A bridge displacement detection device for bridge construction

Abstract

The present invention relates to the technical field of bridge displacement detection, and specifically to a bridge displacement detection device for bridge construction, comprising a plurality of mounting blocks for fixed installation at bridge detection points, a laser emitter being provided on one side of the mounting block, and a plurality of photoresistors for measuring light intensity being provided on the other side of the mounting block; a processing panel and a battery being fixedly connected inside the mounting block, a support rod being fixedly connected to the bottom of the mounting block, and irradiation pipes for shielding the laser being detachably connected on both sides of the mounting block; the processing panel being used to record and store a construction bridge model, obtain the position coordinates of each mounting block to add a monitoring point mark, and input and store the angle mark of each photoresistor; the processing panel also establishing a displacement fluctuation diagram for the current time period based on the corresponding angle mark and center distance mark; and the device is used for bridge displacement detection at multiple monitoring points, with the advantage of timely responsiveness and guaranteed measurement accuracy.

Description

Technical Field

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

[0002] During bridge construction, various factors may affect the structure, such as foundation settlement, temperature fluctuations, and construction loads. These factors can cause displacement. Displacement testing can determine whether construction quality meets requirements, understand the deformation patterns and trends of bridges, and provide strong support for safe bridge operation.

[0003] Existing bridge displacement detection methods primarily include laser ranging, total stations, sensor technology, and image detection. The total station method typically uses a level to set a reference point on a bridge tower and measure its horizontal displacement. Monitoring the longitudinal horizontal displacement of a bridge tower is accomplished by moving the reference point. Monitoring the longitudinal horizontal displacement of a bridge bridge is accomplished by measuring the elevation difference between multiple reference points. This method relies heavily on manual labor, requires extensive engineering, and is easily affected by climate, location, and time variations during observation, leading to the omission of hazardous information. Existing laser ranging and image detection methods offer the advantages of high accuracy and fast processing speed, but are both affected by weather and lighting conditions, making them inoperable in some situations. Sensor technology, on the other hand, is generally only used for localized deformations and is insufficient for monitoring the overall deformation of a bridge. Furthermore, the sensors themselves require high test accuracy and stability, which can lead to cumulative errors and reduce the credibility of the results.

[0004] Therefore, the present invention provides a bridge displacement detection device based on laser ranging, which is suitable for bridge displacement detection at multiple monitoring points and has the advantage of timely responsiveness. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides a bridge displacement detection device for bridge construction, which is used for bridge displacement detection at multiple monitoring points, has the advantages of timely responsiveness and ensures measurement accuracy.

[0006] To achieve the above-mentioned objectives, the technical solution of the present invention is as follows: a bridge displacement detection device for bridge construction, comprising a plurality of mounting blocks for fixed installation at detection points on the bridge, a laser emitter for emitting laser light fixedly connected to the center of one side of the mounting block, and a plurality of photoresistors for measuring light intensity fixedly connected to the other side of the mounting block; a processing panel and a battery fixedly connected within the mounting block, a support rod fixedly connected to the bottom of the mounting block, and irradiation pipes for shielding the laser light detachably connected to both sides of the mounting block;

[0007] The processing panel is used to record and store the construction bridge model, obtain the position coordinates of each installation block and add monitoring point marks to the construction bridge model; and record and store the angle mark of each photoresistor, and add associated marks to the corresponding monitoring point marks based on the angle mark and the preset center distance mark;

[0008] The photoresistor is used to generate a real-time current value based on the light intensity and send the real-time current value to the processing panel based on the associated tag; the processing panel establishes a displacement fluctuation graph of the current time period based on the angle tag and the center distance tag corresponding to the associated tag.

[0009] Furthermore, the photoresistors are arranged in a ring shape with the mounting block as the center, and the angles between adjacent photoresistors are the same.

[0010] Furthermore, a first fitting block is provided under the support rod, a sliding groove is provided in the first fitting block, a second fitting block is slidably fitted in the sliding groove, and the second fitting block is fixedly connected to the end of the support rod away from the mounting block;

[0011] A plurality of lenses are provided between the adjacent first bonding blocks and the second bonding blocks, and the lenses are fixedly connected to the first bonding blocks and the second bonding blocks respectively; an airbag is fixedly connected to the side of the second bonding block away from the first bonding block, and an airway is opened on the second bonding block, one end of the airway is connected to the airbag, and the other end of the airway is connected to the side of the second bonding block close to the first bonding block.

[0012] Furthermore, a plurality of clamping plates are fixedly connected to the outer edges of both sides of the mounting block, a plurality of positioning holes are opened on the clamping plates, and bolts are threadedly connected to the inner surfaces of the positioning holes.

[0013] Furthermore, a central rod is rotatably mounted on the irradiation pipe, a rotating block is fixedly connected to the top of the central rod, and a reflector for changing the direction of laser irradiation is fixedly connected to the center of the central rod, and the reflector is located inside the irradiation pipe;

[0014] A conical placement block is fixedly connected to the bottom of the central rod.

[0015] Furthermore, a plurality of air pipes are fixedly connected to the outer wall of the irradiation pipe, and an air inlet is provided at one end of the air pipe. The air inlet is located on the side of the irradiation pipe away from the placement block, and the air inlets are symmetrically arranged with the irradiation pipe as the center, and the diameter of the air inlet is larger than the diameter of the air pipe;

[0016] The air pipe is also connected to a second fan, which includes a rotating shaft that rotates with the irradiation pipe. A plurality of fan blades are fixedly connected to the rotating shaft. The second fan is located on both sides of the irradiation pipe.

[0017] Furthermore, a first fan is rotatably mounted on the center rod. The first fan is located between the irradiation pipe and the placement block. The end of the air pipe away from the air inlet passes through the center rod and is connected to the first fan. The air outlet of the first fan is located on the side of the center rod away from the placement block.

[0018] Furthermore, an antenna is fixedly connected to the top of the mounting block, and an indicator light is fixedly connected to one end of the antenna away from the mounting block.

[0019] Furthermore, the processing panel also includes a communication module, which is used to establish a communication connection between the processing panel and the outside world;

[0020] The processing panel is also used to record and store the response level of the monitoring point mark in the construction bridge model. The response level includes the response time of the time period and the edge value corresponding to the photoresistor. The processing panel also obtains the corresponding response level based on the current monitoring mark, compares the duration with the response time, and if the duration is greater than the response time, obtains the change value corresponding to the center distance mark, compares the change value with the edge value, and if the change value is greater than the edge value, sends a warning instruction to the outside world and sends a displacement fluctuation diagram for the current time period; if the change value is less than the edge value, sends a normal instruction to the outside world.

[0021] If the duration is less than the response time, a maintenance instruction is sent to the laser transmitter.

[0022] Furthermore, the processing panel is also used to calculate the difference between the peak and the trough based on the displacement fluctuation graph of the current time period, and compare the difference with the set warning value. If the difference is greater than the warning value, a warning instruction is issued to the outside world; if the difference is less than the warning value, a verification pass instruction is sent to the outside world.

[0023] The above scheme has the following beneficial effects:

[0024] 1. In this solution, the mounting block is fixed at the monitoring point of the bridge through the support rod to facilitate the confirmation of the deformation of each position of the bridge. The displacement change of the bridge drives the irradiation change of the laser emitter to confirm the displacement of the bridge at each position, thereby realizing the bridge displacement detection at multiple monitoring points.

[0025] 2. This solution shields and protects the irradiation pipe to reduce the interference of light changes caused by fog and sunny days on the laser linear irradiation process, thereby increasing the impact of the first deformation of the mounting block affected by the bridge on the laser irradiation angle, so as to play a role in timely response and thus ensure the detection accuracy of the bridge displacement.

[0026] 3. This solution uses a processing panel to compare the real-time current value generated by the photoresistor to determine the azimuth change when the bridge displacement changes, and to establish a corresponding displacement fluctuation graph to remind construction personnel to confirm whether the displacement change is caused by the construction process or the bridge itself.

[0027] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is an axonometric diagram of an embodiment of a bridge displacement detection device for bridge construction according to the present invention;

[0029] Figure 2 A top view of an embodiment of a bridge displacement detection device for bridge construction according to the present invention;

[0030] Figure 3 This is a front view of an embodiment of a bridge displacement detection device for bridge construction according to the present invention;

[0031] Figure 4 A side view of an embodiment of a bridge displacement detection device for bridge construction according to the present invention;

[0032] Figure 5 for Figure 1 Axonometric drawing of the mounting block;

[0033] Figure 6 for Figure 5 Axonometric view of the other side of the mounting block.

[0034] The figure marks in the drawings of the specification include: 1. Mounting block; 11. Laser emitter; 12. Photoresistor; 13. Clamping plate; 14. Positioning hole; 2. Irradiation pipe; 21. Center rod; 22. Reflector; 23. Rotating block; 24. Placement block; 3. Support rod; 31. First bonding block; 32. Second bonding block; 33. Airbag; 4. Antenna; 41. Indicator light; 5. Air pipe; 51. Air inlet; 52. Second fan; 53. First fan;. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0038] The following is further described in detail through specific implementation methods:

[0039] Example 1:

[0040] As attached Figures 1 to 6 The figure shows a bridge displacement detection device for bridge construction, comprising several mounting blocks 1 for fixed installation at detection points on the bridge. A laser emitter 11 for emitting laser light is secured to the center of one side of the mounting block 1. Adhesive bonded to the other side of the mounting block 1 are several photoresistors 12 for measuring light intensity. The photoresistors 12 are arranged in a ring centered around the mounting block 1, with adjacent photoresistors 12 having the same angle. A processing panel and battery (not shown) are bolted to the mounting block 1. Support rods 3 are welded to the bottom of the mounting block 1. Illumination pipes 2 for shielding the laser light are removably attached to both sides of the mounting block 1.

[0041] Several clamping plates 13 are fixedly connected to the outer edges of both sides of the mounting block 1. The clamping plates 13 are provided with several positioning holes 14, and bolts are threadedly connected to the internal threads of the positioning holes 14. A first bonding block 31 is provided below the support rod 3. A sliding groove is provided in the first bonding block 31, and a second bonding block 32 is slidably fitted within the sliding groove. The second bonding block 32 is bonded to the end of the support rod 3 away from the mounting block 1. Several lenses are provided between the adjacent first bonding blocks 31 and second bonding blocks 32, and the lenses are bonded to the first bonding blocks 31 and second bonding blocks 32, respectively. An airbag 33 is bonded to the side of the second bonding block 32 away from the first bonding block 31. An airway is provided in the second bonding block 32, one end of the airway communicating with the airbag 33 and the other end communicating with the side of the second bonding block 32 closer to the first bonding block 31.

[0042] A center rod 21 is rotatably mounted on the irradiation pipe 2, a rotating block 23 is welded to the top of the center rod 21, and a reflector 22 for changing the direction of laser irradiation is welded at the center of the center rod 21. The reflector 22 is located inside the irradiation pipe 2; a conical placement block 24 is welded to the bottom of the center rod 21.

[0043] An antenna 4 is clamped on the top of the mounting block 1 , and an indicator light 41 is adhered to the end of the antenna 4 away from the mounting block 1 . The indicator light 41 is electrically connected to the processing panel.

[0044] The processing panel is used to record and store the construction bridge model, obtain the position coordinates of each installation block 1, and add monitoring point marks to the construction bridge model; and enter and store the angle mark of each photoresistor 12, and add association marks to the corresponding monitoring point marks based on the angle mark and the center distance mark; the photoresistor 12 is used to generate a real-time current value based on the light intensity, and send the real-time current value to the processing panel based on the association mark; the processing panel establishes a displacement fluctuation graph of the current time period based on the angle mark and the center distance mark corresponding to the association mark.

[0045] The specific implementation process is as follows: First, by fixing the first bonding block 31 on the bridge in advance, the fixing methods of the first bonding block 31 in this embodiment include bolt fixing and adhesive fixing, so as to set monitoring points in advance to detect the bridge positions that need to be monitored, so as to facilitate the confirmation of the deformation conditions of various positions of the bridge, and to drive the irradiation changes of the laser emitter 11 based on the displacement changes of the bridge to confirm the displacement of the bridge at various positions, thereby realizing bridge displacement detection at multiple monitoring points.

[0046] During the process of fixing the mounting block 1, water mist is sprayed between the first bonding block 31 and the second bonding block 32, pressing the lens of the second bonding block 32 against the lens of the first bonding block 31, and the water is squeezed by pressure to use the hydraulic pressure of the water to discharge the air between the first bonding block 31 and the second bonding block 32, so that a pressure difference is formed between the outside atmosphere and the air between the adjacent first bonding block 31 and the second bonding block 32, so as to maintain the fixed clamping of the second bonding block 32 and the mounting block 1. At the same time, the liquid between the first bonding block 31 and the second bonding block 32 is shielded by the sliding groove inside the first bonding block 31, reducing the evaporation of internal water and thereby improving the fixing time. When the second bonding block 32 needs to be removed, the airbag 33 is manually pressed, so that the gas of the airbag 33 enters the adjacent first bonding block 31 and the second bonding block 32 along the airway to destroy the bonding between the first bonding block 31 and the second bonding block 32, thereby facilitating the installation and removal of the mounting block 1.

[0047] If the irradiation pipe 2 needs to be installed, the irradiation pipe 2 is placed between adjacent clamping plates 13, and the bolts are turned to press against the irradiation pipe 2 to fix the mounting block 1 and the irradiation pipe 2, so as to facilitate the disassembly and installation of the irradiation pipe 2 and the mounting block 1.

[0048] When detecting bridge displacement, a tapered placement block 24 increases the contact area between the center rod 21 and the bridge to ensure stability during the support process of the irradiation pipe 2. When the direction of the laser irradiation inside the irradiation pipe 2 needs to be adjusted, the rotation block 23 drives the center rod 21 to rotate, and the center rod 21 drives the reflector 22 to rotate to adjust the direction of the laser irradiation inside the irradiation pipe 2 to adapt to the construction needs of the curved bridge. Antenna 4 strengthens the communication connection between the processing panel and the outside world, facilitating the timely transmission of real-time current values. The indicator light 41 then displays the position of the mounting block 1, confirming the display of the indicator light 41, and facilitating maintenance and replacement of the device.

[0049] The laser emitted by the laser emitter 11 is used to irradiate the photoresistor 12. Since the angles between the photoresistors 12 are consistent, during the process of laser irradiation of the photoresistor 12, if the detection point undergoes displacement changes, the corresponding photoresistor 12 receives corresponding changes in light intensity, generating corresponding current change values ​​to the processing panel, thereby determining the corresponding bridge displacement changes. The irradiation pipe 2 is shielded and protected to reduce the interference of light irradiation changes caused by fog and sunny days at different times on the laser linear irradiation process, thereby increasing the impact of the first deformation of the mounting block 1 due to the influence of the bridge on the laser irradiation angle, thereby playing a role of timely response, and thus ensuring the detection accuracy of the bridge displacement. The real-time current value is then used to determine the azimuth change when the bridge displacement changes, so as to establish a corresponding displacement fluctuation diagram to remind the construction personnel, so as to confirm whether it is caused by the construction process or the displacement change of the bridge itself.

[0050] Example 2:

[0051] The difference from Example 1 is that a number of air pipes 5 are also bonded to the outer wall of the irradiation pipe 2, and an air inlet 51 is provided at one end of the air pipe 5. The air inlet 51 is located on the side of the irradiation pipe 2 away from the placement block 24, and the air inlet 51 is symmetrically arranged with the irradiation pipe 2 as the center, and the diameter of the air inlet 51 is larger than the diameter of the air pipe 5 (not shown in the figure); the air pipe 5 is also connected to a second fan 52, and the second fan 52 includes a rotating shaft, which rotates with the irradiation pipe 2, and a number of fan blades are welded on the rotating shaft. The second fan 52 is located on both sides of the irradiation pipe 2.

[0052] The specific implementation process is as follows: Since the bridge is located on the river surface and at a higher position, it is easy for strong winds to blow the irradiation pipe 2. When the irradiation pipe 2 is blown by the wind on one side, part of the wind first contacts the second fan 52 on one side, so that the wind is guided by the air pipe 5 and enters the air inlet 51 on the other side; part of the wind directly enters the inside of the air pipe 5 on the other side along the air inlet 51, and is guided by the air pipe 5 to blow the second fan 52 on the other side to rotate, so that the second fan 52 applies a reverse thrust to the irradiation pipe 2 to reduce the impact of the wind on one side when blowing on the irradiation pipe 2, so as to maintain the stability of the irradiation pipe 2.

[0053] Example 3:

[0054] The difference from Example 2 is that the center rod 21 is further rotatably equipped with a first fan 53. The structure of the first fan 53 is similar to that of the second fan 52 and the principle is the same. This embodiment will not be repeated. The first fan 53 is located between the irradiation pipe 2 and the placement block 24. The end of the air pipe 5 away from the air inlet 51 passes through the center rod 21 and is connected to the first fan 53. The air outlet of the first fan 53 is located on the side of the center rod 21 away from the placement block 24.

[0055] The specific implementation process is as follows: when the outside wind enters the inside of the air pipe 5 along the air inlet 51, the gas passes through the second fan 52 and the first fan 53 along the airway once to blow the blades of the first fan 53 to rotate, so that the gas moves from the air outlet of the first fan 53 to the side away from the placement block 24, so as to push the placement block 24 to move toward the direction close to the bridge, so as to improve the support stability of the center rod 21 on the irradiation pipe 2, thereby reducing the movement of the irradiation pipe 2 caused by the external wind blowing, so as to maintain the laser irradiation inside the irradiation pipe 2.

[0056] Example 4:

[0057] The difference from Example 3 is that the processing panel also includes a communication module, which is used to establish a communication connection between the processing panel and the outside world; the processing panel is also used to enter and store the response level of the monitoring point mark in the construction bridge model, and the response level includes the response time of the time period and the edge value corresponding to the photoresistor 12.

[0058] The processing panel also obtains the corresponding response level based on the current monitoring mark, compares the duration with the response time, and if the duration is greater than the response time, obtains the change value corresponding to the center distance mark, and compares the change value with the edge value. If the change value is greater than the edge value, a warning instruction is sent to the outside world, as well as a displacement fluctuation graph for the current time period; if the change value is less than the edge value, a normal instruction is sent to the outside world; if the duration is less than the response time, a maintenance instruction is sent to the laser emitter 11.

[0059] For example, different monitoring points on a bridge are located at different locations, subject to varying interference. For example, in locations subject to significant external interference, such as construction sites and locations with strong winds, vibrations generated during construction can easily be transmitted to mounting block 1, causing jitter and offset in the laser transmitter 11. Therefore, a longer comparison and reminder period is required to reduce false alarms caused by construction. For bridge locations where displacement is possible, multiple comparisons and reminders are required to determine whether the bridge has shifted, ensuring a timely response.

[0060] Example 5:

[0061] The difference from Example 4 is that the processing panel is also used to calculate the difference between the peak and the trough based on the displacement fluctuation diagram of the current time period, and compare the difference with the set warning value. If the difference is greater than the warning value, a warning instruction is issued to the outside world; if the difference is less than the warning value, a verification pass instruction is sent to the outside world.

[0062] For example, based on the position fluctuation of the monitoring point, a reminder instruction is issued to the outside world to remind construction personnel that the monitoring point has experienced strong shaking or displacement, to determine the cause of the situation, and to remind construction personnel to focus on observation and timely adjustments to ensure the safety of the bridge.

[0063] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A bridge displacement detection device for bridge construction, comprising a plurality of mounting blocks (1) for fixedly mounting on a bridge detection point, a laser emitter (11) for emitting laser light fixedly connected at the center of one side of the mounting block (1), and a plurality of photoresistors (12) for measuring light intensity fixedly connected at the other side of the mounting block (1); characterized in that: The processing panel and the battery are fixedly connected inside the mounting block (1), the bottom of the mounting block (1) is fixedly connected to a support rod (3), and both sides of the mounting block (1) are detachably connected to irradiation pipes (2) for shielding the laser; A central rod (21) is rotatably mounted on the irradiation pipe (2), a rotating block (23) is fixedly connected to the top of the central rod (21), and a reflector (22) for changing the laser irradiation direction is fixedly connected to the center of the central rod (21), and the reflector (22) is located in the irradiation pipe (2); A conical placement block (24) is fixedly connected to the bottom of the center rod (21); The outer wall of the irradiation pipe (2) is also fixedly connected to a plurality of air pipes (5), and an air inlet (51) is provided at one end of the air pipe (5). The air inlet (51) is located on a side of the irradiation pipe (2) away from the placement block (24), and the air inlet (51) is symmetrically arranged with the irradiation pipe (2) as the center. The diameter of the air inlet (51) is larger than the diameter of the air pipe (5); The air pipe (5) is also connected to a second fan (52), and the second fan (52) includes a rotating shaft, which is rotatably matched with the irradiation pipe (2), and a plurality of fan blades are fixedly connected to the rotating shaft. The second fan (52) is located on both sides of the irradiation pipe (2); A first fan (53) is also rotatably coupled to the central rod (21). The first fan (53) is located between the irradiation pipe (2) and the placement block (24). An end of the air pipe (5) away from the air inlet (51) passes through the central rod (21) and is communicated with the first fan (53). An air outlet of the first fan (53) is located on a side of the central rod (21) away from the placement block (24). The processing panel is used to record and store the construction bridge model, obtain the position coordinates of each installation block (1) and add monitoring point marks to the construction bridge model; and recording and storing the angle mark of each photoresistor (12), and adding an associated mark to the corresponding monitoring point mark based on the angle mark and the preset center distance mark; The photoresistor (12) is used to generate a real-time current value based on the light intensity, and transmit the real-time current value to the processing panel based on the associated tag; The processing panel establishes a displacement fluctuation graph of the current time period based on the angle mark and center distance mark corresponding to the associated mark.

2. The bridge displacement detection device for bridge construction according to claim 1, characterized in that: The photoresistors (12) are arranged in a ring shape with the mounting block (1) as the center, and the angles between adjacent photoresistors (12) are the same.

3. The bridge displacement detection device for bridge construction according to claim 2, characterized in that: A first fitting block (31) is provided below the support rod (3), a sliding groove is provided in the first fitting block (31), a second fitting block (32) is slidably fitted in the sliding groove, and the second fitting block (32) is fixedly connected to an end of the support rod (3) away from the mounting block (1); A plurality of lenses are provided between the adjacent first bonding block (31) and the second bonding block (32), and the lenses are fixedly connected to the first bonding block (31) and the second bonding block (32), respectively; an air bag (33) is fixedly connected to the side of the second bonding block (32) away from the first bonding block (31), and an air passage is opened on the second bonding block (32), one end of the air passage is connected to the air bag (33), and the other end of the air passage is connected to the side of the second bonding block (32) close to the first bonding block (31).

4. The bridge displacement detection device for bridge construction according to claim 3, characterized in that: A plurality of clamping plates (13) are fixedly connected to the outer edges of both sides of the mounting block (1), a plurality of positioning holes (14) are opened on the clamping plates (13), and bolts are connected to the inner threads of the positioning holes (14).

5. The bridge displacement detection device for bridge construction according to claim 4, characterized in that: The top of the mounting block (1) is fixedly connected to an antenna (4), and an end of the antenna (4) away from the mounting block (1) is fixedly connected to an indicator light (41).

6. The bridge displacement detection device for bridge construction according to claim 5, characterized in that: The processing panel also includes a communication module, which is used to establish a communication connection between the processing panel and the outside world; The processing panel is also used to input and store the response level of the monitoring point mark in the construction bridge model, and the response level includes the response time of the time period and the edge value corresponding to the photoresistor (12); the processing panel also obtains the corresponding response level based on the current monitoring mark, compares the duration with the response time, and if the duration is greater than the response time, obtains the change value corresponding to the center distance mark, compares the change value with the edge value, and if the change value is greater than the edge value, sends a warning instruction to the outside world, and sends a displacement fluctuation diagram of the current time period; if the change value is less than the edge value, sends a normal instruction to the outside world; If the duration is less than the response time, a maintenance instruction is sent to the laser transmitter (11).

7. The bridge displacement detection device for bridge construction according to claim 6, characterized in that: The processing panel is also used to calculate the difference between the peak and the trough based on the displacement fluctuation graph of the current time period, and compare the difference with the set warning value. If the difference is greater than the warning value, a warning instruction is issued to the outside world; if the difference is less than the warning value, a verification pass instruction is sent to the outside world.

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