Thickness detection device for highway pavement laying

Abstract

The invention relates to the technical field of pavement detection, in particular to a thickness detection device and method.The thickness detection device comprises a sliding frame of a concave structure, four pulley blocks, a vertical frame and a semicircular protractor, the four pulley blocks are arranged at the bottom of the sliding frame and located at the four corners, and the vertical frame is fixedly installed in the center of the interior of the sliding frame; a clamping groove is formed in the upper portion of the middle section of the vertical frame, the semicircular protractor is fixedly installed on the inner wall of the bottom of the clamping groove, the two ends of the semicircular protractor extend to the exterior of the vertical frame, and a leveling mechanism is arranged in the vertical frame. The detection device and the measurement mechanism are kept perpendicular to the road surface, the measurement precision is effectively improved, meanwhile, loose and falling soil is continuously tamped in the drilling process, hole burying of the soil is reduced, the road surface depth detection efficiency is improved, and the internal structure of a road is conveniently observed.

Description

Technical Field

[0001] The present invention relates to the technical field of road surface detection, and specifically to a thickness detection device for highway road surface paving. Background Art

[0002] The depth detected by drilling can provide direct and accurate road depth information. Compared with other detection methods, drilling detection can directly reach different layers of the road, measure the actual thickness of each layer, and provide a reliable basis for evaluating the bearing capacity and service life of the road. Secondly, drilling detection can help engineers understand the internal structure of the road;

[0003] According to the publicly patented CN217180917U, a drilling device for detecting the carbonation depth of concrete in road bridges is provided with an elastic plate and a buffer spring. By using the cooperation of the elastic plate and the buffer spring, the vibration during the operation of the drilling device is reduced, and the safety of the drilling device is improved;

[0004] Although the above device can detect the road depth, the above equipment does not consider that during the road detection process, due to the daily rolling of vehicles on the road, the flatness of some road surfaces is lacking and there are deviations between the same section of the road surface. Accordingly, it is easy to increase the deviation risk during the operation of the drilling device, affecting the accuracy of road depth measurement; at the same time, when drilling the soil layer, due to the loosening of the upper soil layer and continuous downward scattering, it is easy to cause the internal soil of the hole to be buried, which will also pose certain obstacles to the measurement of the hole depth and the acquisition of the internal structure, and will also lead to deviations in the road depth measurement results and reduce the detection efficiency;

[0005] In view of this technical defect, a solution is proposed now. Summary of the Invention

[0006] The purpose of the present invention is to conveniently adjust the balance state of the detection frame quickly when detecting the road surface area with insufficient flatness, and keep both the detection device and the measuring mechanism perpendicular to the road surface, thereby effectively improving the measurement accuracy. At the same time, during the drilling process, the loose and falling soil is continuously tamped to reduce the burial of the soil in the hole, which not only improves the efficiency of road depth detection, but also facilitates the observation of the internal structure of the road.

[0007] The purpose of the present invention can be achieved by the following technical solutions: A thickness detection device for highway road surface paving includes a sliding frame with a concave structure, four sets of pulley groups, a vertical frame, and a semi-circular protractor. The four sets of pulley groups are respectively arranged at the four corners at the bottom of the sliding frame. The vertical frame is fixedly installed at the center inside the sliding frame, and a card slot is opened in the upper part of the middle section of the vertical frame. The semi-circular protractor is fixedly installed on the inner wall of the bottom of the card slot, and both ends of the semi-circular protractor extend to the outside of the vertical frame;

[0008] A leveling mechanism is arranged inside the vertical frame, and the leveling mechanism includes a leveling cross-frame. The leveling cross-frame is movably sleeved inside the card slot and hinged at the bottom end outside the semi-circular protractor. One end of the leveling cross-frame extends outside the sliding frame and is hinged with a detection frame, and a measuring mechanism is arranged inside the detection frame.

[0009] Furthermore, transverse grooves are formed in the front and rear end faces of the other end of the leveling cross-frame, and the length of the transverse grooves is half of the length of the leveling cross-frame. A sliding shaft is jointly slidably connected to the middle sections of the two groups of transverse grooves, and concave clamping frames are jointly connected to the front and rear ends of the sliding shaft. The concave clamping frames are sleeved at the top end of the sliding frame.

[0010] Furthermore, the leveling mechanism further includes a limiting frame with a loop structure. The limiting frame is fixedly installed inside the sliding frame at the opening end, and the leveling cross-frame transversely penetrates through the middle section of the limiting frame. Vertical grooves are formed in the inner walls of the front and rear ends of the limiting frame at the upper and lower ends of the leveling cross-frame. A double-axis sliding rod is jointly slidably connected between the bottom positions between the upper two groups of vertical grooves and the top positions between the lower two groups of vertical grooves. A damping spring shock absorber is jointly connected between each group of double-axis sliding rods and the inner wall of the corresponding limiting frame. Scale lines are arranged on one side of the limiting frame where the vertical grooves are located.

[0011] Furthermore, the measuring mechanism includes a fixing plate. The fixing plate is fixedly installed at the middle section inside the detection frame. A motor I is arranged on one side inner wall of the detection frame above the fixing plate, and a rotating rod is fixedly installed on the output shaft of the motor I. Steering gears are fixedly installed at both ends of the rotating rod. Limiting cylinders are fixedly installed at both sides of the front end of the rotating rod on the top surface of the fixing plate, and limiting grooves are formed in the rear end faces of the limiting cylinders.

[0012] Furthermore, a first vertical cylinder and a second vertical cylinder are respectively arranged through the two groups of limiting cylinders. Tooth groove groups are arranged on the rear end faces of the first vertical cylinder and the second vertical cylinder. The bottom of the first vertical cylinder extends to the lower end position of the fixing plate. A concave inserting frame is fixedly installed at the position corresponding to the upper and lower parts of the first vertical cylinder on the bottom inner wall of the detection frame, and a scale line is arranged on one side of the front end face of the concave inserting frame. The bottom of the second vertical cylinder extends to the lower end of the limiting cylinder and is provided with a motor II. A spiral drill cylinder is fixedly installed at the bottom output end of the motor II.

[0013] Furthermore, the spiral drill cylinder is of a hollow structure, and a pressing cylinder penetrates through the bottom cylinder opening of the spiral drill cylinder. A connecting rod is hinged at the center of the top of the pressing cylinder, and a sector turntable is hinged at one side of the top surface of the connecting rod. The center of the top of the sector turntable is fixedly connected to a motor III arranged on one side inner wall of the spiral drill cylinder.

[0014] Furthermore, a positioning groove is provided on one side of the center of the bottom surface of the detection frame, and a vertical rod is fixedly installed on the inner wall of the bottom of the detection frame on one side of the positioning groove, a cross rod is fixedly installed at the middle section of one side of the vertical rod, and double-axis clamping columns are fixedly installed at the upper and lower ends of the front end surface of the vertical rod and the front end surface of the cross rod and at one end away from the vertical rod, the spiral drill barrel is slidably connected between the three groups of double-axis clamping columns, and the spiral drill barrel is in contact with the center bearing of the double-axis clamping column.

[0015] The present invention also provides a method for using a road pavement thickness detection device, which specifically comprises the following steps:

[0016] Step 1: First, push the sliding frame to the flat road surface, and the detection frame is located on one side of the sliding frame and measure the upper end of the road surface. Use the leveling mechanism to determine the contact state between the detection frame and the ground and its own balance state: During road surface detection, if the area where the detection frame is located is lower than the surface of the sliding frame, the detection frame and the leveling horizontal frame will be tilted downward, and one end of the leveling horizontal frame will press the double-axis sliding bar at the lower end, then the other end of the leveling horizontal frame will be tilted upward, and the double-axis sliding bar will slide downward along the vertical groove, and the damping spring shock absorber will be compressed, and the final sliding height of the double-axis sliding bar will be the final concave thickness of the road surface in this area; conversely, if the area where the detection frame is located is higher than the surface of the sliding frame, the detection frame and the leveling horizontal frame will sink downward, and one end of the leveling horizontal frame will press the double-axis sliding bar at the upper end, then the other end of the leveling horizontal frame will sink downward, and the double-axis sliding bar will slide upward along the vertical groove, and the damping spring shock absorber will be compressed, and the final upward sliding height of the double-axis sliding bar will be the final protruding thickness of the road surface in this area, and this data is the road surface error data;

[0017] Step 2: After the position of the detection frame is determined, the position of the sliding shaft inside the horizontal groove is adjusted by sliding the concave clamping frame, that is, by moving to the left or right, the balance state of the leveling horizontal frame, the detection frame and the measuring mechanism is maintained;

[0018] Step 3: After the position of the detection frame is adjusted, the motor 1 is started, which uses the rotating rod to drive the two sets of steering gears to rotate counterclockwise, and respectively mesh with the tooth groove groups at the rear ends of the vertical cylinder 1 and the vertical cylinder 2, thereby forcing the vertical cylinder 1 and the vertical cylinder 2 to sink downward at the same time, wherein the vertical cylinder 1 is inserted into the corresponding concave insertion frame, and the vertical cylinder 2 presses the auger barrel downward, and the motor 2 drives the auger barrel to rotate, and the auger barrel drills a hole deep into the road surface, and the depth of the vertical cylinder 1 inserted into the concave insertion frame represents the depth of the auger barrel inserted into the soil layer, and is marked with a scale line, and then the auger barrel depth is added or subtracted from the ground error data, and the result is the actual road depth;

[0019] Step 4: Motor 2 drives the spiral drill barrel to rotate downward for drilling, and motor 3 starts synchronously, drives the fan-shaped turntable to rotate, and pulls the connecting rod and the pressure barrel to reciprocate up and down, and presses and tamps the drilling area to keep the hole vertical and unobstructed, so as to facilitate the construction personnel to measure and view, and improve the drilling measurement efficiency;

[0020] Step Five: After the road surface drilling is completed, the second vertical cylinder pulls the spiral drill cylinder upward, and the outer wall of the spiral drill cylinder rolls frictionally with the inner shafts of the three groups of double-axis clamping columns in sequence. This can not only assist in pulling out the spiral drill cylinder upward, but also remove the soil blocks remaining on the outer wall of the spiral drill cylinder to keep the surface of the spiral drill cylinder clean, facilitating subsequent drilling.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. In the present invention, by setting up a vertical frame, a leveling mechanism and a detection frame, the detection frame is located on one side of the sliding frame and measures the upper end of the road surface. The leveling mechanism is used to determine the contact state between the detection frame and the ground and its own balance state, determine the gap between the measured road surface and the detection frame, and obtain the road surface error data. At the same time, the concave clamping frame is used to adjust the leveling cross frame and the detection frame to a balanced state. This structure facilitates quickly adjusting the balance state of the detection frame when detecting areas of the road surface with insufficient flatness, and keeps both the detection device and the measuring mechanism perpendicular to the road surface, thereby effectively improving the measurement accuracy.

[0023] 2. The present invention also sets up a measuring mechanism. The first motor drives two steering gears to rotate counterclockwise, forcing the first vertical cylinder and the second vertical cylinder to sink downward simultaneously. The first vertical cylinder is inserted into the corresponding concave insertion frame, and the second vertical cylinder presses downward on the spiral drill cylinder. The second motor drives the spiral drill cylinder to rotate, and the spiral drill cylinder drills into the road surface deep. The depth of the first vertical cylinder inserted into the concave insertion frame represents the depth of the spiral drill cylinder inserted into the soil layer, and is marked using scale lines. Then, by adding or subtracting the ground error data from the depth of the spiral drill cylinder, the result is the actual road depth.

[0024] While the spiral drill cylinder rotates downward for drilling, the third motor drives the sector turntable to rotate, and pulls the connecting rod and the pressing cylinder to move up and down reciprocally, and presses and rams the soil in the drilling area to keep the hole vertical and unobstructed, facilitating construction workers to measure and observe, and improving the drilling and measuring efficiency. Description of the Drawings

[0025] For the convenience of those skilled in the art to understand, the present invention will be further described below with reference to the accompanying drawings.

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a plan view of the overall structure of the present invention;

[0028] Figure 3 It is a cross-sectional view of the detection frame of the present invention;

[0029] Figure 4 It is a top cross-sectional view of the detection frame of the present invention;

[0030] Figure 5 Schematic three-dimensional view of the combination of the first vertical cylinder and the limiting cylinder of the present invention;

[0031] Figure 6 Cross-sectional view of the spiral drill cylinder of the present invention;

[0032] Figure 7 Schematic three-dimensional view of the combination of the spiral drill cylinder, the vertical rod, the cross rod and the double-axis clamping column of the present invention.

[0033] In the figure: 1. Slide frame; 2. Vertical frame; 201. Card slot; 3. Semi-circular protractor; 4. Leveling mechanism; 41. Leveling cross frame; 42. Horizontal slot; 43. Slide shaft; 44. Concave clamping frame; 45. Limiting frame; 46. Vertical slot; 47. Double-axis slide rod; 48. Damping spring shock absorber; 5. Detection frame; 6. Measuring mechanism; 61. Fixed plate; 62. First motor; 63. Rotating rod; 64. Steering gear; 65. Limiting cylinder; 66. Limiting slot; 67. First vertical cylinder; 68. Second vertical cylinder; 69. Tooth groove group; 610. Concave insertion frame; 611. Second motor; 612. Spiral drill cylinder; 613. Pressing cylinder; 614. Connecting rod; 615. Sector turntable; 616. Third motor; 7. Positioning slot; 8. Vertical rod; 9. Cross rod; 10. Double-axis clamping column. Specific embodiments

[0034] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment 1: Please refer to Figure 1 - Figure 7 As shown, a thickness detection device for highway pavement laying includes a slide frame 1 with a concave structure, four sets of pulley groups, a vertical frame 2 and a semi-circular protractor 3. The four sets of pulley groups are respectively arranged at the four corners at the bottom of the slide frame 1. The vertical frame 2 is fixedly installed at the center inside the slide frame 1, and a card slot 201 is opened in the upper part of the middle section of the vertical frame 2. The semi-circular protractor 3 is fixedly installed on the inner wall of the bottom of the card slot 201, and both ends of the semi-circular protractor 3 extend outside the vertical frame 2. A leveling mechanism 4 is arranged inside the vertical frame 2;

[0036] And the leveling mechanism 4 includes a leveling cross frame 41. The leveling cross frame 41 is movably sleeved inside the card slot 201 and is hinged at the bottom end outside the semi-circular protractor 3. One end of the leveling cross frame 41 extends outside the slide frame 1 and is hinged with a detection frame 5. And a measuring mechanism 6 is arranged inside the detection frame 5. First, the slide frame 1 is pushed to a flat road surface, and the detection frame 5 is located on one side of the slide frame 1 and measures the upper end of the road surface. The leveling mechanism 4 is used to determine the contact state between the detection frame 5 and the ground and its own balance state;

[0037] The front and rear end surfaces of the other end of the leveling horizontal frame 41 are both provided with horizontal grooves 42, and the length of the horizontal grooves 42 is half of the length of the leveling horizontal frame 41. The middle sections of the two sets of horizontal grooves 42 are slidably connected with a sliding shaft 43, and the front and rear ends of the sliding shaft 43 are commonly connected with a concave card frame 44, which is sleeved at the top of the sliding frame 1. The leveling mechanism 4 also includes a limit frame 45 of a round-shaped structure, which is fixedly installed inside the sliding frame 1 at the open end;

[0038] The leveling horizontal frame 41 is horizontally passed through the middle section of the limit frame 45. The inner walls of the front and rear ends of the limit frame 45 are provided with vertical grooves 46 at the upper and lower ends of the leveling horizontal frame 41. The bottom position between the two groups of vertical grooves 46 at the upper end and the top position between the two groups of vertical grooves 46 at the lower end are slidably connected with double-axis slide bars 47. A damping spring shock absorber 48 is commonly connected between each group of double-axis slide bars 47 and the corresponding inner wall of the limit frame 45. The limit frame 45 is provided with a scale line at one side of the vertical groove 46.

[0039] During road surface detection, if the detection frame 5 is located in an area lower than the surface of the sliding frame 1, the detection frame 5 and the leveling horizontal frame 41 will tilt downward, and one end of the leveling horizontal frame 41 will press the double-axis sliding rod 47 at the lower end, and the other end of the leveling horizontal frame 41 will tilt upward, and the double-axis sliding rod 47 will slide downward along the vertical groove 46, and the damping spring shock absorber 48 will be compressed, and the final sliding height of the double-axis sliding rod 47 will be the final depression thickness of the road surface in this area;

[0040] On the contrary, if the area where the detection frame 5 is located is higher than the surface of the sliding frame 1, the detection frame 5 and the leveling horizontal frame 41 sink downward, one end of the leveling horizontal frame 41 presses against the double-axis sliding rod 47 at the upper end, and the other end of the leveling horizontal frame 41 sinks downward, and the double-axis sliding rod 47 slides upward along the vertical groove 46, and the damping spring shock absorber 48 is compressed. The final upward sliding height of the double-axis sliding rod 47 is the final protruding thickness of the road surface in this area, and this data is the road surface error data;

[0041] When the position of the detection frame 5 is determined, the position of the sliding shaft 43 inside the horizontal groove 42 is adjusted by sliding the concave clamping frame 44, that is, the balance of the leveling horizontal frame 41, the detection frame 5 and the measuring mechanism 6 is maintained by moving to the left or right. This structure is convenient for quickly adjusting the balance of the detection frame 5 when detecting road surface areas that lack flatness, while keeping the detection device and the measuring mechanism 6 perpendicular to the road surface, thereby effectively improving the measurement accuracy.

[0042] Example 2: Please refer to Figure 3 - Figure 6As shown in the figure, the measuring mechanism 6 includes a fixed plate 61, which is fixedly installed at the middle section inside the detection frame 5. At the upper end of the fixed plate 61, a first motor 62 is arranged at one inner wall side of the detection frame 5, and a rotating rod 63 is fixedly installed on the output shaft of the first motor 62. Steering gears 64 are fixedly installed at both ends of the outer part of the rotating rod 63. At both sides of the front end of the rotating rod 63 on the top surface of the fixed plate 61, limiting cylinders 65 are fixedly installed, and a limiting groove 66 is opened at the rear end surface of the limiting cylinder 65;

[0043] A first vertical cylinder 67 and a second vertical cylinder 68 are respectively arranged through the two groups of limiting cylinders 65. Tooth groove groups 69 are arranged at the rear end surfaces of the first vertical cylinder 67 and the second vertical cylinder 68. The bottom of the first vertical cylinder 67 extends to the lower end position of the fixed plate 61. At the position corresponding to the first vertical cylinder 67 up and down on the bottom inner wall of the detection frame 5, a concave insertion frame 610 is fixedly installed, and a scale line is arranged at one side of the front end surface of the concave insertion frame 610. The bottom of the second vertical cylinder 68 extends to the lower end of the limiting cylinder 65 and a second motor 611 is arranged;

[0044] After the position of the detection frame 5 is adjusted, the first motor 62 is started. It drives the two steering gears 64 to rotate counterclockwise by using the rotating rod 63, and they are respectively engaged with the tooth groove groups 69 at the rear ends of the first vertical cylinder 67 and the second vertical cylinder 68, so as to force the first vertical cylinder 67 and the second vertical cylinder 68 to sink downward simultaneously. Among them, the first vertical cylinder 67 is inserted into the corresponding concave insertion frame 610, and the second vertical cylinder 68 presses downward on the screw drill cylinder 612. And the second motor 611 drives the screw drill cylinder 612 to rotate. The screw drill cylinder 612 drills into the road surface deeply. The depth of the first vertical cylinder 67 inserted into the concave insertion frame 610 represents the depth of the screw drill cylinder 612 inserted into the soil layer, and it is marked by using the scale line. Then, by adding or subtracting the ground error data from the depth of the screw drill cylinder 612, the result is the actual road depth.

[0045] The bottom output end of the second motor 611 is fixedly installed with a screw drill cylinder 612. The screw drill cylinder 612 is of a hollow structure, and a pressing cylinder 613 is arranged through the bottom cylinder opening thereof. A connecting rod 614 is hinged at the center of the top of the pressing cylinder 613, and a sector turntable 615 is hinged at one side of the top surface of the connecting rod 614. The center of the top of the sector turntable 615 is fixedly connected with a third motor 616 arranged at one inner wall side of the screw drill cylinder 612;

[0046] The second motor 611 drives the screw drill cylinder 612 to rotate downward for drilling, and the third motor 616 is started synchronously, and it drives the sector turntable 615 to rotate, and pulls the connecting rod 614 and the pressing cylinder 613 to move up and down reciprocally, and presses and rams the drilling area, so as to keep the hole vertical and unobstructed, so as to facilitate the construction personnel to measure and observe, and improve the drilling and measuring efficiency.

[0047] Embodiment 3: Please refer to Figure 3 and Figure 7As shown, a positioning groove 7 is provided on the bottom surface of the detection frame 5 at one side of the center, and a vertical rod 8 is fixedly installed on the inner wall of the bottom of the detection frame 5 at one side of the positioning groove 7, a cross bar 9 is fixedly installed at the middle section of one side of the vertical rod 8, and a double-axis clamping column 10 is fixedly installed at the upper and lower ends of the front end surface of the vertical rod 8 and the end of the front end surface of the cross bar 9 away from the vertical rod 8. The spiral drill tube 612 is slidably connected between the three groups of double-axis clamping columns 10, and the spiral drill tube 612 is in contact with the central bearing of the double-axis clamping column 10;

[0048] When the road surface drilling is completed, the vertical cylinder 68 pulls the auger cylinder 612 upward, and the outer wall of the auger cylinder 612 rolls and rubs against the inner shafts of the three groups of double-axis clamping columns 10 in turn, which not only assists the auger cylinder 612 to be pulled upward, but also removes the soil blocks remaining on the outer wall of the auger cylinder 612 to keep the surface of the auger cylinder 612 clean, which is convenient for subsequent drilling.

[0049] Embodiment 4: As an embodiment of the present invention, a method for using a road pavement thickness detection device is also disclosed, and the method specifically comprises the following steps:

[0050] Step 1: First, push the slide frame 1 to a flat road surface, and the detection frame 5 is located on one side of the slide frame 1 and the upper end of the road surface is measured. The leveling mechanism 4 is used to determine the contact state between the detection frame 5 and the ground and its own balance state. During the road surface detection, if the area where the detection frame 5 is located is lower than the surface of the slide frame 1, the detection frame 5 and the leveling horizontal frame 41 will be tilted downward, and one end of the leveling horizontal frame 41 presses against the double-axis slide bar 47 at the lower end, and the other end of the leveling horizontal frame 41 will be tilted upward, and the double-axis slide bar 47 will slide downward along the vertical groove 46, and the damping spring shock absorber 48 will be compressed. The final sliding height of the double-axis slide bar 47 is the final depression thickness of the road surface in this area;

[0051] On the contrary, if the area where the detection frame 5 is located is higher than the surface of the sliding frame 1, the detection frame 5 and the leveling horizontal frame 41 sink downward, one end of the leveling horizontal frame 41 presses against the double-axis sliding rod 47 at the upper end, and the other end of the leveling horizontal frame 41 sinks downward, and the double-axis sliding rod 47 slides upward along the vertical groove 46, and the damping spring shock absorber 48 is compressed. The final upward sliding height of the double-axis sliding rod 47 is the final protruding thickness of the road surface in this area, and this data is the road surface error data;

[0052] Step 2: After the position of the detection frame 5 is determined, the position of the slide shaft 43 in the transverse groove 42 is adjusted by sliding the concave clamping frame 44, that is, by moving to the left or right, the balance state of the leveling transverse frame 41, the detection frame 5 and the measuring mechanism 6 is maintained;

[0053] Step 3: After the position of the detection frame 5 is adjusted, the first motor 62 is started. It drives two sets of steering gears 64 to rotate counterclockwise by means of the rotating rod 63, and they respectively engage with the tooth groove groups 69 at the rear ends of the first vertical cylinder 67 and the second vertical cylinder 68, forcing the first vertical cylinder 67 and the second vertical cylinder 68 to sink downward simultaneously. The first vertical cylinder 67 is inserted into the corresponding concave insertion frame 610, and the second vertical cylinder 68 presses downward on the screw drill cylinder 612. The second motor 611 drives the screw drill cylinder 612 to rotate, and the screw drill cylinder 612 drills into the road surface deep. The depth at which the first vertical cylinder 67 is inserted into the concave insertion frame 610 represents the depth at which the screw drill cylinder 612 is inserted into the soil layer, and it is marked using scale lines. Then, the depth of the screw drill cylinder 612 is added to or subtracted from the ground error data, and the result is the actual road depth;

[0054] Step 4: The second motor 611 drives the screw drill cylinder 612 to rotate downward for drilling, and the third motor 616 is started synchronously. It drives the sector turntable 615 to rotate, and pulls the connecting rod 614 and the pressing cylinder 613 to move up and down reciprocally, and presses and rams the drilling area to keep the hole vertical and unobstructed, so as to facilitate the construction personnel to measure and observe, and improve the drilling and measuring efficiency;

[0055] Step 5: After the road surface drilling is completed, the second vertical cylinder 68 pulls the screw drill cylinder 612 upward, and the outer wall of the screw drill cylinder 612 rolls and rubs against the inner shafts of the three groups of double-axis clamping columns 10 in sequence. This can not only assist the upward extraction of the screw drill cylinder 612, but also remove the soil blocks remaining on the outer wall of the screw drill cylinder 612 to keep the surface of the screw drill cylinder 612 clean, facilitating subsequent drilling.

[0056] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to only the specific implementation manners. Obviously, many modifications and variations can be made according to the content of this specification. This specification selects and specifically describes these embodiments to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A device for detecting the thickness of road pavement, comprising a concave sliding frame (1), four pulley blocks, a vertical frame (2) and a semicircular protractor (3), wherein the four pulley blocks are respectively arranged at the bottom of the sliding frame (1) and at four corners, the vertical frame (2) is fixedly installed at the center of the sliding frame (1), and a slot (201) is provided at the upper middle section of the vertical frame (2), the semicircular protractor (3) is fixedly installed on the inner wall of the bottom of the slot (201), and the two ends of the semicircular protractor (3) respectively extend to the outside of the vertical frame (2), characterized in that: A leveling mechanism (4) is arranged inside the vertical frame (2), and the leveling mechanism (4) comprises a leveling transverse frame (41), the leveling transverse frame (41) is movably sleeved inside the card slot (201) and hinged at the bottom end outside the semicircular protractor (3), one end of the leveling transverse frame (41) extends to the outside of the sliding frame (1) and is hinged to a detection frame (5), and a measuring mechanism (6) is arranged inside the detection frame (5).

2. A road pavement thickness detection device according to claim 1, characterized in that: The front and rear end surfaces of the other end of the leveling transverse frame (41) are both provided with transverse grooves (42), and the length of the transverse grooves (42) is half the length of the leveling transverse frame (41). The middle sections of the two groups of transverse grooves (42) are slidably connected to a sliding shaft (43), and the front and rear ends of the sliding shaft (43) are connected to a concave card frame (44), and the concave card frame (44) is sleeved on the top of the sliding frame (1).

3. A road pavement thickness detection device according to claim 1, characterized in that: The leveling mechanism (4) further comprises a limit frame (45) of a circular structure, wherein the limit frame (45) is fixedly mounted inside the slide frame (1) at the open end, and the leveling transverse frame (41) is horizontally passed through the middle section inside the limit frame (45), and the inner walls of the front and rear ends of the limit frame (45) are provided with vertical grooves (46) at the upper and lower ends of the leveling transverse frame (41), and the bottom position between the two groups of the vertical grooves (46) at the upper end and the top position between the two groups of the vertical grooves (46) at the lower end are both slidably connected with a double-axis sliding rod (47), and a damping spring shock absorber (48) is commonly connected between each group of the double-axis sliding rods (47) and the corresponding inner wall of the limit frame (45), and a scale line is provided on one side of the vertical groove (46) of the limit frame (45).

4. A road pavement thickness detection device according to claim 1, characterized in that: The measuring mechanism (6) comprises a fixing plate (61), the fixing plate (61) being fixedly mounted at the middle section of the detection frame (5), a motor (62) being arranged at the upper end of the fixing plate (61) located at the inner wall of one side of the detection frame (5), a rotating rod (63) being fixedly mounted on the output shaft of the motor (62), a steering gear (64) being fixedly mounted at both ends of the outside of the rotating rod (63), a limiting cylinder (65) being fixedly mounted at both sides of the front end of the rotating rod (63) on the top surface of the fixing plate (61), and a limiting groove (66) being arranged on the rear end surface of the limiting cylinder (65).

5. A road pavement thickness detection device according to claim 4, characterized in that: The two groups of the limiting cylinders (65) are respectively penetrated by a vertical cylinder 1 (67) and a vertical cylinder 2 (68), and the rear end surfaces of the vertical cylinder 1 (67) and the vertical cylinder 2 (68) are both provided with a tooth groove group (69). The bottom of the vertical cylinder 1 (67) extends to the lower end of the fixed plate (61). A concave plug-in frame (610) is fixedly installed at the inner wall of the bottom of the detection frame (5) and at the upper and lower corresponding positions of the vertical cylinder 1 (67), and a scale line is provided at one side of the front end surface of the concave plug-in frame (610). The bottom of the vertical cylinder 2 (68) extends to the lower end of the limiting cylinder (65) and is provided with a motor 2 (611), and a spiral drill cylinder (612) is fixedly installed at the bottom output end of the motor 2 (611).

6. A road pavement thickness detection device according to claim 5, characterized in that: The spiral drill tube (612) is a hollow structure, and a pressure tube (613) is provided through the bottom tube mouth thereof, a connecting rod (614) is hinged at the top center of the pressure tube (613), and a fan-shaped turntable (615) is hinged at one side of the top surface of the connecting rod (614), and the top center of the fan-shaped turntable (615) is fixedly connected to a motor three (616) provided on the inner wall of one side of the spiral drill tube (612).

7. A road pavement thickness detection device according to claim 1, characterized in that: A positioning groove (7) is provided on one side of the center of the bottom surface of the detection frame (5), and a vertical rod (8) is fixedly installed on the inner wall of the bottom of the detection frame (5) on one side of the positioning groove (7). A cross rod (9) is fixedly installed in the middle section of one side of the vertical rod (8). Double-axis clamping columns (10) are fixedly installed at the upper and lower ends of the front end surface of the vertical rod (8) and at the end of the front end surface of the cross rod (9) away from the vertical rod (8). The spiral drill tube (612) is slidably connected between the three groups of double-axis clamping columns (10), and the spiral drill tube (612) is in contact with the central bearing of the double-axis clamping column (10).

8. A method for using a road pavement thickness detection device according to any one of claims 1 to 7, characterized in that: The method specifically comprises the following steps: Step 1: first, the sliding frame (1) is pushed to a flat road surface, and the detection frame (5) is located on one side of the sliding frame (1) and the upper end of the road surface is measured, and the contact state between the detection frame (5) and the ground and the self-balance state are determined by using the leveling mechanism (4), and the data obtained is the road surface error data; Step 2: After the position of the detection frame (5) is determined, the position of the sliding shaft (43) inside the transverse groove (42) is adjusted by sliding the concave clamping frame (44), that is, the balance state of the leveling transverse frame (41), the detection frame (5) and the measuring mechanism (6) is maintained by moving to the left or right; Step 3: After the position of the detection frame (5) is adjusted, the measuring mechanism (6) is used to drill and measure the road surface to obtain road depth data, and then the road depth data is added or subtracted from the ground error data to obtain the actual road depth; Step 4: Motor 2 (611) drives the auger (612) to rotate downwards for drilling, and motor 3 (616) starts synchronously, and drives the fan-shaped turntable (615) to rotate, and pulls the connecting rod (614) and the pressing cylinder (613) to reciprocate up and down, and presses and tamps the drilling area to keep the hole vertical and unobstructed, so that construction workers can measure and view the internal structure of the road; Step 5: After the drilling of the road surface is completed, the second vertical cylinder (68) pulls the auger cylinder (612) upward, and the outer wall of the auger cylinder (612) rolls and rubs against the inner shafts of the three sets of double-axis clamping columns (10) in turn, which not only assists the auger cylinder (612) to be pulled upward, but also removes the soil blocks remaining on the outer wall of the auger cylinder (612) to keep the surface of the auger cylinder (612) clean, which is convenient for subsequent drilling.

Images