Roadbed pavement flatness detection device

Abstract

The utility model discloses a roadbed pavement flatness detection device which comprises L-shaped plates, vertical parts of opposite surfaces of the two L-shaped plates are hinged with first laser distance measuring sensors, and the upper surfaces of the first laser distance measuring sensors are hinged with angle adjusting pieces. The end, away from the first laser distance measuring sensor, of the angle adjusting part is hinged to the horizontal parts of the L-shaped plates, the upper surfaces of the horizontal parts of the two L-shaped plates are each provided with two sliding grooves, a plurality of sliding rails formed by splicing sliding rail assemblies are installed in the sliding grooves, and driving devices are slidably connected into the sliding rails; and a second laser distance measuring sensor is connected and fixed between the two driving devices. According to the utility model, the first laser distance measuring sensor is used for detecting rough data of pavement flatness, then the detected data is transmitted to the signal processing center, and the second laser distance measuring sensor is controlled to carry out detailed detection on an abnormal pavement, so that the use of the laser distance measuring sensors is saved.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of road surface detection, in particular to a roadbed and road surface flatness detection device. Background Art

[0002] The flatness of the roadbed and pavement refers to the deviation value of the longitudinal convexity of the road surface. It is one of the important technical indicators for evaluating the quality of the road surface. It is related to the safety and comfort of driving, as well as the impact force that the road surface can withstand and its service life. The uneven road surface will increase the driving resistance and cause additional vibration to the vehicle, which will not only affect the speed and safety of driving, but also affect the driving stability and the comfort of passengers.

[0003] In the prior art, a plurality of laser ranging sensors are installed at equal intervals on a detection vehicle. When the detection vehicle is traveling on the road, the laser ranging sensors acquire road surface data, and then the height data collected by the laser ranging sensors are connected into a road surface line, thereby detecting the flatness of the road surface. However, when the road surface is wide, a large number of laser ranging sensors are required, resulting in an increase in the detection cost. Therefore, a new roadbed and road surface flatness detection device is needed. Utility Model Content

[0004] The technical solution of the utility model aims at the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technology. It mainly provides a roadbed and pavement flatness detection device to solve the technical problem proposed in the above background technology that a large number of laser ranging sensors are needed for wider roads.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] A roadbed and pavement flatness detection device comprises an L-shaped plate arranged on the left side and the right side above the pavement, a length adjustment member is connected and fixed between the horizontal parts of the two L-shaped plates, a first laser ranging sensor tilted toward between the two L-shaped plates is hingedly connected to the vertical parts of the two opposite sides of the two L-shaped plates, an angle adjustment member is hingedly connected to the upper surface of the first laser ranging sensor, an end of the angle adjustment member away from the first laser ranging sensor is hingedly connected to the horizontal part of the L-shaped plate, two slide grooves are provided on the upper surfaces of the horizontal parts of the two L-shaped plates, a plurality of slide rails spliced ​​by slide rail assemblies are installed in the slide grooves, a driving device is slidably connected in the slide rails, and a second laser ranging sensor is connected and fixedly connected between the two driving devices.

[0007] Preferably, the length adjusting member includes a rectangular tube, which is located at the center between two L-shaped plates, and rectangular rods are inserted at both ends of the rectangular tube. The end of the rectangular rod away from the rectangular tube is connected and fixed to the vertical part of the L-shaped plate, and first threaded holes are opened on the left and right sides of the upper surface of the rectangular tube. The first threaded hole is threadedly connected with a first clamping screw for limiting the relative position of the rectangular rod in the rectangular tube.

[0008] Preferably, the angle adjustment member includes a pipe sleeve, which is hinged on the lower surface of the horizontal part of the L-shaped plate, and a connecting rod is inserted into the end of the pipe sleeve away from the L-shaped plate, and the end of the connecting rod away from the pipe sleeve is hinged to the first laser ranging sensor, and a second threaded hole is opened on the annular surface of the pipe sleeve, and a second clamping screw for limiting the relative position of the connecting rod in the pipe sleeve is threadedly connected to the second threaded hole.

[0009] Preferably, a support plate is connected and fixed to the lower surface of the L-shaped plate, a roller driven to move by a motor is connected and fixed to the side of the lower surfaces of the two support plates that are close to each other, an L-shaped tube is connected and fixed to the side of the lower surfaces of the two support plates that are opposite to each other, and a limiting piece is connected and fixed to the end of the L-shaped tube away from the support plate.

[0010] Preferably, the limiting member includes a push rod, which is inserted into an L-shaped tube, one end of the push rod in the L-shaped tube is connected and fixed with an elastic member, the end of the elastic member away from the push rod is connected and fixed in the L-shaped tube, and a circular hole is opened at the end of the push rod away from the L-shaped tube, a ball is rollingly connected in the circular hole, and the ball is in contact with the edge of the road surface.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. By setting L-shaped plates on both sides of the road and installing the first laser ranging sensor on the opposite side of the two L-shaped plates, the first laser ranging sensor is used to detect the rough data of the road surface flatness, and then the detected data is transmitted to the signal processing center, and the second laser ranging sensor is controlled to perform detailed detection of abnormal road surfaces, thereby saving the use of laser ranging sensors, and by installing a first laser ranging sensor on each side of the road, it is avoided that there is a large difference in the detected road surface flatness data due to the long distance on one side of the road.

[0013] 2. The first laser ranging sensor is connected to the horizontal part of the L-shaped plate through an angle adjustment structure composed of a pipe sleeve, a connecting rod and a second clamping screw. By adjusting the inclination angle of the first laser ranging sensor, the detectable range of the first laser ranging sensor is changed, so that the first laser ranging sensor can be used for roadbeds and pavements of different widths.

[0014] 3. By connecting and fixing a limiting structure composed of an L-shaped tube, a stop rod, a ball and an elastic member on the opposite side of the lower surface of the two support plates, the limiting structure is used to limit the position of the two L-shaped plates at the edge of the road surface to prevent the two L-shaped plates from being too far to the left or right and affecting the detection of the first laser ranging sensor.

[0015] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of assembling the L-shaped plate and the first laser ranging sensor of the utility model;

[0018] Figure 3 The utility model is a schematic diagram of the assembly of the support plate, L-shaped tube, elastic member, stop rod and ball.

[0019] 1. L-shaped plate; 2. Slide rail; 3. Driving device; 4. Second laser distance sensor; 5. Rectangular rod; 6. Rectangular tube; 7. First clamping screw; 8. Roller; 9. Support plate; 10. L-shaped tube; 11. Pipe sleeve; 12. Connecting rod; 13. Second clamping screw; 14. First laser distance sensor; 15. Elastic member; 16. Abutment rod; 17. Ball bearing. DETAILED DESCRIPTION

[0020] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0021] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field of the present invention. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] A roadbed and pavement flatness detection device includes an L-shaped plate 1 arranged on the left side and the right side above the pavement, a rectangular tube 6 is arranged between the horizontal parts of the two L-shaped plates 1, rectangular rods 5 are inserted at both ends of the rectangular tube 6, and the end of the rectangular rod 5 away from the rectangular tube 6 is connected and fixed to the vertical part of the L-shaped plate 1, and first threaded holes are opened on both sides of the upper surface of the rectangular tube 6, and the first threaded holes are threadedly connected to the first clamping screws 7 for limiting the relative position of the rectangular rod 5 in the rectangular tube 6.

[0024] A first laser ranging sensor 14 inclined toward between the two L-shaped plates 1 is hinged on the vertical portion of one side opposite to the two L-shaped plates 1, a connecting rod 12 is hinged on the upper surface of the first laser ranging sensor 14, an end of the connecting rod 12 away from the first laser ranging sensor 14 is sleeved with a pipe sleeve 11, an end of the pipe sleeve 11 away from the connecting rod 12 is hinged to the lower surface of the horizontal portion of the L-shaped plate 1, a second threaded hole is provided on the annular surface of the pipe sleeve 11, a second clamping screw 13 for limiting the relative position of the connecting rod 12 in the pipe sleeve 11 is threadedly connected in the second threaded hole.

[0025] The first laser ranging sensor 14 is connected to the horizontal part of the L-shaped plate 1 through an angle adjustment structure composed of a pipe sleeve 11, a connecting rod 12 and a second clamping screw 13. The inclination angle of the first laser ranging sensor 14 can be adjusted by adjusting the length of the connecting rod 12 in the pipe sleeve 11, thereby changing the detectable range of the first laser ranging sensor 14. The length of the rectangular rod 5 in the rectangular tube 6 is then adjusted to enable the first laser ranging sensor 14 to be used for roadbeds and pavements of different widths.

[0026] Two slide grooves are provided on the upper surfaces of the horizontal parts of the two L-shaped plates 1, and a plurality of slide rails 2 formed by slide rail assemblies are installed in the two slide grooves. The slide rails 2 are in a spliced ​​form, which is convenient for installation and disassembly when detecting road surfaces of different widths. A driving device 3 is slidably connected in the slide rails 2, and a second laser ranging sensor 4 is fixedly connected between the two driving devices 3.

[0027] By arranging L-shaped plates 1 on both sides of the road and installing first laser ranging sensors 14 on the opposite sides of the two L-shaped plates 1, the first laser ranging sensors 14 are used to detect rough data of the road surface flatness, and then the detected data is transmitted to the signal processing center, and the second laser ranging sensor 4 is controlled to perform detailed detection of abnormal road surfaces, thereby saving the use of laser ranging sensors, and by installing a first laser ranging sensor 14 on both sides of the road, it is avoided that there is a large difference in the detected road surface flatness data due to the long distance on one side of the road.

[0028] A fixed support plate 9 is connected to the lower surface of the L-shaped plate 1, and a roller 8 driven to move by a motor is fixedly connected to the side of the lower surfaces of the two support plates 9 that are close to each other. A battery is installed on the upper surface of the rectangular tube 6, and the battery provides power for the first laser ranging sensor 14, the second laser ranging sensor 4, the motor driving the roller 8 to rotate, and the driving device 3.

[0029] An L-shaped cylinder 10 is connected and fixed on the side opposite to each other on the lower surfaces of the two support plates 9, and a push rod 16 is inserted into the end of the L-shaped cylinder 10 away from the support plate 9. An elastic member 15 is connected and fixed to one end of the push rod 16 in the L-shaped cylinder 10. The elastic member 15 is a spring. The elastic member 15 is in a normal state. The end of the elastic member 15 away from the push rod 16 is connected and fixed in the L-shaped cylinder 10. A circular hole is provided at the end of the push rod 16 away from the L-shaped cylinder 10. A ball 17 is rolled and connected in the circular hole, and the ball 17 contacts the edge of the road surface.

[0030] By connecting and fixing a limiting structure composed of an L-shaped cylinder 10, a stop rod 16, a ball 17 and an elastic member 15 on the opposite side of the lower surface of the two support plates 9, when the roller 8 moves to the left or right side of the road surface, the limiting structure restricts the roller 8 from moving toward the edge of the road surface, thereby preventing the two L-shaped plates 1 from being too close to the left or right and affecting the detection of the first laser ranging sensor 14.

[0031] The specific operation process of the utility model is as follows: the motor is started to drive the roller 8 to rotate, thereby driving the two first laser ranging sensors 14 to move and detect the road surface. When the road surface is flat, the road surface detected by the two first laser ranging sensors 14 is a straight line. The two first laser ranging sensors 14 are arranged on both sides of the road surface to avoid detection errors caused by the long distance when one of the first laser ranging sensors 14 detects the other side of the road surface. At the same time, the position of the two first laser ranging sensors 14 on the road surface is limited by a limiting structure composed of an L-shaped cylinder 10, a stop rod 16, a ball 17 and an elastic member 15 to avoid errors in the detection range of the first laser ranging sensors 14.

[0032] When the road surface is concave or convex, the road surface between the two first laser ranging sensors 14 detects a non-straight line, and the information is transmitted to the second laser ranging sensor 4, which moves to the position for detailed detection, thereby saving the use of laser ranging sensors.

[0033] The above description of the utility model in combination with the accompanying drawings is an exemplary description. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as the non-substantial improvements are made by adopting the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A roadbed and pavement flatness detection device, comprising an L-shaped plate (1) arranged on the left side above the road surface and on the right side above the road surface, characterized in that: A length adjustment member is connected and fixed between the horizontal parts of the two L-shaped plates (1); a first laser distance measuring sensor (14) tilted toward between the two L-shaped plates (1) is hingedly connected to the vertical parts of the two L-shaped plates (1) facing each other; an angle adjustment member is hingedly connected to the upper surface of the first laser distance measuring sensor (14); an end of the angle adjustment member away from the first laser distance measuring sensor (14) is hingedly connected to the horizontal part of the L-shaped plate (1); two slide grooves are provided on the upper surfaces of the horizontal parts of the two L-shaped plates (1); a plurality of slide rails (2) assembled from slide rail assemblies are installed in the slide grooves; a driving device (3) is slidably connected in the slide rail (2); and a second laser distance measuring sensor (4) is connected and fixedly connected between the two driving devices (3).

2. A roadbed and pavement flatness detection device according to claim 1, characterized in that: The length adjusting member comprises a rectangular tube (6), the rectangular tube (6) being located at the center between the two L-shaped plates (1), rectangular rods (5) being inserted at both ends of the rectangular tube (6), one end of the rectangular rod (5) being away from the rectangular tube (6) being connected and fixed to the vertical portion of the L-shaped plate (1), first threaded holes being provided on both left and right sides of the upper surface of the rectangular tube (6), first clamping screws (7) being threadedly connected in the first threaded holes for limiting the relative position of the rectangular rod (5) in the rectangular tube (6).

3. A roadbed and pavement flatness detection device according to claim 1, characterized in that: The angle adjustment member comprises a pipe sleeve (11), the pipe sleeve (11) being hinged on the lower surface of the horizontal portion of the L-shaped plate (1), a connecting rod (12) being inserted into one end of the pipe sleeve (11) away from the L-shaped plate (1), an end of the connecting rod (12) away from the pipe sleeve (11) being hinged to a first laser distance measuring sensor (14), a second threaded hole being provided on an annular surface of the pipe sleeve (11), a second clamping screw (13) being threadedly connected in the second threaded hole and used for limiting the relative position of the connecting rod (12) in the pipe sleeve (11).

4. A roadbed and pavement flatness detection device according to claim 1, characterized in that: A support plate (9) is connected and fixed to the lower surface of the L-shaped plate (1); a roller (8) driven to move by a motor is connected and fixed to the sides of the lower surfaces of the two support plates (9) that are close to each other; an L-shaped cylinder (10) is connected and fixed to the sides of the lower surfaces of the two support plates (9) that are away from each other; and a limiting member is connected and fixed to one end of the L-shaped cylinder (10) that is away from the support plate (9).

5. A roadbed and pavement flatness detection device according to claim 4, characterized in that: The limiting member comprises a push rod (16), the push rod (16) being inserted into the L-shaped tube (10), one end of the push rod (16) in the L-shaped tube (10) being connected and fixed with an elastic member (15), one end of the elastic member (15) away from the push rod (16) being connected and fixed in the L-shaped tube (10), a circular hole being formed at one end of the push rod (16) away from the L-shaped tube (10), a ball (17) being rollingly connected in the circular hole, and the ball (17) being in contact with an edge of a road surface.

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