A prestressed stress detection system for bridge engineering supervision

Abstract

The present invention provides a prestressed stress detection system for bridge engineering supervision, comprising a casing, wherein a moving mechanism, a reinforcing mechanism, a photovoltaic mechanism, a level detection mechanism, a cleaning mechanism, a stress detection mechanism and a marking mechanism are arranged in the casing; the present invention can automatically detect prestressed stress on the bridge ground, detect the level of the road surface and mark the parts that do not meet the quality standards, thereby greatly improving the quality inspection efficiency of the bridge in the project and reducing labor costs; the device is moved by an electric crawler and the images of the device during the driving process are transmitted back to a control center through a first camera, which is convenient for workers to operate the device to work; the prestressed stress of the bridge is detected by an acoustic wave detector and the detection images are transmitted back to the control center through a camera, which is convenient for workers to observe the ground; the ground flatness of the bridge ground is detected by a rolling ball, which increases the practicability of the device.

Description

Technical Field

[0001] The invention relates to the technical field of bridge prestress detection, in particular to a prestress detection system for bridge engineering supervision. Background Art

[0002] Bridge safety is a key issue related to national security, people's lives and property safety. With the development of the economy, bridge construction has become more frequent and the scale of construction has become larger and larger. Due to various reasons, the frequency of bridge accidents has become higher and higher in recent years. The factors causing bridge accidents are also more complicated. Some of them are due to bridge design and construction problems, and some of them are due to the long service life of bridges. Bridges need to bear loads for a long time, and bridge materials inevitably age and damage. The existing bridge prestressing detection equipment has the following defects:

[0003] First, the existing detection equipment usually uses manual inspection, but the labor cost of manual inspection is too high, and the detection results are limited by the individual level of the human, so it is difficult to obtain stable detection results. In addition, it is impossible to detect bridges in real time and predict the risk of cracks in bridges. Increasing the inspection frequency may be able to detect the risk of bridge cracks in time, but the detection cost will further increase;

[0004] Second, with the development of society, the length of bridges is increasing, and there are often a large number of long bridges such as cross-sea bridges, which greatly increases the workload of workers when conducting prestress testing on bridges;

[0005] Third, when a bridge is delivered, it is often necessary to inspect the flatness of the ground. Existing inspection equipment cannot inspect the flatness of the bridge ground while inspecting the prestress of the bridge ground, which reduces the efficiency of bridge inspection and increases the time for bridge delivery.

[0006] Fourth, after the construction of the bridge is completed, there are usually a lot of broken stones left on the ground, which will affect the driving of vehicles after the bridge is opened, and workers are required to clean the bridge ground, which greatly increases labor costs. Summary of the invention

[0007] The object of the present invention is to provide a prestressed stress detection system for bridge engineering supervision, so as to overcome the above-mentioned defects in the prior art.

[0008] A prestress detection system for bridge engineering supervision according to the present invention comprises a housing, and a moving mechanism for driving the housing to move and having a symmetrical front-to-back position is installed on the front and rear sides of the housing;

[0009] A top block is fixedly arranged on the top wall of the housing, a first camera is installed on the right side wall of the top block, a lifting slot opening upward is arranged in the top wall of the top block, a first limit block is fixedly arranged in the lifting slot, and an enhancement mechanism for enhancing wireless signal transmission is arranged in the first limit block;

[0010] A photovoltaic mechanism for generating photovoltaic power using solar energy is provided on the top wall of the top block;

[0011] A sliding cavity is provided in the left wall of the top block on the left side of the first limit block, and a level detection mechanism is provided in the sliding cavity to detect whether the bridge ground is level;

[0012] The bottom wall of the housing has a cavity, and the right side wall of the housing on the right side of the cavity is provided with a cleaning mechanism for cleaning small stones remaining on the bridge ground;

[0013] A stress detection mechanism for detecting the prestress of the bridge is provided in the bottom wall of the casing on the left side of the cavity;

[0014] A marking cavity opening downward is provided in the bottom wall of the casing on the left side of the stress detection mechanism, and a marking mechanism for marking cracks on the bridge ground and uneven ground is provided in the marking cavity.

[0015] Preferably, the moving mechanism comprises a first electric crawler mounted on the front and rear side walls of the casing, and a second electric crawler symmetrically positioned on the left and right sides of the two first electric crawlers is mounted on one end away from the casing.

[0016] In this way, it can be applied to bridges in different environments, increasing the automation of the equipment and improving the detection efficiency.

[0017] Preferably, the reinforcing mechanism includes a first antenna slidably connected to the lifting slot and passing through the first limit block, a first rack is fixedly provided on the front side wall of the first antenna, a first motor is fixedly provided in the right side wall of the first limit block, a first rotating shaft is installed on the first motor, a first rotating shaft is fixedly provided with a first gear meshing with the first rack, left and right side walls of the upper end of the first antenna are fixedly provided with fixed blocks with symmetrical left and right positions, and a second antenna is hingedly connected to the front side wall of the fixed block.

[0018] In this way, the actual control range of the equipment can be increased, avoiding the situation where some bridges are too long and the equipment is out of the communication range.

[0019] Preferably, the photovoltaic mechanism includes an annular rack fixedly mounted on the top wall of the top block, a bracket is slidably connected to the top wall of the top block, a second motor is fixedly mounted in the bottom plate of the bracket, a second rotating shaft is mounted on the second motor, a second gear meshing with the annular rack is fixedly mounted on the second rotating shaft, a solar panel is hingedly connected to the top wall of the bracket, a first hydraulic cylinder is fixedly mounted in the side wall of the bracket close to the solar panel, and the first hydraulic cylinder is mounted with a first telescopic rod hingedly connected to the left side wall of the solar panel.

[0020] In this way, photovoltaic power generation can be utilized, increasing the battery life of the device.

[0021] Preferably, the horizontal detection mechanism includes a sliding groove fixedly arranged in the bottom wall of the sliding cavity, pressure-sensitive sensors with left and right symmetrical positions are installed on the left and right side walls of the sliding groove, a ball is slidably connected to the sliding groove between the two pressure-sensitive sensors, an electronic scale is fixedly arranged on the top wall of the sliding cavity, a slider symmetrically arranged with respect to the front and rear positions of the ball is slidably connected to the bottom wall of the sliding cavity, a pointer sensing the electronic scale is fixedly arranged on the top wall of the slider, and a first spring is fixedly connected between the side walls of the two sliders away from the ball and the front and rear side walls of the sliding cavity.

[0022] In this way, the flatness of the bridge ground can be detected to avoid large accumulation of water due to uneven ground on rainy days.

[0023] Preferably, the cleaning mechanism includes a third motor fixedly arranged in the right bottom wall of the casing and symmetrically positioned front to back, the third motor is equipped with a third rotating shaft facing downward and penetrating the bottom wall of the casing, a cleaning wheel is installed at the lower end of the third rotating shaft below the bottom wall of the casing, a stone suction pipe is fixedly arranged in the bottom wall of the casing between the two cleaning wheels, the upper end of the stone suction pipe is connected with the cavity, a vacuum cleaner is installed in the stone suction pipe, a collecting shell is fixedly arranged on the lower end of the stone suction pipe at the lower end of the bottom wall of the casing, a collecting tank with an opening facing right is provided in the collecting shell, and the stone suction pipe is connected with the collecting tank.

[0024] In this way, the ground can be cleaned while being inspected, thus improving work efficiency.

[0025] Preferably, the stress detection mechanism includes a second hydraulic cylinder fixedly mounted in the bottom wall of the casing, the second hydraulic cylinder is equipped with a second telescopic rod pointing downward and penetrating the bottom wall of the casing, an acoustic wave detector is installed at the lower end of the second telescopic rod, an illumination lamp is fixedly mounted on the bottom wall of the casing on the right side of the acoustic wave detector, and a second camera is installed on the bottom wall of the casing on the left side of the acoustic wave detector.

[0026] In this way, the detector can be raised or lowered, avoiding damage to the detector caused by long-term scratching between the detector and the ground.

[0027] Preferably, the marking mechanism includes a second limit block fixed in the marking cavity, a first connecting rod slidably connected to the second limit block, which is symmetrical in left and right positions and passes through the upper and lower side walls of the second limit block, a second spring is fixedly connected between the upper end of the first connecting rod and the top wall of the marking cavity, an electric marking disk of different colors is installed at the lower end of the first connecting rod, a second connecting rod is hinged between the two first connecting rods, a fourth motor is fixedly provided on the rear side wall of the marking cavity between the two first connecting rods, a fourth forward rotating shaft is installed on the fourth motor, and the fourth rotating shaft is fixedly connected to the rear side wall of the second connecting rod.

[0028] In this way, the locations where the ground is uneven or cracked can be marked, making it easier for workers to re-construct the ground later.

[0029] The beneficial effects of the present invention are:

[0030] The present invention can automatically detect prestress and road surface level on the bridge ground and mark the parts that do not meet the quality standards through the moving mechanism, the strengthening mechanism, the photovoltaic mechanism, the level detection mechanism, the cleaning mechanism, the stress detection mechanism and the marking mechanism, which greatly improves the quality inspection efficiency of the bridge in the project and reduces the labor cost.

[0031] The present invention drives the equipment to move by means of an electric crawler and transmits images of the equipment during its travel back to a control center through a first camera, which facilitates workers to operate the equipment to work, avoids the need for manual prestress detection of the bridge, and reduces labor costs;

[0032] The present invention drives the acoustic wave detector through the hydraulic cylinder to perform prestress detection on the bridge, and uses the camera to shoot the ground detected by the acoustic wave detector, and transmits the ground picture back to the control center, so that the workers can observe the ground.

[0033] The present invention allows the ball to roll in the sliding groove and push the pointer to slide on the electronic scale. The ground flatness of the bridge ground is detected while the device is moving, thereby avoiding the occurrence of a large number of uneven areas on the bridge ground, which may cause a large amount of water accumulation on rainy days and affect vehicle driving.

[0034] The present invention can increase the range of device signal reception by driving the first and second antennas to move up and down by a motor, expand the actual control range of the device, and avoid that some bridges are too long and the device is beyond the communication range. The cleaning wheel can clean the ground while the device is moving, avoiding the large amount of broken stones remaining on the bridge, which requires workers to clean the bridge later.

[0035] The present invention drives the electric marking disk to move up and down through a motor, and marks the unexpressed prestressed parts of the bridge and the uneven ground surface of the bridge with different colors through two electric marking disks of different colors, so as to facilitate the later workers to repair and renovate the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the appearance of the present invention;

[0037] Figure 2 It is a schematic diagram of the overall structure of a prestressed stress detection system for bridge engineering supervision of the present invention;

[0038] Figure 3 The present invention Figure 2 Schematic diagram of the middle top block;

[0039] Figure 4 The present invention Figure 2 Schematic diagram of the photovoltaic mechanism;

[0040] Figure 5 The present invention Figure 3 Schematic diagram of AA in the middle;

[0041] Figure 6 The present invention Figure 2 Schematic diagram of the middle case;

[0042] As shown in the figure:

[0043] 10. Casing; 11. First electric crawler; 12. Second electric crawler; 13. Top block; 14. Lifting slot; 15. First antenna; 16. First rack; 17. First stop block; 18. First motor; 19. First rotating shaft; 20. First gear; 21. Fixed block; 22. Second antenna; 23. First camera; 24. Ring rack; 25. Bracket; 26. Second motor; 27. Second rotating shaft; 28. Second gear; 29. ​​First hydraulic cylinder; 30. First telescopic rod; 31. Solar panel; 32. Sliding cavity; 33. Sliding slot; 34. Pressure-sensitive sensor; 35. Rolling ball; 36. Sliding block; 37. First spring; 38. Electronic scale; 3 9. pointer; 40. third motor; 41. third rotating shaft; 42. cleaning wheel; 43. cavity; 44. stone suction tube; 45. vacuum cleaner; 46. collecting shell; 47. collecting tank; 48. second hydraulic cylinder; 49. second telescopic rod; 50. acoustic wave detector; 51. lighting lamp; 52. second camera; 53. marking cavity; 54. second limit block; 55. first connecting rod; 56. electric marking disk; 57. fourth motor; 58. fourth rotating shaft; 59. second connecting rod; 60. second spring; 61. moving mechanism; 62. reinforcing mechanism; 63. photovoltaic mechanism; 64. level detection mechanism; 65. cleaning mechanism; 66. stress detection mechanism; 67. marking mechanism. DETAILED DESCRIPTION

[0044] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only simplified descriptions for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0045] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below in conjunction with embodiments:

[0046] See attached Figure 1-Figure 6 A prestressed stress detection system for bridge engineering supervision shown in the figure comprises a housing 10, and a moving mechanism 61 for driving the housing 10 to move and having a symmetrical front-to-back position is installed on the front and rear sides of the housing 10;

[0047] A top block 13 is fixedly disposed on the top wall of the housing 10, a first camera 23 is mounted on the right side wall of the top block 13, a lifting slot 14 opening upward is disposed in the top wall of the top block 13, a first limit block 17 is fixedly disposed in the lifting slot 14, and an enhancement mechanism 62 for enhancing wireless signal transmission is disposed in the first limit block 17;

[0048] A photovoltaic mechanism 63 for photovoltaic power generation using solar energy is provided on the top wall of the top block 13;

[0049] A sliding cavity 32 is provided in the left wall of the top block 13 on the left side of the first limit block 17, and a level detection mechanism 64 is provided in the sliding cavity 32 to detect whether the bridge ground is level;

[0050] The bottom wall of the housing 10 has a cavity 43, and the right side wall of the housing 10 on the right side of the cavity 43 is provided with a cleaning mechanism 65 for cleaning small stones remaining on the bridge ground;

[0051] A stress detection mechanism 66 for detecting the prestress of the bridge is provided in the bottom wall of the housing 10 on the left side of the cavity 43;

[0052] A marking cavity 53 opening downward is provided in the bottom wall of the casing 10 on the left side of the stress detection mechanism 66, and a marking mechanism 67 for marking cracks on the bridge ground and uneven ground is provided in the marking cavity 53.

[0053] Furthermore, the moving mechanism 61 includes a first electric crawler 11 installed on the front and rear side walls of the housing 10, and a second electric crawler 12 symmetrically located on the left and right sides of the two first electric crawlers 11 away from the housing 10 is installed. When the first electric crawlers 11 are started, the two first electric crawlers 11 electrically drive the housing 10 to move forward and backward. When encountering an obstacle, the four second electric crawlers 12 are started, and the second electric crawlers 12 and the first electric crawlers 11 drive the housing 10 to climb over the obstacle and move.

[0054] Furthermore, the reinforcing mechanism 62 includes a first antenna 15 slidably connected to the lifting slot 14 and passing through the first limit block 17, a first rack 16 is fixedly provided on the front side wall of the first antenna 15, a first motor 18 is fixedly provided in the right side wall of the first limit block 17, a first rotating shaft 19 is installed on the first motor 18, a first gear 20 meshing with the first rack 16 is fixedly provided on the first rotating shaft 19, fixed blocks 21 symmetrically positioned on the left and right side walls of the upper end of the first antenna 15 are fixedly provided, a second antenna 22 is hingedly connected to the front side wall of the fixed block 21, when the first motor 18 is started, the first motor 18 drives the first gear 20 to rotate through the first rotating shaft 19, and the first gear 20 drives the first antenna 15 to move up and down by meshing with the first rack 16.

[0055] Further, the photovoltaic mechanism 63 includes an annular rack 24 fixedly arranged on the top wall of the top block 13, a bracket 25 is slidably connected to the top wall of the top block 13, a second motor 26 is fixedly arranged in the bottom plate of the bracket 25, a second rotating shaft 27 is installed on the second motor 26, a second gear 28 meshing with the annular rack 24 is fixedly arranged on the second rotating shaft 27, a solar panel 31 is hingedly connected to the top wall of the bracket 25, a first hydraulic cylinder 29 is fixedly arranged in the side wall of the bracket 25 close to the solar panel 31, the first hydraulic cylinder 29 is installed with a first telescopic rod 30 hingedly connected to the left side wall of the solar panel 31, when the second motor 26 is started, the second motor 26 drives the second gear 28 to rotate through the second rotating shaft 27, the second gear 28 drives the bracket 25 to move in a circle by meshing with the annular rack 24, the bracket 25 drives the solar panel 31 to rotate in a circle, the first hydraulic cylinder 29 is started, the first telescopic rod 30 is extended and the inclination angle of the solar panel 31 is adjusted.

[0056] Furthermore, the horizontal detection mechanism 64 includes a sliding groove 33 fixedly arranged in the bottom wall of the sliding cavity 32, and pressure-sensitive sensors 34 with left and right positions symmetrically installed on the left and right side walls of the sliding groove 33, and a ball 35 is slidably connected to the sliding groove 33 between the two pressure-sensitive sensors 34, and an electronic scale 38 is fixedly arranged on the top wall of the sliding cavity 32, and a slider 36 symmetrically arranged with respect to the front and rear positions of the ball 35 is slidably connected to the bottom wall of the sliding cavity 32, and a pointer 39 sensing the electronic scale 38 is fixedly arranged on the top wall of the slider 36, and a first spring 37 is fixedly connected between the side walls of the two sliders 36 away from the ball 35 and the front and rear side walls of the sliding cavity 32. When the bridge ground is uneven, the ball 35 slides in the sliding cavity 32 and pushes the slider 36 on one side, and the slider 36 squeezes the first spring 37 and drives the pointer 39 to slide on the electronic scale 38, and the electronic scale 38 transmits the detected data back to the console.

[0057] Furthermore, the cleaning mechanism 65 includes a third motor 40 fixedly arranged in the right bottom wall of the casing 10 and symmetrically arranged in the front and rear positions, the third motor 40 is equipped with a third rotating shaft 41 facing downward and penetrating the bottom wall of the casing 10, a cleaning wheel 42 is installed at the lower end of the third rotating shaft 41 below the bottom wall of the casing 10, a stone suction pipe 44 is fixedly arranged in the bottom wall of the casing 10 between the two cleaning wheels 42, the upper end of the stone suction pipe 44 is connected to the cavity 43, a dust collector 45 is installed in the stone suction pipe 44, and the lower end of the bottom wall of the casing 10 is connected to the cavity 43. A collecting shell 46 is fixedly provided on the lower end of the stone suction pipe 44, and a collecting groove 47 with an opening facing right is provided in the collecting shell 46. The stone suction pipe 44 is connected with the collecting groove 47. When the third motor 40 is started, the third motor 40 drives the cleaning wheel 42 to rotate through the third rotating shaft 41, and the cleaning wheel 42 sweeps the stones on the ground into the collecting groove 47. The vacuum cleaner 45 is started, and the vacuum cleaner 45 sucks the stones in the collecting groove 47 and transports them to the cavity 43 through the stone suction pipe 44 for concentration.

[0058] Furthermore, the stress detection mechanism 66 includes a second hydraulic cylinder 48 fixedly arranged in the bottom wall of the casing 10, the second hydraulic cylinder 48 is equipped with a second telescopic rod 49 facing downward and penetrating the bottom wall of the casing 10, the lower end of the second telescopic rod 49 is equipped with an acoustic wave detector 50, a lighting lamp 51 is fixedly arranged on the bottom wall of the casing 10 on the right side of the acoustic wave detector 50, and a second camera 52 is installed on the bottom wall of the casing 10 on the left side of the acoustic wave detector 50. When the second hydraulic cylinder 48 is started, the second telescopic rod 49 is extended and drives the acoustic wave detector 50 to contact the ground, the lighting lamp 51 is started and illuminates the bottom of the bottom wall of the casing 10, and the second camera 52 performs real-time monitoring and shooting of the ground detected by the acoustic wave detector 50, and transmits the actual image back to the control center.

[0059] Furthermore, the marking mechanism 67 includes a second limit block 54 fixedly arranged in the marking cavity 53, a first connecting rod 55 symmetrically arranged on the left and right positions and penetrating the upper and lower side walls of the second limit block 54 is slidably connected to the second limit block 54, a second spring 60 is fixedly connected between the upper end of the first connecting rod 55 and the top wall of the marking cavity 53, an electric marking disk 56 of different colors is installed on the lower end of the first connecting rod 55, a second connecting rod 59 is hingedly connected between the two first connecting rods 55, a fourth motor 57 is fixedly arranged on the rear side wall of the marking cavity 53 between the two first connecting rods 55, a fourth rotating shaft 58 facing forward is installed on the fourth motor 57, and the fourth rotating shaft 58 is fixedly connected to the rear side wall of the second connecting rod 59, when the fourth motor 57 is started, the fourth motor 57 drives the second connecting rod 59 to rotate through the fourth rotating shaft 58, the second connecting rod 59 moves the first connecting rod 55 on one side of the left and right positions downward, and the first connecting rod 55 drives the electric marking disk 56 to move downward and mark at this position.

[0060] The prestressed steel detection system for bridge engineering supervision of the present invention has the following working process:

[0061] Initial state: the rolling ball 35 is located between the two pressure-sensitive sensors 34 and is pressed against and connected to the pressure-sensitive sensors 34;

[0062] In the first step, when the worker places the housing 10 on the bridge pavement to be inspected, the first electric crawler 11 starts and drives the housing 10 forward, the first camera 23 starts and transmits the picture of the housing 10 moving forward back to the control center, the two third motors 40 start, the third motor 40 drives the cleaning wheel 42 to rotate through the third rotating shaft 41, the cleaning wheel 42 sweeps the stones on the ground into the collecting trough 47, the vacuum cleaner 45 starts, the vacuum cleaner 45 sucks the stones in the collecting trough 47 and transports them to the cavity 43 through the stone suction pipe 44 for concentration, the second hydraulic cylinder 48 starts, the second telescopic rod 49 extends and drives the acoustic wave detector 50 to contact the ground, the first electric crawler 11 starts and illuminates the bottom of the bottom wall of the housing 10, the second camera 52 monitors and shoots the ground detected by the acoustic wave detector 50 in real time, and transmits the actual image back to the control center, the acoustic wave detector 50 generates sound waves for the ground and detects the prestress of the ground;

[0063] In the second step, when the acoustic wave detector 50 detects that the current ground prestressing is not up to standard, the first electric crawler 11 stops running, the housing 10 stays at the ground position, the fourth motor 57 starts, and the fourth motor 57 drives the second connecting rod 59 to rotate through the fourth rotating shaft 58. The second connecting rod 59 moves the first connecting rod 55 on the left side downward, and the first connecting rod 55 on the left side drives the electric marking plate 56 on the left side to move downward and mark at this position. After marking, the first electric crawler 11 starts again to perform prestressing detection on the bridge pavement ahead again.

[0064] The third step is that when the housing 10 is moving and the bridge ground is uneven, the housing 10 tilts slightly, the ball 35 is out of contact with the two pressure-sensitive sensors 34, and the ball 35 rolls. The ball 35 slides in the sliding cavity 32 and pushes the slider 36 on one side. The slider 36 squeezes the first spring 37 and drives the pointer 39 to slide on the electronic scale 38. The electronic scale 38 transmits the detected data back to the control console. When the housing 10 moves to a flat ground, the squeezed first spring 37 ejects the slider 36 to the other side through elastic force and pushes the ball 35. The ball 35 slowly rolls back between the two pressure-sensitive sensors 34 and is pressed against and connected to the pressure-sensitive sensors 34 again.

[0065] Step 4: When the bridge is long and the travel distance of the housing 10 is about to exceed the control range, the first motor 18 is started, and the first motor 18 drives the first gear 20 to rotate through the first rotating shaft 19. The first gear 20 drives the first antenna 15 to move upward by meshing with the first rack 16. The first motor 18 extends the first antenna 15 and the two second antennas 22 above the lifting slot 14. The first antenna 15 and the two second antennas 22 increase the controllable movement range of the housing 10. While the equipment is being tested, the solar panel 31 is always in working state, and the electric energy generated by the solar panel 31 is used for the power consumption of the equipment. The second motor 26 is started, and the second motor 26 drives the second gear 28 to rotate through the second rotating shaft 27. The second gear 28 drives the bracket 25 to move in a circle by meshing with the annular rack 24. The bracket 25 drives the solar panel 31 to rotate in a circle. The first hydraulic cylinder 29 is started, and the first telescopic rod 30 is extended and the tilt angle of the solar panel 31 is adjusted to keep the solar panel 31 in a state of direct sunlight at all times.

[0066] The fifth step is that when the first electric crawler 11 encounters an obstacle and cannot cross it, the four second electric crawlers 12 are started, and the second electric crawlers 12 drive the housing 10 to cross the obstacle; when the equipment completes the inspection of the bridge, the first electric crawler 11 and the second electric crawler 12 drive the housing 10 to turn and automatically move back to the control center.

[0067] The preferred specific embodiments of the present invention are described in detail above. It should be understood that those skilled in the art can clearly understand that various modifications can be made to the above embodiments without departing from the overall spirit and concept of the present invention. They all fall within the protection scope of the present invention. The protection scheme of the present invention shall be subject to the claims attached to the present invention.

Claims

1. A prestressed stress detection system for bridge engineering supervision, comprising a housing (10), characterized in that: The housing (10) is provided with a moving mechanism (61) on both the front and rear sides thereof, which drives the housing (10) to move and has a symmetrical front and rear position; A top block (13) is fixedly provided on the top wall of the housing (10), a first camera (23) is installed on the right side wall of the top block (13), a lifting slot (14) with an opening facing upward is provided in the top wall of the top block (13), a first limiting block (17) is fixedly provided in the lifting slot (14), and an enhancing mechanism (62) for enhancing wireless signal transmission is provided in the first limiting block (17); A photovoltaic mechanism (63) for generating photovoltaic power using solar energy is provided on the top wall of the top block (13); A sliding cavity (32) is provided in the left wall of the top block (13) on the left side of the first limit block (17), and a level detection mechanism (64) for detecting whether the bridge ground is level is provided in the sliding cavity (32); A cavity (43) is provided in the bottom wall of the housing (10), and a cleaning mechanism (65) for cleaning small stones remaining on the bridge floor is provided in the right side wall of the housing (10) on the right side of the cavity (43); A stress detection mechanism (66) for detecting the prestress of the bridge is provided in the bottom wall of the casing (10) on the left side of the cavity (43); A marking cavity (53) with a downward opening is provided in the bottom wall of the casing (10) on the left side of the stress detection mechanism (66), and a marking mechanism (67) for marking cracks on the bridge ground and uneven ground is provided in the marking cavity (53); The horizontal detection mechanism (64) comprises a sliding groove (33) fixedly arranged in the bottom wall of the sliding cavity (32), and pressure-sensitive sensors (34) symmetrically arranged on the left and right side walls of the sliding groove (33); a ball (35) is slidably connected to the sliding groove (33) between the two pressure-sensitive sensors (34); an electronic scale (38) is fixedly arranged on the top wall of the sliding cavity (32); a slider (36) symmetrically arranged in front and rear positions with respect to the ball (35) is slidably connected to the bottom wall of the sliding cavity (32); a pointer (39) inductively sensing the electronic scale (38) is fixedly arranged on the top wall of the slider (36); and a first spring (37) is fixedly connected between the side walls of the two sliders (36) away from the ball (35) and the front and rear side walls of the sliding cavity (32).

2. A prestressed stress detection system for bridge engineering supervision according to claim 1, characterized in that: The moving mechanism (61) comprises a first electric crawler (11) mounted on the front and rear side walls of the housing (10), and a second electric crawler (12) symmetrically positioned left and right is mounted on one end of the first electric crawler (11) away from the housing (10).

3. The prestress detection system for bridge engineering supervision according to claim 1 is characterized in that: The reinforcing mechanism (62) comprises a first antenna (15) slidably connected in the lifting slot (14) and passing through the first limiting block (17); a first rack (16) is fixedly arranged on the front side wall of the first antenna (15); a first motor (18) is fixedly arranged in the right side wall of the first limiting block (17); a first rotating shaft (19) is mounted on the first motor (18); a first gear (20) meshing with the first rack (16) is fixedly arranged on the first rotating shaft (19); a fixed block (21) symmetrically arranged on the left and right side walls at the upper end of the first antenna (15); a second antenna (22) is hingedly connected to the front side wall of the fixed block (21).

4. A prestressed stress detection system for bridge engineering supervision according to claim 3, characterized in that: The photovoltaic mechanism (63) comprises an annular rack (24) fixedly arranged on the top wall of the top block (13); a bracket (25) is slidably connected to the top wall of the top block (13); a second motor (26) is fixedly arranged in the bottom plate of the bracket (25); a second rotating shaft (27) is mounted on the second motor (26); a second gear (28) meshing with the annular rack (24) is fixedly arranged on the second rotating shaft (27); a solar panel (31) is hingedly connected to the top wall of the bracket (25); a first hydraulic cylinder (29) is fixedly arranged in the side wall of the bracket (25) close to the solar panel (31); the first hydraulic cylinder (29) is mounted with a first telescopic rod (30) hingedly connected to the left side wall of the solar panel (31).

5. The prestressed stress detection system for bridge engineering supervision according to claim 1 is characterized in that: The cleaning mechanism (65) comprises a third motor (40) fixedly arranged in the right bottom wall of the casing (10) and symmetrically arranged in front and back positions; the third motor (40) is provided with a third rotating shaft (41) which is downwardly facing and passes through the bottom wall of the casing (10); a cleaning wheel (42) is installed at the lower end of the third rotating shaft (41) below the bottom wall of the casing (10); a stone suction pipe (44) is fixedly arranged in the bottom wall of the casing (10) between the two cleaning wheels (42); the upper end of the stone suction pipe (44) is communicated with the cavity (43); a dust collector (45) is installed in the stone suction pipe (44); a collecting shell (46) is fixedly arranged on the lower end of the stone suction pipe (44) at the lower end of the bottom wall of the casing (10); a collecting trough (47) with an opening facing right is provided in the collecting shell (46); the stone suction pipe (44) is communicated with the collecting trough (47).

6. A prestressed stress detection system for bridge engineering supervision according to claim 5, characterized in that: The stress detection mechanism (66) comprises a second hydraulic cylinder (48) fixedly mounted in the bottom wall of the housing (10); the second hydraulic cylinder (48) is provided with a second telescopic rod (49) pointing downward and penetrating the bottom wall of the housing (10); a sound wave detector (50) is mounted at the lower end of the second telescopic rod (49); an illuminating lamp (51) is fixedly mounted on the bottom wall of the housing (10) on the right side of the sound wave detector (50); and a second camera (52) is mounted on the bottom wall of the housing (10) on the left side of the sound wave detector (50).

7. A prestressed stress detection system for bridge engineering supervision according to claim 6, characterized in that: The marking mechanism (67) comprises a second limit block (54) fixedly arranged in the marking cavity (53); a first connecting rod (55) symmetrically arranged on the left and right sides and penetrating the upper and lower side walls of the second limit block (54) is slidably connected to the second limit block (54); a second spring (60) is fixedly connected between the upper end of the first connecting rod (55) and the top wall of the marking cavity (53); an electric marking disk (56) of different colors is installed at the lower end of the first connecting rod (55); a second connecting rod (59) is hingedly connected between the two first connecting rods (55); a fourth motor (57) is fixedly arranged on the rear side wall of the marking cavity (53) between the two first connecting rods (55); a fourth rotating shaft (58) facing forward is installed on the fourth motor (57); and the fourth rotating shaft (58) is fixedly connected to the rear side wall of the second connecting rod (59).

Images