Asphalt concrete pavement sampling device for road engineering and sampling method thereof

Abstract

The invention relates to the technical field of pavement sampling devices, and discloses an asphalt concrete pavement sampling device for road engineering and a sampling method.The asphalt concrete pavement sampling device comprises a sampling trolley, a lifting assembly and a sampling assembly, the lifting assembly is arranged at the left end of a panel of the sampling trolley, and the sampling assembly is arranged on the lifting assembly; a repairing assembly is arranged on the right side of the sampling assembly, and a working limiting groove is formed in the center of the sampling trolley panel. Working parameters of the sampling assembly are set at the control end, a sampling program is initialized, the lifting assembly controls the sampling assembly to sample the constructed asphalt pavement, the device can adjust the lifting height or replace drill bits of different specifications according to specific requirements, the sampling operation depth and the sample specification are changed, and the sampling efficiency is improved. A water outlet groove is formed, so that water spraying treatment can be conveniently performed on the sampling drill bit and a sampling position, adhesion caused by heating of asphalt is avoided, and it is guaranteed that an asphalt sample can be rapidly pushed out.

Description

Technical Field

[0001] The invention relates to the field of pavement sampling device design, and in particular to an asphalt concrete pavement sampling device for road engineering and a sampling method thereof. Background Art

[0002] Road engineering includes the design and planning of roads, the preparation of materials and equipment, the construction operations, and the completion of cleaning and inspection. After the construction is completed, it is necessary to clean up the construction site and check the road quality and installation status; in order to ensure the quality of the road surface, multiple acceptance tests are required, including compaction, flatness, thickness, etc.; during the inspection process, it is necessary to sample and analyze on the road surface through drilling operations to ensure that the road surface quality meets the engineering requirements. After the sampling device is completed, the sample will remain inside the borehole. In addition, the gap between the cylindrical sample and the borehole is too small, so it is difficult to take out the sample. The existing technology first presses the pressing lever, and the other end of the pressing lever rises and pulls the connecting wire. The other end of the connecting wire drives the fixed tooth to rotate with the rotating pin as the center of the circle, and then the fixed tooth is inserted into the sample to achieve fixed bite. Finally, the drill tube can be moved to take out the internal sample together to avoid the sample being left inside the borehole. However, this method will cause the temperature of the outer side of the asphalt sample to change and melt and adhere to the inner wall of the sampling component, which will cause the sample to be stuck inside the sampling tube. Therefore, an asphalt concrete pavement sampling device and a sampling method for road engineering are proposed. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In order to solve at least one aspect of the above problems, the present invention first provides an asphalt concrete pavement sampling device and a sampling method for road engineering, which is configured to include a sampling component and a lifting component to cooperate with flowing water sampling to reduce the temperature of the sample side and avoid adhesion to the drill bit. The sample is quickly pushed out using a removal component to reduce the difficulty of sampling and improve the sampling efficiency.

[0005] (II) Technical solution

[0006] In order to solve the technical problem, the present invention provides an asphalt concrete pavement sampling device for road engineering, including a sampling trolley, a lifting assembly and a sampling assembly. A lifting assembly is provided at the left end of the sampling trolley panel, a sampling assembly is provided on the lifting assembly, a repair assembly is provided on the right side of the sampling assembly, a working limiting groove is provided in the center of the sampling trolley panel, and a water tank is provided on the right side of the working limiting groove.

[0007] As a preferred solution of the present invention, the sampling component includes a transmission frame, a sampling motor is provided at the bottom of the transmission frame, a connecting limit frame is provided at the bottom of the right end of the transmission frame, a protective sleeve is provided at the bottom of the connecting limit frame, an extension shell is provided at the bottom of the protective sleeve, an electric drill connecting frame is provided at the bottom of the extension shell, an electric drill assembly is provided at the bottom of the electric drill connecting frame, and a shock absorbing assembly is provided at the connection between the electric drill assembly and the electric drill connecting frame.

[0008] As a preferred solution of the present invention, a limiting sleeve is provided on the top of the electric drill connecting frame, a rotating shaft is provided in the inner cavity of the limiting sleeve, a connecting seat is provided at the bottom of the rotating shaft, a plurality of first connecting screw holes are evenly provided on the connecting seat, a built-in anti-slip frame is provided on the inner side of the top of the connecting seat, a micro electric cylinder is provided in the center of the inner side of the built-in anti-slip frame, and a disengagement push plate is provided at the bottom of the micro electric cylinder.

[0009] As a preferred solution of the present invention, the electric drill assembly includes a drill bit, a plurality of cutting drill blades are evenly arranged on the bottom panel of the drill bit, a plurality of water flow grooves are arranged on the edge of the drill bit, a sample discharge outlet is arranged in the center of the drill bit, and second connecting screw holes are respectively arranged at the positions of the first connecting screw holes corresponding to the drill bit, and a group of mounting bolts are respectively arranged on each group of upper and lower corresponding first connecting screw holes and second connecting screw holes.

[0010] Furthermore, two groups of high-pressure nozzles are obliquely provided on the bottom wall plate of the electric drill connecting frame, and the output ports of the high-pressure nozzles are arranged corresponding to the water flow trough.

[0011] Furthermore, the shock absorbing assembly includes several groups of first buffer springs, which are arranged on the inner side of the bottom of the connecting seat, and several groups of second buffer springs are arranged on the mounting panel of the connecting seat, and the top of the second buffer spring abuts against the top of the connecting seat.

[0012] Furthermore, a rubber buffer ring is provided at the connection between the top outer end of the connecting seat and the rotating shaft, and an extended buffer frame is provided on the top of the rubber buffer ring, and the extended buffer frame abuts against the top panel of the electric drill connecting frame.

[0013] Furthermore, two sets of drag rods are provided at the left end of the sampling trolley, and a set of locking universal wheels are respectively provided at the four corners of the bottom of the sampling trolley.

[0014] Furthermore, the lifting assembly includes a locking and positioning frame, two groups of lifting guide rods are provided on the locking and positioning frame, a first lifting seat is provided on the lifting guide rod, a second lifting seat is provided above the first lifting seat, a top mounting seat is provided on the top of the lifting guide rod, a lifting motor is provided on the top mounting seat, a screw rod is provided at the output end of the lifting motor, the screw rod passes through the second lifting seat and the first lifting seat and is connected to the locking and positioning frame.

[0015] Furthermore, the repair component includes a glue storage bin, and the glue storage bin is provided with installation slots at the left and right ends of the sampling cart panel respectively, a glue outlet bin is provided at the bottom of the glue storage bin, a boosting valve is provided on the right side of the glue outlet bin, a telescopic frame is provided at the output end of the boosting valve, a glue spray port is provided at the output end of the telescopic frame, a heating rack is provided at the right end of the glue storage bin, and a heating rod is provided inside the heating rack.

[0016] Furthermore, a group of independent additive storage bins are respectively provided at the front and rear ends of the glue storage bin, and independent flow control valves are respectively provided at the bottom of the two groups of additive storage bins. The bottom of the flow control valves are respectively provided with flow guide pipes, and the flow guide pipes are respectively embedded in the glue outlet bins.

[0017] The present invention also provides an asphalt concrete sampling method, which is applied to the above-mentioned asphalt concrete pavement sampling device, and its operation process is as follows:

[0018] S1. Pull the sampling trolley to the road surface to be sampled and lock it, enter the target sampling depth on the control panel, initialize the sampling device, and turn on the repair device and water spray switch;

[0019] S2, the lifting motor controls the first lifting seat and the second lifting seat to move down to a suitable height, the sampling motor drives the cutting drill bit to rotate at a high frequency in a directional manner, and the bottom edge of the cutting drill bit contacts the asphalt road surface to be sampled;

[0020] S3, the sampling motor drives the cutting drill to rotate at high speed, quickly cuts the asphalt pavement and extends downward, and the asphalt sample that has been cut is temporarily stored between the cutting drills;

[0021] S4, the lifting motor rotates in the opposite direction, the screw rod reverses, drives the sampling assembly and the asphalt sample to move upward, the telescopic frame moves to the right, and the glue spraying port is aligned with the road surface sampling point for glue spraying;

[0022] S5. Remove the sampling cart from the sampling road surface, and the staff will flatten the glue at the gap in the road surface to complete the repair of the sampling road surface.

[0023] (III) Beneficial effects

[0024] 1. The present invention provides an asphalt concrete pavement sampling device for road engineering and a sampling method thereof. The device sets the working parameters of the sampling component at the control end, initializes the sampling program, and controls the sampling component to sample the completed asphalt pavement. The device can adjust the lifting height or replace drill bits of different specifications according to specific needs, change the depth of the sampling operation and the sample specifications, and adapt to different detection needs. A water outlet is provided to facilitate water spraying on the sampling drill bit and the sampling position, which can instantly cool down the cutting drill bit and the asphalt sample, reduce the negative impact of the height generated by the sampling operation on the drill bit component and the asphalt sample, avoid adhesion of the asphalt due to heat, and ensure that the asphalt sample can be quickly pushed out.

[0025] 2. The present invention arranges multiple groups of inclined spiral cutting drill bits at the bottom of the drill bit, and each group of cutting drill bits is provided with a cutting inclination angle at the bottom. The irregular edges of the cutting inclination angle can quickly cut into the asphalt block. The cutting angle can reduce the friction between the drill bit and the asphalt block during sampling, reduce the wear of the cutting drill bit, avoid its breakage, and extend its service life. Gaps are provided between the multiple groups of cutting drill bits, and asphalt debris ground off during the sampling process can flow out from the gaps, avoiding the debris from being retained and affecting subsequent sampling operations, and facilitating the rapid embedding of samples under the drill bit.

[0026] 3. The scheme of the present invention sets a working limit groove to limit the sampling space, and the bottom of the working limit groove extends to 2 cm above the road surface, which can effectively prevent debris from splashing, cooperate with the water spray component to intercept and sink the sampling debris, and set a repair device to immediately use colloid to repair the sampling gaps of the asphalt pavement to avoid affecting the road quality due to sampling operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic structural diagram of a road surface sampling device according to an embodiment of the present invention;

[0028] Figure 2 It is a schematic diagram of the installation structure of the sampling component of the road surface sampling device according to an embodiment of the present invention;

[0029] Figure 3 A cross-sectional view of an electric drill connection frame of a road surface sampling device according to an embodiment of the present invention;

[0030] Figure 4 A schematic diagram of the installation structure of the shock absorbing assembly of the road surface sampling device according to an embodiment of the present invention;

[0031] Figure 5 A schematic diagram of the structure of a rubber buffer ring of a road surface sampling device according to an embodiment of the present invention;

[0032] Figure 6 It is a schematic structural diagram of an electric drill assembly of a road surface sampling device according to an embodiment of the present invention;

[0033] Figure 7 It is a schematic diagram of the installation structure of the repair component of the road surface sampling device according to an embodiment of the present invention;

[0034] Figure 8 This is a working flow chart of the road surface sampling device according to an embodiment of the invention.

[0035] Description of reference numerals:

[0036] 1 is the sampling trolley, 2 is the drag rod, 3 is the locking universal wheel, 4 is the lifting component, 41 is the locking positioning frame, 42 is the lifting guide rod, 43 is the first lifting seat, 44 is the second lifting seat, 45 is the top mounting seat, 46 is the lifting motor, 47 is the screw rod, 5 is the sampling component, 51 is the transmission frame, 52 is the sampling motor, 53 is the connection limit frame, 54 is the protective sleeve, 55 is the extension shell, 56 is the electric drill connection frame, 561 is the limit sleeve, 562 is the rotating shaft, 563 is the connecting seat, 564 is the built-in anti-slip frame, 565 is the micro electric cylinder, 566 is the ejection push plate, 567 is the screw rod, 568 is the screw rod, 569 is the screw rod, 570 is the screw rod, 571 is the screw rod, 572 is the screw rod, 573 is the screw rod, 574 is the screw rod, 575 is the screw rod, 576 is the screw rod, 577 is the screw rod, 578 is the screw rod, 579 is the screw rod, 580 is the screw rod, 581 is the screw rod, 582 is the screw rod, 583 is the screw rod, 584 is the screw rod, 585 is the screw rod, 586 is the screw rod, 587 is the screw rod, 588 is the screw rod, 589 is the screw rod, 590 is the screw rod, 600 is the screw rod, 610 is the screw rod, 620 is the screw rod, 621 is the screw rod, 622 is the screw rod, 630 is the screw rod, 641 is the screw rod, 642 is the screw rod, 643 is the screw rod, 5 is a high-pressure nozzle, 57 is an electric drill assembly, 571 is a drill bit, 572 is a mounting bolt, 573 is a water flow trough, 574 is a sample outlet, 575 is a cutting drill piece, 58 is a shock absorbing assembly, 581 is a first buffer spring, 582 is a second buffer spring, 583 is a rubber buffer ring, 584 is an extension buffer frame, 585 is a rubber anti-detachment wall, 6 is a repair assembly, 61 is a glue storage bin, 62 is an additive storage bin, 63 is a flow control valve, 64 is a heating rack, 65 is an installation slot, 66 is a boost valve, 67 is a telescopic rack, 68 is a glue spray port, 7 is a water storage tank, and 8 is a working limit slot. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0038] See also Figures 1 to 7 The embodiment of the present invention provides an asphalt concrete pavement sampling device for road engineering, including a sampling trolley 1, a lifting component 4 and a sampling component 5. The left end of the sampling trolley 1 panel is provided with a lifting component 4, the lifting component 4 is provided with a sampling component 5, the right side of the sampling component 5 is provided with a repair component 6, the center of the sampling trolley 1 panel is provided with a working limit groove 8, and the right side of the working limit groove 8 is provided with a water storage tank 7. The sampling device of this scheme occupies a small space and is easy to move, which can reduce its use restrictions. The sampling trolley 1 is set to fix the installation of the lifting component 4 and the repair component 6, which can realize the support and lifting displacement control of the sampling component 5, and is convenient to change the use state of the sampling component 5. The water storage tank 7 is set to provide cooling and dust protection for the sampling operation, thereby improving the use experience of the sampling device. The working limit groove 8 is set directly below the electric drill component 57, and its groove body extends to a position slightly higher than the bottom of the locking universal wheel 3 by 2 cm, that is, the sampling work is completed in the working limit groove 8, and the wall plate of the working limit groove 8 can be used to limit the debris at the sampling position to prevent the debris from running around.

[0039] See also Figure 2The sampling assembly 5 includes a transmission frame 51, a sampling motor 52 is provided at the bottom of the transmission frame 51, a connecting limit frame 53 is provided at the bottom of the right end of the transmission frame 51, a protective sleeve 54 is provided at the bottom of the connecting limit frame 53, an extension shell 55 is provided at the bottom of the protective sleeve 54, an electric drill connecting frame 56 is provided at the bottom of the extension shell 55, an electric drill assembly 57 is provided at the bottom of the electric drill connecting frame 56, and a shock absorbing assembly 58 is provided at the connection between the electric drill assembly 57 and the electric drill connecting frame 56. A connecting plate is provided at the left end of the sampling motor 52, and the left end of the sampling motor 52 is connected to the first lifting seat 43 through the connecting plate. The left end of the transmission frame 51 is fixedly connected to the second lifting seat 44. The lifting assembly 4 can control the up and down movement of the sampling assembly 5 to change the installation height of the sampling assembly 5. The right end of the transmission frame 51 fixes the setting of the connecting limit frame 53, and the bottom of the connecting limit frame 53 fixes the The installation of the protective sleeve 54, the bottom of the protective sleeve 54 is connected to the electric drill connecting frame 56 through the extension shell 55, the rotating shaft 562 is arranged in the connecting limit frame 53 and its bottom connecting structure, which can directly drive the electric drill assembly 57 to work, and the connecting limit frame 53 and its connecting structure realize the installation of the shell of the electric drill connecting frame 56, which is convenient for the installation and limit control of the water spray assembly, so that the water spray assembly does not conflict with the rotating assembly. A transmission device is provided in the transmission frame 51, and the sampling motor 52 rotates, and the transmission device is controlled to adjust the rotating shaft 562 to rotate at the same frequency, which can drive the electric drill assembly 57 to quickly cut and drill the asphalt pavement to be sampled. During the high-speed rotation of the electric drill assembly 57, the vibration generated when it contacts the ground can be buffered by the shock absorbing assembly 58, thereby reducing the negative impact on the electric drill connecting frame 56 and its connecting structure.

[0040] See also Figure 3 The top of the electric drill connecting frame 56 is provided with a limiting sleeve 561, the inner cavity of the limiting sleeve 561 is provided with a rotating shaft 562, the bottom of the rotating shaft 562 is provided with a connecting seat 563, and the connecting seat 563 is evenly provided with a plurality of first connecting screw holes, the top of the connecting seat 563 is provided with a built-in anti-slip frame 564, the inner center of the built-in anti-slip frame 564 is provided with a micro electric cylinder 565, and the bottom of the micro electric cylinder 565 is provided with a disengagement push plate 566, and the top of the electric drill connecting frame 56 is connected to the extension shell 55 through the limiting sleeve 561 , and establish protection and rotation limit space for the rotating shaft 562. A connecting seat 563 is set in the inner cavity of the electric drill connecting frame 56. The connecting seat 563 establishes the connection between the electric drill connecting frame 56 and the rotating shaft 562, and establishes a fixed connection with the electric drill assembly 57. The inner side of the top of the connecting seat 563 fixes the limit installation of the micro electric cylinder 565 by setting a built-in anti-slip frame 564. The micro electric cylinder 565 can act to move the ejection plate 566 downward to push the asphalt sample in the inner cavity of the electric drill assembly 57 out from between the cutting drill pieces 575.

[0041] See also Figure 6The electric drill assembly 57 includes a drill bit 571, and a plurality of groups of cutting drill blades 575 are evenly arranged on the bottom panel of the drill bit 571. A plurality of groups of water flow grooves 573 are arranged on the edge of the drill bit 571. A sample outlet 574 is arranged in the center of the drill bit 571. Second connecting screw holes are respectively arranged at the positions of the drill bit 571 corresponding to the first connecting screw holes. A group of mounting bolts 572 are respectively arranged on each group of upper and lower corresponding first connecting screw holes and second connecting screw holes. The electric drill assembly 57 is connected to the connecting seat 563 through the drill bit 571 to realize the connection control of the electric drill connecting frame 56 to the electric drill assembly 57, and the setting of the plurality of cutting drill blades 575 is fixed through the bottom panel of the drill bit 571. The cutting drill blades 575 are all inclined from the outside to the inside, and a cutting inclination angle is arranged at the bottom of the drill blades. In the process of driving the drill bit 571 to rotate at high speed, the cutting inclination angle first contacts the asphalt pavement. In the process of the drill bit 571 continuously moving downward driven by the rotating shaft 562, the rest of the cutting drill piece 575 enters the asphalt pavement. A second connecting screw hole is provided to fix the setting of the mounting bolt 572. The top of the mounting bolt 572 is screwed into the first connecting screw hole to establish a fixed installation of the drill bit 571 and the connecting seat 563. A water flow trough 573 is provided to guide the water flow to the bottom of the drill bit 571, which can cool the cutting drill piece 575 while preventing dust from the road surface, reducing the splashing of debris, and improving the safety of sampling. A sample ejection port 574 is provided to provide a downward moving space for the ejection push plate 566, so that the ejection push plate 566 can push out the asphalt sample located between the cutting drill pieces 575.

[0042] Two groups of high-pressure nozzles 567 are obliquely provided on the bottom wall plate of the electric drill connecting frame 56, and the output port of the high-pressure nozzle 567 is arranged corresponding to the water flow trough 573. The shell of the electric drill connecting frame 56 does not rotate with the rotating shaft 562. The electric drill connecting frame 56 fixes the setting of the water pipe connected to the water tank 7. The water pipe is connected to the two groups of high-pressure nozzles 567, which can provide high-pressure water flow to the water flow trough 573, cool the cutting drill bit 575, and avoid the fragments generated by cutting from splashing everywhere, thereby ensuring the safe use of the sampling device.

[0043] See also Figure 4 The shock absorbing assembly 58 includes a plurality of groups of first buffer springs 581, the first buffer springs 581 are arranged on the inner side of the bottom of the connecting seat 563, and a plurality of groups of second buffer springs 582 are arranged on the mounting panel of the connecting seat 563. The top of the second buffer spring 582 abuts against the top of the connecting seat 563. The first buffer spring 581 can reduce the impact of the vibration generated by the drill bit 571 on the bottom panel of the connecting seat 563 during the rotation of the cutting drill piece 575. The second buffer spring 582 can reduce the impact on the structural stability of the connecting seat 563 itself, and can buffer the negative impact of the force on the cutting drill piece 575, thereby effectively extending the service life of the cutting drill piece 575.

[0044] See also Figure 4and Figure 5 A rubber buffer ring 583 is provided at the connection between the top outer end of the connecting seat 563 and the rotating shaft 562, and an extended buffer frame 584 is provided on the top of the rubber buffer ring 583. The extended buffer frame 584 is abutted against the top panel of the electric drill connecting frame 56, and the inner end of the extended buffer frame 584 is set as a rubber cavity. The rubber buffer ring 583 is provided to cooperate with the extended buffer frame 584 to establish the support and buffering effect of the connecting seat 563 on the top shell of the electric drill connecting frame 56. The rubber material and cavity setting of the buffer component can effectively reduce the negative impact of the sampling vibration on the rotating shaft 562. A rubber anti-slip wall 585 is provided at the connection between the extended buffer frame 584 and the rotating shaft 562, which can effectively avoid the displacement of the connection between the rotating shaft 562 and the electric drill connecting frame 56, and ensure the setting stability of the connecting seat 563.

[0045] Two sets of drag rods 2 are provided at the left end of the sampling trolley 1, and a handle is provided on the top of the drag rod 2. A set of locking universal wheels 3 are respectively provided at the four corners of the bottom of the sampling trolley 1, and a set of elastic connecting frames are respectively provided at the mounting ends of the locking universal wheels 3. The left end wall panel of the sampling trolley 1 fixes the setting of the two sets of drag rods, and the installation of the handle is established by using the drag rod. The sampling trolley 1 can be pushed and pulled by holding the handle, so that the sampling device has good portability and maneuverability. The locking universal wheels 3 can realize the push-pull and positioning installation of the sampling trolley 1, and cooperate with the elastic connecting frame to enable it to be stably installed on an asphalt road surface with an inclined angle or potholes.

[0046] See also Figure 2 The lifting assembly 4 includes a locking positioning frame 41, on which two sets of lifting guide rods 42 are arranged, on which a first lifting seat 43 is arranged, and above which a second lifting seat 44 is arranged, and on which a top mounting seat 45 is arranged, on which a lifting motor 46 is arranged, and on which a screw rod 47 is arranged at the output end of the lifting motor 46, and which penetrates through the second lifting seat 44 and the first lifting seat 43 and is connected to the locking positioning frame 41. The lifting assembly 4 fixes the locking positioning frame 41 on the setting panel of the sampling trolley 1, so as to realize the limiting support function of the sampling trolley 1 on the lifting assembly 4, and the locking positioning frame 41 is fixedly mounted by the lifting assembly 4. A control frame is provided at the left end of the frame 41, and control keys and control knobs are provided on the control frame, which can be used to adjust the various components of the sampling device. The locking and positioning frame 41 establishes the setting of two groups of lifting guide rods 42 and screw rods 47. The tops of the three groups of rod bodies fix the setting of the top mounting seat 45, and the top mounting seat 45 is used to fix the installation of the lifting motor 46. The first lifting seat 43 and the second lifting seat 44 are connected to the screw rod 47 with inner spiral walls respectively. Under the rotation of the lifting motor 46, the screw rod 47 changes the specific connection position of the two groups of inner spiral walls and the screw rod 47, and adjusts the instant setting height of the sampling component 5, so as to facilitate the sampling operation of road asphalt.

[0047] See also Figure 7 The repair component 6 includes a glue storage bin 61, and the glue storage bin 61 is provided with mounting slots 65 at the left and right ends of the panel of the sampling trolley 1 respectively. A glue outlet bin is provided at the bottom of the glue storage bin 61, and a boost valve 66 is provided on the right side of the glue outlet bin. A telescopic frame 67 is provided at the output end of the boost valve 66, and a glue spraying port 68 is provided at the output end of the telescopic frame 67. A heating rack 64 is provided at the right end of the glue storage bin 61, and a heating rod is provided in the heating rack 64. The glue storage bin 61 is fixedly set on the panel of the sampling trolley 1 through the mounting slot 65, and the glue outlet bin fixes the setting of the boost valve 66. The boost valve 66 establishes a connection with the glue spraying port 68 through the telescopic frame 67. A certain amount of road repair colloid can be stored in the glue storage bin 61, and the heated colloid can be lowered into the glue storage bin 61. After the asphalt sample is dug out from the road surface, the colloid can be sprayed into the asphalt gap through the glue spraying port 68 to repair the road surface.

[0048] A group of independent additive storage bins 62 are respectively provided at the front and rear ends of the glue storage bin 61, and independent flow control valves 63 are respectively provided at the bottom of the two groups of additive storage bins 62. The bottom of the flow control valves 63 are respectively provided with flow guide pipes, which are respectively embedded in the glue outlet bins. The additive storage bins 62 can be provided to add specified additives to the glue in the replenishing path. When the flow control valves 63 are opened, the additives can be guided by the flow guide pipes to the glue outlet bin for mixing and then sprayed out from the glue spraying port 68.

[0049] An asphalt concrete pavement sampling device for road engineering provided in an embodiment of the present invention moves a sampling trolley 1 to a designated location for installation, uses a lifting component 4 to control the lifting of a sampling component 5, cooperates with a sampling motor 52 to control a cutting drill bit 575 to rotate at high speed, quickly drills asphalt samples at designated locations, and repairs the asphalt pavement through a repair component 6, thereby ensuring compliance with sampling operations and reducing the negative impact of potholes on the asphalt pavement.

[0050] See also Figure 8 The present invention also provides an asphalt concrete sampling method, which is applied to the above-mentioned asphalt concrete pavement sampling device, and its operation process is as follows:

[0051] S1. Pull the sampling trolley to the road surface to be sampled and lock it, enter the target sampling depth on the control panel, initialize the sampling device, and turn on the repair device and water spray switch;

[0052] S2, the lifting motor controls the first lifting seat and the second lifting seat to move down to a suitable height, the sampling motor drives the cutting drill bit to rotate at a high frequency in a directional manner, and the bottom edge of the cutting drill bit contacts the asphalt road surface to be sampled;

[0053] S3, the sampling motor drives the cutting drill to rotate at high speed, quickly cuts the asphalt pavement and extends downward, and the asphalt sample that has been cut is temporarily stored between the cutting drills;

[0054] S4, the lifting motor rotates in the opposite direction, the screw rod reverses, drives the sampling assembly and the asphalt sample to move upward, the telescopic frame moves to the right, and the glue spraying port is aligned with the road surface sampling point for glue spraying;

[0055] S5. Remove the sampling cart from the sampling road surface, and the staff will flatten the glue at the gap in the road surface to complete the repair of the sampling road surface.

[0056] Although the disclosure is disclosed as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. An asphalt concrete pavement sampling device for road engineering, characterized in that: The sampling trolley (1) comprises a lifting assembly (4) and a sampling assembly (5); the lifting assembly (4) is provided at the left end of the panel of the sampling trolley (1); the sampling assembly (5) is provided on the lifting assembly (4); a repair assembly (6) is provided on the right side of the sampling assembly (5); a working limit groove (8) is provided in the center of the panel of the sampling trolley (1); and a water storage tank (7) is provided on the right side of the working limit groove (8); The sampling assembly (5) comprises a transmission frame (51), a sampling motor (52) is provided at the bottom of the transmission frame (51), a connection limit frame (53) is provided at the bottom of the right end of the transmission frame (51), a protective sleeve (54) is provided at the bottom of the connection limit frame (53), an extension shell (55) is provided at the bottom of the protective sleeve (54), an electric drill connection frame (56) is provided at the bottom of the extension shell (55), an electric drill assembly (57) is provided at the bottom of the electric drill connection frame (56), and a shock absorbing assembly (58) is provided at the connection between the electric drill assembly (57) and the electric drill connection frame (56); The electric drill connecting frame (56) is provided with a limiting sleeve (561) at the top, a rotating shaft (562) is provided in the inner cavity of the limiting sleeve (561), a connecting seat (563) is provided at the bottom of the rotating shaft (562), a plurality of first connecting screw holes are evenly provided on the connecting seat (563), a built-in anti-slip frame (564) is provided on the inner side of the top of the connecting seat (563), a micro electric cylinder (565) is provided at the center of the inner side of the built-in anti-slip frame (564), and a disengagement push plate (566) is provided at the bottom of the micro electric cylinder (565); The electric drill assembly (57) comprises a drill bit (571), a plurality of groups of cutting drill blades (575) are evenly arranged on the bottom panel of the drill bit (571), a plurality of groups of water flow grooves (573) are arranged on the edge of the drill bit (571), a sample outlet (574) is arranged in the center of the drill bit (571), and second connecting screw holes are respectively arranged at the positions corresponding to the first connecting screw holes of the drill bit (571), and a group of mounting bolts (572) are respectively arranged on each group of upper and lower corresponding first connecting screw holes and second connecting screw holes.

2. The asphalt concrete pavement sampling device for road engineering according to claim 1, characterized in that: Two groups of high-pressure nozzles (567) are obliquely arranged on the bottom wall plate of the electric drill connection frame (56), and the output ports of the high-pressure nozzles (567) are arranged corresponding to the water flow trough (573).

3. The asphalt concrete pavement sampling device for road engineering according to claim 1, characterized in that: The shock absorbing assembly (58) includes a plurality of groups of first buffer springs (581), wherein the first buffer springs (581) are arranged on the inner side of the bottom of the connecting seat (563), and a plurality of groups of second buffer springs (582) are arranged on the mounting panel of the connecting seat (563), and the top ends of the second buffer springs (582) abut against the top of the connecting seat (563).

4. The asphalt concrete pavement sampling device for road engineering according to claim 3, characterized in that: A rubber buffer ring (583) is provided at the connection between the top outer end of the connecting seat (563) and the rotating shaft (562), and an extension buffer frame (584) is provided on the top of the rubber buffer ring (583). The extension buffer frame (584) abuts against the top panel of the electric drill connecting frame (56).

5. The asphalt concrete pavement sampling device for road engineering according to claim 1, characterized in that: Two groups of drag rods (2) are provided at the left end of the sampling trolley (1), and a group of locking universal wheels (3) are respectively provided at the four corners of the bottom of the sampling trolley (1).

6. The asphalt concrete pavement sampling device for road engineering according to claim 1, characterized in that: The lifting assembly (4) comprises a locking and positioning frame (41), two sets of lifting guide rods (42) are arranged on the locking and positioning frame (41), a first lifting seat (43) is arranged on the lifting guide rod (42), a second lifting seat (44) is arranged above the first lifting seat (43), a top mounting seat (45) is arranged on the top of the lifting guide rod (42), a lifting motor (46) is arranged on the top mounting seat (45), a screw rod (47) is arranged at the output end of the lifting motor (46), and the screw rod (47) passes through the second lifting seat (44) and the first lifting seat (43) and is connected to the locking and positioning frame (41).

7. The asphalt concrete pavement sampling device for road engineering according to claim 1, characterized in that: The repair component (6) comprises a glue storage bin (61), and the glue storage bin (61) is provided with mounting slots (65) at the left and right ends of the panel corresponding to the sampling trolley (1), respectively; a glue outlet bin is provided at the bottom of the glue storage bin (61), a booster valve (66) is provided on the right side of the glue outlet bin, a telescopic frame (67) is provided at the output end of the booster valve (66), and a glue spraying port (68) is provided at the output end of the telescopic frame (67), and a heating frame (64) is provided at the right end of the glue storage bin (61), and a heating rod is provided inside the heating frame (64).

8. The asphalt concrete pavement sampling device for road engineering according to claim 7, characterized in that: A group of independent additive storage bins (62) are respectively provided at the front and rear ends of the glue storage bin (61), and independent flow control valves (63) are respectively provided at the bottom of the two groups of additive storage bins (62). A flow guide pipe is respectively provided at the bottom of the flow control valve (63), and the flow guide pipe is respectively embedded in the glue outlet bin.

9. A method for sampling asphalt concrete, characterized in that: The asphalt concrete pavement sampling device for road engineering as claimed in any one of claims 1 to 8 has the following operation process: S1. Pull the sampling trolley to the road surface to be sampled and lock it, enter the target sampling depth on the control panel, initialize the sampling device, and turn on the repair device and water spray switch; S2, the lifting motor controls the first lifting seat and the second lifting seat to move down to a suitable height, the sampling motor drives the cutting drill bit to rotate at a high frequency in a directional manner, and the bottom edge of the cutting drill bit contacts the asphalt road surface to be sampled; S3, the sampling motor drives the cutting drill to rotate at high speed, quickly cuts the asphalt pavement and extends downward, and the asphalt sample that has been cut is temporarily stored between the cutting drills; S4, the lifting motor rotates in the opposite direction, the screw rod reverses, drives the sampling assembly and the asphalt sample to move upward, the telescopic frame moves to the right, and the glue spraying port is aligned with the road surface sampling point for glue spraying; S5. Remove the sampling cart from the sampling road surface, and the staff will flatten the glue at the gap in the road surface to complete the repair of the sampling road surface.

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