Anti-freezing pavement flatness detection device

Abstract

The invention belongs to the technical field of road surface detection, and particularly relates to an anti-freezing road surface flatness detection device which comprises a detection frame and a PLC installed on the inner wall of the lower side of the detection frame, and the left side wall of the detection frame is fixedly connected with a display control box. Before the flatness of the anti-freezing pavement with the embossed surface is detected, the pavement embossed surface is firstly measured and analyzed in detail, the bumping degree caused by the embossed surface is detected, and then the bumping caused by the embossed surface is compensated, so that accurate flatness data can be obtained in the subsequent measurement process; according to the anti-freezing pavement embossing detection device, the abrasion degree of pavement embossing can be automatically detected while the flatness of an anti-freezing pavement is detected, and when it is detected that the embossing is seriously abraded, an operator can be timely reminded of the situation, follow-up repairing by the operator is facilitated, and the friction force of the anti-freezing pavement is guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of road surface detection, and in particular relates to an antifreeze road surface flatness detection device. Background Art

[0002] Regular road surface roughness detection can provide dynamic information on road surface conditions. By comparing and analyzing detection data from different periods, the changing trend of road surface roughness can be determined. For example, a road surface roughness detection device is proposed in patent publication number CN118583114B.

[0003] In the road surface flatness detection operation, the existing conventional detection device requires the detection wheel to fit tightly to the road surface, and uses a towing vehicle to drive the detection device to move on the road surface, so as to realize the road surface flatness detection process. However, due to the special anti-skid requirements of anti-freeze road surface, embossing will be constructed on the road surface after the construction is completed. When the detection wheel rolls on such embossing, it will inevitably cause additional vibration effects, and the detection instrument is prone to mistakenly judge such conventional bumps induced by the texture as the unevenness of the road surface itself, which will cause the measured data to deviate from the actual flatness, and ultimately cause the measurement results to be unable to accurately present the true flatness level of the road surface.

[0004] Therefore, an antifreeze road surface flatness detection device is proposed to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a freeze-resistant road surface flatness detection device in view of the above problems.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: an antifreeze road surface flatness detection device, comprising a detection frame and a PLC controller installed on the inner wall of the lower side of the detection frame, the left side wall of the detection frame is fixedly connected with a display control box, the upper side wall of the detection frame is fixedly connected with a detection electric push rod, the moving end of the detection electric push rod passes through the detection frame, and is fixedly connected with a lifting plate through a fixed frame, the inner wall of the detection frame is fixedly connected with a stop switch, the stop switch is electrically connected to the detection electric push rod through the PLC controller, the lower side wall of the detection frame is fixedly connected with two rollers, and also includes: Three vertical cylinders are arranged on the side walls of the lifting plate and are arranged in sequence from left to right. Vertical rods are inserted into the three vertical cylinders. The rod walls of the three vertical rods are fixedly sleeved with fixing rings. The same spring is fixedly connected between the fixing rings and the vertical cylinders. The vertical rods can slide up and down in the vertical cylinders. The lower ends of the vertical rods on the left and right sides are fixedly connected with detection wheels, and the lower end of the vertical rod in the middle is fixedly connected with an auxiliary roller. Two detection components are both arranged on the upper side wall of the lifting plate, and the two detection components are respectively located behind the left and right vertical cylinders; Two display components are connected to the inner walls on the left and right sides of the detection frame respectively, and are used to display the number of times the road surface is too convex or concave; The tilt mark assembly is arranged on the side wall of the detection frame and is used to mark the excessive tilt positions on the left and right sides of the road surface.

[0007] Preferably, the two detection components each include a detection cover, and the two detection covers are fixedly connected to the upper side wall of the lifting plate, and the two detection covers are respectively located behind the left and right vertical cylinders, and the inner wall of the detection cover is fixedly connected with a first resistor plate, and is connected with a second resistor plate through a positioning component, and the ends of the first resistor plate and the second resistor plate that are away from each other are electrically connected to the PLC controller, and the rear ends of the two vertical rods located on the left and right sides are fixedly connected with a placement plate, and the rear end of the placement plate is fixedly connected with a first conductive block, and the first conductive block is electrically connected to an external power supply.

[0008] Preferably, the positioning assembly includes a positioning cylinder fixedly connected to the rear side of the detection cover, a positioning block is slidably provided inside the positioning cylinder, two rubber rings are fixedly sleeved on the outer wall of the positioning block, a positioning groove is provided on the rear side wall of the positioning block, and a positioning electric push rod is inserted in the positioning groove, a rough block is fixedly connected to the movable end of the positioning electric push rod, a reset electric push rod is fixedly connected to the lower side wall of the positioning cylinder, a sliding plate is fixedly connected to the front side wall of the positioning block, the positioning cylinder and the side walls of the detection cover are both provided with sliding openings that match the sliding plate, the front end of the sliding plate extends out of the sliding opening and is fixedly connected to the second resistor plate, a pushing electric push rod is fixedly connected to the lower side wall of the placement plate, the moving end of the pushing electric push rod is fixedly connected to the pushing seat, and the lower end of the second resistor plate is fixedly connected to the connecting plate via a bracket.

[0009] Preferably, the two display assemblies each include a working box, and the two working boxes are respectively fixedly connected to the left and right inner walls of the detection frame, the upper inner wall of the working box is fixedly connected to a lifting seat through a spring, the lower side wall of the lifting seat is fixedly connected to a permanent magnet block, the lower inner wall of the working box is fixedly connected to an electromagnetic block, the ends of the first resistor plate and the second resistor plate on the same side that are away from each other are electrically connected to the electromagnetic block, the lower side wall of the lifting seat is fixedly connected to a trigger plate, the trigger plate is electrically connected to an external power supply, the inner wall of the working box is inlaid with a trigger block, and the trigger block is electrically connected to a PLC controller, the side walls of the two roller fixing parts are fixedly connected to a display tube, the lower side wall of the display tube is fixedly connected to an air intake pipe, an electrically controlled one-way valve is provided in the air intake pipe, and the lower end of the air intake pipe The cam is fixedly connected to the inner wall of the air intake cylinder, and a one-way tube is connected to the side wall of the air intake cylinder. A small one-way valve is arranged in the one-way tube. The side wall of the air intake cylinder is connected to a pressure relief tube, and a pressure valve is arranged in the pressure relief tube. A retaining ring is fixedly connected to the inner wall of the air intake cylinder, and a trigger switch is connected to the lower side wall of the retaining ring. The lower side wall of the retaining ring is fixedly connected to a piston plate through a spring. The lower side wall of the piston plate is fixedly connected to a push frame. The lower end of the push frame extends out of the air intake cylinder. The end of the roller shaft is fixedly connected to a cam matching the push frame. A placing ring is fixedly connected to the inner wall of the display cylinder, a piston seat is placed above the placing ring, an indicator frame is fixedly connected to the upper side wall of the piston seat, and the indicator frame is an inverted L-shaped structure. A scale is provided on the surface of the display cylinder, and a counterweight is fixedly connected to the lower side wall of the piston seat.

[0010] Preferably, the tilt mark assembly includes a disc fixedly connected to the right side of the detection frame, the center position of the disc is rotatably connected to a vertical rod, the lower end of the vertical rod is fixedly connected to a power block, the power block is electrically connected to an external power supply, the front side wall of the disc is inlaid with two arc plates, the upper ends of the two arc plates are electrically connected to a PLC controller respectively, the left and right sides of the detection frame are fixedly connected to a paint box, the front side wall of the paint box is fixedly connected to a pump, the liquid inlet end of the pump is connected to the paint box, and the liquid outlet end of the pump is fixedly connected to a nozzle.

[0011] Preferably, the side wall of the display tube is fixedly connected to a vent pipe, and a control valve is provided in the vent pipe.

[0012] Preferably, the left and right side rod walls of the middle vertical rod are fixedly connected with third resistor plates through brackets, and the lower ends of the two third resistor plates are electrically connected to the PLC controller. The side walls on the opposite sides of the two vertical rods on the left and right sides are fixedly connected with second conductive blocks through brackets, and the second conductive blocks are electrically connected to an external power supply.

[0013] Preferably, the lower side wall of the lifting plate is fixedly connected with an elastic rod, and the lower end of the elastic rod is fixedly connected with a wheeled rangefinder.

[0014] Compared with the existing technology, the advantages of an antifreeze road surface flatness detection device are: Through the detection components set up, before testing the flatness of the antifreeze road surface with embossing on the surface, the road surface embossing is first measured and analyzed in detail, and the bumps caused by the embossing are detected and then compensated for, so that accurate flatness data can be obtained in the subsequent measurement process.

[0015] Through the display component, when the road surface is too raised or sunken, it can be recorded in time. When the subsequent operators repair the overly raised or sunken areas, it is convenient to check the quantity, thereby ensuring the comprehensiveness of the road surface repair and ensuring the comfort of drivers and passengers when driving on the road.

[0016] By setting up the tilt mark component, when the antifreeze pavement tilts left or right due to road subsidence and other reasons, the position and length of the road inclination can be marked in time, which is convenient for the operator to carry out subsequent timely repairs and ensure the safety performance of the antifreeze pavement.

[0017] By setting up the third resistor plate and the second conductive block, the wear degree of the road embossing can be automatically detected while detecting the flatness of the antifreeze road surface. When the embossing wear is found to be serious, the operator can be reminded of this situation in time, which is convenient for the operator to carry out subsequent repairs and ensure the friction of the antifreeze road surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of an antifreeze road surface flatness detection device provided by the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of an antifreeze road surface flatness detection device provided by the present invention; Figure 3 It is a schematic diagram of the positional relationship between the third resistor plate and the second conductive block in an antifreeze road surface flatness detection device provided by the present invention; Figure 4 It is a structural schematic diagram of a display component in an antifreeze road surface flatness detection device provided by the present invention; Figure 5 It is a schematic diagram of the internal structure of a vertical cylinder in an antifreeze road surface flatness detection device provided by the present invention; Figure 6 It is a structural schematic diagram of a detection component in an antifreeze road surface flatness detection device provided by the present invention; Figure 7It is a structural schematic diagram of a positioning component in an antifreeze road surface flatness detection device provided by the present invention; Figure 8 It is a schematic diagram of the positional relationship between a roller and a display tube in an antifreeze road surface flatness detection device provided by the present invention; Fig. 9 It is a schematic diagram of the internal structure of a display tube in an antifreeze road surface flatness detection device provided by the present invention; Fig.10 It is a structural schematic diagram of a tilt mark component in an antifreeze road surface flatness detection device provided by the present invention.

[0019] In the figure: 1 detection frame, 2 PLC controller, 3 display control box, 4 detection electric push rod, 5 lifting plate, 6 stop switch, 7 roller, 8 vertical cylinder, 9 vertical rod, 10 fixed ring, 11 detection wheel, 12 auxiliary roller, 13 detection component, 131 detection cover, 132 first resistor plate, 14 second resistor plate, 15 placement plate, 16 first conductive block, 17 positioning component, 171 positioning cylinder, 172 positioning block, 18 rubber ring, 19 wheel distance meter, 20 positioning electric push rod, 21 rough block, 22 reset electric push rod, 23 sliding plate, 24 push electric push rod, 25 push seat, 26 connecting plate, 27 display component, 271 work box, 272 lifting seat, 28 permanent magnet block, 29 electromagnetic block, 30 trigger plate, 31 trigger block, 32 display tube, 33 air intake pipe, 34 electric one-way valve, 35 air intake tube, 36 pressure relief pipe, 37 pressure valve, 38 retaining ring, 39 piston plate, 40 ejection frame, 41 cam, 42 placement ring, 43 piston seat, 44 indicator frame, 45 tilt mark assembly, 451 disc, 452 vertical rod, 46 power block, 47 arc plate, 48 paint box, 49 pump, 50 nozzle, 51 vent pipe, 52 control valve, 53 third resistor plate, 54 second conductive block, 55 elastic rod, 56 trigger switch, 57 one-way pipe, 58 small one-way valve. DETAILED DESCRIPTION

[0020] 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.

[0021] like Figure 1-Figure 10As shown, a frost-resistant road surface flatness detection device includes a detection frame 1 and a PLC controller 2 installed on the inner wall of the lower side of the detection frame 1, a display control box 3 is fixedly connected to the left wall of the detection frame 1, a detection electric push rod 4 is fixedly connected to the upper side wall of the detection frame 1, the moving end of the detection electric push rod 4 passes through the detection frame 1, and is fixedly connected to a lifting plate 5 through a fixed frame, a stop switch 6 is fixedly connected to the inner wall of the detection frame 1, and the stop switch 6 is electrically connected to the detection electric push rod 4 through the PLC controller 2, and two rollers 7 are fixedly connected to the lower side wall of the detection frame 1, and also includes: Three vertical cylinders 8 are arranged on the side walls of the lifting plate 5 and are arranged in sequence from left to right. Vertical rods 9 are inserted into the three vertical cylinders 8. The rod walls of the three vertical rods 9 are fixedly sleeved with fixing rings 10. The same spring is fixedly connected between the fixing rings 10 and the vertical cylinders 8. The vertical rods 9 can slide up and down in the vertical cylinders 8. The lower ends of the left and right vertical rods 9 are fixedly connected with detection wheels 11, and the lower end of the middle vertical rod 9 is fixedly connected with an auxiliary roller 12. Two detection components 13 are both arranged on the upper side wall of the lifting plate 5, and the two detection components 13 are respectively located behind the left and right vertical cylinders 8. The two detection components 13 each include a detection cover 131, and the two detection covers 131 are both fixedly connected to the upper side wall of the lifting plate 5, and the two detection covers 131 are respectively located behind the left and right vertical cylinders 8. The inner wall of the detection cover 131 is fixedly connected with a first resistor plate 132, and is connected with a second resistor plate 14 through a positioning component 17. The ends of the first resistor plate 132 and the second resistor plate 14 that are away from each other are both electrically connected to the PLC controller 2. The rear ends of the two vertical rods 9 on the left and right sides are both fixedly connected with a placement plate 15, and the rear end of the placement plate 15 is fixedly connected with a first conductive block 16, and the first conductive block 16 is electrically connected to an external power supply. Through this component, the flatness of the road surface can be detected; Two display components 27 are connected to the inner walls of the left and right sides of the detection frame 1, respectively, and are used to display the number of times the road surface is too convex or concave. The two display components 27 each include a working box 271, and the two working boxes 271 are fixedly connected to the inner walls of the left and right sides of the detection frame 1, respectively. The upper inner wall of the working box 271 is fixedly connected to a lifting seat 272 through a spring, and the lower side wall of the lifting seat 272 is fixedly connected to a permanent magnet block 28. The lower inner wall of the working box 271 is fixedly connected to an electromagnetic block 29. The first resistor plate 132 and the second resistor plate 14 on the same side are far away from each other. One end of each roller 7 is electrically connected to the electromagnetic block 29, a trigger plate 30 is fixedly connected to the lower side wall of the lifting seat 272, and the trigger plate 30 is electrically connected to the external power supply. A trigger block 31 is inlaid on the inner wall of the working box 271, and the trigger block 31 is electrically connected to the PLC controller 2. The side walls of the fixed parts of the two rollers 7 are fixedly connected to the display tube 32, and the lower side wall of the display tube 32 is fixedly connected to the air intake pipe 33, and the air intake pipe 33 is provided with an electric control one-way valve 34. The lower end of the air intake pipe 33 is fixedly connected to the air intake cylinder 35, and the side wall of the air intake cylinder 35 is connected to the one-way pipe 57, and the one-way pipe 57 is connected to the one-way pipe 57. A small one-way valve 58 is provided in the inlet pipe 57, a pressure relief pipe 36 is connected to the side wall of the air inlet cylinder 35, and a pressure valve 37 is provided in the pressure relief pipe 36, a retaining ring 38 is fixedly connected to the inner wall of the air inlet cylinder 35, and a trigger switch 56 is connected to the lower side wall of the retaining ring 38, a piston plate 39 is fixedly connected to the lower side wall of the retaining ring 38 through a spring, a push frame 40 is fixedly connected to the lower side wall of the piston plate 39, and the lower end of the push frame 40 extends out of the air inlet cylinder 35, a cam 41 matching the push frame 40 is fixedly connected to the end of the rotating shaft of the roller 7, and the inner wall of the display cylinder 32 is fixedly connected There is a placement ring 42, a piston seat 43 is placed above the placement ring 42, an indicator frame 44 is fixedly connected to the upper side wall of the piston seat 43, and the indicator frame 44 is an inverted L-shaped structure. A scale is provided on the surface of the display cylinder 32, and a counterweight is fixedly connected to the lower side wall of the piston seat 43. Through this assembly, when the road surface is too convex or concave, it can be recorded in time, and when the subsequent operator repairs the too convex or concave area, it is convenient to check the quantity, thereby ensuring the comprehensiveness of the road surface repair and ensuring the comfort of the driver and passengers when driving on the road surface; The tilt mark assembly 45 is arranged on the side wall of the detection frame 1, and is used to mark the excessive tilt positions on the left and right sides of the road surface. The tilt mark assembly 45 includes a disc 451 fixedly connected to the right side of the detection frame 1. The center position of the disc 451 is rotatably connected to a vertical rod 452. The lower end of the vertical rod 452 is fixedly connected to a power block 46. The power block 46 is electrically connected to an external power supply. The front side wall of the disc 451 is inlaid with two arc plates 47. The upper ends of the two arc plates 47 are electrically connected to the PLC controller 2 respectively. The left and right sides of the detection frame 1 are fixedly connected to a paint box 48. The front side wall of the paint box 48 is fixedly connected to a pump 49. The liquid inlet end of the pump 49 is connected to the paint box 48, and the liquid outlet end of the pump 49 is fixedly connected to a nozzle 50. Through this assembly, when the antifreeze road surface is tilted to the left or right due to reasons such as road surface settlement, the position and length of the road surface tilt can be marked in time, which is convenient for the operator to carry out subsequent timely repairs, thereby ensuring the safety performance of the antifreeze road surface.

[0022] The positioning assembly 17 includes a positioning cylinder 171 fixedly connected to the rear side of the detection cover 131, a positioning block 172 is slidably arranged inside the positioning cylinder 171, two rubber rings 18 are fixedly sleeved on the outer wall of the positioning block 172, a positioning groove is opened on the rear side wall of the positioning block 172, and a positioning electric push rod 20 is inserted into the positioning groove, a rough block 21 is fixedly connected to the moving end of the positioning electric push rod 20, a reset electric push rod 22 is fixedly connected to the lower side wall of the positioning cylinder 171, and the front side wall of the positioning block 172 is fixedly connected to the reset electric push rod 22. A sliding plate 23 is fixedly connected, and the side walls of the positioning cylinder 171 and the detection cover 131 are provided with sliding openings that match the sliding plate 23. The front end of the sliding plate 23 extends out of the sliding opening and is fixedly connected to the second resistor plate 14. A pushing electric push rod 24 is fixedly connected to the lower side wall of the placement plate 15, and a pushing seat 25 is fixedly connected to the moving end of the pushing electric push rod 24. The lower end of the second resistor plate 14 is fixedly connected to a connecting plate 26 through a bracket. Through this component, the bumps caused by embossing can be compensated.

[0023] A vent pipe 51 is fixedly connected to the side wall of the display tube 32 , and a control valve 52 is provided in the vent pipe 51 to discharge the gas inside the display tube 32 .

[0024] The left and right side rod walls of the middle vertical rod 9 are fixedly connected with third resistor plates 53 through brackets, and the lower ends of the two third resistor plates 53 are electrically connected to the PLC controller 2. The side walls on the opposite sides of the two vertical rods 9 on the left and right sides are fixedly connected with second conductive blocks 54 through brackets, and the second conductive blocks 54 are electrically connected to an external power supply. While detecting the flatness of the anti-freeze road surface, the wear degree of the road surface embossing can also be automatically detected. When the embossing wear is found to be serious, the operator can be reminded of this situation in time, which is convenient for the operator to carry out subsequent repairs and ensures the friction of the anti-freeze road surface.

[0025] The lower side wall of the lifting plate 5 is fixedly connected with an elastic rod 55 , and the lower end of the elastic rod 55 is fixedly connected with a wheeled distance meter 19 , which can record the moving distance of the detection device.

[0026] The operating principle of the present invention is now described as follows: the traction vehicle is connected to the detection frame 1 through the traction mechanism (a traction frame is provided on the rear side of the detection frame 1), and then an electrical signal is transmitted to the PLC controller 2 through the display control box 3. After receiving the electrical signal, the PLC controller 2 first controls the detection electric push rod 4 to work, and the detection electric push rod 4 drives the lifting plate 5 to move downward. In the process of moving downward, the lifting plate 5 will drive the vertical cylinder 8, the detection wheel 11, the auxiliary roller 12, and the wheeled distance meter 19 to move downward together, and when the detection wheel 11 and the auxiliary roller 12 come into contact with the road surface, they will stop moving, and the vertical cylinder 8 will still move downward under the drive of the lifting plate 5, and the auxiliary roller 12 and the detection wheel 11 will push the vertical rod 9 upward, so that the vertical rod 9 slides relatively upward in the vertical cylinder 8. When the lifting plate 5 is pressed downward to the stop switch 6, the stop switch 6 will control the detection electric push rod 4 to stop moving through the PLC controller 2. At this time, the left and right vertical rods 9 will drive the first conductive block 16 to be between the first resistor plate 132 and the second resistor plate 14 through the placement plate 15, and will not contact the first resistor plate 132 and the second resistor plate 14. Then the operator controls the push electric push rod 24 to work through the display control box 3, so that the push electric push rod 24 drives the push seat 25 to move downward, so that the push seat 25 contacts the upper surface of the connecting plate 26. Then the operator selects a flat road surface on the road surface to be tested, and uses a probe or other measuring tool to test whether the embossing of the road section is within the designed depth (the depth of the road surface embossing is usually 4-5mm); Then, the detection device is driven to move by the traction vehicle, and the traction vehicle will drive the detection wheel 11 to move on the selected road surface, and when the detection wheel 11 passes through the embossing, it will produce an up and down bump, and because the diameter of the detection wheel 11 is smaller than the diameter of the roller 7, the bumping degree of the roller 7 will be smaller than the bumping degree of the detection wheel 11 (the roller 7 has a larger diameter, and it is easier to cross over when encountering a raised part of the road surface embossing, because the wheel radius is large, and the distance between the highest point and the lowest point on its circumference is long. When encountering an embossed bulge of a certain height, the roller 7 can use its own geometric shape advantage to make the vehicle pass relatively smoothly, and it is not as easy as the detection wheel 11 to directly collide with the raised part and produce violent vibration). Therefore, the detection frame 1 and the lifting plate 5 do not bump much, while the detection wheel 11 bumps more. Therefore, the detection wheel 11 pushes the connecting plate 26 downward through the vertical rod 9, the placement plate 15, the push electric push rod 24 and the push seat 25. The connecting plate 26 drives the positioning block 172 to slide relatively downward in the positioning cylinder 171 through the sliding plate 23. The positioning block 172 can maintain motionless in the positioning cylinder 171 when it is not subjected to the squeezing force transmitted by the push seat 25 through the friction force between the rubber ring 18 and the positioning cylinder 171, so that the embossing on the anti-freezing road surface can be compensated. In addition, before the detection, the road surface is cleaned in advance to remove impurities on the road surface to ensure the detection accuracy of the road surface. When the flatness of the road surface is formally tested later, the position of the test frame 1 is adjusted so that the two test wheels 11 are respectively located in the areas on the road surface where automobile tires often travel (ruts), and then the device is pulled and tested by a towing vehicle. Referring to the above principle, when there is a bulge in the test area, the test wheel 11 will drive the first conductive block 16 to move upward through the vertical rod 9, so that the first conductive block 16 contacts the first resistor plate 132, and the upper end of the first resistor plate 132 is electrically connected to the PLC controller 2, and the first conductive block 16 is electrically connected to the external power supply. When the first conductive block 16 contacts the first resistor plate 132, an electrical signal will be transmitted to the PLC controller 2, and the greater the degree of bulge, the farther the first conductive block 16 moves upward, and the closer the first conductive block 16 will contact the position of the first resistor plate 132 close to the upper end. When the external voltage remains unchanged, the larger the current signal transmitted to the circuit of the PLC controller 2, the current signal transmitted to the circuit of the PLC controller 2 is converted, and the data is displayed. The display screen on the control box 3 is displayed, and the wheel rangefinder 19 synchronously displays the distance information on the display screen, so that the corresponding protrusion can be quickly found according to the distance (the current signal is converted into a digital signal by the analog input module and input into the PLC controller 2, the PLC controller 2 reads the digital signal and performs logical judgment and data processing according to the correspondence between the pre-calibrated current intensity and the degree of road surface protrusion, and then establishes a connection with the display screen through a set RS-232, RS-485 or Ethernet communication method, writes a display control instruction according to the communication protocol of the display screen, and sends the text or numerical information corresponding to the road surface protrusion to the specified position of the display screen for display). Similarly, when the detection wheel 11 encounters a larger depression, the depression will cause the detection wheel 11 to move downward a longer distance, and the detection wheel 11 will drive the first conductive block 16 to move downward and contact the second resistor plate 14 (the distance the first conductive block 16 moves downward will exceed the embossing compensation distance), so that the depressed area is displayed on the display screen; Since the ends of the first resistor plate 132 and the second resistor plate 14 that are away from each other are electrically connected to the electromagnetic block 29, after the first conductive block 16 contacts the first resistor plate 132 and the second resistor plate 14, the external current will be transmitted to the electromagnetic block 29 through the first resistor plate 132 or the second resistor plate 14, so that the electromagnetic block 29 is energized to generate magnetic force. When the height of the protrusion reaches 50 mm, or the depth of the depression reaches 30 mm, the first conductive block 16 will contact the position near the upper end of the first resistor plate 132, or the position near the lower end of the second resistor plate 14, so that The resistance connected to the circuit of the electromagnetic block 29 becomes smaller. When the external voltage remains unchanged, the current transmitted to the circuit of the electromagnetic block 29 is larger, and the electromagnetic block 29 will generate a larger magnetic attraction. The electromagnetic block 29 will attract the permanent magnet block 28, the lifting seat 272 and the trigger plate 30 to move downward to a farther position, so that the trigger plate 30 and the trigger block 31 are in contact. The trigger plate 30 is electrically connected to the external power supply, and the trigger block 31 is electrically connected to the PLC controller 2. After receiving the electrical signal from the trigger block 31, the PLC controller 2 will control the electric control check valve 34 to open. As the roller 7 rotates, The wheel shaft part drives the cam 41 to rotate together. When the raised part of the cam 41 rotates to the upper part, it presses the push frame 40 upward, and the push frame 40 drives the piston plate 39 to move upward. The piston plate 39 squeezes the air above, so that the air above enters the display tube 32 through the intake pipe 33 and the electric control one-way valve 34, so that the air pressure below the piston seat 43 increases, and the piston seat 43 drives the indicator frame 44 to move upward by a scale position (the surface of the display tube 32 is provided with a scale, and a scale indicates that there is an area where the road surface is too raised or sunken), and when the active After the plug seat 43 moves upward to the highest position, it will squeeze the trigger switch 56, and the trigger switch 56 will control the electric control one-way valve 34 to close. When the raised part of the cam 41 separates from the push frame 40, under the action of the spring force, the piston plate 39 and the push frame 40 move downward to the bottom together, and the external gas will enter the air intake cylinder 35 through the one-way pipe 57 and the small one-way valve 58. When the electric control one-way valve 34 is not opened, when the raised part of the cam 41 pushes the piston plate 39 upward, the gas inside the air intake cylinder 35 will be discharged through the pressure relief pipe 36 and the pressure valve 37; When the detection device moves to a road surface that is tilted left or right (due to road subsidence and other reasons, one side of the road surface is high and the other side is low), the detection frame 1 will drive the disc 451 and the arc plates 47 on both sides to rotate left or right at a certain angle at the same time, and the power block 46 and the vertical rod 452 are always kept in a vertical state under the action of gravity, so that the power block 46 is in contact with the arc plate 47 on one side, the power block 46 is electrically connected to the external power supply, and the arc plate 47 is in contact with the pump 49. Therefore, after the power block 46 and the arc plate 47 are in contact, the pump 49 will be operated, and the pump 49 will spray the paint inside the paint box 48 through the nozzle 50, so as to mark the inclined section of the road surface (the paint can be cleaned by the operator later), which is convenient for the operator to carry out subsequent repairs in a timely manner, thereby ensuring the safety performance of the antifreeze road surface; When the detection wheel 11 travels to an area where the embossed wear is severe (usually the rutting mark), the detection wheel 11 will drive the second conductive block 54 to move downward through the corresponding vertical rod 9, while the auxiliary roller 12 contacts the middle of the road surface (the middle of the road surface has less wear due to less contact time with the wheel). The auxiliary wheel will drive the third resistor plate 53 to remain stationary through the corresponding vertical rod 9, so that the second conductive block 54 contacts the third resistor plate 53, the second conductive block 54 is electrically connected to the external power supply, and the lower end of the third resistor plate 53 is electrically connected to the PLC controller 2. Referring to the above principle, the area where the embossed wear is can be displayed on the display screen on the surface of the display control box 3, which is convenient for the operator to carry out subsequent repairs, thereby ensuring the friction of the antifreeze road surface and improving the driving safety on the antifreeze road surface.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A frost-resistant road surface flatness detection device, comprising a detection frame (1) and a PLC controller (2) mounted on the inner wall of the lower side of the detection frame (1), the left side wall of the detection frame (1) is fixedly connected to a display control box (3), the upper side wall of the detection frame (1) is fixedly connected to a detection electric push rod (4), the moving end of the detection electric push rod (4) passes through the detection frame (1) and is fixedly connected to a lifting plate (5) through a fixed frame, the inner wall of the detection frame (1) is fixedly connected to a stop switch (6), the stop switch (6) is electrically connected to the detection electric push rod (4) through the PLC controller (2), and the lower side wall of the detection frame (1) is fixedly connected to two rollers (7), characterized in that: Also includes: Three vertical cylinders (8) are arranged on the side walls of the lifting plate (5) and are arranged in sequence from left to right. A vertical rod (9) is inserted into each of the three vertical cylinders (8). A fixing ring (10) is fixedly sleeved on the rod wall of each of the three vertical rods (9). A same spring is fixedly connected between the fixing ring (10) and the vertical cylinder (8). The vertical rod (9) can slide up and down in the vertical cylinder (8). The lower ends of the vertical rods (9) on the left and right sides are fixedly connected to detection wheels (11), and the lower end of the vertical rod (9) in the middle is fixedly connected to an auxiliary roller (12); Two detection assemblies (13), both disposed on the upper side wall of the lifting plate (5), and the two detection assemblies (13) are respectively located behind the left and right vertical cylinders (8); Two display components (27), respectively connected to the inner walls on the left and right sides of the detection frame (1), for displaying the number of times the road surface is too convex or concave; The tilt mark assembly (45) is arranged on the side wall of the detection frame (1) and is used to mark the excessively tilted positions on the left and right sides of the road surface.

2. The antifreeze road surface flatness detection device according to claim 1, characterized in that: The two detection components (13) each comprise a detection cover (131), the two detection covers (131) are fixedly connected to the upper side wall of the lifting plate (5), the two detection covers (131) are respectively located behind the left and right vertical cylinders (8), the inner wall of the detection cover (131) is fixedly connected to a first resistor plate (132), and is connected to a second resistor plate (14) via a positioning component (17), the ends of the first resistor plate (132) and the second resistor plate (14) that are away from each other are both electrically connected to a PLC controller (2), the rear ends of the two vertical rods (9) located on the left and right sides are both fixedly connected to a placement plate (15), the rear ends of the placement plate (15) are fixedly connected to a first conductive block (16), and the first conductive block (16) is electrically connected to an external power supply.

3. The antifreeze road surface flatness detection device according to claim 2, characterized in that: The positioning assembly (17) comprises a positioning cylinder (171) fixedly connected to the rear side of the detection cover (131); a positioning block (172) is slidably arranged inside the positioning cylinder (171); two rubber rings (18) are fixedly sleeved on the outer wall of the positioning block (172); a positioning groove is formed on the rear side wall of the positioning block (172); a positioning electric push rod (20) is inserted into the positioning groove; a rough block (21) is fixedly connected to the movable end of the positioning electric push rod (20); a reset electric push rod (22) is fixedly connected to the lower side wall of the positioning cylinder (171); The front side wall of the positioning block (172) is fixedly connected to a sliding plate (23); the side walls of the positioning cylinder (171) and the detection cover (131) are both provided with sliding openings that match the sliding plate (23); the front end of the sliding plate (23) extends out of the sliding opening and is fixedly connected to the second resistor plate (14); the lower side wall of the placement plate (15) is fixedly connected to a push electric push rod (24); the movable end of the push electric push rod (24) is fixedly connected to a push seat (25); and the lower end of the second resistor plate (14) is fixedly connected to a connecting plate (26) via a bracket.

4. The antifreeze road surface flatness detection device according to claim 3, characterized in that: The two display assemblies (27) each comprise a working box (271), the two working boxes (271) being fixedly connected to the inner walls of the left and right sides of the detection frame (1), respectively; the upper inner wall of the working box (271) is fixedly connected to a lifting seat (272) via a spring; the lower wall of the lifting seat (272) is fixedly connected to a permanent magnet block (28); the lower inner wall of the working box (271) is fixedly connected to an electromagnetic block (29); and the ends of the first resistor plate (132) and the second resistor plate (14) located on the same side and away from each other are both electrically connected to the electromagnetic block (29). The lower side wall of the lifting seat (272) is fixedly connected with a trigger plate (30), and the trigger plate (30) is electrically connected to an external power source. The inner wall of the working box (271) is inlaid with a trigger block (31), and the trigger block (31) is electrically connected to a PLC controller (2). The side walls of the two roller (7) fixing parts are fixedly connected with display tubes (32). The lower side wall of the display tube (32) is fixedly connected with an air intake pipe (33), and an electric-controlled one-way valve (34) is provided in the air intake pipe (33). The lower end of the air intake pipe (33) is fixedly connected with an air intake valve (34). The air cylinder (35) is connected to a one-way pipe (57) on the side wall of the air cylinder (35), and a small one-way valve (58) is arranged in the one-way pipe (57). The side wall of the air cylinder (35) is connected to a pressure relief pipe (36), and a pressure valve (37) is arranged in the pressure relief pipe (36). The inner wall of the air cylinder (35) is fixedly connected to a retaining ring (38), and the lower side wall of the retaining ring (38) is connected to a trigger switch (56). The lower side wall of the retaining ring (38) is fixedly connected to a piston plate (39) via a spring, and the lower side wall of the piston plate (39) is fixedly connected to a push frame (40). ), the lower end of the push frame (40) extends out of the air intake cylinder (35), the end of the rotating shaft of the roller (7) is fixedly connected to a cam (41) that matches the push frame (40), the inner wall of the display tube (32) is fixedly connected to a placement ring (42), a piston seat (43) is placed above the placement ring (42), the upper side wall of the piston seat (43) is fixedly connected to an indicator frame (44), the indicator frame (44) is an inverted L-shaped structure, a scale is provided on the surface of the display tube (32), and a counterweight is fixedly connected to the lower side wall of the piston seat (43).

5. The antifreeze road surface flatness detection device according to claim 1, characterized in that: The tilt mark assembly (45) comprises a disc (451) fixedly connected to the right side of the detection frame (1); a vertical rod (452) is rotatably connected to the center of the disc (451); a power block (46) is fixedly connected to the lower end of the vertical rod (452); the power block (46) is electrically connected to an external power supply; two arc plates (47) are inlaid on the front side wall of the disc (451); the upper ends of the two arc plates (47) are electrically connected to a PLC controller (2) respectively; a paint box (48) is fixedly connected to the left and right sides of the detection frame (1); a pump (49) is fixedly connected to the front side wall of the paint box (48); a liquid inlet end of the pump (49) is connected to the paint box (48); and a spray head (50) is fixedly connected to the liquid outlet end of the pump (49).

6. The antifreeze road surface flatness detection device according to claim 4, characterized in that: The side wall of the display tube (32) is fixedly connected to a deflation pipe (51), and a control valve (52) is provided in the deflation pipe (51).

7. The antifreeze road surface flatness detection device according to claim 1, characterized in that: The left and right side walls of the vertical rod (9) located in the middle are both fixedly connected to third resistor plates (53) via brackets, and the lower ends of the two third resistor plates (53) are both electrically connected to the PLC controller (2). The side walls of the two vertical rods (9) located on the left and right sides on the opposite sides are both fixedly connected to second conductive blocks (54) via brackets, and the second conductive blocks (54) are electrically connected to an external power supply.

8. The antifreeze road surface flatness detection device according to claim 1, characterized in that: The lower side wall of the lifting plate (5) is fixedly connected to an elastic rod (55), and the lower end of the elastic rod (55) is fixedly connected to a wheeled distance meter (19).

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