Highway pavement flatness detection equipment

Abstract

The invention discloses highway pavement flatness detection equipment, and relates to the technical field of pavement flatness detection.The highway pavement flatness detection equipment comprises a movable frame, a connecting frame is fixedly connected to one side of the upper end face of the movable frame, a detector is clamped to the upper end face of the movable frame, a fixing frame is fixedly connected to the lower end face of the movable frame, and grooves are symmetrically formed in the lower end face of the fixing frame; the side, away from the movable frame, of the fixed frame is rotationally connected with a connecting plate, the side, away from the fixed frame, of the connecting plate is rotationally connected with a measuring wheel, and when the measuring wheel slips, a sliding column can press a button to turn on an alarm to work; and at the moment that the measuring wheel slips, detection is carried out, and alarm is triggered, so that problems found in post data processing are converted into real-time warning, continuous accumulative propagation of a wrong mileage reference is prevented, and a mechanical timestamp and a position stamp are provided for later data processing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of road surface flatness detection, in particular to a highway road surface flatness detection device. BACKGROUND

[0002] The highway road surface flatness detection device is divided into contact type and non-contact type measurement, and is mainly used for quantitatively evaluating the concave-convex condition of the road surface, obtaining the flatness index, providing core data support for highway construction quality acceptance, maintenance condition evaluation and road network technical condition census, and finally guaranteeing driving comfort and safety, guiding scientific maintenance decision and prolonging the service life of the road surface.

[0003] In the process of detecting the concave-convex condition of the highway road surface flatness by the contact type flatness detection device, the skidding phenomenon may occur during rolling due to the comprehensive influence of many factors such as the reduction of the friction coefficient caused by the wet and slippery road surface, icing, oil stains or accumulated water, the hindering of rolling by the road debris (sand, soil), the insufficient ground pressure caused by the self-wear of the detection roller or the abnormal tire pressure, the loss of the distance sensor pulse caused by the skidding, the overall misplacement of the subsequent pile number, the influence on the overall positioning accuracy, the non-continuous and random skidding, the existence of the sudden change or interruption of the collected elevation profile data caused by the non-road surface characteristics, the destruction of the continuity and analyzability of the real road surface profile, and the failure of the sensor (such as the accelerometer and the displacement sensor) to collect effective and coherent road surface feedback signals at the key road section due to the serious or continuous skidding, and the formation of the data missing section.

[0004] Therefore, the present application provides a highway road surface flatness detection device to solve the above problems. SUMMARY

[0005] (I) Technical problems solved

[0006] In view of the deficiencies of the prior art, the present application provides a highway road surface flatness detection device, which can effectively solve the problems in the prior art.

[0007] (II) Technical scheme

[0008] To achieve the above-mentioned purposes, the purposes of the present application can be realized by the following technical scheme:

[0009] The utility model provides a highway pavement flatness detection equipment, including mobile frame, one side fixedly connected with connecting frame on the upper end surface of mobile frame, the detection appearance is clamped on the upper end surface of mobile frame, the lower end surface fixedly connected with fixed frame of mobile frame, the recess is opened to fixed frame lower end surface symmetry, the connecting plate is rotatably connected with the side away from mobile frame of fixed frame, the measuring wheel is rotatably connected with the side away from fixed frame of connecting plate, still include skidding detection early warning mechanism and concave-convex road marking mechanism, the skidding detection early warning mechanism includes auxiliary wheel, the shaft sleeve is fixedly connected in the center of auxiliary wheel, the shaft sleeve is rotatably connected on the side wall of connecting plate, the shaft sleeve center passes through the rotating shaft, the rotating shaft passes through and is rotatably connected on the center of measuring wheel, the rotating shaft passes through and is fixedly connected on the center of measuring wheel, the skidding detection early warning mechanism early warning when the skidding of measuring wheel occurs, the concave-convex road marking mechanism is used to mark coating to be sprayed in the concave-convex place of road.

[0010] As a further scheme of the utility model: the rotating shaft fixedly connected with the fixed plate on the side away from the measuring wheel, the fixed plate fixedly connected with the slide column on the side close to the auxiliary wheel, the auxiliary wheel is opened with the arc slot on the side close to the slide column, the slide column is slidably connected in the arc slot.

[0011] As a further scheme of the utility model: the arc slot fixedly connected with the button on the side away from the slide column, the button electrically connected with the alarm, the alarm is fixedly connected on the side wall of connecting plate.

[0012] As a further scheme of the utility model: the sliding slot is opened on the upper end surface of fixed frame and connecting plate, a plurality of moving frames are slidably connected in the sliding slot, the first counterweight is fixedly connected on the upper end surface of moving frame symmetry, the initial position of moving frame is located above fixed frame.

[0013] As a further scheme of the utility model: the clamping hole is opened in the sliding slot, the clamping column is slidably connected in the center of moving frame, the clamping column and clamping hole are mutually clamped, the pull plate is fixedly connected on the upper end of clamping column, the spring is fixedly connected between pull plate and moving frame, the spring is sleeved on the outer surface of clamping column.

[0014] As a further scheme of the utility model: the concave-convex road marking mechanism includes storage barrel, the storage barrel is fixedly connected on the upper end surface of fixed frame, the extrusion nozzle is fixedly connected on the fixed frame on the lower end of storage barrel, the extrusion nozzle is fixedly connected on the fixed frame.

[0015] As a further scheme of the utility model: the lifting plate is fixedly connected on the outer surface of extrusion nozzle, the linkage frame is arranged on the both sides of lifting plate, the linkage frame is slidably connected in the recess, the limiting block is fixedly connected on the upper end surface of linkage frame, the lower end surface of lifting plate is matched with the upper end surface of limiting block, the side close to lifting plate of limiting block is inclined surface.

[0016] As a further scheme of the present application: the lower end surface of the fixing frame is slidably connected with a lifting column, the lower end of the lifting column is fixedly connected with a mounting frame, the mounting frame is rotatably connected with a moving wheel, the upper end surface of the mounting frame is fixedly connected with a second counterweight symmetrically, the second counterweight is rotatably connected with a linkage plate on the side away from the lifting column, and the linkage plate is rotatably connected to the side wall of the linkage frame on the side away from the second counterweight.

[0017] As a further scheme of the present application: the mounting frame is fixedly connected with a fixed column symmetrically on the side away from the linkage frame, a sliding plate is slidably connected between the outer surfaces of the two fixed columns, and the lower end surface of the sliding plate is fixedly connected with a cleaning brush.

[0018] As a further scheme of the present application: the two sides of the sliding plate are rotatably connected with a connecting rod, the connecting rod is rotatably connected with a push plate on the side away from the sliding plate, the two push plates are fixedly connected with a connecting shaft, the connecting shaft is rotatably connected to the mounting frame, and the connecting shaft is fixedly connected to the center of the moving wheel.

[0019] (Three) beneficial effects

[0020] Compared with the prior art, the present application provides a highway pavement flatness detection equipment with the following beneficial effects:

[0021] 1. The skid detection and early warning mechanism can press the button with the slide column when the measuring wheel slips, turn on the alarm and work, not only detect and trigger the alarm at the moment when the measuring wheel slips, but also change the problem found in the data processing into real-time warning, prevent the continuous accumulation and spread of the error mileage reference, provide mechanical time stamp and position stamp for later data processing, eliminate the calculation burden and misjudgment risk of complex algorithm backtracking identification, avoid the existence of non-road surface characteristics in the collected elevation profile data, and prevent the occurrence of sudden changes or interruptions, thereby maintaining the continuity and analyzability of the real road surface profile, and can early warning potential faults such as excessive wear of the measuring wheel, abnormal tire pressure, increased bearing resistance or mechanical transmission mechanism jamming, help to arrange intervention and maintenance before causing greater measurement accidents, and ensure the long-term stable operation of the detection equipment and the consistency of the measurement reference.

[0022] 2、By setting the mobile frame, card column, card hole and counterweight, can be in the measurement wheel slip, drive the first counterweight to move to the connection plate above, increase the pressure of the measurement wheel and road surface contact, improve the friction between the measurement wheel and the road surface, not only makes the measurement wheel no longer passively bear the data distortion caused by the decrease of friction coefficient, but actively change the system state (increase the positive pressure) to directly against the interference source, significantly improve the environmental adaptability of the measurement system under non-ideal road conditions, and through the automatic pressure increasing mechanism, the measurement wheel can be suppressed in the initial or instantaneous slip, avoid a series of derived data defects such as pulse loss, height signal interruption or distortion caused by subsequent slip, the measurement wheel can be restored or maintained effective traction and follow-up, so as to ensure that the collected road elevation profile signal is continuous, complete and truly reflects the road geometry profile.

[0023] 3、Through the setting of the concave-convex road marking mechanism, when the concave-convex road surface is detected, the marking paint can be automatically sprayed on the concave-convex road surface, so that the subsequent staff can find the concave-convex road surface in time for processing. The visibility not only provides intuitive navigation guidance without interpretation for the maintenance construction team, but also directly carries out milling and filling based on the marking, reduces the technical disclosure link and information transmission attenuation, and the precise spraying marking ensures that each concave-convex disease is included in the maintenance work order and is repaired in a targeted manner, directly reduces the driving vibration frequency and impact strength, and improves the driving comfort and safety.

[0024] 4、Through the setting of the connecting shaft, connecting rod, push plate and sliding plate, the cleaning brush can drive the dust particles on the measurement wheel moving path to be cleaned, not only eliminating the mechanical impact and electrical signal jump of foreign matter on the measurement wheel, avoiding the interference of speed fluctuation on the integrity of highway road data, improving the measurement precision and data quality of highway road flatness detection, but also preventing sand particles from embedding into the contact surface between the measurement wheel and the road surface, avoiding abnormal wear of the rubber tire surface and rapid decay of the wheel diameter, thereby improving the service life of the measurement wheel. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to facilitate the understanding of those skilled in the art, the present application will be further described below with reference to the accompanying drawings.

[0026] Figure 1 The whole structure of the present application is shown in the figure;

[0027] Figure 2 The fixed frame of the present application is shown in the figure; Figure 1

[0028] Figure 3 The fixed frame and the measurement wheel connection structure of the present application are shown in the figure;

[0029] Figure 4 The fixed frame and the measurement wheel connection structure of the present application are shown in the figure; Figure 3 ​The schematic diagram of the amplification structure of the middle A area;

[0030] Figure 5 For the invention Figure 3 The schematic diagram of the amplification structure of the middle B area;

[0031] Figure 6 For the invention Figure 3 The schematic diagram of the amplification structure of the middle C area;

[0032] Figure 7 The schematic diagram of the fixed frame bottom structure of the invention;

[0033] Figure 8 The schematic diagram of the connection structure of the extrusion nozzle and the linkage frame of the invention.

[0034] In the figure: 1, mobile frame; 2, groove; 3, connecting frame; 4, detector; 5, fixed frame; 6, connecting plate; 7, measuring wheel;

[0035] 801, alarm; 802, sliding groove; 803, moving frame; 804, pull plate; 805, rotating shaft; 806, shaft sleeve; 807, auxiliary wheel; 808, fixed plate; 809, sliding column; 810, arc-shaped groove; 811, button; 812, clamping hole; 813, first counterweight; 814, clamping column; 815, spring;

[0036] 901, storage barrel; 902, extrusion nozzle; 903, linkage frame; 904, lifting column; 905, mounting frame; 906, moving wheel; 907, fixed column; 908, sliding plate; 909, cleaning brush; 910, connecting rod; 911, second counterweight; 912, linkage plate; 913, push plate; 914, connecting shaft; 915, lifting plate; 916, limiting block. DETAILED DESCRIPTION

[0037] The technical solutions of the present application will be described clearly and completely below in conjunction with the embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0038] A highway pavement flatness detection device according to the present embodiment is shown in Figure 1 - Figure 8As shown, including mobile frame 1, the upper end surface of mobile frame 1 is fixedly connected with connecting frame 3, the upper end surface of mobile frame 1 is clamped with detector 4, the lower end surface of mobile frame 1 is fixedly connected with fixed frame 5, the lower end surface of fixed frame 5 is symmetrically provided with groove 2, the side away from mobile frame 1 of fixed frame 5 is rotatably connected with connecting plate 6, the side away from fixed frame 5 of connecting plate 6 is rotatably connected with measuring wheel 7, and the skid detection and early warning mechanism and the concave-convex road marking mechanism are further included, the skid detection and early warning mechanism includes auxiliary wheel 807, the center of auxiliary wheel 807 is fixedly connected with shaft sleeve 806, shaft sleeve 806 is rotatably connected with the side wall of connecting plate 6, the center of shaft sleeve 806 is penetrated with rotating shaft 805, rotating shaft 805 is rotatably connected with connecting plate 6, and rotating shaft 805 is fixedly connected with the center of measuring wheel 7, the skid detection and early warning mechanism can give an early warning when the measuring wheel 7 slips.

[0039] In the embodiment, as shown in Figure 4 The side away from measuring wheel 7 of rotating shaft 805 is fixedly connected with fixed plate 808, the side close to auxiliary wheel 807 of fixed plate 808 is fixedly connected with slide column 809, the side close to slide column 809 of auxiliary wheel 807 is provided with arc-shaped groove 810, and slide column 809 is slidably connected in arc-shaped groove 810; when rotating shaft 805 rotates synchronously with measuring wheel 7, rotating shaft 805 will drive arc-shaped groove 810 to rotate synchronously by fixed plate 808 and slide column 809.

[0040] In the embodiment, as shown in Figure 4 The side away from slide column 809 in arc-shaped groove 810 is fixedly connected with button 811, button 811 is electrically connected with alarm 801, and alarm 801 is fixedly connected with the side wall of connecting plate 6; when slide column 809 stops moving, auxiliary wheel 807 will continue to rotate due to inertia, the position of arc-shaped groove 810 is changed, slide column 809 is slid in arc-shaped groove 810 close to button 811, button 811 is pressed, and alarm 801 is turned on to work.

[0041] In the embodiment, as shown in Figure 3 And Figure 5 The upper end surfaces of fixed frame 5 and connecting plate 6 are both provided with sliding groove 802, a plurality of moving frames 803 are slidably connected in sliding groove 802, the upper end surfaces of moving frames 803 are both fixedly connected with first counterweight 813, and the initial positions of moving frames 803 are all above fixed frame 5; when moving frames 803 are moved from above fixed frame 5 to above connecting plate 6, first counterweight 813 is synchronously moved to above connecting plate 6, and a downward pressure is applied to connecting plate 6 due to the gravity of first counterweight 813.

[0042] In the embodiment, as shown in Figure 5As shown, the sliding groove 802 is provided with a clamping hole 812, and the center of the moving frame 803 is provided with a clamping column 814 connected through sliding, the clamping column 814 is clamped with the clamping hole 812, the upper end of the clamping column 814 is fixedly connected with a pull plate 804, the pull plate 804 and the moving frame 803 are fixedly connected with a spring 815, the spring 815 is sleeved on the outer surface of the clamping column 814, and the clamping column 814 is clamped into the clamping hole 812 through driving, so that the moving frame 803 is clamped above the fixed frame 5 or the connecting plate 6.

[0043] In the prior art, during the detection of the concave-convex condition of the highway pavement flatness by the contact type flatness detection device, the multiple factors such as the reduced friction coefficient caused by the wet and slippery, icy, oily or accumulated water of the road surface, the road surface debris (sand, soil) hindering the rolling, the insufficient ground pressure caused by the self wear or abnormal tire pressure of the detection roller, etc. can cause the rolling to slip, which not only causes the pulse loss of the distance sensor, resulting in the overall misplacement of the subsequent pile number and affecting the overall positioning accuracy, but also the slip is usually discontinuous and random, which can cause the collected elevation profile data to have mutations or interruptions caused by non-road surface characteristics, destroying the continuity and analyzability of the real road surface profile, and the serious or continuous slip can cause the sensor (such as an accelerometer, a displacement sensor) to fail to collect effective and coherent road surface feedback signals at a key road section, forming a data missing section.

[0044] In other aspects, the embodiment further provides a concave-convex roadside marking mechanism for spraying marking paint on the concave-convex part of the road surface, as shown in Figure 2 、 Figure 3 、 Figure 6 - Figure 8 As shown, the concave-convex road surface marking mechanism comprises a storage barrel 901, the storage barrel 901 is fixedly connected to the upper end face of the fixed frame 5, and the lower end of the storage barrel 901 is fixedly connected with an extrusion spray head 902, and the extrusion spray head 902 is fixedly connected to the upper end of the fixed frame 5.

[0045] In this embodiment, as shown in Figure 7 and Figure 8 The outer surface of the extrusion nozzle 902 is fixedly connected with a lifting plate 915, both sides of the lifting plate 915 are provided with linkage frames 903, the linkage frames 903 are slidingly connected in the grooves 2, the upper end surfaces of the linkage frames 903 are fixedly connected with limiting blocks 916, the upper end surfaces of the limiting blocks 916 are in close contact with the lower end surfaces of the lifting plate 915, and the sides of the limiting blocks 916 close to the lifting plate 915 are inclined surfaces. When the linkage frames 903 move horizontally in the grooves 2 to drive the limiting blocks 916 to approach the lifting plate 915, the limiting blocks 916 will push the lifting plate 915 to rise, so that the lifting plate 915 presses the extrusion nozzle 902.

[0046] In this embodiment, as shown in Figure 7 The lower end surface of the fixed frame 5 is slidingly connected with a lifting column 904, the lower end of the lifting column 904 is fixedly connected with a mounting frame 905, the mounting frame 905 is rotatably connected with a moving wheel 906, the upper end surface of the mounting frame 905 is fixedly connected with second counterweights 911, the sides of the second counterweights 911 away from the lifting column 904 are rotatably connected with linkage plates 912, and the sides of the linkage plates 912 away from the second counterweights 911 are rotatably connected to the side walls of the linkage frames 903. When the moving wheel 906 slides in close contact with the road surface and is affected by the unevenness of the wheel surface, the moving wheel 906 will push the lifting column 904 and the second counterweights 911 to rise and fall synchronously through the mounting frame 905, and the second counterweights 911 will pull the linkage frames 903 to move horizontally close to the lifting column 904 through the linkage plates 912 during movement.

[0047] In this embodiment, as shown in Figure 7 The side of the mounting frame 905 away from the linkage frame 903 is fixedly connected with fixed columns 907, and the outer surfaces of the two fixed columns 907 are slidingly connected with a sliding plate 908. The lower end surface of the sliding plate 908 is fixedly connected with a cleaning brush 909. When the sliding plate 908 moves horizontally on the outer surfaces of the fixed columns 907, the cleaning brush 909 connected to the lower end surface of the sliding plate 908 can be moved, so that the cleaning brush 909 can clean the road surface below.

[0048] In this embodiment, as shown in Figure 3 and Figure 6As shown, the slide plate 908 is rotatably connected with connecting rods 910 on both sides, the connecting rods 910 are rotatably connected with the push plates 913 away from the slide plate 908, the two push plates 913 are fixedly connected with a connecting shaft 914, the connecting shaft 914 penetrates through and is rotatably connected with the mounting frame 905, and the connecting shaft 914 is fixedly connected with the center of the moving wheel 906. When the moving wheel 906 rolls along the road surface, the connecting shaft 914 can be driven to rotate synchronously. At this time, the connecting shaft 914 drives the push plates 913 and the connecting rods 910 to push the slide plate 908 to move horizontally and reciprocally on the outer surface of the fixed column 907.

[0049] Compared with the prior art, when the concave-convex situation of the highway pavement is detected, the marking paint can be automatically sprayed on the concave-convex pavement, so that the subsequent workers can find the concave-convex pavement in time for processing. The visibility not only provides intuitive and non-interpretation navigation guidance for the maintenance construction team, but also directly carries out milling and filling based on the marking, reduces the technical disclosure link and information transmission attenuation, and the precise spraying marking ensures that each concave-convex disease is included in the maintenance work order and is repaired in a targeted manner, directly reduces the driving vibration frequency and impact strength, and improves the driving comfort and safety.

[0050] The working process and principles involved in the above embodiments are as follows:

[0051] When the staff needs to detect the flatness of the highway pavement, first fix the mobile frame 1 on the mobile vehicle body through the connecting frame 3, then pull the mobile frame 1 on the highway pavement through the mobile vehicle body, at this time the connected measuring wheel 7 and the moving wheel 906 under the mobile frame 1 will fit the pavement and roll synchronously, when the measuring wheel 7 rolls on the connecting plate 6 to rotate, the measuring wheel 7 will drive the shaft 805 coaxially connected on the connecting plate 6 to rotate synchronously, because the shaft 805 is connected with the fixed plate 808 away from the measuring wheel 7 side, the fixed plate 808 is connected with the slide column 809, the slide column 809 is slidingly connected in the arc-shaped groove 810 in the side wall of the auxiliary wheel 807, the auxiliary wheel 807 is rotatably connected to the side wall of the connecting plate 6 through the shaft sleeve 806, therefore, with the rotation of the shaft 805, the shaft 805 will drive the fixed plate 808 to drive the slide column 809 to slide in the arc-shaped groove 810, when the slide column 809 cannot continue to slide, the slide column 809 will drive the auxiliary wheel 807 to rotate through the arc-shaped groove 810, when the measuring wheel 7 rolls on the ground, the measuring wheel 7 will be affected by some factors to cause the measuring wheel 7 to slip, the shaft 805 fixedly connected to the measuring wheel 7 will stop rotating synchronously, at this time the force of the shaft 805 rotating the auxiliary wheel 807 through the fixed plate 808, the slide column 809 and the arc-shaped groove 810 will disappear, and the auxiliary wheel 807 will continue to rotate under the influence of inertia, so that the slide column 809 slides in the arc-shaped groove 810 to the button 811 direction, until the slide column 809 presses on the button 811, the button 811 is electrically connected with the alarm 801 on the side wall of the connecting plate 6 after being pressed, can open the alarm 801 and work synchronously, not only detects and triggers the alarm at the moment when the measuring wheel 7 slips, changes the problem found in the data processing into real-time warning, prevents the continuous accumulation and spread of the error mileage reference, provides mechanical time stamp and position stamp for the later data processing, eliminates the calculation burden and misjudgment risk of complex algorithm backtracking identification, avoids the existence of non-road features in the collected elevation profile data, prevents the occurrence of sudden changes or interruptions, maintains the continuity and analyzability of the real road profile, and can early warning potential faults such as excessive wear of the measuring wheel 7, abnormal tire pressure, increased bearing resistance or mechanical transmission mechanism jam, helps to arrange intervention and maintenance before causing greater measurement accidents, ensures the long-term stable operation of the detection equipment and the consistency of the measurement reference;

[0052] When the measuring wheel 7 slips, the staff stops moving the frame 1, and then pulls the pull plate 804 upward, drives the clamping column 814 to slide vertically upward on the moving frame 803, rises out of the clamping hole 812 in the inner bottom of the slide groove 802 on the upper end surface of the fixed frame 5, and pulls the spring 815 connected between the pull plate 804 and the moving frame 803. When the clamping column 814 and the clamping hole 812 are separated, the staff can drive the pull plate 804 horizontally, drive the moving frame 803 to slide into the slide groove 802 on the upper end surface of the connecting plate 6 from the inside of the slide groove 802 on the upper end surface of the fixed frame 5, drive the first counterweight 813 connected to the upper end surface of the moving frame 803 to move above the connecting plate 6, press the measuring wheel 7 rotatably connected to the connecting plate 6, increase the friction between the measuring wheel 7 and the road surface, not only make the measuring wheel 7 no longer passively bear the data distortion caused by the decrease of the friction coefficient, but also actively change the system state (increase the positive pressure) to directly resist the interference source, significantly improve the environmental adaptability of the measurement system under non-ideal road conditions, and through the automatic pressure increasing mechanism, the measuring wheel 7 can be suppressed at the initial stage or the moment of slipping, avoid a series of derived data defects such as pulse loss, height signal interruption or distortion caused by subsequent slipping, and the measuring wheel 7 can restore or maintain effective traction and follow-up, so as to ensure that the collected road elevation profile signal is continuous, complete and truly reflects the road geometry profile. After the moving frame 803 moves to the slide groove 802 on the upper end surface of the connecting plate 6, the staff can release the pull plate 804, and through the rebounding force of the spring 815 connected between the pull plate 804 and the moving frame 803, the clamping column 814 can be clamped into the clamping hole 812 on the upper end surface of the connecting plate 6 again, the position of the moving frame 803 is fixed, and through the plurality of moving frames 803, the staff can control the plurality of first counterweights 813 to move above the connecting plate 6 according to the demand, and adjust the pressure applied to the measuring wheel 7.

[0053] During the movement of the mobile frame 1, when the connected mobile wheel 906 under the mobile frame 1 moves to the uneven road surface, the mobile wheel 906 will move up and down synchronously with the uneven road surface under the influence of the second counterweight 911 and the lifting column 904, and drive the second counterweight 911 and the lifting column 904 to move up and down synchronously through the mounting frame 905. During the lifting of the second counterweight 911, the second counterweight 911 drives the two sides of the rotatingly connected linkage plates 912 to move from a horizontal state to an inclined state. With the change of the state of the linkage plates 912, the linkage plates 912 pull the linkage frames 903 rotatingly connected away from the second counterweight 911 to move horizontally in the groove 2 formed in the lower end surface of the fixed frame 5. Since the upper end surfaces of the linkage frames 903 are connected with the limiting blocks 916, the limiting blocks 916 are in close contact with the lower end surfaces of the lifting plates 915 connected with the extrusion nozzles 902, and the side of the limiting blocks 916 close to the lifting plates 915 is inclined. Therefore, with the horizontal movement of the linkage frames 903, the linkage frames 903 drive the limiting blocks 916 to move synchronously. Under the influence of the inclined surface of the limiting blocks 916, the limiting blocks 916 push the lifting plates 915 to rise and press the extrusion nozzles 902. After the extrusion nozzles 902 are pressed, the extrusion nozzles 902 spray the marking paint in the internal storage barrel 901 connected with the upper end to the uneven road surface below, so that the subsequent workers can find the uneven road surface in time for processing. The visibility not only provides intuitive and non-interpretation navigation guidance for the maintenance construction team, but also directly carries out milling and filling based on the marking, reduces the technical disclosure link and information transmission attenuation, and the precise spraying marking ensures that each place of the uneven disease is included in the maintenance work order and is repaired in a targeted manner, directly reduces the vibration frequency and impact strength of the vehicle, and improves the driving comfort and safety;

[0054] When the mobile wheel 906 moves to the horizontal road surface again, the linkage plate 912 connected between the second counterweight 911 and the linkage frame 903 is also in a horizontal state. At this time, the linkage frame 903 drives the limiting block 916 to gradually move away from the lifting plate 915, and the lifting plate 915 automatically descends and resets under the rebound effect of the extrusion nozzle 902.

[0055] When the mobile wheel 906 is attached to the road surface and rolls, the connecting shaft 914 connected with the shaft center will rotate synchronously on the mounting frame 905, since the connecting shaft 914 is fixedly connected with the push plates 913 at both ends, the push plates 913 are rotatably connected with the connecting rods 910, the connecting rods 910 are rotatably connected with the sliding plates 908, and the sliding plates 908 are slidably connected between the two fixed columns 907, therefore, with the rotation of the connecting shaft 914, the connecting shaft 914 will push the sliding plates 908 to move horizontally reciprocating on the outer surface of the fixed column 907 through the push plates 913 and the connecting rods 910, so that the cleaning brush 909 connected with the lower end surface of the sliding plate 908 can clean the road surface, which not only eliminates the mechanical impact of foreign matters on the measuring wheel 7 and the electrical signal jump, avoids the interference of speed fluctuation on the data integrity of the road surface, improves the measurement precision and data quality of the road surface flatness detection, but also prevents the sand particles from embedding into the contact surface between the measuring wheel 7 and the road surface, avoids the abnormal wear of the rubber tire surface and the rapid decay of the wheel diameter, so as to improve the service life of the measuring wheel 7.

[0056] The preferred embodiments disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details and limit the present application to the specific embodiments. Obviously, according to the content of the present application, many modifications and changes can be made. The present application is selected and described in detail, in order to better explain the principles and practical application of the present application, so that those skilled in the art can well understand and utilize the present application. The present application is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A road surface smoothness testing device, comprising a mobile frame (1), a connecting frame (3) fixedly connected to one side of the upper end face of the mobile frame (1), a testing instrument (4) snapped onto the upper end face of the mobile frame (1), a fixing frame (5) fixedly connected to the lower end face of the mobile frame (1), a groove (2) symmetrically formed on the lower end face of the fixing frame (5), a connecting plate (6) rotatably connected to the side of the fixing frame (5) away from the mobile frame (1), and a measuring wheel (7) rotatably connected to the side of the connecting plate (6) away from the fixing frame (5), characterized in that, It also includes slip detection warning mechanism and concave-convex road marking mechanism; The slip detection warning mechanism includes an auxiliary wheel (807) having a shaft sleeve (806) fixedly connected at the center of the auxiliary wheel (807), the shaft sleeve (806) being rotatably connected to the side wall of the connecting plate (6), the shaft sleeve (806) having a rotating shaft (805) penetratingly fixedly connected at the center of the shaft sleeve (806), the rotating shaft (805) penetratingly rotatably connected to the connecting plate (6), and the rotating shaft (805) penetratingly fixedly connected to the center of the measuring wheel (7), the slip detection warning mechanism warning when the measuring wheel (7) slips. The concave-convex road marking mechanism is used for spraying marking paint on the concave-convex part of the road.

2. The highway pavement evenness detection device according to claim 1, wherein, The rotating shaft (805) is fixedly connected with a fixed plate (808) away from the measuring wheel (7), the fixed plate (808) is fixedly connected with a sliding column (809) near the auxiliary wheel (807), the auxiliary wheel (807) is provided with an arc-shaped slot (810) near the sliding column (809), and the sliding column (809) is slidingly connected in the arc-shaped slot (810).

3. The highway pavement evenness detection device of claim 2, wherein, The arc-shaped slot (810) is fixedly connected with a button (811) away from the sliding column (809), the button (811) is electrically connected with an alarm (801), and the alarm (801) is fixedly connected to the side wall of the connecting plate (6).

4. The highway pavement evenness detection device of claim 1, wherein, The fixed frame (5) and the connecting plate (6) are both provided with a sliding groove (802) on the upper end face, a plurality of moving frames (803) are slidingly connected in the sliding groove (802), the moving frames (803) are both fixedly connected with a first counterweight (813) on the upper end face, and the moving frames (803) are both located above the fixed frame (5) in the initial position.

5. The highway pavement evenness detection device of claim 4, wherein, The sliding groove (802) is provided with a clamping hole (812), the moving frame (803) is slidingly connected with a clamping column (814) penetratingly at the center, the clamping column (814) is clamped with the clamping hole (812), the clamping column (814) is fixedly connected with a pull plate (804) on the upper end, the pull plate (804) and the moving frame (803) are both fixedly connected with a spring (815), and the spring (815) is sleeved on the outer surface of the clamping column (814).

6. The highway pavement evenness detection device of claim 1, wherein, The concave-convex road marking mechanism includes a storage barrel (901) fixedly connected to the upper end face of the fixed frame (5), an extrusion nozzle (902) fixedly connected to the lower end of the storage barrel (901), and the extrusion nozzle (902) penetratingly fixedly connected to the fixed frame (5).

7. The highway pavement evenness detection device of claim 6, wherein, The extrusion nozzle (902) is fixedly connected with a lifting plate (915), the lifting plate (915) is provided with a linkage frame (903) on both sides, the linkage frame (903) is slidingly connected in the groove (2), the linkage frame (903) is fixedly connected with a limiting block (916) on the upper end face, the limiting block (916) is matched with the lower end face of the lifting plate (915) on the upper end face, and the limiting block (916) is inclined near the lifting plate (915).

8. The highway pavement evenness detection device of claim 7, wherein, The lower end surface of the fixing frame (5) is slidably connected with a lifting column (904), the lower end of the lifting column (904) is fixedly connected with a mounting frame (905), the mounting frame (905) is rotatably connected with a moving wheel (906), the upper end surface of the mounting frame (905) is fixedly connected with a second counterweight (911) symmetrically, the side, away from the lifting column (904), of the second counterweight (911) is rotatably connected with a linkage plate (912), and the side, away from the second counterweight (911), of the linkage plate (912) is rotatably connected to the side wall of the linkage frame (903).

9. The highway pavement evenness detection device of claim 8, wherein, The side, away from the linkage frame (903), of the mounting frame (905) is fixedly connected with a fixed column (907) symmetrically, the outer surfaces of the two fixed columns (907) are slidably connected with a sliding plate (908), and the lower end surface of the sliding plate (908) is fixedly connected with a cleaning brush (909).

10. The highway pavement evenness detection device of claim 9, wherein, The two sides of the sliding plate (908) are rotatably connected with a connecting rod (910), the side, away from the sliding plate (908), of the connecting rod (910) is rotatably connected with a pushing plate (913), the two pushing plates (913) are fixedly connected with a connecting shaft (914), the connecting shaft (914) penetrates through and is rotatably connected to the mounting frame (905), and the connecting shaft (914) is fixedly connected to the center of the moving wheel (906).

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