Highway pavement flatness detection method

Abstract

The invention discloses a highway pavement flatness detection method, and belongs to the technical field of road detection. The invention relates to a highway pavement flatness detection method, which comprises the following steps of: 1, recording the convex-concave condition of the ground when the whole device moves along a highway pavement to be detected; 2, when the protruding or sinking degree of the road surface exceeds a standard value, the current position is marked automatically; 3, sweeping the road surface in front of the to-be-detected road surface during detection; the spraying holes are formed in the detection wheel, when a road surface protrudes or is sunken to exceed a standard value, different coatings can be sprayed to the current position through the spraying holes, marking of the position is achieved, a worker can conveniently trim the position in time, and the use effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of road detection, and in particular to a method for detecting the flatness of a highway pavement. Background Art

[0002] The road surface flatness refers to the deviation value of the longitudinal concave and convex amount of the road surface. The road surface flatness is one of the main technical indicators for evaluating the road surface quality. It is related to the safety and comfort of driving, the impact force on the road surface and the service life. The uneven road surface will increase the driving resistance and cause the vehicle to produce additional vibration. This vibration will cause driving bumps, affect the speed and safety of driving, and also affect the driving stability and passenger comfort. At the same time, the vibration will also exert impact force on the road surface, thereby aggravating the damage to the road surface and automobile parts and the wear of tires, and increasing the consumption of oil. In order to avoid such problems on the road surface, it is necessary to conduct a flatness test on the highway road surface.

[0003] During the testing process of the existing highway pavement flatness, when the testing wheel moves on the road surface, if the convexity or concavity of a certain part of the road surface exceeds the standard value, it is inconvenient to mark the part, resulting in the inability to perform subsequent maintenance or modification in a timely manner, affecting the use effect. Summary of the invention

[0004] The purpose of the present invention is to solve the problem in the prior art that it is inconvenient to timely mark the places where the convexity and concavity of the road surface exceed the standard value, and to propose a method for detecting the flatness of a highway road surface.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A method for detecting the smoothness of a highway surface comprises the following steps: Step 1: When the entire device moves along the road surface to be tested, the convexity and concavity of the ground are recorded; Step 2: When the convexity or concavity of the road surface exceeds the standard value, the current position is automatically marked; Step 3: During the inspection, the road surface in front of the inspection can be cleaned.

[0006] In order to facilitate the detection of the flatness of the road surface and to be able to spray and mark it in time, preferably, it also includes a base with walking wheels, a mounting plate is lifted and lowered at the bottom of the base, at least one group of detection wheels is arranged at the bottom of the mounting plate, a lifting rod is lifted and lowered on the mounting plate, the detection wheel is rotatably arranged at the bottom of the lifting rod, a displacement sensor is arranged on the top of the lifting rod, and a plurality of spray holes are evenly opened on the detection wheel, and a cleaning roller is rotatably arranged on the mounting plate.

[0007] In order to improve the detection effect of the detection wheel, further, a top plate is fixedly provided on the top of the lifting rod, a mounting groove is opened at the bottom of the top plate, the displacement sensor is fixedly provided in the mounting groove, a rotating seat is fixedly provided at the bottom of the lifting rod, the detection wheel is rotatably provided in the rotating seat, and a first spring is sleeved on the lifting rod, and two ends of the first spring are respectively against the rotating seat and the bottom of the mounting plate.

[0008] In order to facilitate the spraying of the road surface, further, at least two groups of liquid storage chambers are opened in the mounting plate, a diversion pipe is opened in the detection wheel, multiple groups of spray holes are connected with the diversion pipe, and a connecting pipe is opened in the lifting rod, one end of the connecting pipe is connected with the diversion pipe, and the other end of the connecting pipe cooperates with the two groups of liquid storage chambers respectively.

[0009] Furthermore, a filling tube for adding liquid to the liquid storage chamber is fixedly arranged on the mounting plate, a tube cover with an overflow valve is threadedly connected to the mouth of the filling tube, a plurality of slide grooves are provided in the mounting plate, the lifting rods are slidably connected in the corresponding slide grooves, a receiving groove is provided on the inner wall of the slide groove, a push plate is slidably arranged in the receiving groove, the push plate is fixedly connected to the lifting rod, and an airbag is fixedly arranged in the receiving groove, two groups of airbags are provided, one end of the two groups of airbags away from the receiving groove is fixedly connected to the push plate, an air inlet pipe and an air outlet pipe with a one-way valve are fixedly arranged on the two groups of airbags, and the two groups of air outlet pipes are respectively communicated with the bottom of the corresponding liquid storage chamber.

[0010] Furthermore, a plug block is fixedly arranged in the spray hole, a plurality of discharge holes are formed on the plug block, a sliding rod is lifted and lowered on the plug block, a sealing plate is fixedly arranged at the bottom of the sliding rod, a sealing gasket is fixedly arranged on the top end face of the sealing plate, the outlet end face of the discharge hole abuts against the sealing gasket, and a pressing plate with a groove is fixedly arranged on the top of the sliding rod, a sphere is arranged in the spray hole, and the sphere cooperates with the pressing plate.

[0011] Furthermore, a piston cavity is provided in the plug block, a piston plate is slidably provided in the piston cavity, the piston plate is fixedly connected to the sliding rod, a second spring is sleeved on the sliding rod, the two ends of the second spring are respectively abutted against the piston plate and the bottom of the piston cavity, and an exhaust hole is provided on the plug block, the two ends of the exhaust hole are respectively connected to the piston cavity and the spray hole outlet.

[0012] Furthermore, a vertical plate is fixedly provided at the bottom of the mounting plate, fixed plates are fixedly provided on both sides of the vertical plate, both ends of the cleaning roller are rotatably connected to the fixed plates respectively, a gear ring is fixedly provided at one end of the cleaning roller, a motor is fixedly provided on one group of the fixed plates, and a first gear is fixedly provided at the output end of the motor, and the first gear is meshed with the outer wall of the gear ring.

[0013] Furthermore, a through hole is provided in the fixed plate, and both ends of the cleaning roller are rotatably arranged in the through holes. A through slot connected to the through hole is provided in the cleaning roller, and a dustproof net is fixedly provided at one end of the through slot. A storage cavity is provided in the vertical plate, and the other end of the through slot is connected to the storage cavity through a pipe, and a rotating shaft is rotatably provided in one group of the through holes, and a wind blade is fixedly provided at one end of the rotating shaft extending into the through slot, and a second gear is fixedly provided on the rotating shaft, and the second gear is meshed with the inner wall of the gear ring through an intermediate gear.

[0014] Furthermore, a first purge hole and a second purge hole are respectively provided at the bottom of the vertical plate, an intermediate cavity connected to the storage cavity is provided on the vertical plate, one end of the first purge hole and the second purge hole are both connected to the intermediate cavity, a gate plate is provided for lifting and lowering in the intermediate cavity, a sealing plate for sealing the air inlet end of the first purge hole is fixedly provided on the gate plate, and a push rod with a Z-shaped structure is slidably provided on the vertical plate, one end of the push rod is fixedly connected to the gate plate, and a first magnetic block is fixedly provided on the other end of the push rod, and a second magnetic block magnetically attracted to the first magnetic block is fixedly provided on the outer wall of the rotating seat.

[0015] Compared with the prior art, the present invention provides a method for detecting the flatness of a highway surface, which has the following beneficial effects: 1. The road surface flatness detection method has a spray hole on the detection wheel. When the road surface bulge or depression exceeds the standard value, the spray hole can spray different coatings to the current position to mark the position, so that the staff can repair the position in time and improve the use effect; 2. The method for detecting the flatness of a highway road surface is that when the cleaning roller rotates to clean the road surface, the gear ring can drive the second gear and the rotating shaft to rotate through the intermediate gear, and then drive the wind blades to generate wind force in the through slot, that is, the external gas enters the through slot through the dustproof net, then enters the storage cavity through the pipeline, and finally blows out from the first blowing hole or the second blowing hole. In this process, it is not only convenient to blow the road surface and further improve the cleaning effect, but also can increase the air flow in the through slot, realize the heat dissipation of the cleaning roller, and improve the use effect; 3. The highway pavement flatness detection method adjusts the gas to be blown out from the first purge hole or the second purge hole by the lifting and lowering of the rotating seat, so as to facilitate the purge of dust on the road ahead, especially the second purge hole can purge the dust in the depression of the road surface, thereby improving the detection quality.

[0016] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The present invention has a spray hole on the detection wheel. When the convexity or depression of the road surface exceeds the standard value, the spray hole can spray different coatings to the current position to mark the position, which is convenient for the staff to repair the place in time and improve the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a method for detecting the flatness of a road surface proposed by the present invention Figure 1 ; Figure 2 A schematic diagram of a method for detecting the flatness of a road surface proposed by the present invention Figure 2 ; Figure 3 A side view of a highway pavement flatness detection method proposed by the present invention; Figure 4 A schematic diagram of the structure of a mounting plate for a method for detecting the flatness of a road surface provided by the present invention; Figure 5 A road surface roughness detection method proposed by the present invention Figure 4 A magnified view of part A; Figure 6 The present invention provides a schematic structural diagram of a gate plate for detecting the flatness of a highway pavement.

[0018] In the figure: 1, base; 101, guide groove; 2, mounting plate; 201, guide block; 202, adjusting screw; 203, liquid storage chamber; 204, air bag; 3, lifting rod; 301, top plate; 302, rotating seat; 303, first spring; 304, push plate; 305, connecting pipe; 4, detection wheel; 401, shunt pipe; 402, spray hole; 5, displacement sensor; 6, plug block; 601, Discharge hole; 602, piston chamber; 603, pressing plate; 604, sliding rod; 605, sealing plate; 606, exhaust hole; 7, vertical plate; 701, fixing plate; 702, storage chamber; 703, intermediate chamber; 704, first purge hole; 705, second purge hole; 8, cleaning roller; 801, through groove; 9, gate; 901, sealing plate; 902, push rod; 10, rotating shaft; 11, wind blade. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Example

[0021] Reference Figure 1-Figure 6 , a method for detecting the flatness of a highway surface, comprising the following steps: Step 1: When the entire device moves along the road surface to be tested, the convexity and concavity of the ground are recorded; The base 1 is placed on the road surface of the road to be tested, and the mounting plate 2 is adjusted to be raised and lowered, so that the detection wheel 4 at the bottom of the mounting plate 2 contacts the road surface. During the movement of the base 1, the detection wheel 4 will elastically rise and fall on the mounting plate 2 with the ups and downs of the road surface under the elastic force of the first spring 303. At this time, the displacement sensor 5 can record the continuous ups and downs of the road surface and store them in the portable computer on the base 1 for subsequent viewing; Step 2: When the convexity or concavity of the road surface exceeds the standard value, a mark is automatically made at that location; During the detection process, when the degree of convexity or concavity of the road surface exceeds the standard value, the detection wheel 4 at the current position can spray the area. Furthermore, the colors of the paint sprayed on the convexity and concavity are different, which is convenient for distinction. Here, we take the requirements for the flatness of the highway road surface as an example. The maximum gap is usually required to be less than four millimeters, that is, when the detection wheel 4 is on the standard road surface, the up and down displacement during the travel process is less than two millimeters. When the up or down displacement exceeds two millimeters, the spray hole 402 on the detection wheel 4 will spray a solution for marking, which is convenient for construction personnel to handle and repair; Step 3: Clean the road ahead while testing; In order to improve the accuracy of the detection, the road surface will be cleaned uniformly before the detection. During the detection process, the cleaning roller 8 can further clean the road surface to reduce the impact of fixed particles or dust on the road surface on the detection data and improve the use effect.

[0022] Reference Figure 1 and Figure 2A method for detecting the flatness of a road surface also includes a base 1 with walking wheels. When in use, it is convenient to carry out mobile detection. A mounting plate 2 is lifted and lowered at the bottom of the base 1. A guide groove 101 is opened on the base 1. Guide blocks 201 are fixedly arranged at both ends of the mounting plate 2. The guide blocks 201 are slidably arranged in the corresponding guide grooves 101. An adjusting screw 202 is rotatably arranged on the mounting plate 2. The end of the adjusting screw 202 away from the mounting plate 2 is threadedly connected to the base 1. An adjusting knob is fixedly arranged on the top of the adjusting screw 202. When in use When the adjusting screw 202 is driven to rotate by the adjusting knob, the mounting plate 2 can be driven to slide up and down along the guide groove 101. When the mounting plate 2 slides down to the bottom of the guide groove 101, the bottom of the detection wheel 4 contacts the road surface, and the liquid inlet end of the connecting pipe 305 is at the middle position of the two groups of liquid storage chamber 203 drainage outlets, and a scale line is fixedly provided on the top side wall of the lifting rod 3, which can further determine the position of the liquid inlet end of the connecting pipe 305, thereby improving the use effect. When the detection is completed, the mounting plate 2 is driven to rise, so that the detection wheel 4 can be kept away from the road surface, thereby improving the detection effect. The protective effect of the detection wheel 4 is improved, and at this time the top plate 301 falls on the mounting plate 2, which can reduce the dust and the like from entering the mounting groove, which is helpful for protecting the displacement sensor 5 and improving the service life. At least one group of detection wheels 4 is arranged at the bottom of the mounting plate 2. Here, we preferably arrange four groups of detection wheels 4, and a lifting rod 3 is arranged on the mounting plate 2 for lifting. The lifting rod 3 is also preferably four groups. The four groups of detection wheels 4 are respectively rotated and arranged at the bottom of the corresponding lifting rod 3, and a displacement sensor 5 is arranged on the top of the lifting rod 3 to facilitate the detection of the up and down displacement of the lifting rod 3 and realize the flatness of the road surface. The detection wheel 4 is provided with a plurality of spray holes 402 evenly, and the spray holes 402 are provided with two to twenty groups. Here, we prefer twelve groups, and a rotary groove is provided on the detection wheel 4. The outlet of the spray hole 402 is located in the rotary groove. A cleaning roller 8 is rotatably arranged on the mounting plate 2. When in use, by providing the spray holes 402 on the detection wheel 4, when the road surface protrudes or sags beyond the standard value, the spray holes 402 can spray different coatings to the current position to mark the position, so as to facilitate the staff to repair the place in time and improve the use effect.

[0023] Reference Figure 1-Figure 4A top plate 301 is fixedly arranged on the top of the lifting rod 3, and a mounting groove is opened at the bottom of the top plate 301, and the displacement sensor 5 is fixedly arranged in the mounting groove. When use is over, the top plate 301 falls on the mounting plate 2, and the bottom end surface of the mounting groove is against the top end surface of the mounting plate 2, which can reduce the entry of dust and the like into the mounting groove, reduce the impact on the displacement sensor 5, and improve the use effect of the displacement sensor 5. A rotating seat 302 is fixedly arranged at the bottom of the lifting rod 3, and the detection wheel 4 is rotatably set in the rotating seat 302, and a first spring 303 is sleeved on the lifting rod 3, and the two ends of the first spring 303 are respectively against the rotating seat 302 and the bottom of the mounting plate 2. When in use, by sleeved on the lifting rod 3 The first spring 303, under the action of the elastic force of the first spring 303, during detection, the detection wheel 4 can always be against the road surface, thereby improving the detection effect.

[0024] Reference Figure 3 and Figure 4 At least two groups of liquid storage chambers 203 are provided in the mounting plate 2. Here, we prefer two groups of liquid storage chambers 203. The two groups of liquid storage chambers 203 are distributed in the upper and lower parts. The paints stored in the two groups of liquid storage chambers 203 are of different colors. The paints can be water-soluble paints, degradable paints or photocatalytic paints. Water-soluble paints are preferred. After spraying, it is convenient to remove when repairing the road surface. A shunt pipe 401 is provided in the detection wheel 4, and the multiple groups of spray holes 402 are connected to the shunt pipe 401. A connecting pipe 305 is provided in the lifting rod 3, and one end of the connecting pipe 305 is connected to the shunt pipe 401. Connect, and match the other end of the connecting tube 305 with the two groups of liquid storage chambers 203 respectively. Before testing, make the liquid inlet end of the connecting tube 305 in the middle position of the drainage outlets of the two groups of liquid storage chambers 203. When encountering a deeper groove, that is, a depression exceeding the standard value, the liquid inlet end of the connecting tube 305 is connected with the drainage outlet of the lower liquid storage chamber 203, and the spray hole 402 can spray paint to the road surface for marking, so as to facilitate subsequent repairs by the staff. Similarly, when encountering a protrusion exceeding the standard value, the liquid inlet end of the connecting tube 305 is connected with the drainage outlet of the upper liquid storage chamber 203 to achieve marking and improve the use effect.

[0025] Reference Figure 3 and Figure 4A liquid adding pipe for adding liquid to the liquid storage chamber 203 is fixedly arranged on the mounting plate 2, a pipe cover with an overflow valve is threadedly connected to the mouth of the liquid adding pipe, and a plurality of groups of slide grooves are arranged in the mounting plate 2, and the lifting rods 3 are slidably connected in the corresponding slide grooves respectively, and the drainage port of the liquid storage chamber 203 is arranged on the inner wall of the slide groove, and a sealing ring is fixedly arranged on the end face of the drainage port to improve the sealing effect and reduce leakage, and the drainage port of the liquid storage chamber 203 is a small hole, and the overflow pipe cannot be reversely connected, that is, when the road surface flatness does not exceed the standard value, the liquid in the liquid storage chamber 203 will not flow out from its drainage port, reducing the waste of paint, and a receiving groove is arranged on the inner wall of the liquid adding pipe slide groove, and a push plate 304 is slidably arranged in the receiving groove, and the push plate 304 is fixedly connected to the lifting rod 3, and an air bag 204 is fixedly arranged in the receiving groove, and two groups of air bags 204 are arranged, and the two groups are respectively located at the top and bottom of the push plate 304, and the two groups are connected. The ends of the airbags 204 away from the receiving grooves are fixedly connected to the push plates 304, and an air inlet pipe and an air outlet pipe with a one-way valve are fixedly arranged on the two groups of airbags 204, respectively, and the two groups of air outlet pipes are connected to the bottom of the corresponding liquid storage chamber 203. When in use, when the detection wheel 4 floats up and down along the road surface during the detection process, the upper or lower airbags 204 can be squeezed respectively through the push plates 304, and the gas in the airbags 204 is pressed into the corresponding liquid storage chamber 203 to increase the pressure in the liquid storage chamber 203, so that when the connecting pipe 305 is connected to it, the solution in the liquid storage chamber 203 can enter the spray hole 402. If the pressure in the liquid storage chamber 203 exceeds the set value of the overflow valve, the excess air can be discharged from the liquid storage chamber 203, and when the air enters the liquid storage chamber 203, it has the effect of stirring the solution in the liquid storage chamber 203, thereby reducing the precipitation of the solution in the liquid storage chamber 203 and improving the use effect.

[0026] Reference Figure 5A plug block 6 is fixedly arranged in the spray hole 402, and a plurality of discharge holes 601 are provided on the plug block 6. The discharge holes 601 are provided in two to ten groups, preferably four groups. The plug block 6 blocks the spray hole 402. When the discharge holes 601 are in an open state, the spray holes 402 at both ends of the plug block 6 are connected through the discharge holes 601. A sliding rod 604 is lifted and lowered on the plug block 6. A sealing plate 605 is fixedly arranged at the bottom of the sliding rod 604, and a sealing gasket is fixedly arranged on the top end surface of the sealing plate 605. The outlet end face of the discharge hole 601 is butted against the sealing gasket. When the spray hole 402 is not in use, the outlet of the discharge hole 601 can be blocked. A pressing plate 603 with a groove is fixedly arranged on the top of the slide bar 604. A ball is arranged in the spray hole 402. The ball and the pressing plate 603 are matched. A blocking rod is fixedly arranged in the spray hole 402 to prevent the ball from entering the shunt pipe 401. A piston cavity 602 is opened in the plug block 6. A piston plate is slidably provided, the piston plate is fixedly connected to the slide bar 604, and a second spring is sleeved on the slide bar 604, the two ends of the second spring are respectively against the piston plate and the bottom of the piston cavity 602, and an exhaust hole 606 is opened on the plug block 6, and the two ends of the exhaust hole 606 are respectively connected to the piston cavity 602 and the outlet of the spray hole 402. When in use, when the ball completes falling on the pressing plate 603 and is in the groove on the pressing plate 603, under the action of the gravity of the ball, the rigid The elastic force of the second spring can be overcome, and the pressing plate 603, the sliding rod 604 and the sealing plate 605 slide downward. At this time, the discharge hole 601 is in an open state, and the paint can be sprayed out from there in a positive direction, achieving accurate marking and improving the use effect. The sliding rod 604 slides downward with the piston plate in the piston chamber 602, and the gas in the piston chamber 602 can be blown to the outlet end of the spray hole 402 through the exhaust hole 606, which can not only dredge the spray hole 402, but also help to spray the solution.

[0027] Reference Figure 1-Figure 4 A vertical plate 7 is fixedly arranged at the bottom of the mounting plate 2, and the vertical plate 7 is located at the front end of the moving direction of the detection wheel 4. Fixed plates 701 are fixedly arranged on both sides of the vertical plate 7, and the two ends of the cleaning roller 8 are rotatably connected to the fixed plates 701 respectively. A gear ring is fixedly arranged at one end of the cleaning roller 8, and a motor is fixedly arranged on one set of the fixed plates 701, and a first gear is fixedly arranged at the output end of the motor, and the first gear is meshed with the outer wall of the gear ring. When in use, by starting the motor to rotate the first gear, the cleaning roller 8 can be driven to rotate through the meshing of the first gear and the gear ring to clean the road surface in the moving direction of the detection wheel 4, thereby reducing dust on the road surface and improving the detection effect.

[0028] Reference Figure 1 and Figure 4A through hole is provided in the fixed plate 701, and both ends of the cleaning roller 8 are rotatably arranged in the through hole. A through slot 801 connected to the through hole is provided in the cleaning roller 8, and a dustproof net is fixedly provided at one end of the through slot 801. A storage chamber 702 is provided in the vertical plate 7, and the other end of the through slot 801 is connected to the storage chamber 702 through a pipeline. A rotating shaft 10 is rotatably provided in one group of through holes, that is, one group of fixed plates 701, and a wind blade 11 is fixedly provided at one end of the rotating shaft 10 extending into the through slot 801. The wind blade 11 is provided in two to eight groups, preferably three groups, and is evenly distributed on the rotating shaft 10. The second gear is meshed with the inner wall of the gear ring through the intermediate gear. When in use, when the cleaning roller 8 rotates to clean the road surface, the gear ring can drive the second gear and the rotating shaft 10 to rotate through the intermediate gear, and then drive the wind blades 11 to generate wind force in the through groove 801, that is, the external gas enters the through groove 801 through the dustproof net, and then enters the storage chamber 702 through the pipeline, and finally blows out from the first purge hole 704 or the second purge hole 705. In this process, it is not only convenient to blow the road surface and further improve the cleaning effect, but also can increase the air flow in the through groove 801, realize the heat dissipation of the cleaning roller 8, and improve the use effect.

[0029] Reference Figure 4 and Figure 6A first purge hole 704 and a second purge hole 705 are respectively provided at the bottom of the vertical plate 7. The air outlet of the first purge hole 704 faces the road surface of the cleaning roller 8, and the second purge hole 705 blows toward the bottom of the detection wheel 4. An intermediate cavity 703 connected with the storage cavity 702 is provided on the vertical plate 7. One end of the first purge hole 704 and the second purge hole 705 are both connected with the intermediate cavity 703. A gate plate 9 is lifted and lowered in the intermediate cavity 703. The first purge hole 704 and the second purge hole 705 are respectively located on both sides of the gate plate 9. A third spring is provided at the bottom of the gate plate 9. Under the elastic force of the third spring, the top of the gate plate 9 can be abutted against the inner top of the intermediate cavity 703. Moreover, the channel connecting the storage cavity 702 and the intermediate cavity 703 and the first purge hole 704 are simultaneously located on the same side of the gate plate 9 valve. A blocking plate 901 for blocking the air inlet end of the first purge hole 704 is fixedly provided on the gate plate 9. , and a push rod 902 with a Z-shaped structure is slidably arranged on the vertical plate 7, one end of the push rod 902 is fixedly connected to the gate plate 9, and a first magnetic block is fixedly arranged at the other end of the push rod 902, and a second magnetic block magnetically attracted to the first magnetic block is fixedly arranged on the outer wall of the rotating seat 302. When in use, when the detection wheel 4 walks normally for detection and does not enter the depression on the road surface, the gas always passes through the first purge hole 704 to purge the road surface to reduce dust on the road surface. When the detection wheel 4 enters a lower part of the road surface, under the action of the magnetic attraction of the second magnetic block on the rotating seat 302 and the first magnetic block, the push rod 902, the gate plate 9 and the blocking plate 901 can be slid downward, and the blocking plate 901 blocks the air inlet end of the first purge hole 704, and the air is blown to the depression of the road surface through the second purge hole 705, so as to purge the dust in the depression, thereby improving the detection effect of the road surface flatness.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A method for detecting the flatness of a highway surface, characterized in that: The following steps are involved: Step 1: When the entire device moves along the road surface to be tested, the convexity and concavity of the ground are recorded; Step 2: When the convexity or concavity of the road surface exceeds the standard value, the current position is automatically marked; Step 3: During the inspection, the road surface in front of the inspection can be cleaned.

2. A method for detecting road surface flatness according to claim 1, characterized in that: It also comprises a base (1) with walking wheels, a mounting plate (2) being provided at the bottom of the base (1) for lifting, at least one group of detection wheels (4) being provided at the bottom of the mounting plate (2), a lifting rod (3) being provided on the mounting plate (2), the detection wheel (4) being rotatably provided at the bottom of the lifting rod (3), a displacement sensor (5) being provided at the top of the lifting rod (3), and a plurality of groups of spray holes (402) being evenly provided on the detection wheel (4), and a cleaning roller (8) being rotatably provided on the mounting plate (2).

3. A method for detecting road surface flatness according to claim 2, characterized in that: A top plate (301) is fixedly arranged on the top of the lifting rod (3), a mounting groove is provided at the bottom of the top plate (301), the displacement sensor (5) is fixedly arranged in the mounting groove, a rotating seat (302) is fixedly arranged at the bottom of the lifting rod (3), the detection wheel (4) is rotatably arranged in the rotating seat (302), and a first spring (303) is sleeved on the lifting rod (3), the two ends of the first spring (303) respectively abut against the rotating seat (302) and the bottom of the mounting plate (2).

4. A method for detecting road surface flatness according to claim 3, characterized in that: At least two groups of liquid storage chambers (203) are provided in the mounting plate (2), a flow diversion pipe (401) is provided in the detection wheel (4), a plurality of groups of spray holes (402) are connected to the flow diversion pipe (401), and a connecting pipe (305) is provided in the lifting rod (3), one end of the connecting pipe (305) is connected to the flow diversion pipe (401), and the other end of the connecting pipe (305) is respectively matched with the two groups of liquid storage chambers (203).

5. A method for detecting road surface flatness according to claim 4, characterized in that: A liquid adding tube for adding liquid to the liquid storage chamber (203) is fixedly arranged on the mounting plate (2), a tube cover with an overflow valve is threadedly connected to the mouth of the liquid adding tube, a plurality of slide grooves are provided in the mounting plate (2), the lifting rods (3) are slidably connected in the corresponding slide grooves, a receiving groove is provided in the inner wall of the slide groove, a push plate (304) is slidably arranged in the receiving groove, the push plate (304) is fixedly connected to the lifting rod (3), and an air bag (204) is fixedly arranged in the receiving groove, two groups of the air bags (204) are provided, one end of the two groups of the air bags (204) away from the receiving groove is fixedly connected to the push plate (304), an air inlet pipe and an air outlet pipe with a one-way valve are fixedly arranged on the two groups of the air bags (204), and the two groups of the air outlet pipes are respectively connected to the bottom of the corresponding liquid storage chamber (203).

6. A method for detecting road surface flatness according to claim 5, characterized in that: A plug block (6) is fixedly arranged in the spray hole (402), and a plurality of discharge holes (601) are provided on the plug block (6). A sliding rod (604) is lifted and lowered on the plug block (6), and a sealing plate (605) is fixedly arranged at the bottom of the sliding rod (604). A sealing gasket is fixedly arranged on the top end face of the sealing plate (605). The outlet end face of the discharge hole (601) abuts against the sealing gasket, and a pressing plate (603) with a groove is fixedly arranged on the top of the sliding rod (604). A sphere is arranged in the spray hole (402), and the sphere cooperates with the pressing plate (603).

7. A method for detecting road surface flatness according to claim 6, characterized in that: A piston cavity (602) is provided in the plug block (6), a piston plate is slidably provided in the piston cavity (602), the piston plate is fixedly connected to the slide rod (604), a second spring is sleeved on the slide rod (604), two ends of the second spring are respectively abutted against the piston plate and the bottom of the piston cavity (602), and an exhaust hole (606) is provided on the plug block (6), and two ends of the exhaust hole (606) are respectively connected to the piston cavity (602) and the outlet of the spray hole (402).

8. A method for detecting road surface flatness according to claim 7, characterized in that: A vertical plate (7) is fixedly arranged at the bottom of the mounting plate (2), and fixed plates (701) are fixedly arranged on both sides of the vertical plate (7), and both ends of the cleaning roller (8) are rotatably connected to the fixed plates (701), and a gear ring is fixedly arranged at one end of the cleaning roller (8), and a motor is fixedly arranged on one group of the fixed plates (701), and a first gear is fixedly arranged at the output end of the motor, and the first gear is meshed with the outer wall of the gear ring.

9. A method for detecting road surface flatness according to claim 8, characterized in that: The fixed plate (701) is provided with a through hole, and both ends of the cleaning roller (8) are rotatably arranged in the through hole. The cleaning roller (8) is provided with a through slot (801) connected to the through hole, and a dust screen is fixedly arranged at one end of the through slot (801). The vertical plate (7) is provided with a storage chamber (702), and the other end of the through slot (801) is connected to the storage chamber (702) through a pipeline. A rotating shaft (10) is rotatably arranged in one group of the through holes, and a wind blade (11) is fixedly arranged at one end of the rotating shaft (10) extending into the through slot (801), and a second gear is fixedly arranged on the rotating shaft (10), and the second gear is meshed with the inner wall of the gear ring through an intermediate gear.

10. A method for detecting road surface flatness according to claim 9, characterized in that: A first purge hole (704) and a second purge hole (705) are respectively provided at the bottom of the vertical plate (7), an intermediate cavity (703) connected to the storage cavity (702) is provided on the vertical plate (7), one end of each of the first purge hole (704) and the second purge hole (705) is connected to the intermediate cavity (703), a gate plate (9) is provided in the intermediate cavity (703) for lifting, a blocking plate (901) for blocking an air inlet end of the first purge hole (704) is fixedly provided on the gate plate (9), a push rod (902) in a Z-shaped structure is slidably provided on the vertical plate (7), one end of the push rod (902) is fixedly connected to the gate plate (9), and a first magnetic block is fixedly provided on the other end of the push rod (902), and a second magnetic block magnetically attracted to the first magnetic block is fixedly provided on the outer wall of the rotating seat (302).

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