A thickness measuring device for asphalt paving

Abstract

The present invention relates to the technical field of asphalt highway construction, and in particular to a thickness measuring device for asphalt paving. The present invention provides a thickness measuring device for asphalt paving that can conveniently measure the thickness of an asphalt pavement after paving. A thickness measuring device for asphalt paving includes a coring machine, etc., and also includes a guide rod, the guide rod is symmetrically fixed to a support plate, a clamping member is fixed to the side of the telescopic member away from the sliding member, a sliding block is slidably connected to the support frame, and a measuring ruler is fixed to the bottom of the sliding block. The present invention can clamp the core sample by moving the clamping member to the side close to each other, and automatically take the core sample out of the drilled hole without the need for workers to operate with pliers, thereby facilitating workers to perform measurement work, and by moving the measuring ruler to the left, it can assist people in measuring the core sample, without the need for workers to use a tape measure for measurement, thereby improving the convenience of workers in measuring the thickness of the asphalt pavement and improving the thickness measurement efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of asphalt highway construction, in particular to a thickness measuring device for asphalt paving. Background Art

[0002] After the asphalt road is paved, in order to detect the quality of the asphalt road after paving, it is necessary to test the thickness, flatness, anti-skid properties of the paved asphalt, among which the thickness test of the asphalt is extremely important.

[0003] At present, when the thickness of the asphalt pavement after paving is tested, drilling sampling is usually adopted. During the test, the coring machine is first moved to the destination, and the drill barrel of the coring machine is located directly above the sampling point. Then the drill barrel on the coring machine is driven to sample the asphalt pavement. After the drill barrel samples the core sample on the asphalt pavement, the coring machine is moved away from the sampling point. At this time, the core sample is located in the asphalt pavement. Then the worker uses pliers to take the core sample out of the asphalt pavement, and then uses a tape measure to measure the taken out core sample. The length of the core sample is measured, and the measured result is the thickness of the asphalt pavement after paving.

[0004] When the thickness of the asphalt pavement after paving is detected, it is necessary to first use a coring machine to sample the asphalt pavement after paving, and then use pliers to manually take out the core sample from the asphalt pavement, and then use a tape measure to manually measure the taken out core sample. In this way, each time the thickness of the asphalt road after paving is measured, workers are required to manually perform multiple steps and also need to use external tools, so the thickness measurement work is very cumbersome, resulting in a long thickness measurement time and low thickness measurement efficiency. Therefore, a thickness measuring device for asphalt paving is first developed that can conveniently measure the thickness of the asphalt pavement after paving. Summary of the invention

[0005] In order to overcome the shortcomings of using the existing coring machine to drill holes to take samples and measure the thickness of the asphalt pavement after paving, which requires workers to use other tools to operate, and the operation is cumbersome and inconvenient for workers to perform thickness measurement, the present invention provides an asphalt paving thickness measuring device that can conveniently measure the thickness of the asphalt pavement after paving.

[0006] A thickness measuring device for asphalt paving includes a drilling coring machine, a support plate, a drilling sampler, a support member and a support ring, and also includes symmetrically arranged guide rods, which are respectively fixed to the support plates, the guide rods are slidably connected to the sliding members, a reset spring is fixed between the top of the sliding member and the support plate, the sliding member is rotatably connected to a rotating member for extrusion-matching with the drilling sampler, a reset torsion spring is installed between the rotating member and the adjacent sliding member, a telescopic member is fixedly connected to the side of the rotating member close to the sliding member, the telescopic member has a spring inside, a clamping member is fixedly connected to the side of the telescopic member away from the sliding member, a support ring is fixedly connected to a support frame on the side away from the support member, the support frame is slidably connected to a sliding block, and a measuring ruler is fixedly connected to the bottom of the sliding block.

[0007] Optionally, a driving assembly is also included for driving the sliding block to move. The driving assembly is arranged on the drilling sampler, and the driving assembly includes a connecting block. The connecting block is fixedly connected to the top of the drilling sampler, and the connecting block is rotatably connected to a transmission rod. A connecting piece is fixedly connected to the top of the sliding block, and the connecting piece and the transmission rod are rotatably connected on a side away from the connecting block.

[0008] Optionally, an anti-fouling component is also included for preventing sewage from polluting the surrounding asphalt road surface. The anti-fouling component is arranged at the bottom of the guide rod. The anti-fouling component includes a first telescopic rod, which is fixed to the bottom of the guide rod, and a blocking frame is fixed between the bottoms of the symmetrically arranged first telescopic rods.

[0009] Optionally, a protection component for protecting the measuring ruler is also included. The protection component is arranged on a side of the support frame close to the connecting piece. The protection component includes symmetrically arranged wedge blocks. The symmetrically arranged wedge blocks are slidably connected to the right part of the support frame. A stop plate is fixedly connected to the bottom of the wedge block. The connecting piece is fixedly connected to a symmetrically arranged extrusion frame for extrusion cooperation with adjacent wedge blocks.

[0010] Optionally, it also includes symmetrically arranged linear springs for resetting the wedge block, and the symmetrically arranged linear springs are fixed between the wedge block and the support frame.

[0011] Optionally, a supporting assembly for supporting the core sample is also included, the supporting assembly is arranged on a supporting frame, the supporting assembly includes symmetrically arranged rodless cylinders, the symmetrically arranged rodless cylinders are fixed to the supporting frame, the rodless cylinders are slidingly connected to symmetrically arranged moving frames, and supporting members are fixed between the symmetrically arranged moving frames.

[0012] Optionally, it also includes a collecting component for collecting core samples after thickness measurement, the collecting component is arranged on the support member, the collecting component includes symmetrically arranged electric slide rails, the symmetrically arranged electric slide rails are fixedly installed on the support member, the electric slide rails are slidably connected with sliding rods, a second telescopic rod is fixedly connected to the side of the sliding rod away from the electric slide rails, the second telescopic rod is fixedly connected to a pushing block, and a force storage spring is fixedly connected between the pushing block and the adjacent second telescopic rod fixing part.

[0013] Optionally, a collecting frame is also included, and the collecting frame is fixedly mounted on a side of the coring machine away from the supporting plate.

[0014] Optionally, a U-shaped rod is further included for assisting workers to push the coring machine, and the U-shaped rod is fixedly connected to the coring machine.

[0015] Optionally, a pressure spring is further included, and the pressure spring is fixed between the telescopic portion and the fixed portion of the first telescopic rod.

[0016] The beneficial effects of the present invention are as follows: 1. The present invention can clamp the core sample by moving the clamping parts toward one side close to each other, and automatically take the core sample out of the drilled hole without the need for workers to operate with pliers, thereby facilitating workers to perform measurement work, and by moving the measuring ruler to the left, it can assist people in measuring the core sample without the need for workers to use a tape measure for measurement, thereby improving the convenience of workers in measuring the thickness of the asphalt pavement and improving the thickness measurement efficiency.

[0017] 2. The present invention utilizes a blocking frame to automatically block the produced sewage when the drilling sampler is sampling, preventing the sewage from spreading outward and polluting the surrounding asphalt pavement. Workers do not need to lay cloth strips at the sampling point, which further facilitates workers to perform thickness measurement.

[0018] 3. The present invention moves the baffle plates toward one side and merges them, so as to protect the measuring ruler during the sampling process, prevent the values ​​on the measuring ruler from being splashed by sewage, and further prevent workers from not being able to see the values ​​on the measuring ruler, thereby facilitating the workers to use the measuring ruler to measure thickness.

[0019] 4. The present invention supports the core sample by moving the supporting member to the left, so that the core sample can be supported in time after the core sample is taken out, thereby improving the stability of the core sample during later measurement, thereby enhancing the convenience of thickness measurement.

[0020] 5. The present invention can automatically push the measured core sample into the collection frame by moving the push block to the left, eliminating the need for workers to manually collect the measured core sample, thereby further improving the thickness measurement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the rotating part, telescopic part and clamping part of the present invention.

[0023] Figure 3 It is a three-dimensional structural cross-sectional view of the sliding part, rotating part and telescopic part of the present invention.

[0024] Figure 4It is a schematic diagram of the three-dimensional structure of the supporting frame, measuring ruler, sliding block and other components of the present invention.

[0025] Figure 5 It is an enlarged view of the three-dimensional structure at A of the present invention.

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the anti-fouling component of the present invention.

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the protection component of the present invention.

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the wedge block and the baffle plate of the present invention.

[0029] Fig. 9 It is a schematic diagram of the three-dimensional structure of the supporting assembly of the present invention.

[0030] Fig.10 This is a schematic diagram of the three-dimensional structure of the collecting component of the present invention from a first viewing angle.

[0031] Fig.11 This is a schematic diagram of the three-dimensional structure of the collecting component of the present invention from a second viewing angle.

[0032] In the figure: 1. Drilling and coring machine, 11. Collecting frame, 12. Support plate, 13. Drilling sampler, 14. Support member, 15. Support ring, 16. U-shaped rod, 2. Guide rod, 21. Sliding member, 22. Reset spring, 23. Rotating member, 24. Telescopic member, 25. Clamping member, 26. Reset torsion spring, 3. Support frame, 31. Measuring ruler, 32. Sliding block, 33. Connecting member, 34. Connecting block, 35. Transmission rod, 4. First telescopic rod, 41. Pressure spring, 42. Backing frame, 5. Wedge block, 51. Backing plate, 52. Extrusion frame, 53. Linear spring, 6. Rodless cylinder, 61. Moving frame, 62. Support member, 7. Electric slide rail, 71. Sliding rod, 72. Second telescopic rod, 73. Storage spring, 74. Push block. DETAILED DESCRIPTION

[0033] The following descriptions are merely preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention.

[0034] Embodiment 1: A thickness measuring device for asphalt paving, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, it includes a core drilling machine 1, a support plate 12 is fixedly connected to the upper right side of the core drilling machine 1, a borehole sampler 13 is fixedly installed in the middle of the right part of the support plate 12, and the lower part of the borehole sampler 13 is a drill tube, a support member 14 is fixedly connected to the right side of the upper middle part of the core drilling machine 1, a support ring 15 is fixedly connected to the right side of the lower part of the support member 14, the drill tube on the borehole sampler 13 passes through the middle part of the support ring 15, a collecting frame 11 is fixedly installed at the lower part of the core drilling machine 1, and the collecting frame 11 can collect core samples, a U-shaped rod 16 is fixedly connected to the upper left side of the core drilling machine 1, and the U-shaped rod 16 can assist workers in pushing the core drilling machine 1, and a guide rod 2 is fixedly connected to the front and rear parts of the lower right side of the support plate 12, and a sliding member 21 is slidably connected to the guide rod 2, and the top of the sliding member 21 and the lower side of the support plate 12 are connected. A return spring 22 is fixedly connected between the two sliding members 21, and the return spring 22 is wound on the guide rod 2. A rotating member 23 is rotatably connected to the sliding member 21. The rotating member 23 and the drill tube on the drilling sampler 13 are squeezed together. A return torsion spring 26 is fixedly connected between the rotating member 23 and the adjacent sliding member 21, and the return torsion spring 26 is wound on the rotating member 23. A telescopic member 24 is fixedly connected to the lower side of the rotating member 23. The telescopic member 24 has its own spring inside. A clamping member 25 is fixedly connected to the lower side of the telescopic member 24. When the telescopic member 24 is initially normal, the horizontal plane of the clamping member 25 is lower than the horizontal plane of the drilling coring machine 1. A support frame 3 is fixedly connected to the right side of the support ring 15. A sliding block 32 is slidably connected to the middle of the support frame 3, and a measuring ruler 31 is fixedly connected to the bottom of the sliding block 32.

[0035] like Figure 4 and Figure 5 As shown, it also includes a driving assembly for driving the sliding block 32 to move. The driving assembly is arranged at the top of the drill barrel on the drilling sampler 13. The driving assembly includes a connecting block 34. The connecting block 34 is fixedly connected to the top of the drill barrel on the drilling sampler 13. The right part of the connecting block 34 is rotatably connected to a transmission rod 35. The top of the sliding block 32 is fixedly connected to a connecting piece 33. The connecting piece 33 and the lower right side of the transmission rod 35 are rotatably connected.

[0036] When people need to measure the thickness of the asphalt pavement after paving by drilling sampling, they can use the present asphalt paving thickness measuring device for operation, and the specific operation is as follows: initially, the reset torsion spring 26 is in a torsion state, the clamping member 25 is in contact with the ground, the telescopic member 24 is in a contracted state, and the spring in the telescopic member 24 is compressed. First, the core drilling machine 1 is moved to the destination so that the drill barrel on the drilling sampler 13 is located directly above the sampling location, and then the drilling sampler 13 is turned on to drive the drill barrel to move up and down to drill and sample the asphalt pavement after paving. When the drill barrel moves downward and no longer squeezes the rotating member 23, the rotating member 23 will rotate to the side close to each other under the action of the reset torsion spring 26, and then drive the telescopic member When the clamping member 25 swings outward, the clamping member 25 will be squeezed by the asphalt road surface and move upward, and the telescopic member 24 will shrink. At the same time, when the drill tube in the bore sampler 13 moves downward, the drill tube in the bore sampler 13 will also drive the connecting block 34 to move downward. At this time, the connecting block 34 will drive the connecting member 33 through the transmission rod 35 to drive the measuring ruler 31 and the sliding block 32 to move to the right. Then, when the bore sampler 13 finishes sampling, the drill tube in the bore sampler 13 moves upward out of the drilled hole, and the drill tube in the bore sampler 13 squeezes the rotating member 23 to rotate away from each other, and then the rotating member 23 drives the telescopic member 24 and the clamping member 25 to move closer to each other. When the drill tube in the drilling sampler 13 moves upward out of the drilled hole and the clamping member 25 rotates to the top of the hole, the telescopic member 24 will gradually reset under the action of the spring in the telescopic member 24, and then drive the clamping member 25 to move downward, so that the lower part of the clamping member 25 extends into the drilled hole, and the clamping member 25 will clamp the upper end of the core sample. After the clamping member 25 clamps the upper end of the core sample, the drill tube is controlled to continue to move upward through the drilling sampler 13. At this time, since the drill tube in the drilling sampler 13 cannot squeeze the rotating member 23 to rotate, when the drill tube in the drilling sampler 13 continues to move upward, the drill tube in the drilling sampler 13 will drive the sliding member 21, the telescopic member 24, the clamping member 25 and the core sample to move upward through the rotating member 23, so that it can automatically The core sample is taken out from the drilled hole without the need for workers to use pliers to take out the core sample, thereby facilitating the workers to perform thickness measurement. At the same time, when the drill tube in the drilling sampler 13 moves upward, the drill tube in the drilling sampler 13 will also drive the connecting block 34 to move upward, and then drive the connecting piece 33 through the transmission rod 35 to drive the measuring ruler 31 and the sliding block 32 to move to the left, so that the measuring ruler 31 is close to the taken out core sample. Then the worker can obtain the length of the core sample according to the value on the measuring ruler 31, and the obtained core sample length is the thickness of the asphalt pavement after paving. When the thickness measurement is completed, the core sample is removed from between the clamps 25, and then the removed core sample is placed on the collection frame 11 to collect the tested core sample, and then the drilling coring machine 1 is moved away from the sampling location.In summary, the drilling sampling method can be used to measure the thickness of the asphalt pavement after paving, and during the thickness measurement process, workers do not need to use pliers and tape measures to work, which makes it convenient for workers to measure the thickness and improves the thickness measurement efficiency.

[0037] Embodiment 2: Based on embodiment 1, Figure 6 As shown, it also includes an anti-fouling component for preventing sewage from polluting the surrounding asphalt road surface. The anti-fouling component is arranged at the bottom of the guide rod 2, and the anti-fouling component includes a first telescopic rod 4. The number of the first telescopic rods 4 is two, and the two first telescopic rods 4 are respectively fixed to the bottom of the guide rod 2. A resist frame 42 is fixed between the lower sides of the two first telescopic rods 4, and pressure springs 41 are fixed between the telescopic part and the fixed part of the first telescopic rod 4. The pressure springs 41 are all wound on the first telescopic rod 4. The pressure springs 41 can make the resist frame 42 fit tightly against the asphalt road surface, thereby improving the resisting effect of the resist frame 42.

[0038] When the coring machine 1 takes samples from the asphalt pavement, the drill barrel in the coring machine 1 will heat up during the sampling process. In order to ensure the sampling effect of the coring machine 1, it is necessary to spray cold water on the drill barrel in the coring machine 1 to cool the drill barrel in the coring machine 1. Therefore, when the coring machine 1 takes samples, a large amount of sewage will be generated at the sampling site. In order to prevent the surrounding road surface from being polluted by sewage, workers need to manually lay cloth strips at the sampling site to prevent the sewage from spreading outward. In this way, workers need to manually lay cloth strips every time the thickness is measured, and the operation is cumbersome. In order to shorten the thickness measurement time, an anti-fouling component can be used to block the sewage. The specific operation is as follows: When the coring machine 1 moves to the destination, the blocking frame 42 will frame the sampling site, and then When the drilling sampler 13 is sampling the asphalt pavement, the resistance frame 42 will resist the sewage expanding outward, so as to prevent the sewage from polluting the surrounding asphalt pavement. After the sampling is completed, when the workers need to clean the sewage, they first clean the sewage in the resistance frame 42. When most of the sewage in the resistance frame 42 has been cleaned, the resistance frame 42 is manually moved upward, and the first telescopic rod 4 contracts, the pressure spring 41 is compressed, and then the remaining sewage is cleaned. When the cleaning is completed, the resistance frame 42 can be released. Under the action of the pressure spring 41, the first telescopic rod 4 will extend, and then drive the resistance frame 42 to move downward. In summary, the resistance frame 42 can be used to resist the sewage during sampling, and there is no need for workers to lay cloth strips for resistance, thereby improving the work efficiency of workers.

[0039] like Figure 7 and Figure 8As shown, a protection component for protecting the measuring ruler 31 is also included. The protection component is arranged on the right part of the support frame 3. The protection component includes a wedge block 5. There are two wedge blocks 5. The two wedge blocks 5 are respectively slidably connected to the right part of the support frame 3. The two wedge blocks 5 are symmetrically arranged on the front and rear sides. The bottom of the wedge blocks 5 is fixedly connected with a stop plate 51. The stop plate 51 is located on the left side of the measuring ruler 31. The two stop plates 51 are merged together. The front and rear sides of the upper part of the connecting member 33 are fixedly connected with an extrusion frame 52 for extrusion matching with the adjacent wedge blocks 5.

[0040] like Figure 7 As shown, it also includes a linear spring 53, the number of which is two. The two linear springs 53 are respectively fixed between the outer side of the wedge block 5 and the support frame 3. The linear springs 53 are both wound on the support frame 3. The linear springs 53 can make the wedge block 5 automatically move and reset.

[0041] When the borehole sampler 13 samples the asphalt pavement, the produced sewage may splash onto the measuring ruler 31. In order to prevent the values ​​on the measuring ruler 31 from being covered by the sewage, the blocking plate 51 can be used to block the splashed sewage during sampling to protect the measuring ruler 31. The specific operation is as follows: When the borehole sampler 13 samples the asphalt pavement, the blocking plate 51 will protect the measuring ruler 31 to prevent the values ​​on the measuring ruler 31 from being splashed by the sewage. When the connecting piece 33 drives the measuring ruler 31 to move to the left so that the measuring ruler 31 is close to the core sample, the connecting piece 33 will also drive the extrusion frame 52 to move to the left. At this time, the extrusion frame 52 will squeeze the wedge block 5 to the side away from each other, and then the linear spring 53 is compressed, and then the wedge block 5 The retaining plate 51 is driven to move toward the side away from each other, so that the retaining plate 51 no longer abuts against the left side of the measuring ruler 31, so that the measuring ruler 31 can avoid being blocked when moving to the left. Subsequently, when the extrusion frame 52 moves away from the wedge block 5 to the left, under the action of the linear spring 53, the wedge block 5 will drive the retaining plate 51 to move toward the side close to each other. Subsequently, when the connecting member 33 drives the measuring ruler 31 to move to the right, the connecting member 33 will also drive the extrusion frame 52 to move to the right. When the extrusion frame 52 moves to the right and contacts with the wedge block 5, the extrusion frame 52 will continue to squeeze the wedge block 5 toward the side away from each other. In summary, during the sampling process, the retaining plate 51 can be used to protect the measuring ruler 31 to prevent the value on the measuring ruler 31 from being covered by sewage.

[0042] like Fig. 9 As shown, it also includes a supporting assembly for supporting the core sample, the supporting assembly is arranged on the supporting frame 3, and the supporting assembly includes a rodless cylinder 6. The number of the rodless cylinders 6 is two, and the two rodless cylinders 6 are respectively fixed to the front and rear sides of the supporting frame 3. The rodless cylinders 6 are slidably connected to the moving frame 61, and the supporting member 62 is fixed between the lower left side of the moving frame 61.

[0043] After the clamping member 25 takes the core sample out of the drilled hole, since the clamping member 25 only clamps the upper end of the core sample, there is a risk that the core sample may fall downward during the measurement process. In order to prevent the core sample from falling downward and breaking, the supporting member 62 can be used to support the taken out core sample. The specific operation is as follows: When the core sample is taken out upward, the core sample will be located above the supporting member 62. At this time, the worker turns on the rodless cylinder 6 again, and controls the movable frame 61 through the rodless cylinder 6 to drive the supporting member 62 to move to the left, so that the supporting member 62 supports the core sample. In this way, the taken out core sample can be supported, the stability of the core sample is improved, and people are assisted in measuring the core sample. When the measurement is completed, the movable frame 61 is controlled by the rodless cylinder 6 to drive the supporting member 62 to move to the right. In summary, the taken out core sample can be automatically supported, and the stability of the core sample during measurement is improved.

[0044] like Fig.10 and Fig.11 As shown, it also includes a collecting component for collecting core samples after thickness measurement. The collecting component is arranged on the support member 14, and the collecting component includes an electric slide rail 7. There are two electric slide rails 7. The two electric slide rails 7 are respectively fixedly installed on the front and rear sides of the lower part of the support member 14. The electric slide rails 7 are slidably connected with sliding rods 71 ​​through electric sliders. The right side of the sliding rods 71 ​​close to each other is fixedly connected with a second telescopic rod 72. The second telescopic rods 72 close to each other are fixedly connected with a pushing block 74. A force storage spring 73 is fixedly connected between the pushing block 74 and the adjacent second telescopic rod 72 fixed part. The force storage spring 73 is wound around the second telescopic rod 72.

[0045] When the worker needs to collect the core sample into the collection frame 11, the collection assembly can be used for operation. The specific operation is as follows: when the measurement is completed and the supporting member 62 supports the core sample, the electric slide rail 7 is opened, and the sliding rod 71, the second telescopic rod 72 and the pushing block 74 are controlled by the electric slide rail 7 to move to the left, so that the pushing block 74 wraps the core sample. At this time, the core sample will squeeze the pushing block 74 to move away from each other, and then the second telescopic rod 72 will retract, and the storage spring 73 will be compressed. When the pushing block 74 wraps the core sample, the supporting member 62, the sliding rod 71, the second telescopic rod 72 and the pushing block 74 are controlled to move to the left together When the pushing block 74 is moved to the left, the pushing block 74 will push the core sample to the left of the clamping member 25. When the supporting member 62 moves to the leftmost position, the pushing block 74 will continue to move to the left, so the pushing block 74 will push the core sample to the left onto the collecting frame 11. When the core sample is pushed onto the collecting frame 11 and the core sample no longer squeezes the pushing block 74, under the action of the force storage spring 73, the pushing block 74 will move toward the side close to each other, and then the second telescopic rod 72 will extend, and then the sliding rod 71, the second telescopic rod 72 and the pushing block 74 will move to the right through the electric slide rail 7. In summary, the measured core sample can be automatically collected into the collecting frame 11.

[0046] Although the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art having benefit of this disclosure will appreciate that various other embodiments can be devised without departing from the scope of the present invention. Accordingly, the scope of the present invention should be limited only by the appended claims.

Claims

1. A thickness measuring device for asphalt paving, comprising a coring machine (1), a support plate (12), a borehole sampler (13), a support member (14) and a support ring (15), characterized in that: The guide rods (2) are symmetrically arranged, the guide rods (2) are respectively fixedly connected to the support plate (12), the guide rods (2) are slidably connected to a sliding member (21), a return spring (22) is installed between the top of the sliding member (21) and the support plate (12), the sliding member (21) is rotatably connected to a rotating member (23) for extrusion-matching with a drilling sampler (13), a return torsion spring (26) is installed between the rotating member (23) and an adjacent sliding member (21), a telescopic member (24) is fixedly connected to a side of the rotating member (23) close to the sliding member (21), the telescopic member (24) has a spring inside, a clamping member (25) is fixedly connected to a side of the telescopic member (24) away from the sliding member (21), a support ring (15) is fixedly connected to a support frame (3) on a side away from the support member (14), the support frame (3) is slidably connected to a sliding block (32), and a measuring ruler (31) is fixedly connected to the bottom of the sliding block (32); The invention also includes a driving assembly for driving the sliding block (32) to move. The driving assembly is arranged on the borehole sampler (13). The driving assembly includes a connecting block (34). The connecting block (34) is fixedly connected to the top of the borehole sampler (13). The connecting block (34) is rotatably connected to a transmission rod (35). A connecting piece (33) is fixedly connected to the top of the sliding block (32). The connecting piece (33) and the transmission rod (35) are rotatably connected at a side away from the connecting block (34).

2. The asphalt paving thickness measuring device according to claim 1, characterized in that: It also includes an anti-fouling component for preventing sewage from polluting the surrounding asphalt road surface. The anti-fouling component is arranged at the bottom of the guide rod (2). The anti-fouling component includes symmetrically arranged first telescopic rods (4). The symmetrically arranged first telescopic rods (4) are respectively fixed to the bottoms of adjacent guide rods (2). A blocking frame (42) is fixed between the bottoms of the symmetrically arranged first telescopic rods (4).

3. The asphalt paving thickness measuring device according to claim 2, characterized in that: It also includes a pressure spring (41), which is fixed between the telescopic portion and the fixed portion of the first telescopic rod (4).

4. The asphalt paving thickness measuring device according to claim 3, characterized in that: The invention also comprises a protection component for protecting the measuring ruler (31), the protection component being arranged on a side of the support frame (3) close to the connecting member (33), the protection component comprising symmetrically arranged wedge blocks (5), the symmetrically arranged wedge blocks (5) being slidably connected to the right part of the support frame (3), a stop plate (51) being fixedly connected to the bottom of the wedge blocks (5), and a symmetrically arranged extrusion frame (52) being fixedly connected to the connecting member (33) for extrusion-matching with adjacent wedge blocks (5).

5. The asphalt paving thickness measuring device according to claim 4, characterized in that: It also includes symmetrically arranged linear springs (53) for resetting the wedge block (5), and the symmetrically arranged linear springs (53) are fixedly connected between the wedge block (5) and the support frame (3).

6. The asphalt paving thickness measuring device according to claim 5, characterized in that: It also includes a supporting assembly for supporting the core sample, the supporting assembly is arranged on the supporting frame (3), the supporting assembly includes a rodless cylinder (6), the rodless cylinder (6) is fixedly connected to the supporting frame (3), the rodless cylinder (6) is slidably connected to a movable frame (61), and the movable frame (61) is fixedly connected to a supporting member (62).

7. The asphalt paving thickness measuring device according to claim 6, characterized in that: The invention also comprises a collecting assembly for collecting the core sample after thickness measurement, the collecting assembly being arranged on the support member (14), the collecting assembly comprising symmetrically arranged electric slide rails (7), the symmetrically arranged electric slide rails (7) being fixedly mounted on the support member (14), the electric slide rails (7) being slidably connected to a sliding rod (71), a second telescopic rod (72) being fixedly connected to a side of the sliding rod (71) away from the electric slide rail (7), the second telescopic rod (72) being fixedly connected to a pushing block (74), and a force storage spring (73) being fixedly connected between the pushing block (74) and a fixing portion of the adjacent second telescopic rod (72).

8. The asphalt paving thickness measuring device according to claim 1, characterized in that: It also includes a collecting frame (11), which is fixedly mounted on a side of the coring machine (1) away from the supporting plate (12).

9. The asphalt paving thickness measuring device according to claim 1, characterized in that: It also includes a U-shaped rod (16) for assisting workers in pushing the core drilling machine (1), and the U-shaped rod (16) is fixedly connected to the core drilling machine (1).

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