Road asphalt pavement detection device

Abstract

The invention belongs to the technical field of engineering detection equipment, and relates to a highway asphalt pavement detection device which comprises a box body, a water seepage assembly, a turntable, a rotating opening, at least one transmission cylinder, a first transmission rod and a first moving block, the rotating assembly is used for driving the transmission cylinder to rotate; and the pressure assembly is used for applying different pressures to the first transmission rod in the process that the first transmission rod rotates along with the transmission cylinder, and simulating dynamic loads formed by different vehicles. The first moving block can be driven by the rotating assembly to rotate around the water seepage assembly along the asphalt pavement, and different pressures are applied to the first moving block in the rotating process through the pressure assembly, so that the first moving block can apply different forces to the asphalt pavement in the rotating process, and dynamic loads formed by different vehicles are simulated; therefore, the influence of dynamic load on water seepage in the actual use process of the asphalt pavement is simulated, the large deviation between the final detection result and the actual situation is avoided, and the accuracy of asphalt pavement detection is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of engineering detection equipment and relates to a highway asphalt pavement detection device. Background Art

[0002] Asphalt pavement is a widely used road paving material with good properties such as wear resistance, skid resistance, water resistance and durability. It is composed of asphalt and various mineral materials (coarse aggregate, fine aggregate, filler). The multi-layer structure design of asphalt pavement ensures that the pavement can effectively withstand vehicle loads and the influence of natural factors. Since the asphalt pavement structure is subjected to water erosion that is far more severe than the road surface, in order to minimize the water damage of the pavement structure layer, this requires that the interlayer bonding material of the asphalt pavement is not only highly water-tight, but also has a certain ability to resist water damage.

[0003] At present, pavement water permeability meters are often used in road construction. The water seepage performance of the pavement is evaluated by measuring the amount of water that penetrates into a certain area of ​​the pavement per unit time as the pavement water permeability coefficient, thereby reflecting the gradation composition of the pavement asphalt mixture and other conditions.

[0004] However, since asphalt pavements are often accompanied by dynamic loads generated by different vehicles during actual use, the structure of the asphalt pavement will change under the action of dynamic loads, affecting the penetration path and rate of water. Only using a pavement permeability meter for static seepage detection cannot simulate the impact of dynamic loads on seepage during the actual use of asphalt pavements, resulting in a large deviation between the final test results and the actual situation. Summary of the invention

[0005] The purpose of the present invention is to provide a highway asphalt pavement detection device, which can perform water seepage detection on the asphalt pavement under dynamic load, thereby avoiding the situation where the final detection result deviates greatly from the actual situation.

[0006] To achieve the above purpose, the specific technical solution of a highway asphalt pavement detection device provided by the present invention is as follows:

[0007] A highway asphalt pavement detection device comprises a box body, a water seepage component is arranged at the lower part of the box body, and further comprises:

[0008] The turntable is arranged horizontally, a rotating opening is opened at the lower part of the box body, the turntable is located in the rotating opening and is rotatably connected with the rotating opening, and the water seepage component passes through the turntable and is movably connected with the turntable;

[0009] At least one transmission cylinder is vertically arranged on one side of the water seepage assembly, and the transmission cylinder passes through the rotating disk and is fixedly connected to the rotating disk;

[0010] A first transmission rod is vertically arranged at the lower part of the transmission cylinder, and an upper end of the first transmission rod is located in the transmission cylinder and is slidably connected to the transmission cylinder;

[0011] A first moving block is arranged at the lower end of the first transmission rod, and the lower part of the first moving block is used to contact with the asphalt road surface;

[0012] A rotating assembly is connected to the transmission cylinder and is used to drive the transmission cylinder to rotate;

[0013] The pressure assembly is arranged in the transmission cylinder and is used to apply different pressures to the first transmission rod when the first transmission rod rotates with the transmission cylinder, so as to simulate the corresponding dynamic load.

[0014] The present invention is also characterized in that:

[0015] The rotating components include:

[0016] An installation cylinder is vertically arranged in the box body, the upper end of the installation cylinder is fixedly connected to the top of the box body, and the water seepage component passes through the installation cylinder;

[0017] A first gear is sleeved on the mounting cylinder and is rotatably connected to the mounting cylinder, and a transmission cylinder passes through the first gear and is fixedly connected to the first gear;

[0018] The motor is arranged in the box;

[0019] The second gear is sleeved on the output end of the motor and is located close to the first gear. The first gear is meshed and connected with the second gear.

[0020] The pressure components include:

[0021] A second transmission rod is vertically arranged on the upper part of the transmission cylinder, and the lower end of the second transmission rod is located in the transmission cylinder;

[0022] The first slider and the second slider are slidably arranged in the transmission cylinder, the first slider is connected to the upper end of the first transmission rod, and the second slider is connected to the lower end of the second transmission rod;

[0023] An elastic member is vertically arranged between the first slider and the second slider, and two ends of the elastic member are respectively connected to the first slider and the second slider;

[0024] The intermittent up and down moving component is arranged at the upper end of the second transmission rod, and is used to drive the second transmission rod to move up and down intermittently when the second transmission rod rotates with the transmission cylinder, so as to adjust the length of the elastic member, and the length of the elastic member adjusted each time is different.

[0025] The intermittent up and down moving components include:

[0026] A plurality of first hemispherical protrusions are arranged at the top of the box body and are evenly arranged around the mounting tube. The diameters of the plurality of first hemispherical protrusions are different, and the spherical surface of each first hemispherical protrusion faces downward.

[0027] The second moving block is arranged at the upper end of the second transmission rod, and the second moving block is located between two of the first hemispherical protrusions.

[0028] The diameters of the plurality of first hemispherical protrusions gradually increase from positions close to the second moving block.

[0029] A second hemispherical protrusion is arranged between two adjacent first hemispherical protrusions, with the spherical surface of the second hemispherical protrusion facing downward. There are two second movable blocks, which are symmetrically arranged on both sides of the mounting tube. The diameters of the multiple first hemispherical protrusions increase in a clockwise direction starting from close to one of the second movable blocks, and the diameters of the multiple second hemispherical protrusions increase in a clockwise direction starting from close to another second movable block.

[0030] The first moving block has a first ball groove at the bottom, a first moving ball is arranged in the first ball groove, the second moving block has a second ball groove at the top, a second moving ball is arranged in the second ball groove, and the top of the second moving ball contacts the top of the box body.

[0031] The water seepage components include:

[0032] The water storage cylinder is vertically arranged on the upper part of the box body and is located close to the mounting cylinder. The water storage cylinder is a transparent structure and has scales on the side;

[0033] A rubber sealing block is arranged below the installation cylinder, and a groove is provided at the lower part of the rubber sealing block;

[0034] The water outlet pipe is vertically arranged between the water storage cylinder and the rubber sealing block. The upper end of the water outlet pipe passes through the turntable, the installation cylinder, and the top of the box body and is connected with the water storage cylinder. The lower end of the water outlet pipe passes through the rubber sealing block and is located in the groove.

[0035] The highway asphalt pavement detection device of the present invention has the following advantages:

[0036] First, through the cooperation of at least one transmission cylinder, a first transmission rod, a first moving block, a rotating assembly and a pressure assembly, the rotating assembly can drive the first moving block to rotate around the water seepage assembly along the asphalt pavement, and the pressure assembly can apply different pressures to the first moving block during the rotation process, so that the first moving block can apply different forces to the asphalt pavement during the rotation process, simulating the dynamic loads formed by different vehicles, thereby simulating the influence of dynamic loads on water seepage during the actual use of the asphalt pavement, avoiding large deviations between the final detection results and the actual situation, and improving the accuracy of asphalt pavement detection.

[0037] Second, through the coordination of the first slider, the elastic member, the second moving block and the gradually increasing diameter of the multiple first hemispherical protrusions, the distance that the second moving block drives the second transmission rod to move downward when passing through the multiple first hemispherical protrusions clockwise or counterclockwise can gradually increase or decrease, thereby causing the force applied by the elastic member to the asphalt pavement through the first slider to gradually increase or decrease, simulating the pressure of the vehicle on the asphalt pavement gradually increasing during acceleration or gradually decreasing during deceleration, thereby further simulating the effect of dynamic load on water seepage during actual use of the asphalt pavement. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0039] Figure 2 It is a schematic diagram of the main structure of the present invention;

[0040] Figure 3 It is a bottom view structural schematic diagram of the first gear and the second gear of the present invention;

[0041] Figure 4 For the present invention Figure 2 A magnified view of the local structure of part A;

[0042] Figure 5 This is a schematic diagram of the top of the box body of the present invention when viewed from above;

[0043] Figure 6 For the present invention Figure 2 A magnified view of the local structure of part B;

[0044] Figure 7 For the present invention Figure 2 Enlarged view of the local structure of part C in the middle.

[0045] Reference numerals:

[0046] 1. Box body; 2. Support legs; 3. Turntable; 4. Transmission cylinder; 5. First transmission rod; 6. Second transmission rod; 7. First moving block; 8. Second moving block; 9. First ball groove; 10. Second ball groove; 11. First moving ball; 12. Second moving ball; 13. Rotating port; 14. Water storage cylinder; 15. Through hole; 16. First gear; 17. Second gear; 18. Motor; 19. Counterweight; 20. First slider; 21. Second slider; 22. Elastic member; 23. Annular groove; 24. Limiting ring; 25. Electric hydraulic telescopic rod; 26. Water outlet pipe; 27. Solenoid valve; 28. Rubber sealing block; 29. ​​Groove; 30. Block; 31. Mounting cylinder; 32. First hemispherical protrusion; 33. Second hemispherical protrusion. DETAILED DESCRIPTION

[0047] The technical solution in the present application will be described clearly and in detail below in conjunction with the accompanying drawings. Among them, in the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B: "and / or" in the text is only a description of the association relationship of associated objects, indicating that there can be three relationships, such as A and / or B, which can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" refers to two or more than two. The following terms "first" and "second" are used for descriptive purposes only and cannot be understood as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0048] like Figure 1 , Figure 2 As shown, a highway asphalt pavement detection device includes a box body 1, at least one transmission cylinder 4, a first transmission rod 5, a first moving block 7, a rotating assembly and a pressure assembly. A water seepage assembly is arranged at the lower part of the box body 1, and the water seepage assembly is used to perform water seepage detection on the asphalt pavement. The turntable 3 is arranged horizontally, and a rotating port 13 is opened at the lower part of the box body 1. The turntable 3 is located in the rotating port 13 and is rotatably connected with the rotating port 13, so that the turntable 3 can rotate freely in the rotating port 13. The water seepage assembly passes through the turntable 3 and is movably connected with the turntable 3. At least one transmission cylinder 4 is vertically arranged on one side of the water seepage assembly, and the transmission cylinder 4 passes through the turntable 3 and is fixedly connected with the turntable 3. The turntable 3 makes the transmission cylinder 4 more stable during rotation. The first transmission rod 5 is vertically arranged at the lower part of the transmission cylinder 4, and the upper end of the first transmission rod 5 Located in the transmission cylinder 4 and slidably connected with the transmission cylinder 4, the first transmission rod 5 can move up and down in the transmission cylinder 4, the first moving block 7 is arranged at the lower end of the first transmission rod 5, and the lower part of the first moving block 7 is used to contact with the asphalt pavement, the rotating component is connected with the transmission cylinder 4, the rotating component is used to drive the transmission cylinder 4 to rotate, and the transmission cylinder 4 drives the first transmission rod 5 to rotate around the water seepage component, and the pressure component is arranged in the transmission cylinder 4. The pressure component is used to apply different pressures to the first transmission rod 5 as the first transmission rod 5 rotates with the transmission cylinder 4 to simulate the corresponding dynamic load, that is, to simulate the dynamic load formed by different vehicles, so as to simulate the influence of the dynamic load on the water seepage during the actual use of the asphalt pavement, avoid the final detection result to deviate greatly from the actual situation, and improve the accuracy of asphalt pavement detection.

[0049] like Figure 2As shown, an annular groove 23 is provided on the inner wall of the rotating mouth 13 along its circumference, and a limiting ring 24 is fixedly sleeved on the side of the rotating disk 3 near the annular groove 23. The outer side surface of the limiting ring 24 is located in the annular groove 23 and is slidably connected to the inner wall of the annular groove 23, so that the limiting ring 24 can rotate freely in the annular groove 23. A through hole 15 is provided on the rotating disk 3 near the water seepage component, and the water seepage component passes through the through hole 15, so that the water seepage component will not be affected during the rotation of the rotating disk 3.

[0050] like Figure 1 , Figure 2 As shown, support legs 2 are vertically arranged at the four corners of the lower part of the box body 1, and the upper end of each support leg 2 is fixedly connected to the box body 1. The four support legs 2 make the box body 1 suspended, which is convenient for the water seepage component to perform water seepage detection, and also convenient for the first transmission rod 5 to drive the first moving block 7 to rotate around the water seepage detection along the asphalt pavement. Counterweight blocks 19 are horizontally arranged at the lower ends of the two support legs 2 on the same side, and the upper part of the counterweight block 19 is fixedly connected to the lower ends of the corresponding two support legs 2. Through the two counterweight blocks 19, when the pressure component applies pressure to the first transmission rod 5, the box body 1 will not shake, so that the whole device can operate stably.

[0051] like Figure 2 , Figure 3 As shown, the rotating assembly includes a mounting cylinder 31, a first gear 16, a motor 18 and a second gear 17. The mounting cylinder 31 is vertically arranged in the box body 1, and the upper end of the mounting cylinder 31 is fixedly connected to the top of the box body 1. The water seepage assembly passes through the mounting cylinder 31. The first gear 16 is sleeved on the mounting cylinder 31 and is rotatably connected to the mounting cylinder 31, so that the first gear 16 can rotate freely. The transmission cylinder 4 passes through the first gear 16 and is fixedly connected to the first gear 16, that is, the first gear 16 can drive the transmission cylinder 4 to rotate around the mounting cylinder 31 during rotation. The motor 18 It is arranged in the box body 1, the motor 18 is fixedly connected to the box body 1, the second gear 17 is sleeved on the output end of the motor 18 and is located close to the first gear 16, the first gear 16 is meshed with the second gear 17, the motor 18 is started, the motor 18 drives the second gear 17 to rotate, the second gear 17 drives the first gear 16 to rotate, the first gear 16 drives the transmission cylinder 4 to rotate around the installation cylinder 31, the transmission cylinder 4 drives the first transmission rod 5 to rotate around the installation cylinder 31, and the first transmission rod 5 drives the first moving block 7 to rotate around the water seepage component along the asphalt pavement.

[0052] like Figure 2 , Figure 3 , Figure 4As shown, the pressure assembly includes a second transmission rod 6, a first slider 20, a second slider 21, an elastic member 22 and an intermittent up and down moving assembly. The second transmission rod 6 is vertically arranged on the upper part of the transmission cylinder 4, and the lower end of the second transmission rod 6 is located in the transmission cylinder 4. The first slider 20 and the second slider 21 are slidably arranged in the transmission cylinder 4, so that the first slider 20 and the second slider 21 can slide freely up and down in the transmission cylinder 4. The first slider 20 is connected to the upper end of the first transmission rod 5, and the first transmission rod 5 is limited by the first slider 20, so that the up and down movement of the first transmission rod 5 is more stable. The second slider 21 is connected to the lower end of the second transmission rod 6, and the second transmission rod 6 is limited by the second slider 21, so that the second transmission rod 6 can move up and down more stably. The downward movement is more stable. The elastic member 22 is vertically arranged between the first slider 20 and the second slider 21. The two ends of the elastic member 22 are respectively connected to the first slider 20 and the second slider 21. The intermittent up and down moving component is arranged at the upper end of the second transmission rod 6. The intermittent up and down moving component is used to drive the second transmission rod 6 to move up and down intermittently during the rotation of the second transmission rod 6 with the transmission cylinder 4. The length of the elastic member 22 is adjusted and the length of the elastic member 22 is different each time, so that the elastic force of the elastic member 22 is different each time, so that the downward pressure applied to the first transmission rod 5 by the elastic member 22 is different each time, simulating the dynamic load formed by different vehicles. At the same time, the elastic member 22 is preferably a spec large spring with an elastic coefficient of 1.0*10 5 N / m, providing greater elasticity for the road surface and simulating the pressure exerted by vehicles on the asphalt road surface as closely as possible.

[0053] like Figure 2 , Figure 5 As shown, the intermittent up and down moving component includes a plurality of first hemispherical protrusions 32 and a second moving block 8. The plurality of first hemispherical protrusions 32 are arranged at the top of the box body 1 and are evenly arranged around the mounting tube 31. The cross section of each first hemispherical protrusion 32 is fixedly connected to the top of the box body 1. The diameters of the plurality of first hemispherical protrusions 32 are different. The spherical surface of each first hemispherical protrusion 32 faces downward. The second moving block 8 is arranged at the upper end of the second transmission rod 6. The second moving block 8 is located between two of the first hemispherical protrusions 32, so that the second moving block 8 can pass through the plurality of first hemispherical protrusions 32 in sequence as the second transmission rod 6 rotates, thereby driving the second transmission rod 6 to move downward through the second moving block 8, and the downward movement distance each time is different.

[0054] like Figure 5As shown, the diameters of the multiple first hemispherical protrusions 32 gradually increase from the position close to the second moving block 8, so that when the second moving block 8 passes through the multiple first hemispherical protrusions 32 clockwise or counterclockwise, the distance that the second transmission rod 6 moves downward gradually increases or decreases, thereby causing the force applied by the elastic member 22 to the asphalt pavement through the first transmission rod 5 and the first slider 20 to gradually increase or decrease, simulating the pressure of the vehicle on the asphalt pavement gradually increasing during acceleration or gradually decreasing during deceleration, thereby further simulating the effect of dynamic load on water seepage during actual use of the asphalt pavement.

[0055] like Figure 5 As shown, a second hemispherical protrusion 33 is arranged between two adjacent first hemispherical protrusions 32, the spherical surface of the second hemispherical protrusion 33 faces downward, the cross section of the second hemispherical protrusion 33 is fixedly connected to the top of the box body 1, there are two second moving blocks 8, that is, the second transmission rod 6, the first transmission rod 5 and the two first moving blocks 7 each have two, the two second moving blocks 8 are symmetrically arranged on both sides of the mounting tube 31, the diameters of the plurality of first hemispherical protrusions 32 increase in sequence clockwise from the position close to one of the second moving blocks 8, and the diameters of the plurality of second hemispherical protrusions 33 increase in sequence clockwise from the position close to the other second moving blocks 8. The moving blocks 8 start to increase in size in a clockwise direction, so that each second moving block 8 can continuously and alternately pass through the first hemispherical protrusion 32 and the second hemispherical protrusion 33 during the rotation process, so that the downward moving distance of each second moving block 8 changes alternately, so that the force applied by each elastic member 22 to the asphalt pavement through the first transmission rod 5 and the first slider 20 changes alternately, simulating the alternating changes in the pressure on the asphalt pavement when different vehicles pass through speed bumps or uneven roads, thereby further simulating the influence of dynamic loads on water seepage during actual use of the asphalt pavement.

[0056] like Figure 2 , Figure 6 As shown, a first ball groove 9 is provided at the lower portion of the first movable block 7, and a first movable ball 11 is arranged in the first ball groove 9. The first movable ball 11 can rotate freely in the first ball groove 9, reducing the friction between the first movable ball 11 and the asphalt pavement, so that the first movable block 7 moves along the asphalt pavement more smoothly, while also reducing the contact area with the asphalt pavement, increasing the pressure on the asphalt pavement, and simulating the influence of dynamic load on water seepage during the actual use of the asphalt pavement. A second ball groove 10 is provided at the upper portion of the second movable block 8, and a second movable ball 12 is arranged in the second ball groove 10. The second movable ball 12 can rotate freely in the second ball groove 10, and the upper portion of the second movable ball 12 contacts with the top of the box body 1, reducing the friction between the second movable block 8 and the top of the box body 1, so that the second movable block 8 can pass through each first hemispherical protrusion 32 and each second hemispherical protrusion 33 more easily.

[0057] like Figure 2 , Figure 7 As shown, the water seepage component includes a water storage cylinder 14, a rubber sealing block 28 and a water outlet pipe 26. The water storage cylinder 14 is vertically arranged on the upper part of the box body 1 and is located close to the mounting cylinder 31. The water storage cylinder 14 is a transparent structure and a scale is arranged on the side. The water storage cylinder 14 is used to store water and record the water seepage rate through the scale during water seepage detection. The rubber sealing block 28 is arranged below the mounting cylinder 31. A groove 29 is provided at the lower part of the rubber sealing block 28. The rubber sealing block 28 seals the groove 29 when it contacts the asphalt pavement to prevent water from leaking from the lower part of the rubber sealing block 28. The water outlet pipe 26 is vertically arranged between the water storage cylinder 14 and the rubber sealing block 28. The upper end of the water outlet pipe 26 passes through the turntable 3, the mounting cylinder 31, and the top of the box body 1 and is connected to the water storage cylinder 14. The lower end of the water outlet pipe 26 passes through the rubber sealing block 28 and is located in the groove 29.

[0058] like Figure 7 As shown, a solenoid valve 27 is provided on the water outlet pipe 26 near the rubber sealing block 28. The water outlet pipe 26 is opened and closed by the solenoid valve 27, so that the water outlet pipe 26 is connected and disconnected with the inside of the groove 29, which is convenient for controlling the start and end of the water seepage detection. A stopper 30 is provided on the water outlet pipe 26 at a position inside the groove 29. The water outlet pipe 26 passes through the stopper 30 and is fixedly connected to the stopper 30. The stopper 30 is slidably connected to the inner wall of the groove 29, and the water outlet pipe 26 is prevented from slipping out from the upper part of the rubber sealing block 28 by the stopper 30.

[0059] like Figure 1 , Figure 2 , Figure 7 As shown, the lower part of the mounting cylinder 31 is a closed structure, the water outlet pipe 26 passes through the lower part of the mounting cylinder 31, the water outlet pipe 26 is slidably sealed and connected with the rubber sealing block 28, and two electric hydraulic telescopic rods 25 are vertically arranged between the rubber sealing block 28 and the mounting cylinder 31. The two electric hydraulic telescopic rods 25 are symmetrically arranged on both sides of the water outlet pipe 26, and the two ends of each electric hydraulic telescopic rod 25 are respectively connected with the lower part of the mounting cylinder 31 and the rubber sealing block 28, and the rubber sealing block 28 is moved up and down by the extension and retraction of the two electric hydraulic telescopic rods 25, and pressure is applied to the rubber sealing block 28, so that the lower part of the rubber sealing block 28 is in closer contact with the asphalt pavement, thereby further sealing the groove 29.

[0060] At the same time, a controller is provided on the box body 1, and the controller is electrically connected to the motor 18, the solenoid valve 27, and the two electric hydraulic telescopic rods 25 respectively. The controller controls the start and stop of the motor 18 and the solenoid valve 27 respectively, and at the same time, controls the extension and retraction of the two electric hydraulic telescopic rods 25.

[0061] Working principle: When in use, the device is moved to the position where water seepage detection is required on the asphalt pavement, and water is added into the water storage cylinder 14. Then, the two electric hydraulic telescopic rods 25 are extended by the controller so that the lower part of the rubber sealing block 28 is in close contact with the asphalt pavement to seal the groove 29. Then, the motor 18 and the solenoid valve 27 are started simultaneously by the controller. The solenoid valve 27 opens the water outlet pipe 26 so that water enters the groove 29 through the water outlet pipe 26. The water seepage rate is recorded by the scale on the side of the water storage cylinder 14.

[0062] At the same time, the motor 18 drives the second gear 17 to rotate, the second gear 17 drives the first gear 16 to rotate, the first gear 16 drives the two transmission cylinders 4 to rotate around the mounting cylinder 31, the two transmission cylinders 4 drive the two first transmission rods 5 and the two second transmission rods 6 to rotate around the mounting cylinder 31, the two first transmission rods 5 drive the two first moving balls 11 to rotate along the asphalt road surface around the rubber sealing block 28 through the two first moving blocks 7, the two second transmission rods 6 drive the two second moving balls 12 to rotate along the top of the box body 1 around the mounting cylinder 31 through the two second moving blocks 8, each second moving ball 12 continuously and alternately passes through the first hemispherical protrusion 32 and the second hemispherical protrusion 33, so that the distance moved downward by each second moving ball 12 changes alternately, so that the size of the contraction amount of each elastic member 22 changes alternately, and the size of the force applied to the asphalt road surface by each elastic member 22 through the first moving ball 11 changes alternately, simulating the situation where the pressure on the asphalt road surface by different vehicles passing through speed bumps or uneven roads changes alternately.

[0063] The highway asphalt pavement detection device of the present invention has the following advantages:

[0064] First, through the cooperation of at least one transmission cylinder, a first transmission rod, a first moving block, a rotating assembly and a pressure assembly, the rotating assembly can drive the first moving block to rotate around the water seepage assembly along the asphalt pavement, and the pressure assembly can apply different pressures to the first moving block during the rotation process, so that the first moving block can apply different forces to the asphalt pavement during the rotation process, simulating the dynamic loads formed by different vehicles, thereby simulating the influence of dynamic loads on water seepage during the actual use of the asphalt pavement, avoiding large deviations between the final detection results and the actual situation, and improving the accuracy of asphalt pavement detection.

[0065] Second, through the coordination of the first slider, the elastic member, the second moving block and the gradually increasing diameter of the multiple first hemispherical protrusions, the distance that the second moving block drives the second transmission rod to move downward when passing through the multiple first hemispherical protrusions clockwise or counterclockwise can gradually increase or decrease, thereby causing the force applied by the elastic member to the asphalt pavement through the first slider to gradually increase or decrease, simulating the pressure of the vehicle on the asphalt pavement gradually increasing during acceleration or gradually decreasing during deceleration, thereby further simulating the effect of dynamic load on water seepage during actual use of the asphalt pavement.

[0066] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A highway asphalt pavement detection device, comprising a box (1), wherein a water seepage component is arranged at the lower part of the box (1), characterized in that: Also includes: The turntable (3) is arranged horizontally, a rotating opening (13) is opened at the lower part of the box body (1), the turntable (3) is located in the rotating opening (13) and is rotatably connected to the rotating opening (13), and the water seepage component passes through the turntable (3) and is movably connected to the turntable (3); At least one transmission cylinder (4) is vertically disposed on one side of the water seepage component, and the transmission cylinder (4) passes through the rotating disk (3) and is fixedly connected to the rotating disk (3); A first transmission rod (5) is vertically arranged at the lower part of the transmission cylinder (4), and the upper end of the first transmission rod (5) is located in the transmission cylinder (4) and is slidably connected to the transmission cylinder (4); A first moving block (7) is arranged at the lower end of the first transmission rod (5), and the lower part of the first moving block (7) is used to contact with the asphalt road surface; A rotating assembly connected to the transmission cylinder (4) and used to drive the transmission cylinder (4) to rotate; The pressure component is arranged in the transmission cylinder (4) and is used to apply different pressures to the first transmission rod (5) when the first transmission rod (5) rotates with the transmission cylinder (4) to simulate corresponding dynamic loads.

2. The highway asphalt pavement detection device according to claim 1, characterized in that: The rotating assembly comprises: An installation tube (31) is vertically arranged in the box body (1), the upper end of the installation tube (31) is fixedly connected to the top of the box body (1), and the water seepage component passes through the installation tube (31); A first gear (16) is sleeved on the mounting cylinder (31) and is rotationally connected to the mounting cylinder (31); a transmission cylinder (4) passes through the first gear (16) and is fixedly connected to the first gear (16); A motor (18) is arranged in the housing (1); The second gear (17) is sleeved on the output end of the motor (18) and is located close to the first gear (16). The first gear (16) is meshedly connected with the second gear (17).

3. The highway asphalt pavement detection device according to claim 1, characterized in that: The pressure assembly comprises: A second transmission rod (6) is vertically arranged on the upper part of the transmission cylinder (4), and the lower end of the second transmission rod (6) is located inside the transmission cylinder (4); A first slider (20) and a second slider (21) are slidably arranged in the transmission cylinder (4), the first slider (20) being connected to the upper end of the first transmission rod (5), and the second slider (21) being connected to the lower end of the second transmission rod (6); An elastic member (22) is vertically arranged between the first slider (20) and the second slider (21), and two ends of the elastic member (22) are respectively connected to the first slider (20) and the second slider (21); The intermittent up-and-down moving assembly is arranged at the upper end of the second transmission rod (6) and is used to drive the second transmission rod (6) to intermittently move up and down when the second transmission rod (6) rotates with the transmission cylinder (4), thereby adjusting the length of the elastic member (22) and adjusting the length of the elastic member (22) to be different each time.

4. The highway asphalt pavement detection device according to claim 3, characterized in that: The intermittent up and down moving component comprises: A plurality of first hemispherical protrusions (32) are arranged at the top of the box body (1) and are evenly arranged around the mounting tube (31); the diameters of the plurality of first hemispherical protrusions (32) are different, and the spherical surface of each first hemispherical protrusion (32) faces downward; The second moving block (8) is arranged at the upper end of the second transmission rod (6), and the second moving block (8) is located between two of the first hemispherical protrusions (32).

5. The highway asphalt pavement detection device according to claim 4, characterized in that: The diameters of the plurality of first hemispherical protrusions (32) gradually increase from positions close to the second moving block (8).

6. The highway asphalt pavement detection device according to claim 4, characterized in that: A second hemispherical protrusion (33) is arranged between two adjacent first hemispherical protrusions (32), the spherical surface of the second hemispherical protrusion (33) faces downward, there are two second moving blocks (8), the two second moving blocks (8) are symmetrically arranged on both sides of the mounting tube (31), the diameters of the plurality of first hemispherical protrusions (32) increase in sequence clockwise from close to one of the second moving blocks (8), and the diameters of the plurality of second hemispherical protrusions (33) increase in sequence clockwise from close to another second moving block (8).

7. The highway asphalt pavement detection device according to claim 4, characterized in that: A first ball groove (9) is provided at the lower part of the first moving block (7), a first moving ball (11) is arranged in the first ball groove (9), a second ball groove (10) is provided at the upper part of the second moving block (8), a second moving ball (12) is arranged in the second ball groove (10), and the upper part of the second moving ball (12) contacts the top of the box body (1).

8. The highway asphalt pavement detection device according to claim 1, characterized in that: The water seepage component comprises: A water storage cylinder (14) is vertically arranged on the upper part of the box body (1) and is located close to the mounting cylinder (31). The water storage cylinder (14) is a transparent structure and has scales on the side thereof; A rubber sealing block (28) is arranged below the mounting cylinder (31), and a groove (29) is provided at the lower part of the rubber sealing block (28); The water outlet pipe (26) is vertically arranged between the water storage cylinder (14) and the rubber sealing block (28). The upper end of the water outlet pipe (26) passes through the rotating disk (3), the mounting cylinder (31), and the top of the box body (1) and is communicated with the water storage cylinder (14). The lower end of the water outlet pipe (26) passes through the rubber sealing block (28) and is located in the groove (29).

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