Pavement flatness measuring device

Abstract

The invention provides a pavement flatness measuring device, and belongs to the technical field of pavement flatness measurement, the pavement flatness measuring device comprises a top plate, an elastic support assembly, a roller assembly, a first conveying assembly and a second conveying assembly, the top plate is internally provided with a first chamber and a second chamber, the first cavity and the second cavity are filled with marking liquid of different colors, the roller assembly is arranged below the top plate, and the elastic supporting assembly is installed at the bottom of the top plate and used for providing elastic supporting for the roller assembly. And the roller assembly rolls along the road surface and can adaptively move up and down when encountering protrusions and recesses, and one end of the first conveying assembly communicates with the second cavity. Compared with the prior art, when the pavement flatness is measured, different marks can be automatically made according to the convex and concave conditions of the pavement, so that the pavement can be repaired in a targeted manner subsequently, and the convenience during repairing is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of road surface flatness measurement, in particular to a road surface flatness measurement device. Background Art

[0002] Road surface smoothness is one of the main technical indicators for evaluating road quality. It is related to driving safety, comfort, the magnitude of impact force on the road surface and its service life.

[0003] At present, the measurement of road surface flatness is mostly achieved with the help of measuring devices. When the measuring device measures that the road surface is not flat enough, it will mark the uneven position. The staff will then use the marked position to repair the road surface. However, the marked road surface position can only determine the existence of unevenness, but cannot accurately indicate whether the unevenness is a depression or a bulge, which results in the inability to make targeted repairs later. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a road surface flatness measuring device.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: A road surface flatness measuring device comprises a top plate, an elastic support assembly, a roller assembly, a first conveying assembly and a second conveying assembly. The top plate is provided with a first chamber and a second chamber, wherein the first chamber and the second chamber are filled with marking liquids of different colors. The roller assembly is arranged below the top plate, and the elastic support assembly is installed at the bottom of the top plate to provide elastic support for the roller assembly, so that the roller assembly can adaptively move up and down when rolling along the road surface and encountering protrusions and depressions. One end of the first conveying assembly is connected to the second chamber, and the other end extends to below the roller assembly. When the roller assembly encounters a raised road surface and moves upward, the first conveying assembly is used to convey the marking liquid in the second chamber to the raised position. One end of the second conveying assembly is connected to the first chamber, and the other end extends to below the roller assembly. When the roller assembly encounters a recessed road surface and moves downward, the second conveying assembly is used to convey the marking liquid inside the first chamber to the recessed position.

[0006] As a further improvement of the present invention: the elastic support assembly includes a guide rod, an elastic member and a support sleeve. The upper end of the guide rod is fixedly connected to the bottom wall of the top plate, and the lower end extends into the interior of the support sleeve and telescopically cooperates with the support sleeve. One end of the elastic member is connected to the bottom wall of the top plate, and the other end is connected to the support sleeve, so as to provide elastic support for the support sleeve. A collar is fixedly provided at the lower end of the support sleeve. The roller assembly comprises a wheel body and a supporting shaft. The wheel bodies are provided with two groups, and the two groups of wheel bodies are respectively fixedly arranged at two ends of the support shaft, and the diameters of the two groups of wheel bodies are larger than the diameter of the support shaft, and the collar is rotatably sleeved on the outside of the support shaft.

[0007] As a further improvement of the present invention: the elastic member is a spring or a metal spring.

[0008] As a further improvement of the present invention: a first rack is fixedly provided on the side wall of the support sleeve, a bracket plate is fixedly provided on the bottom of the top plate, and a gear is rotatably provided on the side wall of the bracket plate. The first delivery assembly includes a first piston rod, a first piston cylinder, a first delivery pipe and a first rubber hose. One end of the first delivery pipe is connected to the inner cavity of the second chamber, and the other end is fixedly connected to the first piston cylinder. The first rubber hose is fixedly arranged on the outer wall of the collar. One end of the first rubber hose extends to the lower part of the collar, and the other end is connected to the first piston cylinder. One end of the first piston rod extends to the inside of the first piston cylinder and is telescopically matched with the first piston cylinder. A second rack is fixedly arranged on the side wall of the first piston rod. The gear is arranged between the first piston rod and the supporting sleeve and is synchronously meshed with the first rack and the second rack. The first piston cylinder and the first rubber hose are filled with marking liquid of the same color as the second chamber. The first piston cylinder and the first delivery pipe are both equipped with a one-way valve.

[0009] As a further improvement of the present invention: the second delivery assembly includes a second piston rod, a second piston cylinder, a second delivery pipe and a second rubber hose, One end of the second delivery pipe is connected to the inner cavity of the first chamber, and the other end is fixedly connected to the second piston cylinder. The second rubber hose is fixedly arranged on the outer wall of the collar, and one end of the second rubber hose extends to the lower part of the collar, and the other end is connected to the second piston cylinder. One end of the second piston rod extends into the interior of the second piston cylinder and is telescopically matched with the second piston cylinder. The side wall of the second piston rod is fixedly connected to the support sleeve via a connecting plate. The second piston rod and the second rubber hose are both filled with marking liquid of the same color as that of the first chamber. A one-way valve is installed inside the second piston cylinder and the second delivery pipe.

[0010] As a further improvement of the present invention: two groups of adding pipes are arranged on the upper part of the top plate, and the two groups of adding pipes are connected to the first chamber and the second chamber respectively.

[0011] As a further improvement of the present invention: a plurality of legs are fixedly provided on the edge of the bottom wall of the top plate, and casters are rotatably provided on the bottom of each group of the legs.

[0012] Compared with the prior art, the present invention has the following beneficial effects: In the embodiment of the present invention, when it is necessary to detect the flatness of the road surface, the top plate can be moved along the road surface, and the top plate drives the roller assembly to roll along the road surface through the elastic support assembly. When the roller assembly encounters a raised road surface, the roller assembly moves upward, and the first conveying assembly conveys the marking liquid in the second chamber to the raised position, thereby marking the raised position. When the roller assembly encounters a recessed road surface, the roller assembly moves downward, and the second conveying assembly conveys the marking liquid in the first chamber to the recessed position, thereby marking the recessed position. By marking the raised and recessed positions of the road surface with the marking liquid, the staff can intuitively judge the road surface. The positions of the protrusions and depressions on the surface can be determined so as to repair the road surface in a targeted manner. Moreover, since the marking liquids in the first chamber and the second chamber have different colors, the marking liquids transported to the uneven road surface via the first conveying component and the second conveying component can present different colors. The staff can thereby determine whether the uneven road surface is a protruding road surface or a concave road surface, thereby further making targeted repairs to the road surface. Compared with the prior art, when measuring the flatness of the road surface, different marks can be made according to the protrusions and depressions of the road surface, so that targeted repairs can be made later, thereby improving the convenience during repairs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the structure of a road surface flatness measuring device Figure 1 ; Figure 2 A schematic diagram of the structure of a road surface flatness measuring device Figure 2 ; Figure 3 It is a structural schematic diagram of a roller assembly in a road surface flatness measuring device; Figure 4 for Figure 3 A magnified schematic diagram of the middle A area; In the figure: 10-top plate, 101-first chamber, 102-second chamber, 103-leg, 104-castor, 105-adding tube, 106-bracket plate, 107-gear, 20-elastic support assembly, 201-guide rod, 202-elastic member, 203-support sleeve, 204-ring, 205-first rack, 30-roller assembly, 301-wheel body, 302-support shaft, 40-first conveying assembly, 401-first piston rod, 402-first piston cylinder, 403-first conveying pipe, 404-first rubber hose, 405-second rack, 50-second conveying assembly, 501-second piston rod, 502-connecting plate, 503-second piston cylinder, 504-second conveying pipe, 505-second rubber hose. DETAILED DESCRIPTION

[0014] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0015] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0016] See also Figure 1 , Figure 2 as well as Figure 3 The present embodiment provides a road surface flatness measuring device, including a top plate 10, an elastic support assembly 20, a roller assembly 30, a first conveying assembly 40 and a second conveying assembly 50. The top plate 10 is provided with a first chamber 101 and a second chamber 102. The first chamber 101 and the second chamber 102 are filled with marking liquids of different colors. The roller assembly 30 is arranged below the top plate 10. The elastic support assembly 20 is installed at the bottom of the top plate 10 to provide elastic support for the roller assembly 30, so that the roller assembly 30 can roll along the road surface and encounter bumps and depressions. Adaptively move up and down, one end of the first conveying component 40 is connected to the second chamber 102, and the other end extends to the bottom of the roller assembly 30. When the roller assembly 30 encounters a raised road surface and moves upward, the first conveying component 40 is used to convey the marking liquid inside the second chamber 102 to the raised position. One end of the second conveying component 50 is connected to the first chamber 101, and the other end extends to the bottom of the roller assembly 30. When the roller assembly 30 encounters a recessed road surface and moves downward, the second conveying component 50 is used to convey the marking liquid inside the first chamber 101 to the recessed position.

[0017] When it is necessary to detect the flatness of the road surface, the top plate 10 can be moved along the road surface. The top plate 10 drives the roller assembly 30 to roll along the road surface through the elastic support assembly 20. When the roller assembly 30 encounters a raised road surface, the roller assembly 30 moves upward, and the first conveying assembly 40 conveys the marking liquid inside the second chamber 102 to the raised position, thereby marking the raised position. When the roller assembly 30 encounters a recessed road surface, the roller assembly 30 moves downward, and the second conveying assembly 50 conveys the marking liquid inside the first chamber 101 to the recessed position, thereby marking the recessed position. Note that by marking the raised and sunken positions of the road surface with the above-mentioned marking liquid, the staff can intuitively determine the locations of the raised and sunken positions of the road surface, so as to repair the road surface in a targeted manner, and because the marking liquids inside the first chamber 101 and the second chamber 102 have different colors, the marking liquids transported to the uneven road surface via the first conveying component 40 and the second conveying component 50 can present different colors, so that the staff can determine whether the uneven road surface is a raised road surface or a sunken road surface, thereby further making targeted repairs to the road surface.

[0018] See also Figure 1 as well as Figure 3 In one embodiment, the elastic support assembly 20 includes a guide rod 201, an elastic member 202 and a support sleeve 203. The upper end of the guide rod 201 is fixedly connected to the bottom wall of the top plate 10, and the lower end extends to the inside of the support sleeve 203 and telescopically cooperates with the support sleeve 203. One end of the elastic member 202 is connected to the bottom wall of the top plate 10, and the other end is connected to the support sleeve 203, which is used to provide elastic support for the support sleeve 203. A ring 204 is fixedly provided at the lower end of the support sleeve 203. The roller assembly 30 includes a wheel body 301 and a support shaft 302. The wheel body 301 is provided with two groups. The two groups of wheel bodies 301 are respectively fixedly provided at both ends of the support shaft 302. The diameters of the two groups of wheel bodies 301 are larger than the diameter of the support shaft 302. The ring 204 is rotatably sleeved on the outside of the support shaft 302.

[0019] When the top plate 10 is moved along the road surface, the top plate 10 drives the guide rod 201, the elastic member 202, the support sleeve 203, the ring 204, the support shaft 302 and the two sets of wheel bodies 301 to move synchronously. The two sets of wheel bodies 301 act on the road surface and then roll along the road surface. The two sets of wheel bodies 301 drive the support shaft 302 to make the support shaft 302 rotate compared with the ring 204. When the two sets of wheel bodies 301 encounter a raised road surface, the support shaft 302, the ring 204 and the support sleeve 203 can be driven to move upward, and the support sleeve 203 slides upward along the outside of the guide rod 201, and the elastic member 202 is compressed. When the two sets of wheel bodies 301 encounter a recessed road surface, the support shaft 302, the ring 204 and the support sleeve 203 can be driven to move downward, and the support sleeve 203 slides downward along the outside of the guide rod 201, and the elastic member 202 stretches.

[0020] In one embodiment, the elastic member 202 may be a spring or a metal spring, which is not limited here.

[0021] See also Figure 3 as well as Figure 4 In one embodiment, a first rack 205 is fixedly provided on the side wall of the support sleeve 203, a bracket plate 106 is fixedly provided on the bottom of the top plate 10, and a gear 107 is rotatably provided on the side wall of the bracket plate 106. The first conveying assembly 40 includes a first piston rod 401, a first piston cylinder 402, a first conveying pipe 403 and a first rubber hose 404. One end of the first conveying pipe 403 is connected to the inner cavity of the second chamber 102, and the other end is fixedly connected to the first piston cylinder 402. The first rubber hose 404 is fixedly provided on the outer wall of the collar 204, and one end of the first rubber hose 404 extends to the lower part of the collar 204, and the other end is connected to the first A piston cylinder 402 is connected, one end of the first piston rod 401 extends into the first piston cylinder 402 and is telescopically matched with the first piston cylinder 402, a second rack 405 is fixedly arranged on the side wall of the first piston rod 401, the gear 107 is arranged between the first piston rod 401 and the supporting sleeve 203 and is synchronously meshed with the first rack 205 and the second rack 405, the first piston cylinder 402 and the first rubber hose 404 are filled with marking liquid of the same color as that of the second chamber 102, and a one-way valve (not shown in the figure) is installed inside the first piston cylinder 402 and the first delivery pipe 403.

[0022] When the two sets of wheel bodies 301 encounter a raised road surface and drive the support sleeve 203 to move upward, the support sleeve 203 drives the first rack 205 to move upward synchronously, and the first piston rod 401 is driven to move downward through the meshing transmission of the first rack 205, the gear 107 and the second rack 405. When the first piston rod 401 moves downward, it presses the marking liquid inside the first piston cylinder 402, and then presses the marking liquid inside the first rubber hose 404 out and acts on the raised road surface, thereby marking the raised road surface; when the two sets of wheel bodies 301 encounter a raised road surface and drive the support sleeve 203 to move upward synchronously, the support sleeve 203 drives the first rack 205 to move upward synchronously, and the first piston rod 401 is driven to move downward through the meshing transmission of the first rack 205, the gear 107 and the second rack 405. When the first piston rod 401 moves downward, it presses the marking liquid inside the first piston cylinder 402, and then presses the marking liquid inside the first rubber hose 404 out and acts on the raised road surface, thereby marking the raised road surface; After the body 301 rolls off the raised road surface, the elastic member 202 pushes the supporting sleeve 203, thereby driving the two sets of wheel bodies 301 to move downward, and the supporting sleeve 203 drives the first rack 205 to move downward, and the first piston rod 401 is driven to move upward through the reverse meshing transmission action of the first rack 205, the gear 107 and the second rack 405. When the first piston rod 401 moves upward, the marking liquid inside the second chamber 102 is drawn into the first piston cylinder 402 through the first delivery pipe 403, so as to replenish the marking liquid.

[0023] See also Figure 3 In one embodiment, the second delivery assembly 50 includes a second piston rod 501, a second piston cylinder 503, a second delivery pipe 504 and a second rubber hose 505, one end of the second delivery pipe 504 is communicated with the inner cavity of the first chamber 101, and the other end is fixedly connected to the second piston cylinder 503, the second rubber hose 505 is fixedly arranged on the outer wall of the collar 204, one end of the second rubber hose 505 extends to the lower part of the collar 204, and the other end is communicated with the second piston cylinder 503, one end of the second piston rod 501 extends to the inside of the second piston cylinder 503 and is telescopically matched with the second piston cylinder 503, the side wall of the second piston rod 501 is fixedly connected to the support sleeve 203 through a connecting plate 502, the second piston rod 501 and the second rubber hose 505 are both filled with a marking liquid of the same color as that of the inside of the first chamber 101, and a one-way valve (not shown in the figure) is installed inside the second piston cylinder 503 and the second delivery pipe 504.

[0024] When the two groups of wheel bodies 301 encounter a concave road surface and drive the support sleeve 203 to move downward, the support sleeve 203 drives the second piston rod 501 to move downward through the connecting plate 502 to pressurize the marking liquid inside the second piston cylinder 503, thereby pressing the marking liquid inside the second rubber hose 505 out and acting on the concave road surface, thereby marking the concave road surface; when the two groups of wheel bodies 301 roll away from the concave road surface, the two groups of wheel bodies 301 move upward, and the support sleeve 203 drives the second piston rod 501 to move upward through the connecting plate 502, so as to draw the marking liquid inside the first chamber 101 into the second piston cylinder 503 through the second delivery pipe 504, thereby replenishing the marking liquid.

[0025] See also Figure 1 In one embodiment, two groups of adding tubes 105 are provided on the upper portion of the top plate 10, and the two groups of adding tubes 105 are connected to the first chamber 101 and the second chamber 102 respectively. Through the provision of the two groups of adding tubes 105, corresponding marking liquids can be added to the first chamber 101 and the second chamber 102 respectively.

[0026] See also Figure 1 In one embodiment, a plurality of legs 103 are fixedly provided on the edge of the bottom wall of the top plate 10 , and casters 104 are rotatably provided at the bottom of each group of the legs 103 .

[0027] By disposing the legs 103 and the casters 104 , the top plate 10 can move smoothly and flexibly along the road surface, thereby driving the roller assembly 30 to roll along the road surface.

[0028] In one embodiment, the color of the marking liquid inside the first chamber 101 can be red or blue, etc., and the color of the marking liquid inside the second chamber 102 can be yellow or green, etc., and there is no limitation here; after the roller assembly 30 rolls along a certain position on the road surface, when the staff observes the existence of a red or blue mark at that position, it can be concluded that there is a depression at that position, conversely, when the staff observes the existence of a yellow or green mark at that position, it can be concluded that there is a bulge at that position.

[0029] In the embodiment of the present invention, when it is necessary to detect the flatness of the road surface, the top plate 10 can be moved along the road surface, and the top plate 10 drives the roller assembly 30 to roll along the road surface through the elastic support assembly 20. When the roller assembly 30 encounters a raised road surface, the roller assembly 30 moves upward, and the first conveying assembly 40 conveys the marking liquid inside the second chamber 102 to the raised position, thereby marking the raised position. When the roller assembly 30 encounters a recessed road surface, the roller assembly 30 moves downward, and the second conveying assembly 50 conveys the marking liquid inside the first chamber 101 to the recessed position, thereby marking the recessed position. By marking the raised and recessed positions of the road surface with the above-mentioned marking liquid, the staff can The positions of the bumps and depressions on the road surface can be determined intuitively enough to facilitate targeted repair of the road surface, and because the marking liquids inside the first chamber 101 and the second chamber 102 have different colors, the marking liquids transported to the uneven road surface via the first conveying assembly 40 and the second conveying assembly 50 can present different colors, and the staff can thereby determine whether the uneven road surface is a raised road surface or a sunken road surface, thereby further making targeted repairs to the road surface. Compared with the prior art, when measuring the flatness of the road surface, different marks can be made according to the bumps and depressions on the road surface, so that targeted repairs can be made later, thereby improving the convenience during repairs.

[0030] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A road surface flatness measuring device, characterized in that: It includes a top plate, an elastic support assembly, a roller assembly, a first conveying assembly and a second conveying assembly, The top plate is provided with a first chamber and a second chamber, wherein the first chamber and the second chamber are filled with marking liquids of different colors. The roller assembly is arranged below the top plate, and the elastic support assembly is installed at the bottom of the top plate to provide elastic support for the roller assembly, so that the roller assembly can adaptively move up and down when rolling along the road surface and encountering protrusions and depressions. One end of the first conveying assembly is connected to the second chamber, and the other end extends to below the roller assembly. When the roller assembly encounters a raised road surface and moves upward, the first conveying assembly is used to convey the marking liquid in the second chamber to the raised position. One end of the second conveying assembly is connected to the first chamber, and the other end extends to below the roller assembly. When the roller assembly encounters a recessed road surface and moves downward, the second conveying assembly is used to convey the marking liquid inside the first chamber to the recessed position.

2. A road surface flatness measuring device according to claim 1, characterized in that: The elastic support assembly includes a guide rod, an elastic member and a support sleeve. The upper end of the guide rod is fixedly connected to the bottom wall of the top plate, and the lower end extends into the interior of the support sleeve and telescopically cooperates with the support sleeve. One end of the elastic member is connected to the bottom wall of the top plate, and the other end is connected to the support sleeve, so as to provide elastic support for the support sleeve. A collar is fixedly provided at the lower end of the support sleeve. The roller assembly comprises a wheel body and a supporting shaft. The wheel bodies are provided with two groups, and the two groups of wheel bodies are respectively fixedly arranged at two ends of the support shaft, and the diameters of the two groups of wheel bodies are larger than the diameter of the support shaft, and the collar is rotatably sleeved on the outside of the support shaft.

3. A road surface flatness measuring device according to claim 2, characterized in that: The elastic member is a spring or a metal spring.

4. A road surface flatness measuring device according to claim 2, characterized in that: The side wall of the support sleeve is fixedly provided with a first rack, the bottom of the top plate is fixedly provided with a bracket plate, and the side wall of the bracket plate is rotatably provided with a gear. The first delivery assembly includes a first piston rod, a first piston cylinder, a first delivery pipe and a first rubber hose. One end of the first delivery pipe is connected to the inner cavity of the second chamber, and the other end is fixedly connected to the first piston cylinder. The first rubber hose is fixedly arranged on the outer wall of the collar. One end of the first rubber hose extends to the lower part of the collar, and the other end is connected to the first piston cylinder. One end of the first piston rod extends to the inside of the first piston cylinder and is telescopically matched with the first piston cylinder. A second rack is fixedly arranged on the side wall of the first piston rod. The gear is arranged between the first piston rod and the supporting sleeve and is synchronously meshed with the first rack and the second rack. The first piston cylinder and the first rubber hose are filled with marking liquid of the same color as the second chamber. The first piston cylinder and the first delivery pipe are both equipped with a one-way valve.

5. A road surface flatness measuring device according to claim 2, characterized in that: The second delivery assembly includes a second piston rod, a second piston cylinder, a second delivery pipe and a second rubber hose. One end of the second delivery pipe is connected to the inner cavity of the first chamber, and the other end is fixedly connected to the second piston cylinder. The second rubber hose is fixedly arranged on the outer wall of the collar, and one end of the second rubber hose extends to the lower part of the collar, and the other end is connected to the second piston cylinder. One end of the second piston rod extends into the interior of the second piston cylinder and is telescopically matched with the second piston cylinder. The side wall of the second piston rod is fixedly connected to the support sleeve via a connecting plate. The second piston rod and the second rubber hose are both filled with marking liquid of the same color as that of the first chamber. A one-way valve is installed inside the second piston cylinder and the second delivery pipe.

6. A road surface flatness measuring device according to claim 1, characterized in that: Two groups of adding pipes are arranged on the upper part of the top plate, and the two groups of adding pipes are communicated with the first chamber and the second chamber respectively.

7. A road surface flatness measuring device according to claim 1, characterized in that: A plurality of legs are fixedly arranged on the edge of the bottom wall of the top plate, and casters are rotatably arranged on the bottom of each group of legs.

Images