Highway bridge flatness detection equipment

Abstract

The invention discloses highway bridge flatness detection equipment, which relates to the technical field of pavement and bridge floor detection, and comprises a carrier, and a detection assembly and a sensing control assembly which are mounted on the carrier, the carrier comprises a trailer frame, guide wheels are rotatably mounted on the trailer frame, two weight boxes are fixedly mounted on the trailer frame, two driving wheels are mounted on the trailer frame and used for driving the trailer frame to move, and a stability adjusting assembly is mounted in the middle of the trailer frame; the detection assembly is composed of a plurality of pressure sensing mechanisms. The device has the advantages that the pressure of the detection wheel in the moving process is monitored through the pressure sensor, higher precision is achieved, different road surfaces and bridge floors can be detected, the application range is wider, meanwhile, in the detection process, the detection wheel can be adjusted in a self-adaptive mode, and the influence of friction force on flatness detection is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of road surface and bridge deck detection, and particularly relates to a highway bridge flatness detection device. BACKGROUND

[0002] Highway bridge flatness detection is a core technical means for evaluating bridge deck traffic quality, predicting structural diseases and guiding maintenance and repair, and needs to be combined with macroscopic deviation measurement and microscopic defect identification to cover key areas such as bridge deck pavement layer, expansion joint and bridge head coping.

[0003] The highway bridge flatness detection method can be divided into three categories: manual detection method, contact instrument detection method and non-contact instrument detection method. The contact instrument detection method is the most commonly used method for detecting flat road surface and bridge deck. It uses a roller to roll on the road surface and bridge deck, and then uses a displacement sensor to detect the elevation of the road surface and bridge deck. There are often sand and other debris on the highway road surface. When the detection wheel acts on the sand and debris, it will also be affected by the sand and debris and will also displace. In this case, the accuracy of the detection result is difficult to guarantee. Therefore, the disclosure number CN120425631A discloses a mobile highway engineering quality detection device and method, which includes a walking support, a detection roller, a cleaning assembly, a driving assembly, an elastic support assembly and an alarm assembly. The walking support is installed with walking wheels at the bottom edge. The detection roller is arranged below the walking support. The elastic support assembly is installed on the bottom wall of the walking support to provide elastic support for the detection roller, so that the detection roller can move up and down when it rolls to the convex and concave positions of the road surface. The alarm assembly is installed on the side wall of the walking support.

[0004] The above-mentioned mobile highway engineering quality detection device can clean the sand and debris on the front side of the detection roller when the detection roller rolls along the road surface to detect the flatness of the road surface, thereby avoiding the detection roller acting on the sand and debris, and thereby improving the accuracy of the detection result.

[0005] However, the above-mentioned mobile highway engineering quality detection device and the existing detection device have the following problems in specific use. The angle change of the detection roller is passively changed by the friction with the ground. Under the action of friction, the compression amount of the detection roller increases, thereby affecting the accuracy of the flatness detection at the turning point. For the detection of the arch bridge, the detection roller is not perpendicular to the arch bridge, which reduces the pressure and makes the displacement amount of the detection roller sensed by the displacement sensor smaller, affecting the accuracy of the detection. When the displacement sensor is used on the arch bridge or the road surface, the displacement is always changing, and it is difficult to judge the flatness change.

[0006] Therefore, a new highway bridge flatness detection device can be used to solve the problems of the prior art. SUMMARY

[0007] The present application aims to solve the problems of the prior art, such as inaccurate detection and unsuitable for arch bridge decks and road surfaces, and provides a highway bridge flatness detection device.

[0008] To achieve the above-mentioned purpose, the present application adopts the following technical solutions: A highway bridge flatness detection device comprises a carrier, a detection assembly and a sensing control assembly mounted on the carrier. The carrier comprises a trailer frame, a guide wheel rotatably mounted on the trailer frame, and two counterweight boxes fixedly mounted on the trailer frame, two drive wheels mounted on the trailer frame for driving the trailer frame to move, and a stability adjusting assembly mounted at a middle position of the trailer frame. The detection assembly comprises a plurality of pressure sensing mechanisms, each of which comprises a rotating frame, a wheel frame, and two detection wheels rotatably mounted on the wheel frame, a pressure sensor fixedly connected between the rotating frame and the pressure sensor, an elastic expansion rod mounted between the wheel frame and the pressure sensor, the elastic expansion rod being fixedly connected between the wheel frame and the pressure sensor and rotatably connected between the pressure sensor, an angle adjusting structure mounted between the elastic expansion rod and the rotating frame, a levelness adjusting structure, and a pressure adjusting structure mounted between the rotating frame and the trailer frame.

[0009] Preferably, the sensing control assembly comprises a first angle sensor for detecting the horizontal inclination angle of the trailer frame and a control module for controlling the operation of the levelness adjusting structure.

[0010] Preferably, the stability adjusting assembly comprises two shock absorbers fixedly mounted on the trailer frame, a bracket fixedly mounted on the two shock absorbers, a rotating shaft rotatably mounted on the bracket, a stability adjusting wheel fixedly mounted on each end of the rotating shaft, and two pneumatic expansion rods rotatably connected between the trailer frame and the bracket.

[0011] Preferably, the trailer frame is fixedly mounted with a mounting bracket, the mounting bracket is slidably mounted with an adjusting rod, the adjusting rod is fixedly connected between the mounting bracket and the adjusting rod, a support plate is rotatably mounted on the adjusting rod, a drive motor is fixedly mounted on the support plate, the drive end of the drive motor is fixedly connected with the drive wheel, and a second angle sensor is fixedly mounted on the trailer frame for monitoring the deflection angle of the support plate.

[0012] Preferably, the angle adjusting structure comprises a fixed frame fixedly installed on the plurality of rotating frames, a guide rod slidingly installed on each of the fixed frames, a rack fixedly installed between any two adjacent guide rods, a gear fixedly installed on each of the elastic telescopic rods and engaged with the corresponding rack, and an electric push rod fixedly installed on one of the fixed frames and fixedly connected with one of the racks through a connecting block.

[0013] Preferably, the levelness adjusting structure comprises a telescopic frame, a connecting frame fixedly installed at the telescopic end of the telescopic frame, and a shaft rotatably connected between the connecting frame and the rotating frame, fixedly connected between the shaft and the rotating frame, and rotatably connected between the shaft and the connecting frame.

[0014] Preferably, the pressure adjusting structure comprises a plurality of hydraulic rods fixedly installed on the trailer frame, and an installation plate fixedly installed at the telescopic end of the plurality of hydraulic rods.

[0015] Preferably, the trailer frame is provided with a sensor for monitoring the rotating speed of the driving wheels, which cooperates with the electric push rod to change the deflection angle of the detection wheel according to the rotating speed difference between the two driving wheels.

[0016] Preferably, the guide wheel is designed as a universal wheel, and a lifting module is installed between the guide wheel and the trailer frame to change the height of the trailer frame.

[0017] Preferably, an electric control locking module is installed between the shaft and the connecting frame, which cooperates with the servo motor to lock the shaft when the servo motor stops working and unlock the shaft when the servo motor works.

[0018] Compared with the prior art, the present application has the following advantages: 1. When the present highway bridge flatness detection equipment detects the flatness of the road surface or bridge deck, the deflection angle of the detection wheel is changed through the angle adjusting structure, and the sensor for monitoring the driving wheels is used to determine whether the trailer frame as a whole is straight driving according to the rotating speed difference between the two driving wheels. At the turning point, the rotating direction of the detection wheel is rolled along the tangent direction of the arc line of the trailer frame seat, so that the detection wheel does not produce transverse friction with the ground, thereby not producing additional pressure on the elastic telescopic rod, making the pressure detection more accurate.

[0019] 2、The highway bridge flatness detection equipment, when detecting the flatness of the road surface or the bridge surface, through the stability adjusting assembly, when detecting the arched or inclined road surface and the bridge surface, changes the distance between the stability adjusting wheel and the ground when the trailer frame is inclined, ensures that the stability adjusting wheel is in contact with the ground, plays a supporting role, cooperates with the guide wheel and the driving wheel, forms multi-wheel support, has higher stability, and meanwhile, the multi-wheel support can stabilize the tire pressure and reduce the influence of unstable tire pressure on the detection.

[0020] 3、The highway bridge flatness detection equipment, when detecting the flatness of the road surface or the bridge surface, changes the distance between the detection wheel and the trailer frame by arranging the pressure adjusting structure, so as to adapt to the road surface and the bridge surface with different radii, and ensures that the pressure detected by the pressure sensor is constant in the initial detection stage when detecting the road surface and the bridge surface with constant radii, so that the pressure value detected by the pressure sensor is more convenient to analyze.

[0021] 4、The highway bridge flatness detection equipment, when detecting the flatness of the road surface or the bridge surface, changes the included angle between the elastic telescopic rod and the road surface and the bridge surface by arranging the levelness adjusting structure, and the trailer frame is inclined before entering the arched road surface or the bridge surface, at this time, the elastic telescopic rod will also be inclined with the trailer frame, so that the friction force of the elastic telescopic rod during extension and retraction will increase, which will reduce the pressure value collected by the pressure sensor, therefore, the elastic telescopic rod is adjusted by the levelness adjusting structure to ensure that the elastic telescopic rod remains perpendicular to the ground, so that the pressure sensing accuracy of the pressure sensor can be effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings, in which: Figure 1 A structural schematic diagram of a highway bridge flatness detection equipment according to the present application is shown in the figure; Figure 2 A structural schematic diagram of a highway bridge flatness detection equipment according to the present application is shown in the figure; Figure 1 A structural schematic diagram of a highway bridge flatness detection equipment according to the present application is shown in the figure; Figure 3 A structural schematic diagram of a highway bridge flatness detection equipment according to the present application is shown in the figure; Figure 2 A structural schematic diagram of a highway bridge flatness detection equipment according to the present application is shown in the figure; Figure 4 A structural schematic diagram of a highway bridge flatness detection equipment according to the present application is shown in the figure; Figure 1 A structural schematic diagram of a highway bridge flatness detection equipment according to the present application is shown in the figure; Figure 5 A structural schematic diagram of a highway bridge flatness detection equipment according to the present application is shown in the figure; Figure 2 A structural schematic diagram of a highway bridge flatness detection equipment according to the present application is shown in the figure; Figure 6 A structural schematic diagram of a highway bridge flatness detection equipment according to the present application is shown in the figure; Figure 5 A structural schematic diagram of a highway bridge flatness detection equipment according to the present application is shown in the figure; Figure 7 A structural schematic diagram of a highway bridge flatness detection equipment according to the present application is shown in the figure; Figure 6Structure schematic diagram of the structure after rotating a certain angle; Figure 8 For Figure 5 Structure schematic diagram of the enlarged structure of the driving wheel and its peripheral components; Figure 9 For Figure 8 Structure schematic diagram of the enlarged structure of one of the driving wheels, the driving motor, the mounting frame and the adjusting rod; Figure 10 For Figure 1 Structure schematic diagram of the enlarged structure of the trailer frame, the counterweight box, the sensing control assembly and the detection assembly; Figure 11 For Figure 10 Structure schematic diagram of the enlarged structure of the sensing control assembly; Figure 12 For Figure 10 Structure schematic diagram of the enlarged structure of the detection assembly; Figure 13 For Figure 12 Structure schematic diagram of the structure after rotating a certain angle; Figure 14 For Figure 13 Structure schematic diagram of the enlarged structure of part A; Figure 15 For Figure 13 Structure schematic diagram of the enlarged structure of the pressure sensing mechanism; Figure 16 For Figure 15 Structure schematic diagram of the side view of the plane structure.

[0023] In the figure: 1 trailer frame, 2 guide wheel, 3 counterweight box, 4 stability adjusting wheel, 5 driving wheel, 6 sensing control assembly, 7 detection assembly, 8 shock absorber, 9 pneumatic telescopic rod, 10 driving motor, 11 mounting frame, 12 adjusting rod, 13 control module, 14 first angle sensor, 15 hydraulic rod, 16 mounting plate, 17 pressure sensing mechanism, 18 electric push rod, 19 fixing frame, 20 guide rod, 21 rack, 22 connecting block, 23 detection wheel, 24 elastic telescopic rod, 25 gear, 26 pressure sensor, 27 telescopic frame, 28 connecting frame, 29 servo motor, 30 wheel frame, 31 rotating frame. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] Embodiment one: refer to Figures 1-9The utility model provides a highway bridge flatness detection equipment, including carrier, still include the detection subassembly 7 and sensing control subassembly 6 of installation on carrier, The carrier includes a trailer frame 1, a guide wheel 2 is rotatably installed on the trailer frame 1, two counterweight boxes 3 are fixedly installed on the trailer frame 1, two drive wheels 5 are installed on the trailer frame 1 for driving the trailer frame 1 to move, and a stability adjusting assembly is installed at a middle position of the trailer frame 1.

[0026] The trailer frame 1 is bound behind a towing motor vehicle, and the trailer frame 1 is moved by using the motor vehicle.

[0027] The counterweight boxes 3 store counterweight blocks, the heavier the counterweight is, the higher the stability is, and the maximum counterweight is carried out in a proper interval.

[0028] The stability adjusting assembly includes two shock absorbers 8 fixedly installed on the trailer frame 1, a support is fixedly installed on the two shock absorbers 8, a rotating shaft is rotatably installed on the support, a stability adjusting wheel 4 is fixedly installed at two ends of the rotating shaft, two pneumatic telescopic rods 9 are installed between the trailer frame 1 and the support, and the pneumatic telescopic rods 9 are rotatably connected with the trailer frame 1 and the support.

[0029] Since the guide wheel 2 and the drive wheel 5 are respectively located at the front and rear ends of the trailer frame 1, and the number of the counterweight blocks in the counterweight boxes 3 is fixed, once the trailer frame 1 is inclined, the downward pressure of the counterweight blocks on the trailer frame 1 is reduced, which causes the tire pressure of the guide wheel 2 and the drive wheel 5 to be reduced, the trailer frame 1 is lifted, in order to reduce the lifting amount of the trailer frame 1, the trailer frame 1 is supported by the stability adjusting wheel 4 in a five-point mode at this time, the number of support points is increased, the stress on each wheel is smaller, the tire pressure change is smaller, and the lifting change amount of the trailer frame 1 is smaller, in addition, the five-point support has higher stability than the three-point support, and the vibration amplitude is smaller when the trailer frame 1 moves, so that the inspection is more accurate.

[0030] A mounting frame 11 is fixedly installed on the trailer frame 1, an adjusting rod 12 is slidably installed on the mounting frame 11, the adjusting rod 12 is fixed by a plug between the mounting frame 11, a support plate is rotatably installed on the adjusting rod 12, a drive motor 10 is fixedly installed on the support plate, the drive motor 10 is fixedly connected between the driving end and the drive wheel 5, a second angle sensor is fixedly installed on the trailer frame 1 for monitoring the deflection angle of the support plate, the rotating speeds of the two drive wheels 5 are inconsistent after entering a turning section, so that the deflection angles of the two drive wheels 5 are deviated to a certain extent under the action of the frictional force with the ground, which can effectively reduce the frictional force and the vibration amplitude of the frictional force, and promote the detection accuracy.

[0031] The driving motor 10 is arranged to drive the driving wheel 5 to rotate, and the driving wheel 5 is not driven to roll by the traction vehicle, and the driving speed of the driving wheel 5 is the same as the moving speed of the traction vehicle in the straight line driving, so that the trailer frame 1 has independent driving and higher stability.

[0032] The guide wheel 2 is designed as a universal wheel, and a lifting module is arranged between the guide wheel 2 and the trailer frame 1 to change the height of the trailer frame 1.

[0033] The distance between the trailer frame 1 and the driving wheel 5 is changed by adjusting the position of the plug, and the distance between the guide wheel 2 and the trailer frame 1 is adjusted by the lifting module to change the height of the trailer frame 1, the height of the trailer frame 1 is determined according to the moving speed of the trailer frame 1 during detection, the faster the speed, the lower the trailer frame 1, the slower the speed, the higher the trailer frame 1, so that the moving stability of the trailer frame 1 is ensured and the probability of shaking of the trailer frame 1 is reduced.

[0034] Embodiment two: the difference between this embodiment and the technical scheme of embodiment one is that Figures 10-16 The detection assembly 7 is composed of a plurality of pressure sensing mechanisms 17, each pressure sensing mechanism 17 is composed of a rotating frame 31, a wheel frame 30 and two detection wheels 23 rotatably arranged on the wheel frame 30, and the pressure sensing mechanism 17 further comprises a pressure sensor 26 fixedly connected between the rotating frame 31 and the pressure sensor 26; A flexible telescopic rod 24 is arranged between the wheel frame 30 and the pressure sensor 26, the flexible telescopic rod 24 is fixedly connected between the wheel frame 30 and the pressure sensor 26, and rotatably connected between the wheel frame 30 and the pressure sensor 26, the pressure sensor 26 is used for detecting and collecting the change of the reaction force of the flexible telescopic rod 24 on the pressure sensor 26, and an angle adjusting structure is arranged between the flexible telescopic rod 24 and the rotating frame 31 to change the rotation angle of the detection wheel 23.

[0035] During detection, the detection wheel 23 abuts against the ground, and once the ground is uneven, the detection wheel 23 will be displaced up and down, thereby driving the flexible telescopic rod 24 to expand and contract, the expansion and contraction of the flexible telescopic rod 24 will generate a reaction force on the pressure sensor 26 to press the pressure sensor 26, and at this time the pressure sensor 26 will collect and store the pressure data.

[0036] The angle adjusting structure comprises a fixed frame 19 fixedly arranged on the plurality of rotating frames 31, a guide rod 20 is slidingly arranged on each fixed frame 19, a rack 21 is fixedly arranged between the adjacent two guide rods 20, a gear 25 engaged with the corresponding rack 21 is fixedly arranged on each flexible telescopic rod 24, and an electric push rod 18 is fixedly arranged on one of the fixed frames 19, and the telescopic end of the electric push rod 18 is fixedly connected with one of the racks 21 through a connecting block 22.

[0037] When the trailer frame 1 enters the turning stage, the detection wheel 23 not only rolls along the forward direction of the trailer frame 1, but also moves laterally, and the lateral movement generates a large friction force with the ground. At this time, the friction force affects the pressure sensor 26, and therefore the angle of the detection wheel 23 needs to be changed so that the detection wheel 23 rolls along the tangent direction of the turning, which not only enables the trailer frame 1 to move forward, but also compensates for the lateral movement, effectively avoiding the influence of the friction force.

[0038] The trailer frame 1 is provided with a sensor for monitoring the rotation speed of the driving wheel 5, which cooperates with the electric push rod 18 to change the deflection angle of the detection wheel 23 according to the rotation speed difference between the two driving wheels 5.

[0039] Since the rotation speeds of the two driving wheels 5 are not consistent when turning, the rotation speeds of the two driving wheels 5 need to be monitored by the sensor, and the rotation angle of the detection wheel 23 is adjusted according to the rotation speed, so that the detection wheel 23 moves along the arc tangent direction of the turning. When turning, the entire trailer frame 1 rotates around one of the stability adjusting wheels 4, and the adjusted rotation angle of the detection wheel 23 is also the rotation angle around the stability adjusting wheel 4 as the fulcrum.

[0040] Specific operation: The electric push rod 18 extends and retracts according to the data transmitted by the sensor, moves the connecting block 22, moves the rack 21 fixedly connected to the connecting block 22, moves all the racks 21 under the action of the guide rod 20, and drives the corresponding gears 25 to rotate. The rotation angles of all the gears 25 are inconsistent (because the fulcrum is constant, all the detection wheels 23 are located on the same arc with the same fulcrum, and all the detection wheels 23 are located on the same straight line, but not on the same straight line with the fulcrum, so the rotation angles of all the detection wheels 23 are inconsistent. The number of teeth of the gear 25 and the rack 21 is set to achieve this), and the rotation of the gear 25 drives the elastic telescopic rod 24 to rotate, thereby driving the detection wheel 23 to rotate through the wheel frame 30, and changing the angle of the detection wheel 23.

[0041] The horizontal degree adjusting structure and the pressure adjusting structure are installed between the rotating frame 31 and the trailer frame 1, which are used to change the included angle between the detection wheel 23 and the road surface. The horizontal degree adjusting structure includes a telescopic frame 27, and the telescopic end of the telescopic frame 27 is fixedly provided with a connecting frame 28. The connecting frame 28 is rotationally connected with the rotating frame 31 through a shaft, the shaft is fixedly connected with the rotating frame 31, and the shaft is rotationally connected with the connecting frame 28. A servo motor 29 is fixedly installed on the rotating frame 31, and the driving end of the servo motor 29 is fixedly connected with the shaft.

[0042] Before entering the cambered road or bridge, the trailer frame 1 is inclined, at this time the elastic telescopic rod 24 will also incline with the trailer frame 1, so that the friction of the elastic telescopic rod 24 when telescoping is increased, which can reduce the pressure value collected by the pressure sensor, therefore, the horizontal degree adjusting structure is used to adjust the elastic telescopic rod 24, so as to ensure that the elastic telescopic rod 24 remains perpendicular to the ground, thereby effectively improving the pressure sensing accuracy of the pressure sensor 26.

[0043] The sensing control assembly 6 is composed of the first angle sensor 14 and the control module 13, the first angle sensor 14 is used to detect the horizontal inclination angle of the trailer frame 1, and the horizontal degree adjusting structure is controlled to operate through the control module 13.

[0044] The servo motor 29 has a signal transmission channel with the control module 13, the first angle sensor 14 on the control module 13 detects the inclination angle of the trailer frame 1, and then transmits a signal to the servo motor 29, the servo motor 29 drives the rotating frame 31 to rotate, so as to change the angle between the pressure sensor 26 and the ground, and ensure that the angle is 90 degrees.

[0045] The electric control locking module is installed between the shaft and the connecting frame 28, and cooperates with the servo motor 29 to lock the shaft when the servo motor 29 stops operating, and unlock the shaft when the servo motor 29 operates.

[0046] The controller is installed between the electric control locking module and the servo motor 29, and the two alternately operate, the electric control locking module locks the rotating frame 31, so as to avoid the transmission of torque to the driving end of the servo motor 29 when the rotating frame 31 is static, and protect the servo motor 29.

[0047] The pressure adjusting structure includes a plurality of hydraulic rods 15 fixedly installed on the trailer frame 1, and an installation plate 16 is fixedly installed at the telescopic end of the plurality of hydraulic rods 15, each telescopic frame 27 is fixedly connected with the installation plate 16, and a three-dimensional scanner is installed on the trailer frame 1 to scan the general situation of the road and load data.

[0048] For different cambered roads or bridges, if the cambered arc is consistent, the pressure sensor 26 can be kept at a constant height during detection; If the cambered arc changes, keeping the pressure sensor 26 at a constant height will cause the pressure value on the pressure sensor 26 to change, so it is impossible to determine whether it is the unevenness of the road or the camber of the road according to the pressure value, therefore, the road needs to be scanned according to the real-time situation of the road, and the position of the pressure sensor 26 needs to be adjusted according to the road situation, so as to ensure that the distance between the position of the pressure sensor 26 and the ground is constant.

[0049] The pressure adjusting structure is arranged to change the distance between the detection wheel 23 and the trailer frame 1, so as to adapt to different radian road surfaces and bridge surfaces, and ensure that the detection initial pressure sensor 26 detects constant pressure (the distance between the pressure sensor 26 and the ground is constant) when detecting the road surface and the bridge surface with constant radian, so that the pressure value detected on the pressure sensor 26 is more convenient to analyze.

[0050] The specific operation steps of the device are as follows: The trailer frame 1 is hung behind the traction motor vehicle, and then the pneumatic telescopic rod 9 is started to adjust the position of the stability adjusting wheel 4, so that the guide wheel 2, the driving wheel 5 and the stability adjusting wheel 4 are all in contact with the ground; Then the pneumatic traction motor vehicle and the driving motor 10 are started to drive the trailer frame 1 to move, and in the moving process, the detection wheel 23 will fluctuate when encountering uneven road surfaces, and at this time, the pressure value on the pressure sensor 26 will change, so as to judge the flatness of the road surface; When entering the turning area, the electric push rod 18 is started, and the electric push rod 18 will extend and retract according to the data transmitted by the sensor, and will drive the connecting block 22 to move, and the connecting block 22 will drive the rack 21 fixedly connected thereto to move, and all the racks 21 will move under the action of the guide rod 20, thereby driving the corresponding gear 25 to rotate, and the gear 25 will drive the elastic telescopic rod 24 to rotate, thereby driving the detection wheel 23 to rotate through the wheel frame 30 to change the angle of the detection wheel 23; Arch road surface or bridge surface detection: it is necessary to ensure that the pressure sensor 26 is perpendicular to the ground, at this time, the servo motor 29 operates to drive the rotating frame 31 to rotate, so as to change the included angle between the pressure sensor 26 and the ground; Because the radian of the arch road surface or the bridge surface is different, it is necessary to adjust the height of the pressure sensor 26 to adapt to the real-time situation of the road surface, and adjust the position of the pressure sensor 26 according to the road surface, so as to ensure that the distance between the position of the pressure sensor 26 and the ground is constant, and the pneumatic hydraulic rod 15 drives the mounting plate 16 to move, thereby driving the telescopic frame 27 to move, and the telescopic frame 27 drives the pressure sensor 26 to move, so as to achieve the purpose of adjusting the height of the pressure sensor 26.

[0051] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A highway bridge smoothness testing device, comprising a carrier, characterized in that, It also includes a detection component (7) installed on the vehicle and a sensing control component (6); The vehicle includes a trailer frame (1), a guide wheel (2) is rotatably mounted on the trailer frame (1), and two counterweight boxes (3) are fixedly mounted on the trailer frame (1). Two drive wheels (5) are mounted on the trailer frame (1) for driving the trailer frame (1) to move. A stability adjustment component is installed in the middle of the trailer frame (1). The detection component (7) consists of multiple pressure sensing mechanisms (17). Each pressure sensing mechanism (17) consists of a rotating frame (31), a wheel frame (30), and two detection wheels (23) rotatably mounted on the wheel frame (30). The pressure sensing mechanism (17) also includes a pressure sensor (26). The pressure sensor (26) is fixedly connected to the rotating frame (31). An elastic telescopic rod (24) is installed between the wheel frame (30) and the pressure sensor (26). The elastic telescopic rod (24) is fixedly connected to the wheel frame (30) and rotatably connected to the pressure sensor (26). An angle adjustment structure is installed between the elastic telescopic rod (24) and the rotating frame (31). A level adjustment structure and a pressure adjustment structure are installed between the rotating frame (31) and the trailer frame (1).

2. The highway bridge smoothness testing equipment according to claim 1, characterized in that, The sensing and control component (6) consists of a first angle sensor (14) and a control module (13). The first angle sensor (14) is used to detect the horizontal tilt angle of the trailer frame (1) and control the operation of the level adjustment structure through the control module (13).

3. The highway bridge smoothness testing equipment according to claim 1, characterized in that, The stability adjustment assembly includes two shock absorbers (8) fixedly installed on the trailer frame (1). A bracket is fixedly installed on both shock absorbers (8). A rotating shaft is rotatably installed on the bracket. A stability adjustment wheel (4) is fixedly installed at both ends of the rotating shaft. Two pneumatic telescopic rods (9) are installed between the trailer frame (1) and the bracket. The pneumatic telescopic rods (9) are rotatably connected to the trailer frame (1) and the bracket.

4. The highway bridge smoothness testing equipment according to claim 1, characterized in that, A mounting bracket (11) is fixedly installed on the trailer frame (1). An adjusting rod (12) is slidably installed on the mounting bracket (11). The adjusting rod (12) is fixed to the mounting bracket (11) by a bolt. A support plate is rotatably installed on the adjusting rod (12). A drive motor (10) is fixedly installed on the support plate. The drive end of the drive motor (10) is fixedly connected to the drive wheel (5). A second angle sensor is fixedly installed on the trailer frame (1) to monitor the deflection angle of the support plate.

5. The highway bridge smoothness testing equipment according to claim 1, characterized in that, The angle adjustment structure includes a fixed frame (19) fixedly installed on multiple rotating frames (31), a guide rod (20) is slidably installed on each fixed frame (19), a rack (21) is fixedly installed between two adjacent guide rods (20), a gear (25) meshing with the corresponding rack (21) is fixedly installed on each elastic telescopic rod (24), and an electric push rod (18) is fixedly installed on one of the fixed frames (19), and the telescopic end of the electric push rod (18) is fixedly connected to one of the racks (21) through a connecting block (22).

6. The highway bridge smoothness testing equipment according to claim 2, characterized in that, The leveling adjustment structure includes a telescopic frame (27), and a connecting frame (28) is fixedly installed at the telescopic end of the telescopic frame (27). The connecting frame (28) and the rotating frame (31) are rotatably connected by a shaft. The shaft is fixedly connected to the rotating frame (31) and rotatably connected to the connecting frame (28). A servo motor (29) is fixedly installed on the rotating frame (31), and the drive end of the servo motor (29) is fixedly connected to the shaft.

7. The highway bridge smoothness testing equipment according to claim 6, characterized in that, The pressure regulating structure includes multiple hydraulic rods (15) fixedly installed on the trailer frame (1). The telescopic ends of the multiple hydraulic rods (15) are fixedly installed on a mounting plate (16). Each telescopic frame (27) is fixedly connected to the mounting plate (16).

8. The highway bridge smoothness testing equipment according to claim 6, characterized in that, The trailer frame (1) is equipped with a sensor for monitoring the rotational speed of the drive wheel (5), which works in conjunction with the electric push rod (18) to change the deflection angle of the detection wheel (23) according to the speed difference between the two drive wheels (5).

9. The highway bridge smoothness testing equipment according to claim 1, characterized in that, The guide wheel (2) adopts a universal wheel design, and a lifting module is installed between the guide wheel (2) and the trailer frame (1) to change the height of the trailer frame (1).

10. The highway bridge smoothness testing equipment according to claim 6, characterized in that, An electronically controlled locking module is installed between the shaft and the connecting frame (28), which works in conjunction with the servo motor (29) to lock the shaft when the servo motor (29) stops operating, and to release the lock on the shaft when the servo motor (29) is operating.

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