the bridge expansion joint;

[0054] When a vehicle passes through the bridge body 1 and generates an impact force on the expansion joint 1 2 and the expansion joint 2 3, the three first infrared rangefinders 503 and the two second infrared rangefinders 504 and the first electric push rod 509 are turned on through the controller 8, and the moving end of the first electric push rod 509 drives the protective block 510 to move from both sides to the middle and then contact each other, so that the gap between the expansion joint 1 2 and the expansion joint 2 3 can be in a non-expanded state, and then the monitoring light waves are emitted from one side of the expansion joint 1 2 and the expansion joint 2 3 through the three first infrared rangefinders 503 and the two second infrared rangefinders 504. When the light waves encounter the expansion joint 1 2 and the expansion joint 2 3, they are reflected back and received by the receiver of the device. The light waves will produce a phase change in the round trip process. Therefore, the distance between the expansion joint 1 2 and the expansion joint 2 3 and the device can be determined by measuring this phase change. The calculation formula is: distance = (wavelength / 2) × (phase difference / 360°), and then determine the gap between the expansion joint 1 2 and the expansion joint 2 3, and monitor the gap between the expansion joint 1 2 and the expansion joint 2 3 in real time in the X-axis direction. After the lateral X-axis monitoring, the first motor 507 and the displacement sensor 513 are turned on by the controller 8, and then the output shaft of the first motor 507 drives the threaded rod 508 to rotate, and then drives the monitoring block 511 to move inside the first mounting seat 6 and the second mounting seat 7, and then the scale 512 data on the monitoring block 511 is monitored by the displacement sensor 513, that is, when the expansion joint 1 2 and the expansion joint 2 3 are displaced by the downward pressure of the vehicle, the displacement sensor 513 is also driven to move. The bridge expansion joint is moved, and then the scale 512 value on the monitoring block 511 is used for monitoring (when the expansion joint 1 2 and the expansion joint 2 3 do not generate displacement, the value monitored by the displacement sensor 513 is zero, and when the expansion joint 1 2 and the expansion joint 2 3 generate displacement with the displacement sensor 513, the value changes), and then the displacement information data of the monitoring X and Y axes are remotely transmitted through the controller 8, so that the displacement of the bridge expansion joint can be monitored in real time on the X and Y axes, and the displacement of multiple positions of the bridge expansion joint Y axis can also be monitored in real time, so that the data of multiple directions and multiple positions can be monitored, and the monitoring error problem can be avoided;

[0055] If it is monitored that the displacement of expansion joint 1 2 and expansion joint 2 3 exceeds the normal range, the controller 8 will start the second electric push rod 515, and then the moving end of the second electric push rod 515 will push the adjustment seat 516 to rise, thereby driving the scissor-type lifting frame 518 in the telescopic state to unfold, that is, the first adjustment block 517, the scissor-type lifting frame 518, the adjustment gear 519, and the second adjustment block 520 cooperate with each other to unfold it. During the unfolding process, the second motor 522 is started by the controller 8, and then the output shaft of the second motor 522 drives the winding roller 523 to rotate, so that the rolled-up warning cloth 524 can be unfolded. After the scissor-type lifting frame 518 is unfolded, it will pull the warning cloth 524 to be released from the winding roller 523, so that it moves from bottom to top in the storage slot 514, and the protective plate 10 is opened to remind vehicles and personnel that they are prohibited from passing until the maintenance personnel arrive at the scene to deal with the problem.

[0056] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A real-time monitoring device for bridge expansion joint displacement, comprising a monitoring component (5), characterized in that: The monitoring component (5) is provided with an expansion joint 1 (2) and an expansion joint 2 (3), a bridge body (1) is provided on one side of the expansion joint 1 (2) and the expansion joint 2 (3), and a buffer component (4) is provided between the expansion joint 1 (2) and the expansion joint 2 (3); The buffer assembly (4) comprises a mounting groove (401), the mounting groove (401) being arranged on one side of the expansion joint 1 (2) and the expansion joint 2 (3), a plurality of buffer grooves (11) being arranged inside the mounting groove (401), a plurality of buffer protrusions (402) being arranged inside the buffer groove (11), a plurality of telescopic structures (403) being connected inside the buffer groove (11), a buffer block 1 (404) and a buffer block 2 (405) being symmetrically arranged between the expansion joint 1 (2) and the expansion joint 2 (3), and the buffer block 1 (404) and the ... are symmetrically arranged between the expansion joint 1 (2) and the expansion joint Punch block 1 (404) is located directly above buffer block 2 (405); a plurality of buffer cavities 1 (406) and buffer cavities 2 (407) are provided on one side of buffer block 1 (404) and buffer block 2 (405); a first elastic structure (408) is connected inside buffer cavity 1 (406); a second elastic structure (409) is connected inside buffer cavity 2 (407); and the first elastic structure (408) and the second elastic structure (409) are adapted to buffer cavity 1 (406) and buffer cavity 2 (407); The monitoring assembly (5) comprises a placement chamber 1 (501) and a placement chamber 2 (502), wherein the placement chamber 1 (501) and the placement chamber 2 (502) are arranged on one side of the expansion joint 1 (2) and the expansion joint 2 (3), wherein a plurality of first infrared rangefinders (503) and a plurality of second infrared rangefinders (504) are arranged in the placement chamber 1 (501) and the placement chamber 2 (502), and the first infrared rangefinders (503) and the second infrared rangefinders (504) are arranged in an alternating manner, wherein a fixing block 1 (505) and a fixing block 2 (506) are arranged inside the placement chamber 1 (501) and the placement chamber 2 (502), wherein a first mounting seat (6) and a second mounting seat (7) are arranged on one side of the fixing block 1 (505) and the fixing block 2 (506), wherein a first motor (507) is installed on one side of the first mounting seat (6) and the second mounting seat (7) by bolts, and the first motor (507) ) is provided with a threaded rod (508) through a coupling, one end of the threaded rod (508) extends from the outside of the first mounting seat (6) and the second mounting seat (7) to the inside of the first mounting seat (6) and the second mounting seat (7), a plurality of first electric push rods (509) are provided on both sides of the first mounting seat (6) and the second mounting seat (7), a protective block (510) is provided at the movable end of the first electric push rod (509), a monitoring block (511) is threadedly connected to the threaded rod (508), and the monitoring block (511) is adapted to the first mounting seat (6) and the second mounting seat (7), a scale (512) is provided at the upper end of the monitoring block (511), a displacement sensor (513) is provided directly above the monitoring block (511), and the displacement sensor (513) is provided at the lower end of the second buffer block (405), and a controller (8) is provided inside the placement cavity (501).

2. A real-time monitoring device for bridge expansion joint displacement according to claim 1, characterized in that: The monitoring component (5) further comprises a storage groove (514), wherein the storage groove (514) is opened at the upper ends of the expansion joint 1 (2) and the expansion joint 2 (3), wherein a plurality of second electric push rods (515) are arranged inside the storage groove (514), wherein the movable end of each of the second electric push rods (515) is provided with an adjustment seat (516), wherein the adjustment seat (516) is internally connected with a first adjustment block (517), and the first adjustment block (517) is fixedly arranged on the inner wall of the storage groove (514), and a scissor-type lifting frame (518) is connected to the adjustment seat (516) and the first adjustment block (517).

3. A real-time monitoring device for bridge expansion joint displacement according to claim 2, characterized in that: One end of the scissor-type lifting frame (518) is connected to an adjusting gear (519) via a rotating shaft, the adjusting gear (519) is connected to a second adjusting block (520), the second adjusting block (520) is connected to a placing rod (521), a third mounting seat (9) is arranged directly below the placing rod (521), a second motor (522) is mounted on one side of the third mounting seat (9) via bolts, and a winding roller (523) is arranged on the output shaft of the second motor (522) via a coupling.

4. A real-time monitoring device for bridge expansion joint displacement according to claim 3, characterized in that: One end of the winding roller (523) extends from the outside of the third mounting seat (9) to the inside of the third mounting seat (9), one end of the winding roller (523) located inside the third mounting seat (9) is connected to a warning cloth (524), and the interior of the storage slot (514) is connected to a protective plate (10) via a hinge.

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