A test device for detecting road surface flatness

Abstract

The present invention provides a test device for detecting the flatness of a road surface, comprising a first straight plate and a second straight plate, wherein the first straight plate and the second straight plate have the same specifications, and three-sided grooves are provided on opposite surfaces of the first straight plate and the second straight plate, and a connecting block is provided inside the three-sided groove, and the first straight plate and the second straight plate are connected through the connecting block, and a distance component is provided on the top of the first straight plate and the second straight plate, and the distance between the two straight plates and the roadside is conveniently controlled by the distance component, thereby improving the detection accuracy. Compared with the prior art, the two groups of straight plates can move relative to each other, and after the detection of one group of straight plates is completed, the two groups of straight plates move along the other fixed group of straight plates, and then the inspection is carried out under the premise of an alignment reference object, thereby improving the accuracy of the inspection, and the lifting component can facilitate the movement of the straight plates in the horizontal direction, and the ground is cleaned during the movement, thereby improving the efficiency of the inspection and saving manpower.

Description

Technical Field

[0001] The invention relates to the technical field of road surface flatness detection, in particular to a test device for road surface flatness detection. Background Art

[0002] Pavement flatness refers to the deviation value of the longitudinal bumps on the road surface. Pavement flatness is an important indicator in pavement evaluation and pavement construction acceptance. It mainly reflects the flatness of the pavement longitudinal section profile curve. When the pavement longitudinal section profile curve is relatively smooth, it means that the pavement is relatively flat, or the flatness is relatively good. Otherwise, it means that the flatness is relatively poor. A good pavement requires good pavement flatness.

[0003] An indicator that measures the slight ups and downs of the road surface along the driving direction. There are three methods for measuring road surface flatness: fixed-length ruler method, cross-section depiction method, and bump accumulation method. The existing technology mostly uses the fixed-length ruler method to detect road flatness, that is, a flat ruler of a specified length is placed on the road surface, and the gap between the ruler and the road surface is directly measured as a flatness indicator. The measurement method is to detect two places every 200 meters, and five feet are detected at each place. During the detection, a three-meter detection ruler is usually used, which is placed 0.8 to 1 meter away from the roadside. Then, the maximum gap between the bottom of the ruler and the ground is observed, and a feeler gauge is inserted, and the gap difference is measured with the vernier caliper on the feeler gauge. Five consecutive measurements are required at one test point;

[0004] Due to the limited length of the ruler, it is necessary to align and place it along the reserved test points after each measurement for continuous measurement. This method requires manual replacement of the ruler position, resulting in low detection efficiency. In addition, the level of the ruler and the distance from the roadside will change after each replacement, which affects the accuracy of the detection. Before placing the ruler on the road, the ground needs to be cleaned to prevent dust and garbage from affecting the levelness of the ruler. Cleaning the ground also takes a lot of time and manpower. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a test device for detecting the flatness of a road surface to solve the problems raised in the above-mentioned background technology. The present invention has a novel structure. The two groups of straight plates can move relative to each other. After the detection of one group of straight plates is completed, they move along the other fixed group of straight plates, and then perform the inspection under the premise of alignment reference objects, thereby improving the accuracy of the inspection. The lifting assembly can facilitate the horizontal movement of the straight plates, and the ground can be cleaned during the movement, thereby improving the efficiency of the inspection and saving manpower.

[0006] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: a test device for detecting the flatness of a road surface, comprising a first straight plate and a second straight plate, the first straight plate and the second straight plate having the same specifications, and three-sided grooves are provided on opposite surfaces of the first straight plate and the second straight plate, a connecting block is provided inside the three-sided groove, and the first straight plate and the second straight plate are connected by the connecting block, a distance component is provided on the top of the first straight plate and the second straight plate, and a lifting component is provided inside the first straight plate and the second straight plate, and a feeler gauge is provided on the outer side of the first straight plate and the second straight plate.

[0007] Furthermore, the distance-fixing assembly comprises a long plate, the long plates are rotatably mounted on the tops of the first straight plate and the second straight plate, and folding plates are rotatably mounted on the outer ends of the long plates, and a counterweight plate is fixed on the bottom of the folding plates.

[0008] Furthermore, the connecting block is fixed with a second spring telescopic rod at the top and bottom of the three-sided groove corresponding to the first straight plate and the second straight plate, and a pulley is rotatably installed on the top of the second spring telescopic rod, and sliding grooves are opened at the positions of the pulleys at the top and bottom of the three-sided grooves of the first straight plate and the second straight plate, and the pulley is slidably engaged in the sliding grooves of the three-sided grooves.

[0009] Furthermore, the lifting assembly includes a movable plate, the first straight plate and the second straight plate are provided with cavities inside, and the movable plate is slidably connected inside the cavity, a screw is rotatably installed on the top of the movable plate, and the top of the screw engages and passes through the straight plate, a knob is fixed on the top of the screw, and movable wheels are equidistantly installed on the bottom of the movable plate.

[0010] Furthermore, connecting plates are fixed equidistantly on both sides of the moving wheel of the moving plate, and a sweeping plate is rotatably mounted on the bottom of the connecting plate.

[0011] Furthermore, first spring telescopic rods are fixed on the top inner walls of both ends of the cavities of the first straight plate and the second straight plate, and two rotating plates are rotatably installed on the bottom of the first spring telescopic rods, and the rotating plates are rotatably connected to the sides of the sweeping plate.

[0012] Furthermore, extrusion plates are fixed on both sides of the first spring telescopic rod, and fan blade plates are fixed on both sides of the axis of the moving wheel, and the single plate on the fan blade plate is alternately extruded and contacted with the extrusion plate.

[0013] Furthermore, a level is installed on the top of each of the first straight plate and the second straight plate.

[0014] Beneficial effects of the present invention: A test device for detecting road surface flatness of the present invention comprises a first straight plate; a second straight plate; a feeler gauge; a distance component; a long plate; a folding plate; a counterweight plate; a level; a lifting component; a knob; a screw; a moving plate; a moving wheel; a sweeping plate; a connecting plate; a first spring telescopic rod; a rotating plate; a fan blade plate; an extrusion plate; a three-sided groove; a connecting block; a pulley; and a second spring telescopic rod.

[0015] 1. This road surface flatness testing device facilitates the movement of the straight board under the action of the moving wheels, and there is no need to lift the straight board. Under the action of the sweeping plates on both sides of the moving wheels, the dust and garbage on the ground are swept away to avoid affecting the contact accuracy between the straight board and the ground.

[0016] 2. In this test device for detecting the flatness of a road surface, the first straight plate and the second straight plate are connected by the connecting block, and the pulleys on both sides of the connecting block are inserted into the three-sided groove to form a snap connection, so that the first straight plate and the second straight plate can be staggered and moved.

[0017] 3. The test device for detecting the flatness of the road surface facilitates the control of the distance between the two straight plates and the roadside through the action of the distance-fixing component, thereby improving the detection accuracy.

[0018] 4. Compared with the prior art, the test device for road surface flatness detection has two sets of straight plates that can move relative to each other. After one set of straight plates is detected, it moves along the other fixed set of straight plates, and then performs the inspection under the premise of alignment reference objects, thereby improving the accuracy of the inspection. The lifting assembly can facilitate the horizontal movement of the straight plates, and the ground can be cleaned during the movement, thereby improving the efficiency of the inspection and saving manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of a test device for detecting road surface flatness according to the present invention;

[0020] Figure 2 A schematic diagram of the splitting of the first straight plate and the second straight plate of a test device for detecting road surface flatness according to the present invention;

[0021] Figure 3 A schematic diagram of the internal structure of a straight plate of a test device for detecting road surface flatness according to the present invention;

[0022] Figure 4 A schematic diagram of the structure of a lifting assembly of a test device for detecting road surface flatness according to the present invention;

[0023] Figure 5 A schematic diagram of a connecting block structure of a test device for detecting road surface flatness according to the present invention;

[0024] In the figure: 1. first straight plate; 2. second straight plate; 3. feeler gauge; 4. distance assembly; 41. long plate; 42. folding plate; 43. counterweight plate; 5. level; 6. lifting assembly; 61. knob; 62. screw; 63. moving plate; 64. moving wheel; 65. sweeping plate; 66. connecting plate; 67. first spring telescopic rod; 68. rotating plate; 69. fan blade plate; 610. extrusion plate; 7. three-sided groove; 8. connecting block; 81. pulley; 82. second spring telescopic rod. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0026] See also Figure 1 and Figure 5 The present invention provides a technical solution: a test device for detecting the flatness of a road surface, comprising a first straight plate 1 and a second straight plate 2, wherein the first straight plate 1 and the second straight plate 2 are of the same specification, and three-sided grooves 7 are provided on opposite surfaces of the first straight plate 1 and the second straight plate 2, and a connecting block 8 is provided inside the three-sided groove 7, and the first straight plate 1 and the second straight plate 2 are connected by the connecting block 8, a distance component 4 is provided on the top of the first straight plate 1 and the second straight plate 2, and a lifting component 6 is provided inside the first straight plate 1 and the second straight plate 2, and a feeler gauge 3 is provided on the outer side of the first straight plate 1 and the second straight plate 2. When using the device, the first straight plate 1 and the second straight plate 2 are placed in the same straight line, and the largest contact gap between the straight plate and the ground is found, and the distance is measured by the feeler gauge 3, and then the second straight plate 2 is pressed, and the first straight plate 1 is moved to the other side of the second straight plate 2 by the lifting component 6, and alternating detection is performed to speed up the progress of the detection.

[0027] In this embodiment, the distance component 4 includes a long plate 41, the long plate 41 is rotatably installed on the top of the first straight plate 1 and the second straight plate 2, and a folding plate 42 is rotatably installed on the outer end of the long plate 41, and a counterweight plate 43 is fixed to the bottom of the folding plate 42. The long plate 41 is rotated to be perpendicular to the straight plate, the folding plate 42 is opened, and the counterweight plate 43 is placed on the outside of the road. The length of the long plate 41 is within the detection standard length.

[0028] In this embodiment, the connecting block 8 is fixed with a second spring telescopic rod 82 at the top and bottom of the three-sided groove 7 corresponding to the first straight plate 1 and the second straight plate 2, and a pulley 81 is rotatably installed on the top of the second spring telescopic rod 82. The top and bottom of the three-sided groove 7 of the first straight plate 1 and the second straight plate 2 are provided with sliding grooves at the positions corresponding to the pulley 81, and the pulley 81 is slidably engaged in the sliding grooves of the three-sided groove 7. The first straight plate 1 and the second straight plate 2 are connected through the connecting block 8, and the pulleys 81 on both sides of the connecting block 8 are inserted into the three-sided groove 7 to form a card connection, so that the first straight plate 1 and the second straight plate 2 can be staggered and moved. Under the action of the second spring telescopic rod 82, when one side of the straight plate moves, the lifting assembly 6 raises it, and the second spring telescopic rod 82 shortens to maintain the connection between the connecting block 8 and the first straight plate 1 and the second straight plate 2.

[0029] In this embodiment, the lifting assembly 6 includes a moving plate 63, a cavity is provided inside the first straight plate 1 and the second straight plate 2, and the moving plate 63 is slidably connected inside the cavity, a screw 62 is rotatably installed on the top of the moving plate 63, and the top of the screw 62 engages and passes through the straight plate, a knob 61 is fixed on the top of the screw 62, and moving wheels 64 are equidistantly installed on the bottom of the moving plate 63, connecting plates 66 are equidistantly fixed on both sides of the moving wheel 64 of the moving plate 63, and a sweeping plate 65 is rotatably installed on the bottom of the connecting plate 66, first spring telescopic rods 67 are fixed on the top inner walls of both ends of the cavity of the first straight plate 1 and the second straight plate 2, and two rotating plates 68 are rotatably installed on the bottom of the first spring telescopic rod 67, and the rotating plate 68 is rotatably connected to the side of the sweeping plate 65. Extrusion plates 610 are fixed on both sides of the retracted rod 67, and fan blade plates 69 are fixed on both sides of the axis of the moving wheel 64, and the single plate on the fan blade plate 69 is alternately squeezed and contacted with the extrusion plate 610. When the first straight plate 1 or the second straight plate 2 needs to be moved, the knob 61 is turned, and the screw 62 engages with the top of the straight plate to drive the moving plate 63 to descend, and the moving wheel 64 passes through the cavity and contacts the ground. At this time, the sweeping plates 65 on both sides also move out of the cavity. When the moving wheel 64 rotates along the ground, the fan blade plate 69 rotates and alternately squeezes the extrusion plate 610, driving the first spring telescopic rod 67 to extend and shorten reciprocating motion. Through the transmission of the two rotating plates 68, the two sweeping plates 65 rotate back and forth to both sides to sweep away the dust and garbage on the ground. When reaching the detection position, the moving wheel 64 is retracted and the bottom of the straight plate contacts the ground.

[0030] In this embodiment, a level 5 is installed on the top of each of the first straight board 1 and the second straight board 2. After the first straight board 1 and the second straight board 2 are placed on the ground, they are calibrated by the level 5.

[0031] When using the device, place the first straight plate 1 and the second straight plate 2 in the same straight line, rotate the long plate 41 to be perpendicular to the straight plate, open the folding plate 42, place the counterweight plate 43 on the outside of the road to find the largest contact gap between the straight plate and the ground, measure the distance with the feeler gauge 3, then press the second straight plate 2, turn the knob 61, the screw 62 engages with the top of the straight plate to drive the moving plate 63 to descend, and the moving wheel 64 passes through the cavity to contact the ground. At this time, the sweeping plates 65 on both sides also move out of the cavity. When the moving wheel 64 rotates along the ground, the fan blade plate 69 rotates and alternately squeezes the squeezing plate 610, driving the first spring telescopic rod 67 to reciprocate and shorten. Through the transmission of the two rotating plates 68, the two sweeping plates 65 rotate back and forth to both sides to sweep away the dust and garbage on the ground. When reaching the detection position, the moving wheel 64 is retracted, and the bottom of the straight plate contacts the ground. Alternating detection is performed to speed up the detection progress.

[0032] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A test device for detecting road surface flatness, comprising a first straight plate (1) and a second straight plate (2), characterized in that: The first straight plate (1) and the second straight plate (2) have the same specifications, and three-sided grooves (7) are provided on opposite surfaces of the first straight plate (1) and the second straight plate (2), a connecting block (8) is provided inside the three-sided groove (7), and the first straight plate (1) and the second straight plate (2) are connected via the connecting block (8), a distance component (4) is provided on the top of the first straight plate (1) and the second straight plate (2), and a lifting component (6) is provided inside the first straight plate (1) and the second straight plate (2), and a feeler gauge (3) is provided on the outside of the first straight plate (1) and the second straight plate (2); The lifting assembly (6) comprises a movable plate (63), wherein the first straight plate (1) and the second straight plate (2) are provided with cavities inside, and the movable plate (63) is slidably connected inside the cavities, a screw rod (62) is rotatably mounted on the top of the movable plate (63), and the top of the screw rod (62) engages and passes through the straight plate, a knob (61) is fixed on the top of the screw rod (62), and movable wheels (64) are equidistantly mounted on the bottom of the movable plate (63); The movable plate (63) is equidistantly fixed with connecting plates (66) on both sides of the movable wheel (64), and a sweeping plate (65) is rotatably mounted on the bottom of the connecting plate (66).

2. A test device for detecting road surface flatness according to claim 1, characterized in that: The distance-fixing assembly (4) comprises a long plate (41), the long plate (41) being rotatably mounted on the top of the first straight plate (1) and the second straight plate (2), and a folding plate (42) being rotatably mounted on the outer end of the long plate (41), and a counterweight plate (43) being fixed on the bottom of the folding plate (42).

3. A test device for detecting road surface flatness according to claim 1, characterized in that: The connecting block (8) is fixed with a second spring telescopic rod (82) at the top and bottom of the three-sided groove (7) corresponding to the first straight plate (1) and the second straight plate (2), and a pulley (81) is rotatably mounted on the top of the second spring telescopic rod (82), and sliding grooves are provided at the top and bottom of the three-sided groove (7) of the first straight plate (1) and the second straight plate (2) at positions corresponding to the pulley (81), and the pulley (81) is slidably engaged in the sliding grooves of the three-sided groove (7).

4. A test device for detecting road surface flatness according to claim 1, characterized in that: First spring telescopic rods (67) are fixed on the top inner walls of both ends of the cavities of the first straight plate (1) and the second straight plate (2), and two rotating plates (68) are rotatably mounted on the bottom of the first spring telescopic rods (67), and the rotating plates (68) are rotatably connected to the side edges of the sweeping plate (65).

5. A test device for detecting road surface flatness according to claim 4, characterized in that: Extrusion plates (610) are fixed on both sides of the first spring telescopic rod (67), and fan blade plates (69) are fixed on both sides of the axis of the moving wheel (64), and the single plate on the fan blade plate (69) is alternately extruded and contacted with the extrusion plate (610).

6. A test device for detecting road surface flatness according to claim 1, characterized in that: Leveling instruments (5) are installed on the tops of the first straight plate (1) and the second straight plate (2).

Images