Asphalt pavement stress monitoring device

Abstract

The invention relates to the technical field of pavement stress monitoring, in particular to an asphalt pavement stress monitoring device which comprises a fixed square body, and a protective frame is fixedly mounted at the top of the fixed square body; the monitoring protection mechanism is connected with the fixed square body, and the monitoring protection mechanism comprises a supporting frame, a monitoring part, a buffer protection assembly and a detection compensation assembly; the buffer protection assembly is connected with the fixed square body, the detection compensation assembly is connected with the buffer protection assembly, a supporting frame is further fixedly installed on the buffer protection assembly, a monitoring part is arranged on the supporting frame, and the monitoring part is arranged close to the protection frame. The monitor is prevented from being pressed and damaged, so that the accuracy of a monitoring result is ensured, convenience is provided for workers, and the monitoring result can be compensated while protection is performed.

Description

Technical Field

[0001] The invention relates to the technical field of pavement stress monitoring, in particular to an asphalt pavement stress monitoring device. Background Art

[0002] With the acceleration of urbanization and the surge in traffic volume, asphalt pavement, as the main structural material of roads, has been subjected to long-term vehicle loads, temperature changes, and stress changes caused by environmental factors, which poses a severe challenge to the overall performance and life of roads. Traditional manual detection methods can no longer meet the needs of real-time and accurate monitoring of pavement stress status. Therefore, the development and application of advanced asphalt pavement stress monitoring devices has become an inevitable trend in the industry.

[0003] The existing asphalt pavement stress monitoring device needs to bury the monitor below the ground during use to monitor the pavement stress conditions. However, long-term use, especially on roads with a large number of heavy-loaded vehicles, can easily cause the monitor to be damaged by pressure, thereby affecting the monitoring results and causing inconvenience to the staff. Moreover, if the protection method is improper, not only will it fail to play a protective role, but the protective structure will also directly affect the monitoring results, making it inconvenient to use. Therefore, in view of the above situation, there is an urgent need to develop an asphalt pavement stress monitoring device to overcome the shortcomings in current practical applications. Summary of the invention

[0004] The purpose of the present invention is to provide an asphalt pavement stress monitoring device to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: An asphalt pavement stress monitoring device, the asphalt pavement stress monitoring device comprising: A fixed square body, a protective frame being fixedly mounted on the top of the fixed square body; and a monitoring and protection mechanism, the monitoring and protection mechanism is connected to the fixed square body, wherein the monitoring and protection mechanism comprises a support frame, a monitoring part, a buffer protection component and a detection compensation component; The buffer protection component is connected to the fixed square body, the detection compensation component is connected to the buffer protection component, and a support frame is fixedly installed on the buffer protection component, a monitoring part is arranged on the support frame, and the monitoring part is arranged close to the protection frame.

[0006] As a further solution of the present invention: it also includes: a monitoring connection part, the monitoring connection part is fixedly connected to the fixed square body; and a signal controller, wherein the signal controller is fixedly mounted on the fixed square body and electrically connected to the monitoring unit.

[0007] As a further solution of the present invention: the buffer protection component includes: An annular base, the annular base is fixedly connected to the fixed square body, and a protection control rotating ring is rotatably installed in the annular base, and a driven arc-shaped tooth 1 is also arranged on the outer side wall of the protection control rotating ring; A buffer transmission gear rod, the buffer transmission gear rod is slidably connected to the fixed square body through a sliding seat, and is meshed with the driven arc-shaped tooth one, and the buffer transmission gear rod is also fixedly connected to the support frame; And a buffer transmission unit, wherein the buffer transmission unit is connected to the fixed square body and the protection control swivel respectively.

[0008] As a further solution of the present invention: it also includes: a guide slide rod, the number of the guide slide rods is two, the two guide slide rods are respectively slidably connected to the fixed square body through two slide seats, and are respectively arranged opposite to the two buffer transmission gear rods, and the guide slide rods are also fixedly connected to the support frame.

[0009] As a further solution of the present invention: the buffer transmission unit includes: Driven arc-shaped teeth 2, the number of the driven arc-shaped teeth 2 is four, and the four driven arc-shaped teeth 2 are evenly distributed on the inner side wall of the protection control rotating ring; After the rotation, the rotating body is rotationally connected with the fixed square body, and a driving gear is fixedly installed on the rotating body, and a plurality of the driving gears are respectively meshed and connected with a plurality of the driven arc-shaped teeth; and a damping module, wherein the damping module is connected to the fixed square body and meshedly connected to the driving gear; There are four groups of damping modules, which are respectively meshed and connected with the four driving gears. The four groups of damping modules form a quadrilateral structure, and the four groups of damping modules are snap-fitted and slidably connected with each other.

[0010] As a further solution of the present invention: the damping module includes: A sliding column, wherein the sliding column is fixedly mounted on the fixed square body; A sliding triangular plate, wherein the sliding triangular plate is meshed and connected with the driving gear through a driven gear plate, and is slidably connected with the adjacent sliding triangular plate by clamping, and a guide notch is also provided on the sliding triangular plate; Wherein, the sliding column is inserted into the guide slot and is slidably connected with the guide slot; A support seat, the support seat is fixedly mounted on the sliding triangle plate, and a telescopic slide rod is also fixedly mounted on the support seat, and a return spring is sleeved on the telescopic slide rod; And a guide seat, the guide seat is fixedly connected to the fixed square body, wherein the telescopic slide rod passes through the guide seat and is slidably connected to the guide seat, and the two ends of the return spring are respectively fixedly connected to the guide seat and the support seat.

[0011] As a further solution of the present invention: it also includes: an orientation detector, which is fixedly mounted on the support seat and fixedly connected to one end of the return spring.

[0012] As a further solution of the present invention: the detection compensation component includes: A sliding groove, the sliding groove is opened on the sliding triangle plate; A supplementary monitor, the supplementary monitor is fixedly mounted in the sliding groove, and a buffer spring is fixedly mounted on one end of the supplementary monitor; And a pushing slide plate, wherein the pushing slide plate is slidably connected to the sliding groove and fixedly connected to the other end of the buffer spring, and the pushing slide plate is also abutted against the adjacent sliding triangular plate.

[0013] As a further solution of the present invention: it also includes: a square limiting portion, the square limiting portion is located on the quadrilateral structure surrounded by the four groups of damping modules; And a limit warning square rod, both ends of which are fixedly connected to the fixed square body and located in the middle of the square limit part. When the monitoring part descends to the same position as the protective frame, the square limit part just contacts the side of the limit warning square rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects: When monitoring the stress condition of an asphalt pavement, first, a staff member may open a monitoring groove on the pavement, and evenly place a plurality of fixed square bodies in the monitoring groove, and adjacent fixed square bodies are connected by a monitoring connection portion (wherein, in order to consider factors such as construction cost, the number of fixed square bodies may be one or more according to actual conditions, and the fixed square bodies may be placed on the pavement where heavy-loaded vehicles frequently pass, or in areas where the pavement may be over-pressed due to other factors, while other areas may use existing detectors or strain gauges. By combining the two, it is possible to save costs while ensuring the detection results and avoiding damage to the monitoring equipment. The selection may be made according to actual conditions, and no further details are given here). Then, the monitoring groove is sealed (wherein, a corresponding baffle plate structure is provided on the fixed square body to prevent some gravel from entering the fixed square body and affecting the work of the monitoring and protection mechanism). When the asphalt pavement corresponding to the fixed square body is subjected to greater pressure, the monitoring portion will be compressed under the force transmission, and the stress of the pavement will be monitored in real time, and the monitoring results will be transmitted to the staff's terminal device through the signal controller. When the pressure exceeds the preset value, the pavement The pressure will push the monitoring part and the support frame to move downward (in normal use, the height of the support frame and the monitoring part is slightly higher than the height of the protective frame). During the downward movement of the support frame, the buffer protection component will be put into operation, thereby protecting the monitoring part and avoiding rigid contact with the road surface pressure, which may cause damage to the monitoring part. However, due to the downward movement of the monitoring part, the road surface stress monitored by it will be inaccurate. At this time, while the monitoring part is moving downward, the detection compensation component starts to work, thereby compensating for the error caused by the downward movement of the monitoring part, and sending the compensated data together with the data detected by the monitoring part to the terminal device of the staff at the same time, so as to achieve the accuracy of the monitoring results while protecting the monitoring part. When the road surface pressure continues to increase until the monitoring part drops to the same level as the protective frame, the protective frame can protect the entire equipment, thereby ensuring the safety performance of the entire equipment and avoiding the problem of needing to open grooves and replace again due to damage. The operation is simple, avoiding damage to the monitor due to pressure, thereby ensuring the accuracy of the monitoring results and providing convenience to the staff. While providing protection, the monitoring results can also be compensated, further improving the quality and effect of monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the asphalt pavement stress monitoring device in the front direction in an embodiment of the present invention.

[0016] Figure 2 It is a schematic diagram of the three-dimensional structure of the asphalt pavement stress monitoring device in the embodiment of the present invention from the rear side.

[0017] Figure 3It is a schematic cross-sectional structure diagram of a fixed square body in an embodiment of the present invention.

[0018] Figure 4 It is a schematic diagram of the three-dimensional structure of the protection control swivel in an embodiment of the present invention.

[0019] Figure 5 It is a schematic diagram of the main structure of the distribution of sliding set plates in an embodiment of the present invention.

[0020] Figure 6 It is a schematic diagram of the main structure of the sliding groove in an embodiment of the present invention.

[0021] Figure 7 Schematic diagram of the rear view structure of the orientation detector in the embodiment of the present invention.

[0022] In the figure: 1-fixed square body, 2-monitoring connection part, 3-protective frame, 4-support frame, 5-monitoring part, 6-limit warning square rod, 7-buffer transmission gear rod, 8-guide slide rod, 9-slide seat, 10-signal controller, 11-annular base, 12-protection control swivel, 13-driven arc gear one, 14-driven arc gear two, 15-driving gear, 16-sliding triangle plate, 17-square limit part, 18-guide notch, 19-sliding column, 20-after rotation, 21-driven gear plate, 22-sliding groove, 23-pushing slide plate, 24-buffer spring, 25-supplementary monitor, 26-telescopic slide rod, 27-guide seat, 28-reset spring, 29-position detector, 30-support seat. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0025] See also Figure 1-Figure 7 , an asphalt pavement stress monitoring device provided by an embodiment of the present invention, the asphalt pavement stress monitoring device comprising: A fixed square body 1, a protective frame 3 is fixedly installed on the top of the fixed square body 1; and a monitoring and protection mechanism, the monitoring and protection mechanism is connected to the fixed square body 1, wherein the monitoring and protection mechanism comprises a support frame 4, a monitoring part 5, a buffer protection component and a detection compensation component; The buffer protection component is connected to the fixed square body 1, the detection compensation component is connected to the buffer protection component, and a support frame 4 is fixedly installed on the buffer protection component, and a monitoring part 5 is arranged on the support frame 4, and the monitoring part 5 is arranged close to the protective frame 3.

[0026] See also Figure 1-Figure 7 , further comprising: a monitoring connection part 2, wherein the monitoring connection part 2 is fixedly connected to the fixed square body 1; and a signal controller 10 , wherein the signal controller 10 is fixedly mounted on the fixed square body 1 and is electrically connected to the monitoring unit 5 .

[0027] When monitoring the stress of the asphalt pavement, first, the staff can open a monitoring groove on the pavement, and evenly place a plurality of fixed square bodies 1 in the monitoring groove, and the adjacent fixed square bodies 1 are connected by the monitoring connection part 2 (wherein, in order to consider factors such as construction cost, the number of fixed square bodies 1 can be one or more according to actual conditions, and the fixed square body 1 can be placed on the road where heavy vehicles frequently pass by, or in areas where the road surface may be over-pressed due to other factors, while other areas can use existing detectors or strain gauges. By combining the two, it is possible to save costs while ensuring the detection results and avoiding damage to the monitoring equipment. The selection can be made according to actual conditions, and no further details are given here). Then, the monitoring groove is sealed (wherein, a corresponding enclosure plate structure is provided on the fixed square body 1 to prevent some gravel from entering the fixed square body 1 and affecting the work of the monitoring protection mechanism). When the asphalt pavement corresponding to the fixed square body 1 is subjected to a large pressure, the monitoring part 5 will be compressed under the force transmission, and the stress of the pavement will be monitored in real time, and the monitoring results will be transmitted to the terminal device of the staff through the signal controller 10. When the pressure exceeds the preset value, the pressure of the pavement The force will push the monitoring part 5 and the support frame 4 to move downward (in normal use, the height of the support frame 4 and the monitoring part 5 is slightly higher than the height of the protective frame 3). During the downward movement of the support frame 4, the buffer protection component will be put into operation, thereby protecting the monitoring part 5 to avoid rigid contact with the road surface pressure, which may cause damage to the monitoring part 5. However, since the monitoring part 5 moves downward, the road surface stress monitored by it will be inaccurate. At this time, while the monitoring part 5 moves downward, the detection compensation component starts to work, thereby compensating for the error generated during the downward movement of the monitoring part 5, and sending the compensated data together with the data detected by the monitoring part 5 to the terminal device of the staff at the same time, so as to achieve the accuracy of the monitoring results while protecting the monitoring part 5. When the road surface pressure continues to increase until the monitoring part 5 drops to be flush with the protective frame 3, the protective frame 3 can protect the entire equipment, thereby ensuring the safety performance of the entire equipment and avoiding the problem of needing to open the slot again due to damage. The operation is simple, the monitor is prevented from being damaged by pressure, thereby ensuring the accuracy of the monitoring results, and providing convenience to the staff. While protecting, the monitoring results can also be compensated, further improving the quality and effect of monitoring.

[0028] In one embodiment of the present invention, see Figure 1-Figure 7 , the buffer protection component comprises: An annular base 11, the annular base 11 is fixedly connected to the fixed square body 1, and a protection control swivel 12 is rotatably installed in the annular base 11, and a driven arc-shaped tooth 13 is also arranged on the outer side wall of the protection control swivel 12; The buffer transmission gear rod 7 is slidably connected to the fixed square body 1 through the slide seat 9, and is meshed with the driven arc-shaped tooth 13, and the buffer transmission gear rod 7 is also fixedly connected to the support frame 4; And a buffer transmission unit, wherein the buffer transmission unit is connected to the fixed square body 1 and the protection control swivel 12 respectively.

[0029] It also includes: a guide slide rod 8, the number of the guide slide rods 8 is two, the two guide slide rods 8 are respectively slidably connected to the fixed square body 1 through two slide seats 9, and are respectively arranged opposite to the two buffer transmission gear rods 7, and the guide slide rods 8 are also fixedly connected to the support frame 4.

[0030] The buffer transmission unit comprises: Driven arc-shaped teeth 2 14, the number of the driven arc-shaped teeth 2 14 is four, and the four driven arc-shaped teeth 2 14 are evenly distributed on the inner wall of the protection control rotating ring 12; The rotating rear 20 is rotatably connected with the fixed square body 1, and a driving gear 15 is fixedly mounted on the rotating rear 20, and a plurality of the driving gears 15 are respectively meshed and connected with a plurality of the driven arc-shaped teeth 14; and a damping module, the damping module is connected to the fixed square body 1 and meshedly connected with the driving gear 15; There are four groups of damping modules, which are respectively meshed and connected with the four driving gears 15 . The four groups of damping modules form a quadrilateral structure, and the four groups of damping modules are snap-fitted and slidably connected with each other.

[0031] The damping module comprises: A sliding column 19, wherein the sliding column 19 is fixedly mounted on the fixed square body 1; A sliding triangular plate 16, wherein the sliding triangular plate 16 is meshed and connected with the driving gear 15 through a driven gear plate 21, and is slidably connected with the adjacent sliding triangular plate 16 by clamping, and a guide notch 18 is also provided on the sliding triangular plate 16; The sliding column 19 is inserted into the guide slot 18 and is slidably connected with the guide slot 18; A support seat 30, wherein the support seat 30 is fixedly mounted on the sliding triangle plate 16, and a telescopic slide rod 26 is also fixedly mounted on the support seat 30, and a return spring 28 is sleeved on the telescopic slide rod 26; And a guide seat 27, the guide seat 27 is fixedly connected to the fixed square body 1, wherein the telescopic slide rod 26 passes through the guide seat 27 and is slidably connected to the guide seat 27, and the two ends of the return spring 28 are fixedly connected to the guide seat 27 and the support seat 30 respectively.

[0032] It also includes: an orientation detector 29 , which is fixedly mounted on the support seat 30 and fixedly connected to one end of the return spring 28 .

[0033] When the monitoring part 5 is under too much pressure, the monitoring part 5 and the support frame 4 will move downward, and will simultaneously drive the two buffer transmission gear rods 7 and the two guide slide rods 8 to move downward, thereby ensuring the stability of the support frame 4 moving downward. During the downward movement of the buffer transmission gear rod 7, the protection control rotating ring 12 can be driven to rotate in the annular base 11 through the meshing transmission effect with the driven arc-shaped tooth 1 13. During the rotation of the protection control rotating ring 12, the four driven arc-shaped teeth 2 14 will be driven to move synchronously, and the four driving gears 15 will be driven to rotate synchronously, so that the four sliding triangle plates 16 can be moved simultaneously (such as As shown in the monitoring part 5 in the figure, the square structure will gradually become smaller). In this process, the telescopic slide bar 26 will slide in the guide seat 27, and the reset spring 28 will gradually be in a compressed state. Through the elastic action of multiple reset springs 28, the overall monitoring device can be buffered. In addition, the direction of the elastic force of the reset spring 28 can be detected by the provided azimuth detector 29. For example, when the monitoring part 5 is over-pressurized, the reset spring 28 is gradually compressed, and the pressure on the azimuth detector 29 is also gradually increased. At this time, the pressure direction of the azimuth detector 29 is positive, so that the detector 29 can be detected. The pressure value obtained by the detection compensation component is summed with the pressure value monitored by the monitoring unit 5. At this time, the monitored pressure value is relatively accurate. However, during the resetting process of the sliding triangle plate 16 (for example, a heavy-loaded vehicle is followed by a lighter vehicle. At this time, the pressure on the road surface is reduced, but since the adjacent sliding triangle plates 16 have not been fully reset, if the pressure value provided by the detection compensation component is added, it may cause deviations in the monitoring results), the pressure on the azimuth detector 29 gradually decreases. At this time, it is determined that the pressure direction of the azimuth detector 29 is negative, and the pressure value obtained by the detection compensation component and the pressure value monitored by the monitoring unit 5 are sent separately to the terminal device of the staff for calculation and reference by relevant personnel. When the pressure value detected by the azimuth detector 29 is constant (at this time, the road surface may be compressed and deformed, but cannot be fully restored. At this time, the pressure value provided by the detection compensation component may be zero or may have a certain value), the pressure value obtained by the detection compensation component and the pressure value monitored by the monitoring unit 5 are also sent separately to the terminal device of the staff for calculation and reference by relevant personnel, thereby ensuring the accuracy of the monitoring structure. No further details will be given here.

[0034] In one embodiment of the present invention, see Figure 1-Figure 7 , the detection compensation component comprises: A sliding groove 22, wherein the sliding groove 22 is formed on the sliding triangle plate 16; A supplementary monitor 25, wherein the supplementary monitor 25 is fixedly mounted in the sliding groove 22, and a buffer spring 24 is fixedly mounted on one end of the supplementary monitor 25; And a pushing slide plate 23, wherein the pushing slide plate 23 is slidably connected to the sliding groove 22 and fixedly connected to the other end of the buffer spring 24, and the pushing slide plate 23 also abuts against the adjacent sliding triangular plate 16.

[0035] It also includes: a square limiting portion 17, wherein the square limiting portion 17 is located on a quadrilateral structure surrounded by four groups of damping modules; And a limit warning square rod 6, both ends of which are fixedly connected to the fixed square body 1 and are located in the middle of the square limit portion 17. When the monitoring part 5 descends to the same position as the protective frame 3, the square limit portion 17 just contacts the side of the limit warning square rod 6.

[0036] When relative sliding occurs between the plurality of sliding triangles 16, the adjacent sliding triangles 16 will squeeze and push the slide plate 23, and push the buffer spring 24 to be compressed. Finally, the supplementary monitor 25 detects the displacement of the sliding triangle 16, so as to determine the size of the pressure to be compensated. In addition, when the position where the monitoring part 5 is lowered is flush with the protective frame 3, the square limit part 17 just contacts the side of the limit warning square rod 6. At this time, if the pressure on the road surface continues to increase and causes a certain deformation of the protective frame 3, the support frame 4 and the monitoring part 5 will also drop a short distance. The support frame 4 will push the sliding triangle plate 16 to continue moving, so that the sliding triangle plate 16 can be pressed against the surface of the limit warning square rod 6. On the one hand, the limit warning square rod 6 can limit the sliding triangle plate 16 so that the monitoring unit 5 can detect the pressure of the road surface as much as possible. On the other hand, a sensor is provided on the limit warning square rod 6. When the limit warning square rod 6 is compressed, an alarm will be sent to the terminal device of the staff, so that the relevant staff can check the stress of the road surface as soon as possible, eliminate adverse factors in time, ensure the safe use of the equipment, and provide convenience for the staff.

[0037] It should be noted that in the present invention, unless otherwise clearly specified and limited, the terms "slide", "rotate", "fix", "have" and the like should be understood in a broad sense, for example, it can be a welding connection, a bolt connection, or an integral connection; 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An asphalt pavement stress monitoring device, characterized in that: The asphalt pavement stress monitoring device comprises: A fixed square body, a protective frame being fixedly mounted on the top of the fixed square body; and a monitoring and protection mechanism, the monitoring and protection mechanism is connected to the fixed square body, wherein the monitoring and protection mechanism comprises a support frame, a monitoring part, a buffer protection component and a detection compensation component; The buffer protection component is connected to the fixed square body, the detection compensation component is connected to the buffer protection component, and a support frame is fixedly installed on the buffer protection component, a monitoring part is arranged on the support frame, and the monitoring part is arranged close to the protection frame.

2. The asphalt pavement stress monitoring device according to claim 1, characterized in that: Also includes: A monitoring connection part, wherein the monitoring connection part is fixedly connected to the fixed square body; and a signal controller, wherein the signal controller is fixedly mounted on the fixed square body and electrically connected to the monitoring unit.

3. The asphalt pavement stress monitoring device according to claim 1 or 2, characterized in that: The buffer protection component comprises: An annular base, the annular base is fixedly connected to the fixed square body, and a protection control rotating ring is rotatably installed in the annular base, and a driven arc-shaped tooth 1 is also arranged on the outer side wall of the protection control rotating ring; A buffer transmission gear rod, the buffer transmission gear rod is slidably connected to the fixed square body through a sliding seat, and is meshed with the driven arc-shaped tooth one, and the buffer transmission gear rod is also fixedly connected to the support frame; And a buffer transmission unit, wherein the buffer transmission unit is connected to the fixed square body and the protection control swivel respectively.

4. The asphalt pavement stress monitoring device according to claim 3, characterized in that: Also includes: The guide slide rods are two in number, the two guide slide rods are respectively slidably connected to the fixed square body through two slide seats, and are respectively arranged opposite to the two buffer transmission gear rods, and the guide slide rods are also fixedly connected to the support frame.

5. The asphalt pavement stress monitoring device according to claim 3, characterized in that: The buffer transmission unit comprises: Driven arc-shaped teeth 2, the number of the driven arc-shaped teeth 2 is four, and the four driven arc-shaped teeth 2 are evenly distributed on the inner side wall of the protection control rotating ring; After the rotation, the rotating body is rotationally connected with the fixed square body, and a driving gear is fixedly installed on the rotating body, and a plurality of the driving gears are respectively meshed and connected with a plurality of the driven arc-shaped teeth; and a damping module, wherein the damping module is connected to the fixed square body and meshedly connected to the driving gear; There are four groups of damping modules, which are respectively meshed and connected with the four driving gears. The four groups of damping modules form a quadrilateral structure, and the four groups of damping modules are snap-fitted and slidably connected with each other.

6. The asphalt pavement stress monitoring device according to claim 5, characterized in that: The damping module comprises: A sliding column, wherein the sliding column is fixedly mounted on the fixed square body; A sliding triangular plate, wherein the sliding triangular plate is meshed and connected with the driving gear through a driven gear plate, and is slidably connected with the adjacent sliding triangular plate by clamping, and a guide notch is also provided on the sliding triangular plate; Wherein, the sliding column is inserted into the guide slot and is slidably connected with the guide slot; A support seat, the support seat is fixedly mounted on the sliding triangle plate, and a telescopic slide rod is also fixedly mounted on the support seat, and a return spring is sleeved on the telescopic slide rod; And a guide seat, the guide seat is fixedly connected to the fixed square body, wherein the telescopic slide rod passes through the guide seat and is slidably connected to the guide seat, and the two ends of the return spring are respectively fixedly connected to the guide seat and the support seat.

7. The asphalt pavement stress monitoring device according to claim 6, characterized in that: Also includes: An orientation detector is fixedly mounted on the support seat and is fixedly connected to one end of the return spring.

8. The asphalt pavement stress monitoring device according to claim 1, characterized in that: The detection compensation component comprises: A sliding groove, the sliding groove is opened on the sliding triangle plate; A supplementary monitor, the supplementary monitor is fixedly mounted in the sliding groove, and a buffer spring is fixedly mounted on one end of the supplementary monitor; And a pushing slide plate, wherein the pushing slide plate is slidably connected to the sliding groove and fixedly connected to the other end of the buffer spring, and the pushing slide plate is also abutted against the adjacent sliding triangular plate.

9. The asphalt pavement stress monitoring device according to claim 5, characterized in that: Also includes: A square limiting portion, wherein the square limiting portion is located on a quadrilateral structure surrounded by four groups of damping modules; And a limit warning square rod, both ends of which are fixedly connected to the fixed square body and located in the middle of the square limit part. When the monitoring part descends to the same position as the protective frame, the square limit part just contacts the side of the limit warning square rod.

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