Real-time online measuring device for road construction

Abstract

The invention discloses a real-time on-line measuring device for road construction. The real-time on-line measuring device comprises two supports, a sliding rail is arranged between the two supports, a tackle is arranged on the sliding rail in a sliding mode, a vertical stand column is fixed to the tackle, a plurality of sliding blocks are distributed in the stand column, and a laser is arranged in each sliding block; compared with the prior art, real-time, on-line and non-contact continuous measurement and monitoring can be carried out on a pavement which is being paved or just paved.

Description

TECHNICAL FIELD

[0001] The present application relates to the road measurement technical field, specifically a kind of real-time online measuring device for road construction. BACKGROUND

[0002] In road construction, road surface flatness directly affects driving safety and engineering life, and traditional detection relies on manual offline measurement or hardened vehicle-mounted equipment, which has serious hysteresis: manual detection needs to interrupt construction and only obtains discrete data, which cannot capture defects in the paving golden window period;Vehicle-mounted equipment cannot work on unhardened pavement, and the data density is insufficient;Emerging technologies such as fixed scanning stations are limited by mobility, real-time performance and adaptability to complex working conditions.

[0003] Therefore, it is necessary to provide a real-time online measuring device for road construction to solve the problems raised in the background art. SUMMARY

[0004] To achieve the above purpose, the present application provides the following technical scheme: a real-time online measuring device for road construction, comprising two supports, a slide rail is arranged between the two supports, a trolley is slidably arranged on the slide rail, a vertical column is fixed on the trolley, a plurality of sliding blocks are distributed in the column, and a laser is arranged in each sliding block.

[0005] Further, an extension rod capable of extending upward is slidably arranged in the column, and a sliding groove is formed in the front of the column and the extension rod, and each sliding block is slidably connected to the sliding groove.

[0006] Further, a telescopic cylinder is fixed in the column, and the piston rod of the telescopic cylinder is fixed in the extension rod.

[0007] Further, the two sliding blocks at the uppermost and lowermost positions in the sliding groove are fixed to the upper end of the extension rod and the lower end of the column, respectively.

[0008] Two cross-linkages in the form of "X" are hinged in each sliding block, and the two cross-linkages of adjacent sliding blocks are hinged to each other.

[0009] Further, the laser is rotatably arranged in the sliding block.

[0010] Further, the laser has a connecting rod fixed to one end of the rotating shaft, and each connecting rod has a sliding sleeve hinged to the other end.

[0011] One side of the column is provided with a forwardly inclined guide shaft, and each sliding sleeve is slidably arranged in the guide shaft.

[0012] Further, one side of the column is fixed with a fixed rod, upper and lower ends of the fixed rod are respectively fixed with horizontal rods, and the guide shaft is arranged between the two horizontal rods.

[0013] Further, a through guide groove is formed in the horizontal rod, a guide block is slidably arranged in the guide groove, the guide shaft is slidably and rotatably penetrated through the guide block, and the guide block is loosely connected with the guide shaft and the horizontal rod through locking screws.

[0014] Compared with the prior art, the beneficial effects of the present application are:

[0015] In the present application, multiple lasers distributed on the column work synchronously, a single acquisition can cover multiple longitudinal positions of the road surface, completely replacing the traditional single-point measurement method, the trolley automatically moves transversely along the slide rail, can quickly complete the full-lane width scanning, supports synchronous movement with the paver, realizes uninterrupted measurement in the whole construction process, and avoids process downtime waiting for detection results.

[0016] In the present application, when the extension rod is extended or retracted, the cross link automatically keeps all the sliders equally distributed, ensures that the vertical spacing of the lasers is constant, the sliders move to drive the guide shaft linkage, automatically adjusts the inclination angle of the lasers, makes different height measurement points accurately track the target of the road surface, and the longitudinal measurement points are uniformly distributed. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of a real-time online measurement device for road construction;

[0018] Figure 2 It is a structural schematic view of the front of the column;

[0019] Figure 3 It is a structural schematic view of the side of the column;

[0020] Figure 4 It is a schematic view of the projection position of the laser;

[0021] In the figure: 1, support; 2, slide rail; 3, trolley; 4, column; 41, extension rod; 42, sliding groove; 5, slider; 51, connecting rod; 52, sliding sleeve; 6, laser; 7, telescopic cylinder; 8, cross link; 9, guide shaft; 91, fixed rod; 92, horizontal rod; 93, guide groove; 94, guide block. DETAILED DESCRIPTION

[0022] Please refer to Figures 1-4 In the embodiment of the present application, a real-time online measurement device for road construction comprises two supports 1, a slide rail 2 is arranged between the two supports 1, a trolley 3 is slidably arranged on the slide rail 2, a vertical column 4 is fixed on the trolley 3, multiple sliders 5 are distributed in the column 4, and a laser 6 is arranged in each slider 5.

[0023] The plurality of lasers 6 simultaneously measure different longitudinal positions on the road surface, and the entire lane width can be quickly scanned by the transverse movement of the trolley 3, thereby generating continuous high-density elevation point cloud data, calculating and displaying the flatness index in real time, and continuously measuring and monitoring the road surface being paved or just completed in real time, online and non-contact.

[0024] In the embodiment, the extension rod 41 capable of extending upward is slidably arranged in the column 4, and the column 4 and the extension rod 41 are both provided with a sliding groove 42.

[0025] The total height can be changed by the up-down telescopic extension rod 41, and the distribution position of the laser 6 can be changed by the sliding of the sliding block 5 along the sliding groove 42, so as to adapt to the monitoring of different longitudinal ranges.

[0026] In the embodiment, the telescopic cylinder 7 is fixed in the column 4, and the piston rod of the telescopic cylinder 7 is fixed in the extension rod 41.

[0027] The extension rod 41 can be driven to extend or retract by the telescopic cylinder 7 to change the height.

[0028] In the embodiment, the two sliding blocks 5 located at the uppermost and lowermost positions in the sliding groove 42 are fixed to the upper end of the extension rod 41 and the lower end of the column 4, respectively.

[0029] Two cross-link rods 8 in an “X” shape are hinged in each sliding block 5, and the two cross-link rods 8 of adjacent sliding blocks 5 are hinged to each other.

[0030] When the extension rod 41 extends or retracts, the spacing between the two sliding blocks 5 at the uppermost and lowermost positions changes, and each sliding block 5 therebetween maintains the same spacing under the action of the cross-link rod 8, thereby automatically maintaining the uniformity of the vertical spacing of all the lasers 6, and realizing the real-time monitoring of high density and high consistency in full height self-adaptation.

[0031] In the embodiment, the laser 6 is rotatably arranged in the sliding block 5.

[0032] By rotating the laser 6, the inclination angle of the laser 6 to the road surface can be changed, so that the road surface at different distances can be aligned, and each measurement point can accurately and dynamically track the target road surface.

[0033] In the embodiment, the connecting rod 51 is fixed to one end of the rotating shaft of the laser 6, and the other end of each connecting rod 51 is hinged with a sliding sleeve 52.

[0034] One side of the column 4 is provided with a forwardly inclined guide shaft 9, and each sliding sleeve 52 is slidably arranged in the guide shaft 9.

[0035] That is, when the slider 5 slides upward, the corresponding sliding sleeve 52 will move away from the slider 5 due to the forward inclination of the guide shaft 9, so that the connecting rod 51 pulls the laser 6 to rotate horizontally, and vice versa, when the slider 5 slides downward, the laser 6 rotates downward vertically.

[0036] Under the action, it can ensure that the lasers 6 of different heights can adaptively change the inclination angle, so that each measuring point is uniformly distributed in the longitudinal direction of the road.

[0037] In this embodiment, one side of the stand 4 is fixed with a fixed rod 91, and the upper and lower ends of the fixed rod 91 are respectively fixed with horizontal rods 92, and the guide shaft 9 is arranged between the two horizontal rods 92.

[0038] In this embodiment, a through guide groove 93 is formed in the horizontal rod 92, a guide block 94 is slidably arranged in the guide groove 93, and the guide shaft 9 is slidably and rotatably penetrated through the guide block 94. The guide block 94 is loosely connected with the guide shaft 9 and the horizontal rod 92 through a locking screw.

[0039] That is, by adjusting the positions of the corresponding guide blocks 94 of the upper and lower horizontal rods 92 through the locking screw, the inclination angle of the guide shaft 9 can be changed, so that the angle change range of each laser 6 is changed to adapt to different longitudinal positions of the road.

[0040] In specific implementation, the telescopic cylinder 7 drives the extension rod 41 to lift and lower, and adjusts the total height of the stand 4 to adapt to different paving thicknesses or monitoring requirements. When the extension rod 41 is telescoped, all the sliders 5 in the middle are automatically kept at uniform vertical spacing through the hinged linkage of the cross connecting rod 8, so as to ensure the consistency of the distribution of the lasers 6.

[0041] When the slider 5 moves up and down along the stand, the hinged connecting rod 51 pushes the sliding sleeve 52 to slide along the inclined guide shaft 9. The sliding sleeve 52 corresponding to the high-position slider 5 moves away from the slider 5, and the connecting rod 51 pulls the laser 6 to rotate horizontally, thereby increasing the projection distance. The sliding sleeve 52 corresponding to the high-position slider 5 moves close to the slider 5, and the laser 6 rotates vertically, thereby reducing the projection distance, so as to ensure that each measuring point is uniformly distributed in the longitudinal direction of the road.

[0042] If it is necessary to adapt to a special road slope, the locking screw of the guide block 94 on the horizontal rod 92 can be loosened, the guide block 94 is slid to adjust the transverse position of the guide shaft 9, the guide shaft 9 changes the inclination angle, and after adjustment, the locking screw is locked to fix the posture of the guide shaft 9, so as to optimize the coverage range of the laser beam.

[0043] Through the control system, the trolley 3 is driven to move uniformly along the slide rail 2, all the lasers 6 on the stand are driven to scan the lane width synchronously, the multiple lasers are synchronously emitted, the elevation points at different positions in the longitudinal direction of the road surface are dynamically captured, high-density three-dimensional point cloud data are generated, and the high-density three-dimensional point cloud data are transmitted to a processing terminal in real time, the system automatically analyzes the point cloud data, calculates the flatness indexes such as IRI and standard deviation, and displays the value change curve and the color mapping diagram in real time on the operation interface.

[0044] The above merely describes a 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, according to the technical solution and the inventive concept of the present application, can make equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A real-time online measuring device for road construction, comprising two supports (1), characterized in that, Two said support (1) between the setting of slide rail (2), the slide rail (2) on the slide setting of the trolley (3), the trolley (3) is fixed with vertical column (4), the column (4) is distributed with a plurality of sliders (5), each said slider (5) is provided with laser (6).

2. A real-time online measuring device for road construction according to claim 1, characterized in that, The column (4) is slidably provided with an extension rod (41) capable of extending upward, and the column (4) and the extension rod (41) are provided with a sliding groove (42) on the front face, each said slider (5) is slidably connected to the sliding groove (42).

3. The real-time online measuring device for road construction according to claim 2, characterized in that, The column (4) is fixed with telescopic cylinder (7), the piston rod of the telescopic cylinder (7) is fixed in the extension rod (41).

4. The real-time online measuring device for road construction according to claim 2, characterized in that, The two sliders (5) located at the uppermost and lowermost positions in the sliding groove (42) are fixed to the upper end of the extension rod (41) and the lower end of the column (4), respectively. Each said slider (5) is hinged with two cross linkages (8) distributed in "X" shape, and the two cross linkages (8) staggered between adjacent sliders (5) are hinged with each other.

5. The real-time online measuring device for road construction of claim 1, wherein, The laser (6) is rotatably arranged in the slider (5).

6. A real-time online measuring device for road construction according to claim 5, characterized in that, One end of the shaft of the laser (6) is fixed with a connecting rod (51), and the other end of each said connecting rod (51) is hinged with a sliding sleeve (52). One side of the column (4) is provided with a forwardly inclined guide shaft (9), and each said sliding sleeve (52) is slidably arranged in the guide shaft (9).

7. The real-time online measuring device for road construction according to claim 6, characterized in that, One side of the column (4) is fixed with a fixed rod (91), and the upper and lower ends of the fixed rod (91) are respectively fixed with horizontal rods (92), and the guide shaft (9) is arranged between the two horizontal rods (92).

8. The real-time online measuring device for road construction according to claim 7, characterized in that, The horizontal rod (92) is provided with a through guide groove (93), and the guide groove (93) is slidably provided with a guide block (94), and the guide shaft (9) is slidably and rotatably penetrated through the guide block (94), and the guide block (94) is connected with the guide shaft (9) and the horizontal rod (92) by locking screw.

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