Device for detecting flatness of junction surface of road and bridge

Abstract

The utility model discloses a road and bridge joint surface flatness detection device, and particularly relates to the technical field of road and bridge flatness detection, the road and bridge joint surface flatness detection device comprises a laser detector assembled at the front part of a vehicle, an emission unit arranged on the laser detector and facing the road surface, and a shovel plate arranged on the laser detector and located at the forward side of the vehicle; the fixed plate is movably assembled on the shovel plate; the cleaning roller is arranged on the fixed plate and is used for turning sundries on the road surface; the turning plate is rotationally arranged on the back side of the shovel plate, and the turning plate and the shovel plate define an air outlet channel with the adjustable opening degree. According to the road and bridge joint surface flatness detection device, sundries on the road surface are swept through combination of the shovel plate and the cleaning roller, then air is supplied to the road surface through the air outlet channel, the effect of accelerating water evaporation is achieved while the road surface is further swept, laser scattering caused by residual accumulated water is avoided, and the laser detection accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the field of road and bridge flatness detection technology, specifically to a device for detecting the flatness of the road and bridge interface. Background Technology

[0002] The design and use of road-bridge joint surface smoothness testing devices are crucial for ensuring the smoothness of the road-bridge connection. These devices are typically used to inspect the smoothness of the road-bridge joints to ensure driving safety and comfort. They generally use a laser detector to scan the road surface to obtain a smoothness map.

[0003] Based on the publication (announcement) number CN215930821U, published (announcement) date 2022-03-01, a road and bridge flatness testing device is disclosed, including a placement box, a fixed seat on one side of the placement box, an installation block fixedly connected to one side of the fixed seat, an installation groove for cooperating with the installation block on one side of the placement box, a locking block slidably connected inside the placement box, a fixing groove for cooperating with the locking block on one side of the installation block, a sliding block slidably connected to the outside of the fixed seat, and an infrared rangefinder at the bottom of the sliding block; the device facilitates the replacement of the fixed seat by setting up the installation block, installation groove, locking block, fixing groove, connecting rod, connecting block and transmission block; and facilitates the testing of road and bridge flatness by setting up the sliding block, infrared rangefinder, level, electric telescopic rod and lifting plate, making it highly practical.

[0004] However, in the prior art, including the aforementioned patent, debris such as stones and fallen leaves on the road surface can also be scanned and recorded by the infrared rangefinder, which will affect the final accuracy. Utility Model Content

[0005] The purpose of this invention is to provide a device for detecting the flatness of the road and bridge interface, in order to solve the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a road and bridge joint surface flatness detection device, including a laser detector mounted on the front of a vehicle and a transmitting unit set on the laser detector and facing the road surface, including a shovel plate set on the laser detector and located on the forward side of the vehicle;

[0007] The mounting plate is mounted on the shovel plate.

[0008] A cleaning roller mounted on a fixed plate and used to turn over and throw away road debris;

[0009] Rotate the flap located on the back of the shovel plate, which together with the shovel plate forms an adjustable air outlet channel.

[0010] As preferred, a transmission wheel is rotatably arranged on the fixed plate and abuts against the road surface.

[0011] As preferred, a plurality of blades are arranged on the cleaning roller in a circumferential array, and the lowest point of the blades is 1-2 cm higher than the road surface, and the tangent direction of the cleaning roller at the lowest point is consistent with the direction of vehicle travel.

[0012] As preferred, a second gear is fixedly arranged on the cleaning roller, and a first gear is rotatably arranged on the fixed plate and in meshing transmission with the second gear.

[0013] The first gear is synchronously movable with the transmission wheel.

[0014] As preferred, a retention plate is obliquely arranged on the shovel plate and used for clamping the fixed plate.

[0015] As preferred, the cleaning roller has a working position abutting against the inclined surface of the retention plate.

[0016] As preferred, a spring is arranged between the turning plate and the shovel plate.

[0017] As preferred, a scraping plate is arranged on the turning plate and used for intermittently scraping the road surface.

[0018] As preferred, an air outlet is arranged on the bottom surface of the emission unit in parallel.

[0019] As preferred, a fender is fixedly arranged on the side surface of the fixed plate.

[0020] In the above technical solution, the road and bridge joint surface flatness detection device has the following beneficial effects: the combination of the shovel plate and the cleaning roller can clean the sundries on the road surface, and then the air outlet can blow air to the road surface, so that the road surface is further cleaned and the evaporation of water is accelerated, the residual water is avoided to cause laser scattering, and the accuracy of laser detection is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0022] Figure 1 The overall three-dimensional schematic view is provided for the embodiments of the present application.

[0023] Figure 2 The shovel plate and cleaning roller structure schematic view is provided for the embodiments of the present application.

[0024] Figure 3 The fixed plate and the first gear and the second gear structure schematic view provided by the embodiment of the utility model;

[0025] Figure 4 The flap and the air outlet structure schematic view provided by the embodiment of the utility model.

[0026] Mark explanation:

[0027] 1, laser detector; 11, transmitting unit; 2, shovel plate; 21, retention plate; 22, wing plate; 3, cleaning roller; 4, fixed plate; 41, mudguard; 42, clamping piece; 43, first gear; 44, second gear; 5, transmission wheel; 6, flap; 61, scraper; 62, spring; 7, air outlet. Specific implementation

[0028] In order to make the technical personnel in the field better understand the technical scheme of the utility model, the utility model will be further introduced in detail below in conjunction with the drawings.

[0029] As Figures 1-4 Indicated, a road and bridge joint surface flatness detection device, including being assembled in the front of vehicle laser detector 1 and being set on laser detector 1, and towards the transmitting unit 11 of road surface, including being set on laser detector 1, and being located in the shovel plate 2 of vehicle advancing side;

[0030] The fixed plate 4 movably assembled on the shovel plate 2;

[0031] The cleaning roller 3 for throwing road surface sundries is set on the fixed plate 4;

[0032] The flap 6 rotatably set on the back side of shovel plate 2, which forms the adjustable opening degree of air outlet passage with shovel plate 2.

[0033] Specifically, the height of shovel plate 2 is higher than the road surface 3-4cm, for shoveling larger stone and sundries on the road surface, through the fixed plate 4, the cleaning roller 3 is assembled on the front side of shovel plate 2, can be driven by setting the driving motor to rotate or make the cleaning roller 3 and road surface abut, in the process of vehicle travel, drive the cleaning roller 3 to rotate, clean the road surface.

[0034] Further, it further includes the air supply unit for supplying air to the air outlet passage, and the above-mentioned electronic element is the technical knowledge known to the technical personnel in the field, which will not be repeated here. The angle between the flap 6 and the shovel plate 2 is adjusted in conjunction with the actual road surface, thereby adjusting the opening degree of the air outlet passage, the air outlet passage supplies air to the road surface, further cleans the road surface while accelerating the evaporation of water, avoids residual water to cause laser scattering.

[0035] In the above technology, the debris on the road surface is swept by the combination of the shovel plate 2 and the cleaning roller 3, and then the road surface is blown by the air outlet channel, which further sweeps the road surface and accelerates the evaporation of water, thereby avoiding the residual water from causing laser scattering and improving the accuracy of laser detection.

[0036] As a further provided embodiment of the utility model, a transmission wheel 5 is rotatably arranged on the fixed plate 4 and abuts against the road surface.

[0037] Specifically, the transmission wheel 5 is located at the front middle part of the fixed plate 4, and the vertical projection of the transmission wheel 5 and the laser detector 1 is a triangular stable structure, which can improve the stability of the laser detector 1 and reduce the shaking caused by insufficient stability. Since the transmission wheel 5 is arranged on the fixed plate 4, and the fixed plate 4 is movably assembled, the transmission wheel 5 can be disassembled or repaired by only removing the fixed plate 4 when maintenance is needed, which is convenient for long-term use.

[0038] As a further provided embodiment of the utility model, a plurality of blades are arranged on the cleaning roller 3 in a circumferential array, and the lowest point of the blade is 1-2 cm higher than the road surface, and the tangent direction of the cleaning roller 3 at the lowest point is consistent with the vehicle travel direction.

[0039] Specifically, the blade has a circular arc structure and the concave surface faces the front side of the vehicle. The cleaning roller 3 drives the plurality of blades to rotate in the rotating process, and the blades do not directly contact the road surface, thereby avoiding interference with the normal travel of the vehicle. In addition, a small air flow is formed during the rotation of the blade, and the pressure difference formed under the differential speed of the air flow will attract the nearby debris to be adsorbed on the blade. When debris such as fallen leaves appears on the road surface, the blade will first contact the lowest point of the blade, and at this time, the tangent direction of the blade is towards the front side, so that the debris can be scooped up and enter the concave surface.

[0040] As a further provided embodiment of the utility model, a second gear 44 is fixedly arranged on the cleaning roller 3, and a first gear 43 is rotatably arranged on the fixed plate 4 and is in meshing transmission with the second gear 44.

[0041] The first gear 43 and the transmission wheel 5 keep synchronous movement.

[0042] Specifically, the transmission wheel 5 is in transmission connection with the first gear 43 through a transmission belt. When the vehicle travels, the transmission wheel 5 is tangent to the ground and rotates to drive the transmission belt to move synchronously. At this time, the tangent direction of the transmission wheel 5 at the lowest point is towards the rear side of the vehicle, thereby driving the first gear 43 to rotate synchronously and in the same direction. The first gear 43 drives the second gear 44 to rotate at the same time and in the opposite direction, and the cleaning roller 3 is driven to rotate by the second gear 44. At this time, the tangent direction of the cleaning roller 3 at the lowest point is opposite to that of the transmission wheel 5, i.e. towards the front side of the vehicle.

[0043] As further provided by the utility model, the shovel plate 2 is provided with a retention plate 21 for clamping and fixing the fixed plate 4.

[0044] Specifically, the fixed plate 4 is provided with clamping pieces 42 on both sides for clamping the retention plate 21. Figure 3 As shown in the figure, when assembling the fixed plate 4, the clamping pieces 42 are only required to correspond to the retention plate 21, and the fixed plate 4 is locked with the retention plate 21 under the action of gravity, so that the assembly is relatively simple. In addition, there is an included angle between the retention plate 21 and the shovel plate 2, after the debris is scooped into the recess by the cleaning roller 3 and rotated, the debris will automatically fall along the side surface of the blade into the shovel plate 2, and then be retained by the retention plate 21 and not fall on the ground again.

[0045] As further provided by the utility model, the cleaning roller 3 has a working position for abutting against the inclined surface of the retention plate 21.

[0046] Specifically, the angle between the inclined surface of the retention plate 21 and the tangent of the cleaning roller 3 at the position is consistent, so that the cleaning roller 3 slides along the inclined surface when rotating to the retention plate 21, avoiding the interference of the retention plate 21 with the normal operation of the cleaning roller 3. In addition, the blade of the cleaning roller 3 has a tip, when the blade rotates to the working position, the tip abuts against the inclined surface, so that the blade slightly deforms and bends, and when the blade rotates away from the working position, the tip is no longer pressed by the inclined surface, at this time, the deformation potential energy of the blade is released to produce shaking, and the dust on the blade is shaken off.

[0047] As further provided by the utility model, the spring 62 is arranged between the turning plate 6 and the shovel plate 2.

[0048] Specifically, the spring 62 is arranged to keep the turning plate 6 and the shovel plate 2 at a fixed distance. During the driving of the vehicle, the vehicle will shake, so that the shovel plate 2 shakes, at this time, the spring 62 reduces the influence of the shaking on the turning plate 6, avoiding the damage of the turning plate 6 caused by excessive shaking.

[0049] As further provided by the utility model, the turning plate 6 is provided with a scraping plate 61 for intermittently scraping the road surface.

[0050] Specifically, the spring 62 in the default state is used to make the flap 6 and the shovel plate 2 close to each other, the length of the scraper 61 is greater than the distance between the shovel plate 2 and the ground, so that the scraper 61 abuts against and scrapes the ground, and the scraper 61 is made of rubber and flexible. During the vehicle driving, the scraper 61 swings under the friction of the ground, thereby driving the flap 6 to swing downward against the elastic force of the spring 62, the opening of the air outlet channel is increased, and the spring 62 is stretched to store energy. When the flap 6 swings to a certain angle, the scraper 61 is no longer in contact with the ground, at this time, the flap 6 loses the friction force of the ground, so that the flap 6 is close to the shovel plate 2 again under the elastic release of the spring 62, the opening of the air outlet channel is reduced, and the above process makes the opening of the air outlet channel increase and decrease intermittently, and the corresponding airflow changes periodically, the airflow changes greatly, compared with the stable airflow, the airflow with changes has better air supply effect on the dust and water on the ground due to the turbulent flow effect.

[0051] As further provided in another embodiment of the utility model, the air outlet 7 is arranged in parallel to the bottom surface of the emitting unit 11.

[0052] Specifically, the air outlet 7 is connected with the ventilation pipeline by a communication pipe. The airflow blown out of the air outlet 7 is parallel to the bottom surface of the emitting unit 11, so that the airflow forms a stable horizontal laminar flow, which can avoid dust sticking to the camera of the emitting unit 11 and accelerate the evaporation of water vapor to avoid the water vapor entering the emitting unit 11 to corrode the electronic elements.

[0053] As further provided in another embodiment of the utility model, the fixed plate 4 is provided with a mud guard 41 on the side surface.

[0054] Specifically, the shovel plate 2 is provided with wing plates 22 on both sides for shielding the flap 6, so as to form an air outlet channel, and the flap 6 is intermittently opened, which can effectively avoid the blockage caused by the entry of mud and sand. The mud guard 41 is used for shielding the first gear 43 and the second gear 44, which can avoid the mixture of sundries into the fixed plate 4 during the cleaning process of the cleaning roller 3, protect the first gear 43 and the second gear 44, and avoid interfering with the normal operation of the cleaning roller 3.

[0055] Working principle: when the vehicle is driving, the transmission wheel 5 is tangent to the ground and rotates downward to drive the transmission belt to move synchronously, at this time, the tangent direction of the transmission wheel 5 at the lowest point is towards the rear side of the vehicle, thereby driving the first gear 43 to rotate synchronously and in the same direction, the first gear 43 drives the second gear 44 to rotate at the same time and in the opposite direction, and the second gear 44 drives the cleaning roller 3 to rotate, at this time, the tangent direction of the cleaning roller 3 at the lowest point is opposite to the transmission wheel 5, that is, towards the front side of the vehicle.

[0056] The cleaning roller 3 drives the plurality of blades to rotate during rotation, and does not directly contact the road surface, avoiding interference with the normal travel of vehicles, and the blades form a small air flow during rotation, and the pressure difference formed under the differential speed of the air flow will attract nearby debris to be adsorbed on the blades, and when leaves and other debris appear on the road surface, the debris will first contact the lowest point of the blades, and the debris can be scooped up and made to enter the concave surface.

[0057] After the cleaning roller 3 scoops the debris into the concave portion and rotates, the debris will automatically fall along the side surface of the blade into the shovel plate 2 after rotating through the highest point, and then be retained by the retention plate 21 and not fall on the ground again, and the blade of the cleaning roller 3 has a sharp end, which abuts against the inclined surface when the blade rotates to the working position, causing the blade to slightly deform and bend, and when the blade rotates away from the working position, the blade is no longer pressed by the inclined surface, and at this time, the potential energy of the deformed blade is released to produce a shaking motion, which shakes off the dust and other debris on the blade.

[0058] At the same time, the scraper 61 swings under the friction force of the ground, thereby driving the turning plate 6 to swing downward against the elastic force of the spring 62, the opening of the air outlet channel is increased, and the spring 62 is stretched to store energy. When the scraper 61 no longer contacts the ground after the turning plate 6 swings to a certain angle, the turning plate 6 loses the friction force of the ground, so that the turning plate 6 again closely contacts the shovel plate 2 under the elastic release of the spring 62, the opening of the air outlet channel is reduced, and the above process causes the opening of the air outlet channel to be intermittently increased and reduced, and the corresponding air flow periodically changes.

[0059] The air flow blown out of the air outlet 7 is parallel to the bottom surface of the emission unit 11, so that the air flow forms a stable horizontal plane laminar flow, which can avoid dust sticking to the camera of the emission unit 11, and can accelerate the evaporation of water vapor to avoid water vapor entering the emission unit 11 to corrode electronic elements.

[0060] The above only describes some exemplary embodiments of the present application by way of illustration, without doubt, for ordinary skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present application.

Claims

1. A device for detecting the flatness of a road-bridge joint, comprising a laser detector (1) mounted on the front of a vehicle and a transmitting unit (11) provided on the laser detector (1) and directed towards the road surface, characterized in that, The shovel plate (2) is arranged on the laser detector (1) and located at the front side of the vehicle; The fixed plate (4) is movably arranged on the shovel plate (2); The cleaning roller (3) is arranged on the fixed plate (4) and used for turning over the road debris; The turning plate (6) is rotatably arranged at the back side of the shovel plate (2) and forms an adjustable opening air passage together with the shovel plate (2).

2. The device for detecting the flatness of the joint between a road and a bridge according to claim 1, wherein The transmission wheel (5) is rotatably arranged on the fixed plate (4) and abuts against the road surface.

3. The device for detecting the flatness of the joint between a road and a bridge according to claim 1, wherein A plurality of blades are arranged on the cleaning roller (3) in a circumferential array, and the lowest point of the blade is 1-2 cm higher than the road surface, and the tangent direction of the cleaning roller (3) at the lowest point is consistent with the direction of the vehicle.

4. The device for detecting the flatness of the joint between a road and a bridge according to claim 2, wherein The second gear (44) is fixedly arranged on the cleaning roller (3), and the first gear (43) is rotatably arranged on the fixed plate (4) and is in meshing transmission with the second gear (44); The first gear (43) and the transmission wheel (5) are synchronously movable.

5. The device for detecting the flatness of the joint between a road and a bridge according to claim 1, wherein The retention plate (21) is obliquely arranged on the shovel plate (2) and used for clamping the fixed plate (4).

6. The device for detecting the flatness of the joint between a road and a bridge according to claim 5, wherein The cleaning roller (3) has a working position abutting against the slope of the retention plate (21).

7. The device for detecting the flatness of the joint between a road and a bridge according to claim 1, wherein The spring (62) is arranged between the turning plate (6) and the shovel plate (2).

8. The device for detecting the flatness of the joint between a road and a bridge according to claim 1, wherein The scraper (61) is arranged on the turning plate (6) and used for intermittently scraping the road surface.

9. The device for detecting the flatness of the joint between a road and a bridge according to claim 1, wherein The air outlet (7) is arranged on the bottom surface of the relative emission unit (11) in parallel.

10. The device for detecting the flatness of the joint between a road and a bridge according to claim 1, wherein The mudguard (41) is fixedly arranged on the side surface of the fixed plate (4).

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