An anti-freezing road surface flatness detection device

Abstract

The present invention belongs to the technical field of road surface detection, and in particular relates to an anti-freezing road surface flatness detection device, which includes a detection frame and a PLC controller installed on the inner wall of the lower side of the detection frame. A display control box is fixedly connected to the left side wall of the detection frame. Before detecting the flatness of the anti-freezing road surface with embossments on the surface, the present invention first measures and analyzes the road surface embossments in detail, detects the degree of bumps caused by the embossments, and then compensates for the bumps caused by the embossments, so that accurate flatness data can be obtained during the subsequent measurement process. At the same time, when detecting the flatness of the anti-freezing road surface, the wear degree of the road surface embossments can also be automatically detected. When it is detected that the embossments are severely worn, the operator can be reminded of this situation in time, which is convenient for the operator to perform repairs later and ensures the friction of the anti-freezing road surface.

Description

Technical Field

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

[0002] Regular road surface flatness detection can provide dynamic information on the road surface condition. By comparing and analyzing the detection data at different times, the change trend of the road surface flatness can be determined. For example, a road surface flatness detection device proposed in the patent publication number CN118583114B.

[0003] In the operation of road surface flatness detection, existing conventional detection devices need to make the detection wheels closely fit the road surface and rely on a towing vehicle to drive the detection device to displace on the road surface to achieve the detection process of the road surface flatness. However, due to special anti-slip requirements for anti-freezing roads, embossed patterns will be constructed on the road surface after construction and completion. When the detection wheels roll on such embossed patterns, additional vibration effects will inevitably be caused, and the detection instrument is likely to misjudge such conventional bumpy phenomena induced by the texture as the unevenness of the road surface itself, thereby resulting in a deviation of the measured data from the actual flatness, and ultimately causing the measurement result to be unable to accurately present the true flatness level of the road surface.

[0004] Therefore, an anti-freezing 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 an anti-freezing road surface flatness detection device for the above problems.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions: An anti-freezing road surface flatness detection device includes a detection frame and a PLC controller installed on the inner wall of the lower side of the detection frame. A display control box is fixedly connected to the left side wall of the detection frame, and a detection electric push rod is fixedly connected to the upper side wall of the detection frame. The moving end of the detection electric push rod passes through the detection frame and is fixedly connected to a lifting plate through a fixing frame. A stop switch is fixedly connected to the inner wall of the detection frame, and the stop switch is electrically connected to the detection electric push rod through the PLC controller. Two rollers are fixedly connected to the lower side wall of the detection frame, and further includes:

[0007] Three vertical cylinders are arranged on the side wall of the lifting plate and are arranged in left, middle and right order. Vertical rods are inserted into all three vertical cylinders. Fixed rings are fixedly sleeved on the rod walls of all three vertical rods. The same spring is fixedly connected between the fixed rings and the vertical cylinders. The vertical rods can slide up and down in the vertical cylinders. Detection wheels are fixedly connected to the lower ends of the left and right vertical rods, and an auxiliary roller is fixedly connected to the lower end of the middle vertical rod;

[0008] 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;

[0009] Two display components are respectively connected to the left and right inner walls of the detection frame and are used to display the number of times the road surface is too convex or concave;

[0010] The inclined marking component is arranged on the side wall of the detection frame and is used to mark the positions where the left and right sides of the road surface are overly inclined.

[0011] Preferably, both of the two detection components include detection covers. The two detection covers are both fixedly connected to the upper side wall of the lifting plate. The two detection covers are respectively located behind the left and right vertical cylinders. A first resistance plate is fixedly connected to the inner wall of the detection cover, and a second resistance plate is connected through a positioning component. The mutually remote ends of the first resistance plate and the second resistance plate are both electrically connected to the PLC controller. First conductive blocks are fixedly connected to the rear ends of the left and right vertical rods. The rear end of the placement plate is fixedly connected to the first conductive block, and the first conductive block is electrically connected to an external power source.

[0012] Preferably, the positioning component includes a positioning cylinder fixedly connected to the rear side of the detection cover. A positioning block is slidably arranged inside the positioning cylinder. Two rubber rings are fixedly sleeved on the outer wall of the positioning block. A positioning groove is formed on the rear side wall of the positioning block, and a positioning electric push rod is inserted into the positioning groove. The moving end of the positioning electric push rod is fixedly connected to a rough block. 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. Sliding ports matching the sliding plate are formed on the side walls of the positioning cylinder and the detection cover. The front end of the sliding plate extends out of the sliding port and is fixedly connected to the second resistance plate. A top push electric push rod is fixedly connected to the lower side wall of the placement plate. The moving end of the top push electric push rod is fixedly connected to a top push seat. The lower end of the second resistance plate is fixedly connected to a connecting plate through a bracket.

[0013] Preferably, both of the display components include working boxes, and the two working boxes are respectively fixedly connected to the left and right inner walls of the detection rack. The upper inner wall of the working box is fixedly connected with a lifting seat through a spring. The lower side wall of the lifting seat is fixedly connected with a permanent magnet block. The lower inner wall of the working box is fixedly connected with an electromagnet block. One end of the first resistor plate and the second resistor plate on the same side, which are away from each other, are both electrically connected to the electromagnet block. The lower side wall of the lifting seat is fixedly connected with a trigger plate, and the trigger plate is electrically connected to an external power supply. A trigger block is embedded in the inner wall of the working box, and the trigger block is electrically connected to a PLC controller. The side walls of both of the roller fixing parts are fixedly connected with display cylinders. An air inlet pipe is fixedly communicated with the lower side wall of the display cylinder. An electronically controlled one-way valve is arranged in the air inlet pipe. The lower end of the air inlet pipe is fixedly communicated with an air inlet cylinder, and a one-way pipe is communicated with the side wall of the air inlet cylinder. A small one-way valve is arranged in the one-way pipe. A pressure relief pipe is communicated with the side wall of the air inlet cylinder, and a pressure valve is arranged in the pressure relief pipe. A retaining ring is fixedly connected to the inner wall of the air inlet 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 with a piston plate through a spring. The lower side wall of the piston plate is fixedly connected with a pushing frame, and the lower end of the pushing frame extends out of the air inlet cylinder. The end of the roller rotating shaft is fixedly connected with a cam that matches the pushing 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 indicating frame is fixedly connected to the upper side wall of the piston seat. The indicating frame is of an inverted L-shaped structure. A scale is arranged on the surface of the display cylinder. A counterweight block is fixedly connected to the lower side wall of the piston seat.

[0014] Preferably, the inclination marking component includes a disc fixedly connected to the right side of the detection rack. A vertical rod is rotatably connected to the central position of the disc. A power-on block is fixedly connected to the lower end of the vertical rod, and the power-on block is electrically connected to an external power supply. Two arc-shaped plates are embedded in the front side wall of the disc, and the upper ends of the two arc-shaped plates are respectively electrically connected to the PLC controller. Paint boxes are fixedly connected to both the left and right sides of the detection rack. A pump is fixedly connected to the front side wall of the paint box. The liquid inlet end of the pump is communicated with the paint box, and the liquid outlet end of the pump is fixedly communicated with a spray head.

[0015] Preferably, an air release pipe is fixedly communicated with the side wall of the display cylinder, and a control valve is arranged in the air release pipe.

[0016] Preferably, third resistor plates are fixedly connected to the left and right side walls of the middle vertical rod through brackets. The lower ends of the two third resistor plates are both electrically connected to the PLC controller. Second conductive blocks are fixedly connected to the side walls of the left and right vertical rods on the opposite sides through brackets, and the second conductive blocks are electrically connected to an external power supply.

[0017] Preferably, an elastic rod is fixedly connected to the lower side wall of the lifting plate, and a wheeled rangefinder is fixedly connected to the lower end of the elastic rod.

[0018] Compared with the existing technology, an anti-freezing road surface flatness detection device has the following advantages:

[0019] Through the set detection component, before detecting the flatness of the anti-freezing road surface with embossments on the surface, the road surface embossments are first measured and analyzed in detail. By detecting the degree of bumps caused by the embossments, and then compensating for the bumps caused by the embossments, accurate flatness data can be obtained in the subsequent measurement process.

[0020] Through the set display component, when the road surface is too convex or concave, it can be recorded in time. When the subsequent operator repairs the too convex or concave area, it is convenient to check the quantity, thus ensuring the comprehensiveness of the road surface repair and guaranteeing the comfort of drivers and passengers when driving on the road surface.

[0021] Through the set inclination marking component, when the anti-freezing road surface is tilted left and right due to road surface settlement or other reasons, the position and length of the road surface tilt can be marked in time, which is convenient for the operator to repair in time later and guarantees the safety performance of the anti-freezing road surface.

[0022] Through the set third resistor plate and the second conductive block, while detecting the flatness of the anti-freezing road surface, the wear degree of the road surface embossments can also be automatically detected. When it is detected that the embossments are worn more seriously, the operator can be reminded of this situation in time, which is convenient for the operator to repair later and guarantees the friction of the anti-freezing road surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 FIG. 1 is a schematic structural diagram of an anti-freezing road surface flatness detection device provided by the present invention;

[0024] Figure 2 FIG. 2 is a three-dimensional structural diagram of an anti-freezing road surface flatness detection device provided by the present invention;

[0025] Figure 3 FIG. 3 is a schematic diagram of the positional relationship between the third resistor plate and the second conductive block in an anti-freezing road surface flatness detection device provided by the present invention;

[0026] Figure 4 FIG. 4 is a schematic structural diagram of the display component in an anti-freezing road surface flatness detection device provided by the present invention;

[0027] Figure 5 FIG. 5 is a schematic diagram of the internal structure of the vertical cylinder in an anti-freezing road surface flatness detection device provided by the present invention;

[0028] Figure 6It is a schematic structural diagram of a detection component in an anti-freezing road surface flatness detection device provided by the present invention;

[0029] Figure 7 It is a schematic structural diagram of a positioning component in an anti-freezing road surface flatness detection device provided by the present invention;

[0030] Figure 8 It is a schematic diagram of the positional relationship between a roller and a display cylinder in an anti-freezing road surface flatness detection device provided by the present invention;

[0031] Figure 9 It is a schematic internal structure diagram of a display cylinder in an anti-freezing road surface flatness detection device provided by the present invention;

[0032] Figure 10 It is a schematic structural diagram of an inclination marking component in an anti-freezing road surface flatness detection device provided by the present invention.

[0033] 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 fixing ring, 11 detection wheel, 12 auxiliary roller, 13 detection component, 131 detection cover, 132 first resistance plate, 14 second resistance plate, 15 placement plate, 16 first conductive block, 17 positioning component, 171 positioning cylinder, 172 positioning block, 18 rubber ring, 19 wheel type distance measuring instrument, 20 positioning electric push rod, 21 rough block, 22 reset electric push rod, 23 sliding plate, 24 top push electric push rod, 25 top push seat, 26 connecting plate, 27 display component, 271 working box, 272 lifting seat, 28 permanent magnet block, 29 electromagnetic block, 30 trigger plate, 31 trigger block, 32 display cylinder, 33 air inlet pipe, 34 electrically controlled one-way valve, 35 air inlet cylinder, 36 pressure relief pipe, 37 pressure valve, 38 retaining ring, 39 piston plate, 40 top push frame, 41 cam, 42 placement ring, 43 piston seat, 44 indicating frame, 45 inclination marking component, 451 disc, 452 vertical rod, 46 energized block, 47 arc plate, 48 pigment box, 49 pump, 50 nozzle, 51 air discharge pipe, 52 control valve, 53 third resistance plate, 54 second conductive block, 55 elastic rod, 56 trigger switch, 57 one-way pipe, 58 small one-way valve. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0035] Such as Figures 1-10As shown in the figure, an anti-freezing 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 side 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 fixing frame. A stop switch 6 is fixedly connected to the inner wall of the detection frame 1. The stop switch 6 is electrically connected to the detection electric push rod 4 through the PLC controller 2. Two rollers 7 are fixedly connected to the lower side wall of the detection frame 1. It also includes:

[0036] Three vertical cylinders 8 are arranged on the side wall of the lifting plate 5 and are arranged in the left, middle and right in sequence. Vertical rods 9 are inserted into all three vertical cylinders 8. Fixed rings 10 are fixedly sleeved on the rod walls of the three vertical rods 9. The same spring is fixedly connected between the fixed ring 10 and the vertical cylinder 8. The vertical rod 9 can slide up and down in the vertical cylinder 8. Detection wheels 11 are fixedly connected to the lower ends of the left and right vertical rods 9. An auxiliary roller 12 is fixedly connected to the lower end of the middle vertical rod 9;

[0037] 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 both include detection covers 131. The two detection covers 131 are both 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. A first resistance plate 132 is fixedly connected to the inner wall of the detection cover 131, and a second resistance plate 14 is connected through a positioning component 17. One ends of the first resistance plate 132 and the second resistance plate 14 that are far away from each other are both electrically connected to the PLC controller 2. Placing plates 15 are fixedly connected to the rear ends of the left and right vertical rods 9. A first conductive block 16 is fixedly connected to the rear end of the placing plate 15. 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;

[0038] Two display components 27 are 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 two display components 27 both include working boxes 271. The two working boxes 271 are respectively fixedly connected to the inner walls on the left and right sides of the detection frame 1. The upper inner wall of the working box 271 is fixedly connected with a lifting seat 272 through a spring. The lower side wall of the lifting seat 272 is fixedly connected with a permanent magnet block 28. The lower inner wall of the working box 271 is fixedly connected with an electromagnet block 29. One end of the first resistor plate 132 and the second resistor plate 14 that are far away from each other on the same side are both electrically connected to the electromagnet block 29. The lower side wall of the lifting seat 272 is fixedly connected with a trigger plate 30. The trigger plate 30 is electrically connected to an external power supply. A trigger block 31 is embedded in the inner wall of the working box 271. The trigger block 31 is electrically connected to the PLC controller 2. The side walls of the fixing parts of the two rollers 7 are both fixedly connected with display cylinders 32. The lower side wall of the display cylinder 32 is fixedly communicated with an air inlet pipe 33. An electronically controlled one-way valve 34 is arranged in the air inlet pipe 33. The lower end of the air inlet pipe 33 is fixedly communicated with an air inlet cylinder 35. And a one-way pipe 57 is communicated with the side wall of the air inlet cylinder 35. A small one-way valve 58 is arranged in the one-way pipe 57. A pressure relief pipe 36 is communicated with the side wall of the air inlet cylinder 35. And a pressure valve 37 is arranged 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 pushing frame 40 is fixedly connected to the lower side wall of the piston plate 39. The lower end of the pushing frame 40 extends out of the air inlet cylinder 35. The end of the rotating shaft of the roller 7 is fixedly connected with a cam 41 that matches the pushing frame 40. A placing ring 42 is fixedly connected to the inner wall of the display cylinder 32. A piston seat 43 is placed above the placing ring 42. An indicating frame 44 is fixedly connected to the upper side wall of the piston seat 43. The indicating frame 44 is in an inverted L-shaped structure. A scale table is arranged on the surface of the display cylinder 32. A counterweight block is fixedly connected to the lower side wall of the piston seat 43. Through this component, when the road surface is too convex or concave, it can be recorded in time. When the subsequent operator repairs the too convex or concave area, it is convenient to check the quantity, thus ensuring the comprehensiveness of the road surface repair and guaranteeing the comfort of drivers and passengers when driving on the road surface;

[0039] The inclination marking component 45 is arranged on the side wall of the detection frame 1 and is used to mark the positions where the left and right sides of the road surface are overly inclined. The inclination marking component 45 includes a disc 451 fixedly connected to the right side of the detection frame 1. A vertical rod 452 is rotatably connected to the central position of the disc 451. An energized block 46 is fixedly connected to the lower end of the vertical rod 452. The energized block 46 is electrically connected to an external power source. Two arc-shaped plates 47 are inlaid on the front side wall of the disc 451. The upper ends of the two arc-shaped plates 47 are respectively electrically connected to the PLC controller 2. Paint boxes 48 are fixedly connected to both 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. The liquid inlet end of the pump 49 is communicated with the paint box 48. The liquid outlet end of the pump 49 is fixedly communicated with a spray head 50. Through this component, when the anti-freezing road surface is inclined left and right due to reasons such as road surface settlement, the inclined positions and lengths of the road surface can be marked in time, facilitating subsequent timely repair by the operator and ensuring the safety performance of the anti-freezing road surface.

[0040] The positioning component 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 formed on the rear side wall of the positioning block 172, and a positioning electric push rod 20 is inserted into the positioning groove. The moving end of the positioning electric push rod 20 is fixedly connected to a rough block 21. A reset electric push rod 22 is fixedly connected to the lower side wall of the positioning cylinder 171. A sliding plate 23 is fixedly connected to the front side wall of the positioning block 172. Sliding openings matching the sliding plate 23 are formed on the side walls of the positioning cylinder 171 and the detection cover 131. The front end of the sliding plate 23 extends out of the sliding opening and is fixedly connected to the second resistance plate 14. A top push electric push rod 24 is fixedly connected to the lower side wall of the placement plate 15. The moving end of the top push electric push rod 24 is fixedly connected to a top push seat 25. A connecting plate 26 is fixedly connected to the lower end of the second resistance plate 14 through a bracket. Through this component, the bumps caused by the embossing can be compensated.

[0041] An air release pipe 51 is fixedly communicated with the side wall of the display cylinder 32, and a control valve 52 is arranged inside the air release pipe 51, which can discharge the gas inside the display cylinder 32.

[0042] Third resistance plates 53 are fixedly connected to the rod walls on both the left and right sides of the middle vertical rod 9 through brackets. The lower ends of the two third resistance plates 53 are both electrically connected to the PLC controller 2. Second conductive blocks 54 are fixedly connected to the side walls on the opposite sides of the left and right vertical rods 9 through brackets. The second conductive blocks 54 are electrically connected to an external power source. While detecting the flatness of the anti-freezing road surface, the wear degree of the road surface embossing can also be automatically detected. When it is detected that the embossing wear is relatively serious, the operator can be reminded of this situation in time, facilitating subsequent repair by the operator and ensuring the friction of the anti-freezing road surface.

[0043] An elastic rod 55 is fixedly connected to the lower side wall of the lifting plate 5, and a wheeled rangefinder 19 is fixedly connected to the lower end of the elastic rod 55, which can record the moving distance of the detection device.

[0044] The operating principle of the present invention will be described as follows: The towing vehicle connects to the detection frame 1 through the towing mechanism (a towing frame is provided at the rear of the detection frame 1), and then a signal is sent to the PLC controller 2 through the display control box 3. After receiving the 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. During the downward movement of the lifting plate 5, the vertical cylinder 8, the detection wheel 11, the auxiliary roller 12, and the wheeled rangefinder 19 will move downward together. And when the detection wheel 11 and the auxiliary roller 12 contact the road surface, they will stop moving, while 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, causing the vertical rod 9 to slide upward relative to the vertical cylinder 8. When the lifting plate 5 presses down 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 resistance plate 132 and the second resistance plate 14 through the placement plate 15, and will not contact the first resistance plate 132 and the second resistance 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, making the push seat 25 contact the upper surface of the connecting plate 26. Then the operator selects a flat section of the road surface to be tested, and tests that the embossing of this section is within the designed depth through measuring tools such as probes (the depth of the road surface embossing is usually 4-5 mm);

[0045] Next, the detection device is driven to move by a towing vehicle. The towing vehicle will drive the detection wheel 11 to move on the selected road surface. And when the detection wheel 11 passes over the embossing, an up-and-down bump will occur. Since the diameter of the detection wheel 11 is smaller than that of the roller 7, the bump degree of the roller 7 will be smaller than that of the detection wheel 11 (the diameter of the roller 7 is larger, and when encountering the raised part of the road embossing, it is easier to cross over. Because the radius of the wheel is large, the distance between the highest point and the lowest point on its circumference is long. When encountering an embossing bulge of a certain height, the roller 7 can utilize its own geometric shape advantage to make the vehicle pass relatively smoothly, rather than being as likely to directly collide with the raised part like the detection wheel 11 and generate a violent vibration). Therefore, the amplitudes of the bumps of the detection frame 1 and the lifting plate 5 are not large, while the amplitude of the bump of the detection wheel 11 is relatively large. Therefore, the detection wheel 11 will push the connecting plate 26 downward through the vertical rod 9, the placing plate 15, the pushing electric push rod 24 and the pushing seat 25. The connecting plate 26 drives the positioning block 172 to slide downward relative in the positioning cylinder 171 through the sliding plate 23. The positioning block 172 can, through the frictional force between the rubber ring 18 and the positioning cylinder 171, remain stationary in the positioning cylinder 171 when not subjected to the extrusion force transmitted by the pushing seat 25, so as to compensate for the embossing on the frost-resistant road surface. And before the detection, the road surface is pre-cleaned to remove the impurities on the road surface to ensure the detection accuracy of the road surface;

[0046] When formally detecting the flatness of the road surface subsequently, adjust the position of the detection frame 1 so that the two detection wheels 11 are respectively located in the areas where the vehicle tires often travel on the road surface (at the ruts), and then pull and detect the device by a towing vehicle. Referring to the above principle, when there is a protrusion in the detection area, the detection 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. 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 an external power supply. When the first conductive block 16 contacts the first resistor plate 132, an electrical signal will be sent to the PLC controller 2. Moreover, the greater the degree of protrusion, the farther the first conductive block 16 moves upward, and the closer the first conductive block 16 will be to the position near the upper end of the first resistor plate 132. Under the condition that the external voltage remains unchanged, the greater 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 on the display screen of the display control box 3. And the wheel type distance measuring instrument 19 synchronizes the distance information on the display screen for display. Thus, according to the distance, the corresponding protrusion can be quickly found (the current signal is converted from an analog quantity to a digital signal by the analog input module and input into the PLC controller 2. The PLC controller 2 reads this digital signal and makes logical judgments and data processing based on the pre-calibrated correspondence between the current intensity and the road surface protrusion degree, and then establishes a connection with the display screen through communication methods such as the set RS-232, RS-485 or Ethernet, writes the 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 situation to the specified position of the display screen for display). Similarly, when the detection wheel 11 encounters a large depression, the depression will cause the detection wheel 11 to move downward a relatively long 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 that the first conductive block 16 moves downward will exceed the embossing compensation distance), so as to display the depression area on the display screen;

[0047] Since the mutually remote ends of the first resistor plate 132 and the second resistor plate 14 are electrically connected to the electromagnetic block 29, after the first conductive block 16 comes into contact with the first resistor plate 132 and the second resistor plate 14, an external current will still be transmitted to the electromagnetic block 29 through the first resistor plate 132 or the second resistor plate 14, energizing the electromagnetic block 29 to generate a 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 come into contact with a position near the upper end of the first resistor plate 132, or with a position near the lower end of the second resistor plate 14, thereby reducing the resistance in the circuit connected to the electromagnetic block 29. With the external voltage remaining unchanged, a larger current will be transmitted to the circuit of the electromagnetic block 29, and the electromagnetic block 29 will generate a larger magnetic suction force. 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, causing the trigger plate 30 to come into contact with the trigger block 31. The trigger plate 30 is electrically connected to an 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 opening of the electro-controlled one-way valve 34. Since the roller 7 drives the cam 41 to rotate together through the axle part during rotation, when the protruding part of the cam 41 rotates to the upper side, it will push up the push frame 40. The push frame 40 will drive the piston plate 39 to move upward. The piston plate 39 will squeeze the air above, causing the air above to enter the display cylinder 32 through the air inlet pipe 33 and the electro-controlled one-way valve 34, increasing the air pressure below the piston seat 43. The piston seat 43 will drive the indicating frame 44 to move upward by one scale position (the surface of the display cylinder 32 is provided with scales, and one scale indicates an area with excessive protrusions or depressions on the road surface). And when the piston seat 43 moves upward to the highest position, it will squeeze the trigger switch 56, and the trigger switch 56 will control the electro-controlled one-way valve 34 to close. When the protruding 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 will move downward to the bottom together, and the external gas will enter the intake cylinder 35 through the one-way pipe 57 and the small one-way valve 58. When the protruding part of the cam 41 pushes up the piston plate 39 with the electro-controlled one-way valve 34 not open, the gas inside the intake cylinder 35 will be discharged through the pressure relief pipe 36 and the pressure valve 37;

[0048] When the detection device moves to a road surface with left - right inclination (due to reasons such as roadbed settlement, causing one side of the road surface to be higher and the other side to be lower), the detection frame 1 will drive the disc 451 and the arc plates 47 on both sides to rotate left - right by a certain angle. Under the action of gravity, the energized block 46 and the vertical rod 452 always remain in the vertical state, so that the energized block 46 contacts one side of the arc plate 47. The energized block 46 is electrically connected to an external power source, and the arc plate 47 contacts the pump 49. Therefore, after the energized block 46 contacts the arc plate 47, the pump 49 will work, and the pump 49 will spray the pigment inside the pigment box 48 through the nozzle 50, thus marking the inclined section of the road surface (the pigment can be cleaned by the operator later), which is convenient for the operator to repair in time later and ensures the safety performance of the antifreeze road surface;

[0049] When the detection wheel 11 travels to an area where the embossing is severely worn (usually at the rut mark), the detection wheel 11 will drive the second conductive block 54 to move downward through the corresponding vertical rod 9. The auxiliary roller 12 contacts the middle position of the road surface (the middle position of the road surface has less contact time with the wheels and less wear). 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 an external power source, and the lower end of the third resistor plate 53 is electrically connected to the PLC controller 2. Referring to the above principle, the worn area of the embossing can be displayed on the display screen on the surface of the display control box 3, which is convenient for the operator to repair later and ensures the friction of the antifreeze road surface, thus improving the driving safety of the antifreeze road surface.

[0050] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within 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 position of excessive tilt on the left and right sides of the road surface. The two detection assemblies (13) each include 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 assembly (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) and are located at the rear ends of the two left and right vertical rods (9). The positioning assembly (17) comprises a positioning cylinder (171) fixedly connected to the rear side of the detection cover (131), a positioning block (172) being slidably arranged inside the positioning cylinder (171), two rubber rings (18) being fixedly sleeved on the outer wall of the positioning block (172), a positioning groove being provided on the rear side wall of the positioning block (172), a positioning electric push rod (20) being inserted into the positioning groove, a rough block (21) being fixedly connected to the movable end of the positioning electric push rod (20), and a reset block (21) being fixedly connected to the lower side wall of the positioning cylinder (171). The electric push rod (22) is fixedly connected to the front side wall of the positioning block (172) with 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 moving end of the push electric push rod (24) is fixedly connected to a push seat (25). The lower end of the second resistor plate (14) is fixedly connected to a connecting plate (26) via a bracket. The two display components (27) each include a working box (271). The two working boxes (271) are respectively connected to the detection frame. The left and right inner walls of the working box (271) are fixedly connected, 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), 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 wall of the lifting seat (272) is fixedly connected to a trigger plate (30), the trigger plate (30) is electrically connected to an external power supply, 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 fixed parts of the two rollers (7) are fixedly connected to a display tube (32); the lower side wall of the display tube (32) is fixedly connected to an air intake pipe (33); an electrically 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 to an air intake cylinder (35); the side wall of the air intake cylinder (35) is connected to a one-way pipe (57); a small one-way valve (58) is provided in the one-way pipe (57); the side wall of the air intake cylinder (35) is connected to a pressure relief pipe (36); a pressure valve (37) is provided in the pressure relief pipe (36). The inner wall of the air intake 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, 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), and the inner wall of the display cylinder (32) is fixedly connected to a placement ring (42 ), a piston seat (43) is placed above the placement ring (42), an 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), a counterweight is fixedly connected to the lower side wall of the piston seat (43), the tilt mark assembly (45) comprises a disk (451) fixedly connected to the right side of the detection frame (1), the center position of the disk (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) is connected, and the power block (46) is electrically connected to an external power source. The front side wall of the disc (451) is inlaid with two arc plates (47), and 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), and 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).

2. The antifreeze road surface flatness detection device according to claim 1, 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).

3. 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.

4. 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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