Pavement flatness measuring device

Abstract

The invention discloses a road surface flatness measuring device which comprises a bottom plate, wheel shafts are rotatably installed on the two sides of the bottom of the bottom plate, walking wheels are installed on the two sides of the wheel shafts, a sweeping mechanism is installed at one end of the bottom plate, a detection mechanism is installed on the bottom plate, and an L-shaped plate is arranged above the sweeping mechanism. The L-shaped plate is installed on the bottom plate through the connecting block, one end of the sweeping mechanism is connected with one end of the L-shaped plate, the spraying mechanism is installed on one side of the sweeping mechanism and on the bottom plate, the spraying mechanism is connected with the cleaning mechanism, the water tank is installed at the end, away from the sweeping mechanism, of the bottom plate, the water tank is connected with the spraying mechanism, and a water inlet is formed in the water tank. Ground obstacles can be swept to the two sides of the device through the sweeping mechanism, sweeping is not blocked by objects, the accuracy of follow-up ground measurement is improved, water is sprayed through the spraying mechanism while sweeping is conducted, and therefore dust generated when the sweeping mechanism works is restrained, and environment protection is facilitated.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of road surface detection, and particularly relates to a road surface flatness measuring device. BACKGROUND

[0002] Road surface flatness refers to the deviation value of the longitudinal concave-convex amount of the road surface, and is an important index in road surface evaluation and road surface construction acceptance. The road surface flatness is related to the safety and comfort of driving, the size of the impact force on the road surface and the service life, and influences the driving speed and safety. Therefore, in order to reduce the vibration impact force, improve the driving speed and increase the driving safety, the road surface should maintain a certain flatness.

[0003] After searching, a patent with the application number 2024101253716 discloses a road surface flatness detection device with obstacle removal function, which comprises a vehicle body, an obstacle removal mechanism arranged on the vehicle body, and a detection mechanism arranged on the vehicle body. The obstacle removal mechanism comprises a blocking guide plate and a cleaning wheel. A plurality of blocking guide plates are fixedly installed on the vehicle body, and the blocking guide plates are symmetrically arranged on one side of the vehicle body. The blocking guide plates separate large obstacles and guide them to the side of the vehicle body. A plurality of cleaning wheels are rotatably connected to the vehicle body, and the cleaning wheels are symmetrically arranged on one side of the vehicle body. The cleaning wheels are arranged between the blocking guide plates, and the cleaning wheels clean small obstacles to the side of the vehicle body. When the detection device moves on the road, it is affected by the inclination of the road, and the detection device will incline with the inclination of the road. At this time, the water surface in the water tank needs to maintain a horizontal plane, so that the water in the water tank inclines relative to the water tank. The overall detection wheel always maintains parallelism with the water surface in the water tank, and the detection wheel detects the flatness of the road surface. The data generated by the detection is collected by the data collector, so as to ensure that the influence of the inclination of the road on the device itself will not affect the detection of the road flatness, and the detection quality of the detection device is improved. However, the following defects still exist: the obstacle removal mechanism will sweep small obstacles by rotating the cleaning wheel when working, so as to sweep the small obstacles to both sides of the detection device. However, since the blocking guide plate is arranged on the side of the cleaning wheel, the small obstacles swept by the cleaning wheel will collide with the blocking guide plate and rebound, thereby reducing the cleaning effect of the cleaning wheel and affecting the subsequent measurement results. In addition, since the cleaning wheel is in contact with the ground when working, a large amount of dust will be generated, causing environmental pollution. SUMMARY

[0004] The road flatness measuring device has the advantages that the ground obstacles can be swept to the two sides of the device by the sweeping mechanism, the sweeping is not blocked by objects, the accuracy of subsequent ground measurement is improved, dust generated during the operation of the sweeping mechanism is inhibited by spraying water by the spraying mechanism during the sweeping, and the environment is protected.

[0005] In order to achieve the above object, the technical scheme adopted by the present application is: The road flatness measuring device has the advantages that the ground obstacles can be swept to the two sides of the device by the sweeping mechanism, the sweeping is not blocked by objects, the accuracy of subsequent ground measurement is improved, dust generated during the operation of the sweeping mechanism is inhibited by spraying water by the spraying mechanism during the sweeping, and the environment is protected.

[0006] The sweeping mechanism comprises a box body, a driving motor and a sweeping roller, the box body is installed below the end of the bottom plate, a first rotating shaft is rotatably installed in the box body, the driving motor is installed on the side wall of the box body and connected with the end of the first rotating shaft, a first bevel gear set and a second bevel gear set are respectively installed at the two ends of the first rotating shaft in the box body, the driving bevel gears in the first bevel gear set and the second bevel gear set are symmetrically installed at the two ends of the first rotating shaft in the box body, the number of the sweeping rollers is two and the sweeping rollers are respectively installed on the driven bevel gears in the first bevel gear set and the second bevel gear set, the other end of the sweeping roller is rotatably installed on the inner side wall of the L-shaped plate, a plurality of bristles are uniformly installed on the circumferential direction and the axial direction of the sweeping roller, and the bristles on the two sweeping rollers are staggered.

[0007] The spraying mechanism comprises vertical plates, a cam, a piston cylinder, a water inlet pipe and a water outlet pipe, the number of the vertical plates is two and the two vertical plates are symmetrically installed on the two sides of the bottom plate, a second rotating shaft is rotatably installed between the two vertical plates, the cam is installed on the second rotating shaft, the piston cylinder is located below the cam and is installed on the bottom plate, a piston is slidably installed in the piston cylinder, a piston rod is installed on the top of the piston, the top end of the piston rod extends to the outside of the piston cylinder and is provided with a movable plate, a first spring is installed between the movable plate and the top of the piston cylinder and around the piston rod, the movable plate always abuts against the cam under the action of the first spring, a plurality of spray heads are uniformly installed on the top wall of the L-shaped plate in the horizontal and vertical directions, the plurality of spray heads are communicated through pipelines, the pipelines are located in the L-shaped plate, the bottom of the piston cylinder is connected with the bottom of the water tank through the water inlet pipe, the piston cylinder and the pipelines in the L-shaped plate are connected through the water outlet pipe, a one-way valve is installed on each of the water inlet pipe and the water outlet pipe, the one-way valve on the water inlet pipe can only allow water in the water tank to flow to the piston cylinder, and the one-way valve on the water outlet pipe can only allow water in the piston cylinder to flow to the L-shaped plate, the first rotating shaft extends to the outside of the box and is provided with a first belt pulley at the end away from the driving motor, the second rotating shaft extends to the outside of the vertical plate at the end close to the first belt pulley and is provided with a second belt pulley, and the first belt pulley and the second belt pulley are connected through a first belt.

[0008] The detection mechanism comprises a horizontal plate, a first threaded rod, movable rods and a detection ball, the first threaded rod is threadedly installed in the middle of the bottom plate, the horizontal plate is located below the bottom of the first threaded rod, guide rods are installed on the two sides of the horizontal plate, the horizontal plate is slidably installed on the bottom plate through the guide rods, a bearing seat is installed on the horizontal plate in the middle, the bottom end of the first threaded rod is installed on the bearing seat, a plurality of movable rods are uniformly installed between the first threaded rod and the guide rods and on the horizontal plate, the movable rods penetrate through the horizontal plate and the bottom plate and are slidably connected with the horizontal plate and the bottom plate, U-shaped frames are installed at the bottom of the movable rods, the detection ball is rotatably installed in the U-shaped frames, and second springs are sleeved around the movable rods between the U-shaped frames and the horizontal plate.

[0009] Preferably, a marking mechanism is installed between the water tank and the detection mechanism, the marking mechanism comprising a first carrier, a feeding roller, a support table, a second carrier and a collecting roller, the first carrier is two in number and symmetrically installed on both sides of the bottom plate, the feeding roller is rotatably installed on the first carrier, and foam cotton is wound on the feeding roller, the support table is located above the feeding roller and is installed on the bottom plate, the second carrier is two in number and symmetrically installed on both sides of the bottom plate, the second carrier is located on one side of the support table and has a height greater than that of the first carrier, and the collecting roller is rotatably installed on the second carrier, one end of the collecting roller extends to the outside of the second carrier and is provided with a third pulley, a fourth pulley is installed on the wheel shaft close to the water tank, the fourth pulley is connected with the third pulley through a second belt, the foam cotton on the feeding roller passes over the upper surface of the support table and is wound on the collecting roller, and the top of the movable rod is in an inverted U shape, and a circular cutter is rotatably installed on the end of the movable rod away from the U-shaped frame.

[0010] Preferably, a support plate is installed on one side of the water tank close to the third pulley, a second threaded rod is transversely and threadedly installed on the support plate, a sliding block is installed at the end of the second threaded rod, a sliding groove matched with the sliding block is formed in the side wall of the water tank, the sliding block is slidably installed in the sliding groove, and a tension pulley is rotatably installed on the side of the sliding block away from the water tank.

[0011] Preferably, the support table is fixed to the bottom plate through bolts on both sides of the bottom plate, and a supporting roller is rotatably installed on one side of the support table.

[0012] Preferably, an observation window is installed on one side of the water tank, and a handrail is installed on the side of the water tank away from the cleaning mechanism.

[0013] Preferably, the number of cams is two, the two cams are upside down and symmetrically installed on the second rotating shaft, and the number of piston cylinders, water inlet pipes and water outlet pipes corresponds to the number of cams.

[0014] The present application has the following advantages: 1) The cleaning mechanism can clean the ground obstacles to both sides of the device, and the cleaning is not blocked by objects, thereby improving the accuracy of subsequent ground measurement. At the same time of cleaning, the spraying mechanism sprays water, thereby suppressing the dust generated during the operation of the cleaning mechanism, which is conducive to environmental protection.

[0015] 2) The number of cams is two, the two cams are upside down and symmetrically installed on the second rotating shaft, and the number of piston cylinders, water inlet pipes and water outlet pipes corresponds to the number of cams. Since the piston moves upward in the piston cylinder, the spray head cannot spray water at this time, which will also cause dust. By providing two cams, when one piston moves upward, the other piston moves downward, so that the spray head sprays water continuously, thereby improving the effect of the spraying mechanism.

[0016] 3) The marking mechanism is installed between the water tank and the detection mechanism. When the detection ball contacts the road surface, the circular cutter on the movable rod contacts the foam cotton. When the device moves, the fourth pulley on the wheel shaft drives the material collecting roller to rotate through the second belt. When the material collecting roller rotates, it drives the foam cotton to move. When the road surface is flat, the circular cutter leaves a slight mark on the surface of the foam cotton. When moving to the low-lying road surface, the movable rod drives the circular cutter to move downward, and the circular cutter cuts the surface of the foam cotton at different depths. When moving to the raised road surface, the movable rod drives the circular cutter to move upward, and the circular cutter does not contact the surface of the foam cotton, realizing the recording of the flatness of the road surface through the foam cotton.

[0017] 4) The water tank is installed with a support plate near the third pulley. The second threaded rod is transversely screwed on the support plate. The end of the second threaded rod is installed with a sliding block. The water tank side wall is provided with a sliding groove matched with the sliding block. The sliding block is slidingly installed in the sliding groove. The side of the sliding block away from the water tank is rotatably installed with a tension pulley. The tightness of the second belt can be realized through the tension pulley. When the detection mechanism does not work, the tension pulley does not need to tension the second belt. At this time, the belt is too loose to make the material collecting roller rotate, and thus the foam cotton cannot be moved, thereby avoiding the waste of foam cotton and preventing the foam cotton from moving under the action of the material collecting roller when the detection mechanism does not work.

[0018] 5) The support table is bolted to the bottom plate through the bottom plate on both sides. When the material feeding roller needs to be replaced, the support table can be separated from the bottom plate, which is convenient for the installation and disassembly of the material feeding roller. The side of the support table is rotatably installed with a carrier roller, which avoids the friction between the foam cotton and the end of the support table, and is conducive to the movement of the foam cotton.

[0019] 6) The water tank is installed with an observation window, through which the water level in the water tank can be easily understood. The side of the water tank away from the cleaning mechanism is installed with a handrail, which is convenient for pushing the device to move. BRIEF DESCRIPTION OF DRAWINGS

[0020] ATTACHMENT Figure 1 is a structure schematic view of the road surface flatness measuring device.

[0021] ATTACHMENT Figure 2 is another view structure schematic view of the road surface flatness measuring device.

[0022] ATTACHMENT Figure 3 is a structure schematic view of the cleaning mechanism in the road surface flatness measuring device.

[0023] ATTACHMENT Figure 4 is a structure schematic view of the spraying mechanism in the road surface flatness measuring device.

[0024] Figure 2 is a schematic diagram of the internal structure of a piston cylinder in a road flatness measuring device according to the present application. Figure 5

[0025] Figure 3 is a schematic diagram of the internal structure of an L-shaped plate in a road flatness measuring device according to the present application. Figure 6

[0026] Figure 7 Figure 4 is a schematic diagram of the structure of a detection mechanism in a road flatness measuring device according to the present application.

[0027] Figure 8 Figure 5 is a schematic diagram of the structure of a marking mechanism in a road flatness measuring device according to the present application.

[0028] Figure 9 Figure 6 is a schematic diagram of the installation of a third pulley and a fourth pulley in a road flatness measuring device according to the present application.

[0029] Figure 10 Figure 7 is a schematic diagram of the structure of a tension pulley in a road flatness measuring device according to the present application.

[0030] Figure 11 Figure 8 is a schematic diagram of the structure of a support table in a road flatness measuring device according to the present application.

[0031] In the figure: 1, base plate; 2, travelling wheel; 3, water tank; 31, water inlet; 32, observation window; 4, handrail frame; 5, cleaning mechanism; 501, box body; 502, driving motor; 503, first rotating shaft; 504, first bevel gear set; 505, second bevel gear set; 506, cleaning roller; 507, first pulley; 6, spraying mechanism; 601, vertical plate; 602, second rotating shaft; 603, cam; 604, piston cylinder; 605, second pulley; 606, first belt; 607, water inlet pipe; 608, water outlet pipe; 609, piston rod; 610, piston; 611, movable plate; 612, first spring; 613, spray head; 7, detection mechanism; 701, horizontal plate; 702, first threaded rod; 703, bearing seat; 704, movable rod; 705, U-shaped frame; 706, detection ball; 707, second spring; 708, guide rod; 709, circular cutter; 8, marking mechanism; 801, first bearing frame; 802, material feeding roller; 803, support table; 804, second bearing frame; 805, material collecting roller; 806, foam cotton; 807, third pulley; 808, tension pulley; 809, fourth pulley; 810, second belt; 811, sliding block; 812, support plate; 813, second threaded rod; 814, carrier roller; 9, L-shaped plate; 10, bolt; 11, wheel shaft. DETAILED DESCRIPTION

[0032] The following will be described with reference to the accompanying drawings. Figures 1-11 ​​​​​​​The technical solutions in the embodiments of the present application are clearly and completely described. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0033] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0034] A road flatness measuring device, comprising a bottom plate 1, the bottom plate 1 is rotatably installed with wheel shafts 11 on both sides of the bottom, the wheel shafts 11 are installed with walking wheels 2 on both sides, one end of the bottom plate 1 is installed with a cleaning mechanism 5, a detection mechanism 7 is installed on the bottom plate 1, an L-shaped plate 9 is arranged above the cleaning mechanism 5, the L-shaped plate 9 is installed on the bottom plate 1 through a connecting block, one end of the cleaning mechanism 5 is connected with one end of the L-shaped plate 9, a spraying mechanism 6 is installed on one side of the cleaning mechanism 5 and the bottom plate 1, the spraying mechanism 6 is connected with the cleaning mechanism, a water tank 3 is installed on the end of the bottom plate 1 away from the cleaning mechanism 5, the water tank 3 is connected with the spraying mechanism 6, a water inlet 31 is installed on the water tank 3.

[0035] The cleaning mechanism 5 comprises a box body 501, a driving motor 502 and a cleaning roller 506, the box body 501 is installed below the end of the bottom plate 1, a first rotating shaft 503 is rotatably installed in the box body 501, the driving motor 502 is installed on the side wall of the box body 501 and connected with the end of the first rotating shaft 503, the inside of the box body 501 and the two ends of the first rotating shaft 503 are respectively provided with a first bevel gear set 504 and a second bevel gear set 505, the driving gears of the first bevel gear set 504 and the second bevel gear set 505 are symmetrically installed at the two ends of the first rotating shaft 503 in the box body 501, the cleaning roller 506 is two in number and is respectively installed on the driven gears of the first bevel gear set 504 and the second bevel gear set 505, the other end of the cleaning roller 506 is rotatably installed on the inner side wall of the L-shaped plate 9, a plurality of bristles are uniformly installed on the circumference and the axial direction of the cleaning roller 506, the bristles on the two cleaning rollers 506 are staggered, the contact area with the ground is increased, the working efficiency of the cleaning mechanism 5 is improved, the driving motor 502 drives the first rotating shaft 503 to rotate, the first bevel gear set 504 and the second bevel gear set 505 on the first rotating shaft 503 rotate, and then drive the two cleaning rollers 506 to rotate in opposite directions, obstacles on the ground are cleaned to the two sides of the device, the cleaning is not blocked by objects, and the accuracy of subsequent ground measurement is improved.

[0036] The spraying mechanism 6 comprises two vertical plates 601 symmetrically installed on both sides of the bottom plate 1, a second rotating shaft 602 rotatably installed between the two vertical plates 601, a cam 603 installed on the second rotating shaft 602, a piston cylinder 604 located below the cam 603 and installed on the bottom plate 1, a piston 610 slidably installed in the piston cylinder 604, a piston rod 609 installed on the top of the piston 610, an activity plate 611 installed on the top end of the piston rod 609 extending to the outside of the piston cylinder 604, a first spring 612 installed between the activity plate 611 and the top of the piston cylinder 604 and around the piston rod 609, a plurality of spray heads 613 evenly installed on the internal top wall of the L-shaped plate 9, a pipeline connecting the plurality of spray heads 613 and located in the L-shaped plate 9, a water inlet pipe 607 connecting the bottom of the piston cylinder 604 and the bottom of the water tank 3, a water outlet pipe 608 connecting the pipeline in the L-shaped plate 9 and the piston cylinder 604, a one-way valve installed on the water inlet pipe 607 and the water outlet pipe 608, the one-way valve on the water inlet pipe 607 allowing water in the water tank 3 to flow to the piston cylinder 604, the one-way valve on the water outlet pipe 608 allowing water in the piston cylinder 604 to flow to the L-shaped plate 9, a first pulley 507 installed on the end of the first rotating shaft 503 extending to the outside of the box 501, a second pulley 605 installed on the end of the second rotating shaft 602 extending to the outside of the vertical plate 601, and a first belt 606 connecting the first pulley 507 and the second pulley 605. When the first rotating shaft 503 rotates, the first pulley 507 on the first rotating shaft 503 moves, the second pulley 605 is driven to rotate by the first belt, the second rotating shaft 602 connected with the second pulley 605 rotates, the cam 603 is driven to rotate by the second rotating shaft 602, the piston rod 609 is driven to move up and down by the activity plate 611, the piston 610 is driven to move up and down in the piston cylinder 604, water in the water tank 3 is sucked into the piston cylinder 604 through the water inlet pipe 607, water in the piston cylinder 604 is delivered to the pipeline in the L-shaped plate 9, and finally water is sprayed downward through the spray heads 613, thereby suppressing dust generated when the cleaning mechanism 5 works, which is conducive to environmental protection.

[0037] The number of the cam 603 is two, two cams 603 are installed upside down and symmetrically on the second rotating shaft 602, the number of the piston cylinder 604, the water inlet pipe 607 and the water outlet pipe 608 corresponds to the number of the cam 603, when the piston 610 moves upward in the piston cylinder 604, the nozzle 613 cannot spray water at this time, and dust is generated, by arranging two cams 603, when one piston 610 moves upward, the other piston 610 moves downward, so that the nozzle 613 sprays water uninterruptedly, and the effect of the spraying mechanism 6 is improved.

[0038] The detection mechanism 7 comprises a horizontal plate 701, a first threaded rod 702, movable rods 704 and a detection ball 706, the first threaded rod 702 is screwed in the middle of the bottom plate 1, the horizontal plate 701 is below the bottom of the first threaded rod 702, guide rods 708 are arranged on the two sides of the horizontal plate 701, the horizontal plate 701 is slidably arranged on the bottom plate 1 through the guide rods 708, a bearing seat 703 is arranged on the middle of the horizontal plate 701, the bottom end of the first threaded rod 702 is arranged on the bearing seat 703, a plurality of movable rods 704 are evenly arranged between the first threaded rod 702 and the guide rod 708 and on the horizontal plate 701, the movable rods 704 penetrate the horizontal plate 701 and the bottom plate 1, the movable rods 704 are slidably connected with the horizontal plate 701 and the bottom plate 1, a U-shaped frame 705 is arranged at the bottom of the movable rod 704, the detection ball 706 is rotatably arranged in the U-shaped frame 705, a second spring 707 is arranged around the movable rod 704 between the U-shaped frame 705 and the horizontal plate 701, when the road surface needs to be detected, the first threaded rod 702 is rotated to drive the horizontal plate 701 to move downward, when the horizontal plate 701 moves, the U-shaped frame 705 and the detection ball 706 move downward synchronously, when the detection ball 706 contacts the ground, the first threaded rod 702 is continuously rotated, at this time, the detection ball 706 cannot continue to move downward, and the second spring 707 is compressed, the detection ball 706 is driven to roll on the ground by the moving device, when the low-lying road surface is reached, the detection ball 706 moves downward under the action of the second spring 707, and drives the movable rod 704 connected thereto to move downward, when the raised road surface is reached, the detection ball 706 moves upward along with the raised road surface, and drives the movable rod 704 connected thereto to move upward and downward, and the road surface detection is realized.

[0039] The water tank 3 is provided with a marking mechanism 8 between the detection mechanism 7, the marking mechanism 8 comprises a first bearing frame 801, a feeding roller 802, a supporting table 803, a second bearing frame 804, a collecting roller 805, the first bearing frame 801 is two in number and is symmetrically arranged on both sides of the bottom plate 1, the feeding roller 802 is rotatably arranged on the first bearing frame 801, the feeding roller 802 is wound with foam cotton 806, the supporting table 803 is arranged above the feeding roller 802 and is arranged on the bottom plate 1, the second bearing frame 804 is two in number and is symmetrically arranged on both sides of the bottom plate 1, the second bearing frame 804 is arranged on one side of the supporting table 803 and has a height greater than that of the first bearing frame 801, the collecting roller 805 is rotatably arranged on the second bearing frame 804, one end of the collecting roller 805 extends to the outside of the second bearing frame 804 and is provided with a third pulley 807, a fourth pulley 809 is arranged on the wheel shaft 11 close to the water tank 3, the fourth pulley 809 is connected with the third pulley 807 through a second belt 810, the foam cotton 806 on the feeding roller 802 passes through the upper surface of the supporting table 803 and is wound on the collecting roller 805, the top of the movable rod 704 is in an inverted U shape, a circular cutter 709 is rotatably arranged on the end of the movable rod 704 away from the U-shaped frame 705, when the detection ball 706 contacts with the road surface, the circular cutter 709 on the movable rod 704 contacts with the foam cotton 806, when the device moves, the fourth pulley 809 on the wheel shaft 11 drives the collecting roller 805 to rotate through the second belt 810, when the collecting roller rotates, the foam cotton 806 moves, when the road surface is flat, the circular cutter 709 leaves a slight trace on the surface of the foam cotton 806, when moving to the low-lying road surface, the movable rod 704 drives the circular cutter 709 to move downward, the circular cutter 709 cuts the surface of the foam cotton 806 at different depths, when moving to the convex road surface, the movable rod 704 drives the circular cutter 709 to move upward, the circular cutter 709 does not contact with the surface of the foam cotton 806, so that the condition of the road flatness is recorded through the foam cotton 806.

[0040] The water tank 3 is provided with a supporting plate 812 on one side close to the third pulley 807, a second threaded rod 813 is transversely and screwedly arranged on the supporting plate 812, a sliding block 811 is arranged on the end of the second threaded rod 813, a sliding groove matched with the sliding block 811 is arranged on the side wall of the water tank 3, the sliding block 811 is slidably arranged in the sliding groove, a tension pulley 808 is rotatably arranged on the side of the sliding block 811 away from the water tank 3, the tightness of the second belt 810 can be realized through the tension pulley 808, when the detection mechanism 7 does not work, the tension pulley 808 does not need to tension the second belt 810, at this time, the belt is too loose to drive the collecting roller 805 to rotate, and then the foam cotton 806 cannot be moved, so that the waste of the foam cotton 806 is avoided, and the foam cotton 806 is prevented from moving under the action of the collecting roller 805 when the detection mechanism 7 does not work.

[0041] The support table 803 is fixed to the bottom plate 1 through the bolts 10 on both sides of the bottom plate 1, when the feeding roller 802 needs to be replaced, the support table 803 can be separated from the bottom plate 1, which is convenient for the installation and dismounting of the feeding roller 802, one side of the support table 803 is rotatably installed with a supporting roller 814, through the supporting roller 814, the friction between the foam cotton 806 and the end of the support table 803 is avoided, which is beneficial to the movement of the foam cotton 806.

[0042] One side of the water tank 3 is installed with an observation window 32, through the observation window 32, the water level in the water tank 3 can be understood, one side of the water tank 3 away from the cleaning mechanism 5 is installed with a handrail 4, through the handrail 4, the pushing device can be moved.

[0043] The above is only an example and description of the structure of the present application, those skilled in the art can make various modifications or supplements to the described specific embodiments or use similar ways to replace, as long as it does not deviate from the structure of the invention or exceed the scope defined by the present claims, it shall belong to the protection scope of the present application.

Claims

1. A road flatness measuring device, comprising a base plate, the bottom of which is rotatably mounted with wheel shafts on both sides, the wheel shafts are mounted with walking wheels on both sides, one end of the base plate is mounted with a cleaning mechanism, and a detection mechanism is mounted on the base plate, characterized in that, The upper side of the cleaning mechanism is provided with an L-shaped plate, the L-shaped plate is installed on the bottom plate through a connecting block, one end of the cleaning mechanism is connected with one end of the L-shaped plate, a spraying mechanism is installed on one side of the cleaning mechanism and the bottom plate, the spraying mechanism is connected with the cleaning mechanism, a water tank is installed on the end of the bottom plate away from the cleaning mechanism, the water tank is connected with the spraying mechanism, a water inlet is installed on the water tank.

2. The road surface roughness measuring device according to claim 1, wherein The cleaning mechanism comprises a box body, a driving motor and a cleaning roller, the box body is installed below the end of the bottom plate, a first rotating shaft is rotatably installed in the box body, the driving motor is installed on the side wall of the box body and connected with the end of the first rotating shaft, a first bevel gear set and a second bevel gear set are respectively installed in the box body and on the two ends of the first rotating shaft, the driving bevel gears in the first bevel gear set and the second bevel gear set are symmetrically installed on the two ends of the first rotating shaft in the box body, the number of the cleaning rollers is two, and the cleaning rollers are respectively installed on the driven bevel gears in the first bevel gear set and the second bevel gear set, the other end of the cleaning roller is rotatably installed on the inner side wall of the L-shaped plate, a plurality of bristles are uniformly installed on the circumferential direction and the axial direction of the cleaning roller, and the bristles on the two cleaning rollers are staggered.

3. A road surface roughness measuring device according to claim 2, wherein The spraying mechanism comprises a vertical plate, a cam, a piston cylinder, a water inlet pipe and a water outlet pipe, the number of the vertical plates is two, and the vertical plates are symmetrically installed on the two sides of the bottom plate, a second rotating shaft is rotatably installed between the two vertical plates, the cam is installed on the second rotating shaft, the piston cylinder is located below the cam and installed on the bottom plate, a piston is slidably installed in the piston cylinder, a piston rod is installed on the top of the piston, the top end of the piston rod extends to the outside of the piston cylinder and is installed with a movable plate, a first spring is installed between the movable plate and the top of the piston cylinder and around the piston rod, the movable plate always abuts against the cam under the action of the first spring, a plurality of nozzles are uniformly installed on the horizontal and vertical directions of the inner top wall of the L-shaped plate, the plurality of nozzles are connected through pipelines, and the pipelines are located in the L-shaped plate, the bottom of the piston cylinder and the bottom of the water tank are connected through the water inlet pipe, the piston cylinder and the pipeline in the L-shaped plate are connected through the water outlet pipe, and a one-way valve is installed on the water inlet pipe and the water outlet pipe, the one-way valve on the water inlet pipe can only allow water in the water tank to flow in the direction of the piston cylinder, and the one-way valve on the water outlet pipe can only allow water in the piston cylinder to flow in the direction of the L-shaped plate, the end of the first rotating shaft away from the driving motor extends to the outside of the box body and is installed with a first pulley, the end of the second rotating shaft close to the first pulley extends to the outside of the vertical plate and is installed with a second pulley, and the first pulley and the second pulley are connected through a first belt.

4. The road surface roughness measuring device according to claim 3, wherein The number of the cams is two, the two cams are upside down and symmetrically installed on the second rotating shaft, and the number of the piston cylinder, the water inlet pipe and the water outlet pipe corresponds to the number of the cams.

5. The road surface roughness measuring device of claim 1, wherein The detection mechanism comprises a horizontal plate, a first threaded rod, movable rods, and a detection ball, the first threaded rod is threadedly installed in the middle of the bottom plate, the horizontal plate is located below the bottom of the first threaded rod, guide rods are installed on both sides of the horizontal plate, the horizontal plate is slidingly installed on the bottom plate through the guide rods, a bearing seat is installed on the upper middle of the horizontal plate, the bottom end of the first threaded rod is installed on the bearing seat, a plurality of movable rods are uniformly installed between the first threaded rod and the guide rods and on the horizontal plate, the movable rods penetrate the horizontal plate and the bottom plate, the movable rods are slidingly connected with the horizontal plate and the bottom plate, a U-shaped bracket is installed at the bottom of the movable rods, the detection ball is rotatably installed in the U-shaped bracket, and a second spring is sleeved around the U-shaped bracket and the movable rods.

6. A road surface roughness measuring device according to claim 5, wherein A marking mechanism is installed between the water tank and the detection mechanism, the marking mechanism comprises a first bearing bracket, a discharging roller, a support table, a second bearing bracket, and a collecting roller, the number of the first bearing brackets is two, and the first bearing brackets are symmetrically installed on both sides of the bottom plate, the discharging roller is rotatably installed on the first bearing bracket, and foam cotton is wound on the discharging roller, the support table is located above the discharging roller and is installed on the bottom plate, the number of the second bearing brackets is two, and the second bearing brackets are symmetrically installed on both sides of the bottom plate, the second bearing bracket is located on one side of the support table and has a height greater than that of the first bearing bracket, the collecting roller is rotatably installed on the second bearing bracket, one end of the collecting roller extends to the outside of the second bearing bracket and is provided with a third pulley, a fourth pulley is installed on the wheel shaft close to the water tank, the fourth pulley is connected with the third pulley through a second belt, the foam cotton on the discharging roller passes over the upper surface of the support table and is wound on the collecting roller, and the top of the movable rod is in an inverted U shape, and a circular cutter is rotatably installed at the end of the movable rod away from the U-shaped bracket.

7. A road surface roughness measuring device according to claim 6, characterized in that: A support plate is installed on the side of the water tank close to the third pulley, a second threaded rod is transversely and threadedly installed on the support plate, a sliding block is installed at the end of the second threaded rod, a sliding groove matched with the sliding block is formed in the side wall of the water tank, the sliding block is slidingly installed in the sliding groove, and a tension pulley is rotatably installed on the side of the sliding block away from the water tank.

8. The road surface roughness measuring device of claim 6, wherein The support table is bolted to the bottom plate through both sides of the bottom plate.

9. The road surface roughness measuring device of claim 6, wherein A supporting roller is rotatably installed on one side of the support table.

10. The road surface roughness measuring device of claim 1, wherein An observation window is installed on one side of the water tank, and a handrail is installed on the side of the water tank away from the cleaning mechanism.

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