Engineering measurement pavement flatness detection device

Abstract

The utility model relates to the field of road surface detection, and discloses an engineering measurement road surface flatness detection device which comprises a rack, the left end and the right end of the rack are fixedly connected with cross beams, the front side and the rear side of each cross beam are fixedly connected with two metal sheets, and a round rod is rotationally connected between the two metal sheets. A rubber tire is fixedly connected to the outer wall of the round rod, a sweeping assembly used for sweeping the road surface is arranged between the two metal sheets, a fixing plate is fixedly connected to the bottom side of the rack, a laser distance measuring sensor is installed on the bottom side of the fixing plate, and a protection shell used for protecting the laser distance measuring sensor is connected to the bottom side of the fixing plate in an inserted mode. A fixing assembly used for fixing the protective shell is arranged in the fixing plate. According to the utility model, sundries such as gravels on the road surface are cleaned, and the influence of the sundries on detection is prevented, so that the detection accuracy is improved, the laser distance measuring sensor is protected, and the laser distance measuring sensor is prevented from being impacted by external objects to be damaged in the measurement process.

Description

TECHNICAL FIELD

[0001] The utility model relates to the road surface detection field especially relates to engineering survey road surface flatness detection device. BACKGROUND

[0002] Road surface detection is an important work to guarantee road quality and safety. It quantitatively evaluates road surface conditions with specific equipment and technology. For example, continuous flatness detector, through the determination wheel, laser range finder and other sensors collect road surface relative elevation data, and the acquisition control box collects and processes these data, calculates key indicators such as standard deviation, and can also store and output data, generate detection report and flatness deviation curve, so as to fully understand the flatness and other performances of the road surface, find out the problems of the road surface in time, and provide scientific basis for the maintenance, repair and quality control of the newly built road.

[0003] However, the current road surface flatness detection device has the following defects: easy to be disturbed by sundries: the current road surface flatness detection device has short board when facing road surface gravel and other sundries, and the sundries will affect the detection accuracy, such as causing the measurement data to deviate, which cannot truly reflect the road surface flatness, so that the detection result is unreliable, and the subsequent road evaluation and maintenance basis is wrong. Insufficient protection of sensor: the laser ranging sensor lacks effective protection, and is easy to be hit by external objects during measurement. Once damaged, not only the maintenance cost is high and time-consuming, but also the detection process is interrupted, and the road detection work is delayed;

[0004] Therefore, in view of the technical problems, the utility model provides an engineering survey road surface flatness detection device. UTILITY MODEL CONTENTS

[0005] The utility model discloses a kind of engineering survey road surface flatness detection devices, to solve the problems that cannot be swept in the prior art during detection, the accuracy of the detection is affected by the gravel and other sundries of road surface, and the laser ranging sensor lacks protection and is easy to be damaged, the gravel and other sundries of road surface are swept, to prevent these objects from affecting detection, so as to improve the accuracy of detection, and provide protection for laser ranging sensor, prevent from being damaged by external object impact during measurement.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] The utility model discloses an engineering survey road surface flatness detection device, including the frame, both ends of frame are fixedly connected with crossbeam, the front and back sides of crossbeam are fixedly connected with two metal sheets, and the rotatable connection of two metal sheets has a round rod, and the outer wall of round rod is fixedly connected with rubber tire.

[0008] Further, the sweeping assembly includes a reciprocating screw rod and a limiting rod arranged between the front and rear metal sheets, the reciprocating screw rod is rotatably connected between the front and rear metal sheets, and the limiting rod is fixedly connected between the front and rear metal sheets.

[0009] Further, the reciprocating screw rod is fixedly connected between the front and rear round rods, and the reciprocating screw rod and the limiting rod are connected through a scraper and a collecting groove.

[0010] Further, one end of the scraper is threadedly connected to the outer wall of the reciprocating screw rod, the other end of the scraper is slidably connected to the outer wall of the limiting rod, one end of the collecting groove is rotatably connected to the outer wall of the reciprocating screw rod, and the other end of the collecting groove is fixedly connected to the outer wall of the limiting rod.

[0011] Further, the fixing assembly includes a through groove formed in the inner portion of the fixing plate, a sliding plate is slidably connected in the through groove, a buckle plate is rotatably connected to the top side of the sliding plate, an insertion slot is formed in the top side of the sliding plate, and an annular groove is formed in the inner portion of the insertion slot.

[0012] Further, the bottom side of the buckle plate is fixedly connected with an insertion rod, the outer wall of the insertion rod is fixedly connected with a buckle ring, the insertion rod is inserted into the insertion slot, and the buckle ring is clamped in the annular groove.

[0013] Further, the top side of the protection shell is fixedly connected with a clamping plate, and the clamping plate is clamped between the sliding plate and the buckle plate.

[0014] Further, the top side of the frame is provided with a detection control box.

[0015] The utility model has the advantages of the following:

[0016] In the utility model, the reciprocating screw rod drives the scraper to move, the scraper collects the gravel and other sundries on the road surface into the collecting groove, prevents the sundries from affecting the detection, and sweeps the road surface to improve the road cleanliness and the detection accuracy.

[0017] The utility model discloses, through the clamping plate fixed between the buckle plate and slide plate, and then prevent the protection shell from falling off from the fixed plate, thereby the protection shell is laser ranging sensor provides protection, prevents the damage of the outside object impact in the measurement process. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model discloses an engineering survey road surface flatness detection device's perspective view is provided for the utility model;

[0019] Figure 2 The utility model discloses an engineering survey road surface flatness detection device's scraper structure schematic view is provided for the utility model;

[0020] Figure 3 The utility model discloses an engineering survey road surface flatness detection device's fixed plate bottom view is provided for the utility model;

[0021] Figure 4 The utility model discloses an engineering survey road surface flatness detection device's fixed plate top view is provided for the utility model;

[0022] Figure 5 The utility model discloses an engineering survey road surface flatness detection device's protection shell structure schematic view is provided for the utility model;

[0023] Figure 6 The utility model discloses an engineering survey road surface flatness detection device's slide plate structure schematic view is provided for the utility model.

[0024] Legend:

[0025] 1, detection control box;2, fixed plate;3, rack;4, reciprocating screw;5, rubber tire;6, crossbeam;7, metal sheet;8, protection shell;9, limit rod;10, scraper;11, round bar;12, laser ranging sensor;13, clamping plate;14, slide plate;15, buckle plate;16, plug rod;17, buckle ring;18, cleaning component;19, fixed component;20, collection groove. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of the utility model protection.

[0027] Reference Figures 1-3The utility model provides an embodiment: engineering survey road surface flatness detection device, the left and right two ends of frame 3 all are fixedly connected with crossbeam 6, the front and back two sides of crossbeam 6 all are fixedly connected with two metal sheets 7, and the rotatable connection of two metal sheets 7 between has round bar 11, and the outer wall fixed connection of round bar 11 has rubber tire 5, and the cleaning assembly 18 for cleaning road surface is set up between two metal sheets 7, and the bottom side fixed connection of frame 3 has fixed plate 2, and the bottom side mounting of fixed plate 2 has laser ranging sensor 12, and the laser beam is vertically shot to road surface through laser ranging sensor 12, and laser ranging sensor 12 receives reflected light signal in real time, and according to the propagation time or phase change of light, the distance of laser ranging sensor 12 to road surface is accurately calculated, through the real -time collection and analysis of these distance data, the moving speed and displacement information of device are combined, utilize the built -in professional algorithm, can the flatness index of road surface be accurately obtained, and the bottom side of fixed plate 2 is inserted and is connected for the protection shell 8 for protecting laser ranging sensor 12, and the protection shell 8 is made of transparent material to avoid the influence of the measurement work of laser ranging sensor 12, and the inside of fixed plate 2 is provided with the fixed assembly 19 for fixed protection shell 8, and the cleaning assembly 18 includes the reciprocating screw rod 4 and the limit rod 9 between the front and back two metal sheets 7, and the reciprocating screw rod 4 rotatable connection is between the front and back two metal sheets 7, and the limit rod 9 fixedly connected between the front and back two metal sheets 7, and the reciprocating screw rod 4 fixedly connected between the front and back two round bars 11, and the rotation of rubber tire 5 drives round bar 11 to rotate, thereby making round bar 11 take reciprocating screw rod 4 and rotate, and the scraping plate 10 and the collection groove 20 are connected between reciprocating screw rod 4 and limit rod 9, and one end of scraping plate 10 is screw connected on the outer wall of reciprocating screw rod 4, and the other end of scraping plate 10 is slidably connected on the outer wall of limit rod 9, and one end of collection groove 20 is rotatable connected on the outer wall of reciprocating screw rod 4, and the other end of collection groove 20 is fixedly connected on the outer wall of limit rod 9, and the movement of scraping plate 10 is driven by reciprocating screw rod 4, so that scraping plate 10 scrapes the gravel or some sundries on road surface into collection groove 20 to collect, prevents these objects from causing influence to detection, and the road surface is simply cleaned to improve road neatness.

[0028] Refer to Figures 4-6The fixing component 19 includes a through groove inside the fixing plate 2, with a sliding plate 14 slidably connected inside the through groove to seal it. A snap-fit ​​plate 15 is rotatably connected to the top side of the sliding plate 14, and a slot is provided on the top side of the sliding plate 14. An annular groove is provided inside the slot. A rod 16 is fixedly connected to the bottom side of the snap-fit ​​plate 15, and a snap-fit ​​ring 17 is fixedly connected to the outer wall of the rod 16. The rod 16 is inserted into the slot, and the snap-fit ​​ring 17 engages inside the annular groove. By inserting the rod 16 into the slot, the snap-fit ​​ring 17 engages with the annular groove, thereby connecting the snap-fit ​​plate 15 and the sliding plate 14. A snap-fit ​​plate 13 is fixedly connected to the top side of the protective shell 8, engaging between the sliding plate 14 and the snap-fit ​​plate 15. Engaging the snap-fit ​​plate 13 between the sliding plate 14 and the snap-fit ​​plate 15 prevents the protective shell 8 from falling off. (Refer to...) Figure 1 The top side of the frame 3 is equipped with a detection control box 1. The detection control box 1 integrates a series of complex and precise electronic components and circuit systems. One of the core components is the data acquisition module, which acts as a sensitive "information capture device" and can quickly and accurately receive the road surface relative elevation data transmitted from the ground elevation measurement laser range sensor 12. This data is efficiently acquired in the form of electrical signals, providing the original basis for subsequent analysis and processing. At the same time, the device travel distance information generated by the distance laser range sensor 12 is also transmitted to the detection control box 1 to accurately determine the measurement position and calculate the measurement range.

[0029] Working principle: first, the protective shell 8 is inserted into the fixed plate 2, at this time, the clamping plate 13 will pass through the through slot to the upper side of the fixed plate 2, then slide the sliding plate 14 to slide to the lower side of the clamping plate 13 and seal the through slot, then clamp the clamping plate 13 to the sliding plate 14, then rotate the buckle plate 15 to make the insertion rod 16 inserted into the insertion slot so that the buckle ring 17 is clamped into the annular groove, thereby connecting the buckle plate 15 and the sliding plate 14, thereby fixing the clamping plate 13 between the buckle plate 15 and the sliding plate 14, thereby preventing the protective shell 8 from falling off the fixed plate 2, thereby protecting the protective shell 8 for the laser ranging sensor 12, preventing damage caused by external objects during measurement, then connect the rack 3 to the tractor, or drive it by manpower, during the movement of the device, the laser ranging sensor 12 vertically emits laser beam to the road surface, the laser ranging sensor 12 receives reflected light signal in real time, then feeds back the collected information to the detection control box 1, so that the detection control box 1 analyzes the data, thereby completing the road surface flatness detection work, during the movement of the device, the rubber tire 5 will rotate to drive the round rod 11 to rotate, thereby driving the reciprocating wire rod 4 to rotate, so that the reciprocating wire rod 4 drives the scraper 10 to move, so that the scraper 10 scrapes the gravel or some sundries on the road surface into the collecting groove 20 for collection, preventing these objects from affecting the detection, and simply sweeping the road surface to improve the road surface cleanliness.

[0030] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for some technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A road surface smoothness testing device for engineering surveying, characterized in that: The machine includes a frame (3), with crossbeams (6) fixedly connected to both the left and right ends of the frame (3). Two metal plates (7) are fixedly connected to the front and rear sides of the crossbeams (6). A round rod (11) is rotatably connected between the two metal plates (7). A rubber tire (5) is fixedly connected to the outer wall of the round rod (11). A sweeping assembly (18) for sweeping the road surface is provided between the two metal plates (7). A fixing plate (2) is fixedly connected to the bottom side of the frame (3). A laser rangefinder (12) is installed on the bottom side of the fixing plate (2). A protective shell (8) for protecting the laser rangefinder (12) is inserted into the bottom side of the fixing plate (2). A fixing assembly (19) for fixing the protective shell (8) is provided inside the fixing plate (2).

2. The engineering survey road surface smoothness detection device according to claim 1, characterized in that: The cleaning assembly (18) includes a reciprocating screw (4) and a limiting rod (9) disposed between the front and rear metal plates (7). The reciprocating screw (4) is rotatably connected between the front and rear metal plates (7), and the limiting rod (9) is fixedly connected between the front and rear metal plates (7).

3. The engineering survey road surface smoothness detection device according to claim 2, characterized in that: The reciprocating lead screw (4) is fixedly connected between the two round rods (11) at the front and rear. The reciprocating lead screw (4) and the limiting rod (9) are connected by a scraper (10) and a collection groove (20).

4. The engineering survey road surface smoothness detection device according to claim 3, characterized in that: One end of the scraper (10) is threaded to the outer wall of the reciprocating screw (4), and the other end of the scraper (10) is slidably connected to the outer wall of the limiting rod (9). One end of the collecting groove (20) is rotatably connected to the outer wall of the reciprocating screw (4), and the other end of the collecting groove (20) is fixedly connected to the outer wall of the limiting rod (9).

5. The engineering survey road surface smoothness detection device according to claim 1, characterized in that: The fixing component (19) includes a through groove inside the fixing plate (2), a sliding plate (14) is slidably connected inside the through groove, a buckle plate (15) is rotatably connected to the top side of the sliding plate (14), a slot is provided on the top side of the sliding plate (14), and an annular groove is provided inside the slot.

6. The engineering survey road surface smoothness detection device according to claim 5, characterized in that: A rod (16) is fixedly connected to the bottom side of the buckle plate (15), and a buckle ring (17) is fixedly connected to the outer wall of the rod (16). The rod (16) is inserted into the slot, and the buckle ring (17) is engaged in the annular groove.

7. The engineering survey road surface smoothness detection device according to claim 6, characterized in that: The top side of the protective shell (8) is fixedly connected to a card plate (13), which is engaged between the sliding plate (14) and the buckle plate (15).

8. The engineering survey road surface smoothness detection device according to claim 1, characterized in that: The top side of the frame (3) is provided with a detection control box (1).

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