A highway detection coring device

Abstract

The present application relates to the technical fields of highway detection sampling, and discloses a highway detection coring device, which comprises a frame body, a drilling driving mechanism, a drilling cylinder and a pressure feeding driving mechanism are arranged on the frame body, the drilling driving mechanism drives the drilling cylinder to rotate, further comprising a displacement mechanism, a reaming drilling cylinder, a coring cylinder and a lifting frame, the displacement mechanism comprises a motor one and a center table, the motor one is in driving connection with the center table when the lifting frame is lifted to the highest point, an outer ring table is arranged on the bottom outer side of the center table, three cylinder protection ring tables are uniformly arranged on the outer ring table, the drilling cylinder, the reaming drilling cylinder and the coring cylinder are respectively arranged in the cylinder protection ring tables, the drilling driving mechanism comprises a motor two and a driving shaft, the motor two drives the driving shaft to rotate on the lifting frame, a driving table is arranged at the bottom of the driving shaft, and the driving table is in driving connection with the drilling cylinder, the reaming drilling cylinder and the coring cylinder, the present application solves the problems of easy damage of the sample core and low operation efficiency, and realizes integrated and continuous operation of drilling, reaming and coring.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of highway detection sampling, in particular to a highway detection coring device. BACKGROUND

[0002] Highway sampling is a key link for evaluating the strength of pavement structure, material performance and construction quality. The highway is usually composed of three main structures, namely surface layer, base layer and cushion layer, and the soil foundation is below the cushion layer. The surface layer is asphalt concrete or cement concrete, the base layer is gravel mixed with asphalt or cement, and the cushion layer is mixed with natural sand and gravel and slag. The underground core sample can be obtained by using a coring machine, which can effectively judge the integrity of the highway base layer and surface layer, and provide an important basis for maintenance decision and quality detection.

[0003] The existing highway detection coring machine is composed of a simple frame, a rotating mechanism, a lifting mechanism and a drill cylinder. The drill cylinder rotates downward into the highway, and when it reaches the appropriate depth, the drill cylinder is lifted. The sample core is in the drill cylinder or left in the drill hole. After coring, the sample core can be taken out only after the drill cylinder is manually disassembled. The operation is complicated and the sample core is easily broken due to knocking and other actions. If the sampling requirement reaches the soil foundation position, the sand and gravel at the base layer will be loose and fall off when the drill cylinder rises, which makes it difficult to ensure the integrity of the sample core. The sample core left in the drill hole needs to be taken out manually with tools, which is relatively laborious. SUMMARY

[0004] The technical problem to be solved by the present application is to overcome the above difficulties and provide a highway detection coring device.

[0005] To solve the above technical problems, the technical solution provided by the present application is as follows: a highway detection coring device, comprising a frame, a drilling driving mechanism, a drill cylinder and a pressure feeding driving mechanism are arranged on the frame. The drilling driving mechanism drives the drill cylinder to rotate, and the pressure feeding driving mechanism drives the drill cylinder to move up and down.

[0006] Further comprising a displacement mechanism, an expansion drill cylinder, a coring cylinder and a lifting frame. The displacement mechanism comprises a motor one fixed on the lifting frame and a central table rotatably arranged on the lifting frame. When the lifting frame is lifted to the highest point, the motor one is in transmission connection with the central table. An outer ring table is arranged on the bottom outer side of the central table. Three cylinder protection ring tables are uniformly arranged on the outer ring table. The drill cylinder, the expansion drill cylinder and the coring cylinder are arranged in the cylinder protection ring tables respectively. The pressure feeding driving mechanism drives the lifting frame to move up and down in the frame. The drilling driving mechanism is arranged on the lifting frame. The drilling driving mechanism comprises a motor two and a driving shaft. The motor two drives the driving shaft to rotate on the lifting frame. A driving table is arranged at the bottom of the driving shaft. The driving table is in transmission connection with the drill cylinder, the expansion drill cylinder and the coring cylinder respectively.

[0007] As the improvement: the top of the drive table is provided with a spline shaft, the bottom of the drive shaft is provided with a spline groove matched with the spline shaft, a spring is arranged between the drive table and the bottom of the drive shaft, the top of the drill cylinder is provided with a top plate one, the top plate one is provided with a transmission table one, the top of the reaming drill cylinder is provided with a top plate two, the top plate two is provided with a transmission table two, the core taking cylinder comprises a cylinder body, the top of the cylinder body is provided with a top plate three, the top of the top plate three is rotatably provided with a transmission table three, the bottom of the top plate one, the top plate two and the top plate three is in contact with the protection cylinder ring table, and the transmission table one, the transmission table two and the transmission table three are respectively in driving connection with the drive table.

[0008] As the improvement: the bottom of the drive table is provided with a cross slot, the outer side ring table of the cross slot is provided with an inclined groove, the inclined groove is provided with a clamping groove, the top of the transmission table one and the transmission table two is provided with an inclined table one matched with the inclined groove, the inclined table one is provided with a clamping table, the top of the transmission table one and the transmission table two is provided with a cross insertion table matched with the cross slot, and the top of the transmission table three is provided with an inclined table two matched with the inclined groove.

[0009] As the improvement: the bottom of the reaming drill cylinder is provided with a plurality of spiral digging teeth and a hollow groove, a plurality of spiral grooves are arranged on the outer wall of the reaming drill cylinder, the bottom of the spiral groove is communicated with the hollow groove, and the top plate two is provided with an earth outlet communicated with the spiral groove.

[0010] As the improvement: the core taking cylinder further comprises a transmission rod, the inner side of the cylinder body is provided with a hollow groove, the transmission rod is rotatably arranged in the hollow groove, the top of the transmission rod is provided with a gear one penetrating through the top plate three, the bottom of the transmission table three is provided with a gear two engaged with the gear one, the bottom of the transmission rod is provided with an arc-shaped plate, the inner side of the bottom of the hollow groove is provided with a ring groove, and the arc-shaped plate is inserted into the bottom of the sample core after penetrating through the ring groove.

[0011] As the improvement: the outer side of the cylinder body is provided with a limiting sliding groove, and the inner side of the protection cylinder ring table where the core taking cylinder is arranged is provided with a limiting table in sliding connection with the limiting sliding groove.

[0012] As the improvement: the top of the center table is provided with a center rod, the outer side of the top of the center rod is uniformly provided with a same number of positioning tables as the protection cylinder ring table, the inner side of the frame body is provided with a positioning frame, and the inner side of the positioning frame is provided with a positioning groove in sliding connection with the positioning table.

[0013] As the improvement: the pressure driving mechanism comprises a third motor and a second threaded column, the third motor drives the second threaded column to rotate on the frame body, the top of the lifting frame is provided with a wing plate on both sides, the wing plate is provided with a threaded hole matched with the second threaded column, the lifting frame is provided with a sliding block, and the frame body is provided with a sliding groove in sliding connection with the sliding block.

[0014] As the improvement: the output end of the first motor is provided with a bevel gear one, the outer side of the center table is provided with a bevel gear two engaged with the bevel gear one, the bottom of the center table is provided with an adjusting plate, the top of the adjusting plate is provided with a first threaded column, and the bottom of the center table is provided with a threaded hole matched with the first threaded column.

[0015] Compared with the prior art, the present application has the beneficial effects that: the present application solves the problems of complicated operation, inconvenient tool switching, easy damage of sample core, low operation efficiency and the like of the existing coring machine by integrating the innovative structures of the displacement mechanism, the reaming drill cylinder and the coring cylinder, realizes integrated continuous operation of drilling, reaming and coring, greatly improves the power transmission stability, sample core integrity and operation efficiency through optimization of transmission adaptability, slag discharge structure and positioning accuracy, is more convenient to operate, can adapt to different highway detection scenes, effectively meets the efficient and accurate coring demand, and specifically:

[0016] 1. The displacement mechanism can realize quick and accurate switching of the drill cylinder, the reaming drill cylinder and the coring cylinder without the need of additional equipment assistance, significantly improves operation continuity and reduces process interval time;

[0017] 2. The optimized transmission structure such as spline cooperation, spring pre-pressing, cross slot and inclined slot cooperation and the like ensures stable docking of different tools and driving mechanisms, deviation-free power transmission and reduces transmission failure probability;

[0018] 3. The arc plate cutting structure and the limiting sliding groove design of the coring cylinder can firmly fix the sample core, avoid sample core falling off or breaking during coring and ensure sample core integrity;

[0019] 4. The pressure-giving driving mechanism cooperates with the positioning table and the positioning groove to ensure stable operation of the lifting frame, accurate positioning, small tool docking error and improved operation accuracy. DETAILED DESCRIPTION

[0020] Figure 1 is a structural schematic diagram of the present application.

[0021] Figure 2 is an explosion view of the main structure of the present application.

[0022] Figure 3 is a structural schematic diagram of the main structure of the present application.

[0023] Figure 4 is a structural schematic diagram of the frame body of the present application.

[0024] Figure 5 is a structural schematic diagram of the positioning frame of the present application.

[0025] Figure 6 is a structural schematic diagram of the displacement mechanism of the present application.

[0026] Figure 7 is a sectional view of the displacement mechanism of the present application.

[0027] Figure 8 is a structural schematic diagram of the drill cylinder of the present application.

[0028] Figure 9 is a structural schematic diagram of the reaming drill cylinder of the present applicationFigure 1 .

[0029] Figure 10 is the structural diagram of the reamer barrel of the present application Figure 2 .

[0030] Figure 11 is the exploded view of the core barrel of the present application.

[0031] Figure 12 is the sectional view of the core barrel of the present application.

[0032] Figure 13 is the structural diagram of the drilling driving mechanism of the present application.

[0033] Figure 14 is the structural diagram of the driving table of the present application.

[0034] Figure 15 is the structural diagram of the pressure feeding driving mechanism of the present application.

[0035] Figure 16 is the structural diagram of the lifting frame of the present application.

[0036] As shown in the figure: 1, frame body; 2, displacement mechanism; 3, drill barrel; 4, reamer barrel; 5, core barrel; 6, drilling driving mechanism; 7, pressure feeding driving mechanism; 8, lifting frame; 11, sliding groove; 12, positioning frame; 13, connecting arm; 14, roller; 15, fixed block; 16, hand push rod; 17, positioning groove; 21, motor one; 211, bevel gear one; 22, center table; 221, bevel gear two; 23, outer ring table; 24, barrel ring table; 241, limiting table; 25, center rod; 26, positioning table; 27, adjusting plate; 28, threaded column one; 31, top plate one; 32, wall hole; 33, transmission table one; 331, inclined table one; 332, clamping table; 333, cross insertion table; 41, rotary digging tooth; 42, empty slot; 43, helical groove; 44, top plate two; 45, unearthed hole; 46, transmission table two; 51, barrel body; 511, top plate three; 512, hollow slot; 513, ring slot; 514, limiting sliding groove; 52, transmission rod; 521, gear one; 522, arc plate; 53, transmission table three; 531, inclined table two; 532, gear two; 61, motor two; 62, gear three; 63, driving shaft; 64, gear four; 65, driving table; 651, inclined slot; 652, clamping slot; 653, cross insertion slot; 66, spline shaft; 67, spring; 71, motor three; 711, pulley one; 72, gear five; 721, pulley two; 73, gear six; 74, threaded column two; 81, connecting table one; 82, connecting table two; 83, wing plate; 84, sliding block. DETAILED DESCRIPTION

[0037] The present application will be further described in detail below with reference to the accompanying drawings.

[0038] Combined with appendix Figure 1 Appendix Figure 2 Appendix Figure 3 and attached Figure 8 As shown, a highway inspection core sampling device includes a frame 1, on which a drilling drive mechanism 6, a drill barrel 3, and a pressure driving mechanism 7 are mounted. The drilling drive mechanism 6 drives the drill barrel 3 to rotate, and the pressure driving mechanism 7 drives the drill barrel 3 to move up and down. The drill barrel 3 has a plurality of uniformly arranged wall holes 32. The device also includes a displacement mechanism 2, a reaming drill barrel 4, a core sampling barrel 5, and a lifting frame 8. The displacement mechanism 2 includes a motor 21 fixed to the lifting frame 8 and a central platform 22 rotatably mounted on the lifting frame 8. When the lifting frame 8 is raised to its highest point, the motor 21 is connected to the central platform 22. An outer ring platform 23 is provided on the outer side of the bottom of the central platform 22. Three protective ring platforms 24 are evenly provided on the outer ring platform 23. The drill barrel 3, the reaming drill barrel 4 and the core sampler 5 are respectively located in the protective ring platforms 24. The pressure driving mechanism 7 drives the lifting frame 8 to move up and down in the frame 1. The drilling driving mechanism 6 is located on the lifting frame 8. The drilling driving mechanism 6 includes a second motor 61 and a drive shaft 63. The second motor 61 drives the drive shaft 63 to rotate on the lifting frame 8. A drive platform 65 is provided at the bottom of the drive shaft 63. The drive platform 65 is connected to the drill barrel 3, the reaming drill barrel 4 and the core sampler 5 respectively.

[0039] This device aims to solve the problem in traditional highway inspection coring operations, where the coring machine only uses a drill barrel for drilling and coring. However, the coring operation requires removing the drill barrel from the coring machine and then knocking the core out of the barrel or using tools to remove the core sample. This is inconvenient and can easily cause the core sample to break. This device integrates multiple functional components and achieves precise and coordinated operation to achieve continuous and efficient coring operations.

[0040] During operation, the frame 1 is first fixed to the road surface to be inspected. In the initial state, the lifting frame 8 is at its highest point. The pressure drive mechanism 7 drives the lifting frame 8 to descend. After the drill barrel 3, the reaming drill barrel 4, and the core sampler 5 reach the ground, they stop descending. The displacement mechanism 2 continues to descend with the lifting frame 8 until the drive platform 65 is dynamically coupled with the drill barrel 3. The motor 61 in the drilling drive mechanism 6 drives the drive platform 65 to rotate through the drive shaft 63, thereby driving the drill barrel 3 to rotate. While the drill barrel 3 is rotating, the lifting frame 8 applies pressure through the drive shaft 63. The driving mechanism 7 applies downward pressure to the drill barrel 3 to complete the initial drilling operation. When the drilling reaches the preset depth, the pressure driving mechanism 7 drives the lifting frame 8 to rise until the lifting frame 8 reaches the highest point. During this process, the protective ring platform 24 drives the drill barrel 3, the reaming drill barrel 4, and the core sampling barrel 5 to rise and reset. It is observed whether the core sample is in the drill barrel 3. If it is, the drill barrel 3 is pulled out from the protective ring platform 24. The multiple wall holes 32 on the drill barrel 3 facilitate the core sample to come out of the drill barrel 3, avoiding the negative pressure in the drill barrel 3 from preventing the core sample from coming out.

[0041] If the sample core is still in the road hole and is not convenient to take out, the sample core needs to be taken out using the reamer barrel 4 and the coring barrel 5. The lifting frame 8 is raised to the highest point, the drive table 65 is decoupled from the power of the drill barrel 3, the motor one 21 is started and drives the central table 22 to rotate, the outer ring table 23 and the barrel ring table 24 at the bottom of the central table 22 rotate with it, the reamer barrel 4 is switched to below the drive table 65, the lifting frame 8 is lowered under the action of the pressure driving mechanism 7, the drive table 65 is coupled with the power of the reamer barrel 4, the reamer barrel 4 starts to rotate and descend, and the reaming process is carried out on the drilled hole to provide space for the coring barrel 5. After the reaming is completed, the lifting frame 8 is raised to the highest point again, the motor one 21 drives the central table 22 to rotate again, the coring barrel 5 is switched to below the drive table 65, the coring barrel 5 falls into the drilled hole, the drive table 65 provides power for the internal components of the coring barrel 5, the bottom part of the coring barrel 5 is inserted into the bottom of the sample core, the lifting frame 8 is raised, the coring barrel 5 moves upward with it, and the sample core can be lifted with the coring barrel 5, completing the whole coring process.

[0042] In this process, the displacement mechanism 2 realizes the accurate switching of the drill barrel 3, the reamer barrel 4 and the coring barrel 5 through the cooperation of the motor one 21 and the central table 22, the pressure driving mechanism 7 provides pressure for the downward operation of each tool and controls the lifting of the lifting frame 8, and the drilling driving mechanism 6 provides power for the rotation of each tool. The three work together to ensure that the drilling, reaming and coring processes are continuously and accurately completed.

[0043] In combination with the drawings Figure 3 , the drawings Figure 8 , the drawings Figure 9 , the drawings Figure 11 , the drawings Figure 13 , the drawings Figure 14 and the drawings Figure 16 , the motor two 61 is fixed on the connecting table two 82 on the lifting frame 8, the drive shaft 63 is rotatably arranged on the connecting table two 82, the motor two 61 is provided with a gear three 62 at the output end, the drive shaft 63 is provided with a gear four 64 at the top end, the gear four 64 is engaged with the gear three 62, the drive table 65 is provided with a spline shaft 66 at the top end, the drive shaft 63 is provided with a spline groove at the bottom end, the spline groove is matched with the spline shaft 66, the drive table 65 and the bottom end of the drive shaft 63 are provided with a spring 67, the drill barrel 3 is provided with a top plate one 31 at the top end, the top plate one 31 is provided with a transmission table one 33, the reamer barrel 4 is provided with a top plate two 44 at the top end, the top plate two 44 is provided with a transmission table two 46, the coring barrel 5 includes a barrel body 51, the barrel body 51 is provided with a top plate three 511 at the top end, the top plate three 511 is rotatably provided with a transmission table three 53 at the top end, the top plate one 31, the top plate two 44 and the top plate three 511 are in contact with the barrel ring table 24 at the bottom end, and the transmission table one 33, the transmission table two 46 and the transmission table three 53 are respectively in transmission connection with the drive table 65.

[0044] In combination with the drawings Figure 8 , the drawings Figure 9 , the drawings Figure 11 and the drawingsFigure 14 As shown, the bottom of the driving table 65 is provided with a cross slot 653, the outer side ring table of the cross slot 653 is provided with an inclined slot 651, the inclined slot 651 is provided with a clamping slot 652, the top side of the transmission table one 33 and the transmission table two 46 is provided with an inclined table one 331 matched with the inclined slot 651, the inclined table one 331 is provided with a clamping table 332, the top of the transmission table one 33 and the transmission table two 46 is provided with a cross slot 333 matched with the cross slot 653, the top side of the transmission table three 53 is provided with an inclined table two 531 matched with the inclined slot 651.

[0045] On the basis of the original, the device further solves the problems of insufficient transmission adaptability between different tools and driving structures, easy deviation of docking precision and poor power transmission stability, and ensures the efficient and accurate cooperation of the drill cylinder 3, the reaming drill cylinder 4, the core taking cylinder 5 and the drilling driving mechanism 6 through the optimization of the transmission structure design.

[0046] When the driving table 65 is docked with the drill cylinder 3, the reaming drill cylinder 4 or the core taking cylinder 5, the motor two 61 is fixed on the connecting table two 82 of the lifting frame 8, the gear three 62 is engaged with the gear four 64 at the top of the driving shaft 63, the driving shaft 63 is rotated on the connecting table two 82, the spline groove at the bottom of the driving shaft 63 is matched with the spline shaft 66 at the top of the driving table 65, and the spring 67 between the driving table 65 and the bottom of the driving shaft 63 provides elastic pressure to ensure the close contact of the driving table 65 with the tool below. For the drill cylinder 3 and the reaming drill cylinder 4, the inclined table one 331 at the top side is inserted into the inclined slot 651 of the driving table 65 to achieve preliminary positioning, and then the cross slot 333 at the top is inserted into the cross slot 653 at the bottom of the driving table 65, the clamping table 332 on the inclined table one 331 is inserted into the clamping slot 652 of the inclined slot 651 to form a stable transmission connection. At this time, the rotation of the driving table 65 can drive the drill cylinder 3 or the reaming drill cylinder 4 to rotate synchronously through the cooperative action of the cross slot 333 and the cross slot 653, the clamping table 332 and the clamping slot 652, and the cooperation of the clamping table 332 and the clamping slot 652 can prevent the inclined table one 331 from sliding in the inclined slot 651.

[0047] When the transmission table three 53 at the top of the core taking cylinder 5 is docked, the inclined table two 531 at the side is inserted or slid into the inclined slot 651 of the driving table 65, and the close contact is achieved under the elastic pressure of the spring 67. Since the transmission table three 53 and the driving table 65 have no clamping structure, the power is transmitted only through the cooperation of the inclined table two 531 and the inclined slot 651. When the transmission table three 53 is blocked, the inclined table two 531 slides along the inclined slot 651 of the driving table 65, the driving table 65 rises, and the spring 67 is compressed. During this process, the driving table 65 continues to rotate, the spring 67 exerts pressure on the driving table 65, so that the inclined slot 651 hits the inclined table two 531, and the internal structure of the core taking cylinder 5 overcomes the resistance through the impact force.

[0048] This structural design enables the drive stage 65 to quickly and accurately engage with different tools after the tool switching is completed by the displacement mechanism 2. Through spline engagement, spring 67 pressure, and multiple positioning of the cross insertion stage 333 and cross slot 653, and the inclined stage and inclined groove 651, the stability and accuracy of power transmission are ensured, further improving the efficiency and precision of the entire core extraction operation.

[0049] Combined with appendix Figure 9 and attached Figure 10 As shown, the inner diameter of the reaming drill barrel 4 is the same as that of the drill barrel 3, and the outer diameter of the reaming drill barrel 4 is larger than that of the drill barrel 3. The bottom of the reaming drill barrel 4 is provided with multiple spiral digging teeth 41 and empty grooves 42. The outer wall of the reaming drill barrel 4 is provided with multiple spiral grooves 43. The bottom of the spiral grooves 43 is connected to the empty grooves 42. The top plate 44 is provided with an excavation hole 45 that is connected to the spiral grooves 43.

[0050] The newly added borehole reaming barrel structure in this device aims to solve the problems of increased resistance, reduced work efficiency, and affected borehole quality caused by untimely removal of slag during the borehole reaming process. By optimizing the wall thickness and slag removal structure of the borehole reaming barrel 4, the smoothness and effectiveness of the borehole reaming operation are improved.

[0051] During operation, when the displacement mechanism 2 switches the reaming drill barrel 4 to below the drive platform 65, the inner diameter of the reaming drill barrel 4 is the same as that of the drill barrel 3, the outer diameter of the reaming drill barrel 4 is larger than that of the drill barrel 3, and the wall thickness of the reaming drill barrel 4 is greater than that of the drill barrel 3. This provides stronger structural support on the basis of reaming, ensuring stability during the reaming process. When the reaming drill barrel 4 rotates and descends under the drive of the drilling drive mechanism 6, the multiple rotary drilling teeth 41 at the bottom can quickly break the road surface material outside the hole wall. Part of the broken soil enters the ground hole and rotates with the rotary drilling teeth 41. As the drill pipe rotates downwards, the excavated soil enters the empty groove 42 at the bottom of the reaming drill pipe 4. Multiple spiral grooves 43 on the outer wall of the reaming drill pipe 4 are connected to the empty groove 42. As the reaming drill pipe 4 rotates, the spiral grooves 43 can transport the excavated soil in the empty groove 42 and between the hole wall and the drill pipe 3 upwards like a spiral conveyor. Finally, the soil is discharged through the soil discharge hole 45 on the top plate 44, which is connected to the spiral grooves 43, thus avoiding the accumulation of excavated soil in the hole. While achieving precise hole reaming, the soil is also efficiently discharged, further ensuring the continuity and quality of the entire coring operation.

[0052] Combined with appendix Figure 11 and attached Figure 12As shown, the outer side of the barrel 51 is provided with a limiting sliding groove 514, and the inner side of the core barrel ring table 24 where the core barrel 5 is located is provided with a limiting table 241 which is in sliding cooperation with the limiting sliding groove 514. The core barrel 5 further comprises a transmission rod 52, and the inner side of the barrel 51 is provided with a hollow groove 512. The transmission rod 52 is rotatably arranged in the hollow groove 512. The top of the transmission rod 52 is provided with a gear one 521 which passes through the top plate three 511. The bottom of the transmission table three 53 is provided with a gear two 532 which is in meshing cooperation with the gear one 521. The bottom of the transmission rod 52 is provided with an arc-shaped plate 522. The inner side of the bottom of the hollow groove 512 is provided with a ring groove 513. The arc-shaped plate 522 is inserted into the bottom of the sample core after passing through the ring groove 513.

[0053] The newly added core barrel 5 structure of the device aims to solve the problem of easy falling of the sample core and insufficient stability of the core taking during the core taking process. The fixing structure of the core barrel 5 is optimized to further improve the core taking quality.

[0054] During the core taking operation, when the displacement mechanism 2 switches the core barrel 5 to the lower side of the driving table 65, the core barrel 5 descends with the lifting frame 8. The limiting sliding groove 514 on the outer side of the barrel 51 is in sliding cooperation with the limiting table 241 on the inner side of the core barrel ring table 24, which ensures that the barrel 51 does not rotate during the downward process, thereby enhancing the stability of the core taking. The driving table 65 drives the transmission table three 53 to rotate. The gear two 532 at the bottom of the transmission table three 53 is in meshing cooperation with the gear one 521 at the top of the transmission rod 52, which makes the transmission rod 52 rotate in the hollow groove 512 on the inner side of the barrel 51. The arc-shaped plate 522 at the bottom of the transmission rod 52 is inserted into the bottom of the sample core after passing through the ring groove 513 on the inner side of the bottom of the hollow groove 512. The arc-shaped plate 522 will be subjected to resistance from the foundation soil layer during the rotation process. The impact force of the driving table 65 on the transmission table three 53 will make the arc-shaped plate 522 cut into the soil layer at the bottom of the sample core, thereby cutting off the connection between the sample core and the soil layer. When the core barrel 5 rises, the arc-shaped plate 522 will lift the sample core, so that it rises with the core barrel 5.

[0055] As shown in Figs. 1 to 5, Figure 4 , Figs. 6 to 10, Figure 5 , Figs. 11 to 15, Figure 6 and Figs. 16 to 20, Figure 16 As shown, the top of the center table 22 is provided with a center rod 25 which is rotatably connected with the connecting table one 81 on the lifting frame 8. The outer side of the top of the center rod 25 is uniformly provided with the same number of positioning tables 26 as the core barrel ring table 24. The inner side of the frame body 1 is provided with a positioning frame 12. The inner side of the positioning frame 12 is provided with a positioning groove 17 which is in sliding cooperation with the positioning table 26.

[0056] During tool switching, the central rod 25 at the top of the central platform 22 is rotatably connected to the connecting platform 81 on the lifting frame 8. The positioning platform 26 on the outer side of the top of the central rod 25 slides into the positioning groove 17 of the positioning frame 12 on the inner side of the frame 1. When the central platform 22 drives the casing ring platform 24 to rotate and switch tools, the positioning platform 26 rotates above the positioning frame 12. After the switching is completed, the positioning platform 26 is aligned with the positioning groove 17. When the central rod 25 descends with the lifting frame 8, the positioning platform 26 slides into the positioning groove 17, thereby achieving precise positioning of the drill barrel 3, the reaming drill barrel 4, and the core barrel 5. This ensures that the reaming drill barrel 4 and the core barrel 5 fall accurately into the borehole. Furthermore, the positioning platform 26 and the positioning groove 17 work together to limit the movement of the displacement mechanism 2 when the lifting frame 8 descends and the drilling drive mechanism 6 is working, further improving the continuity and accuracy of the operation. These structures work together with the original mechanism to make the entire core sampling process more stable and efficient.

[0057] Combined with appendix Figure 1 Appendix Figure 4 Appendix Figure 15 and attached Figure 16 As shown, the pressure driving mechanism 7 includes a motor 71, a gear 72, and a threaded column 74. The motor 71 is fixed on the frame 1. The gear 72 and the threaded column 74 rotate on the frame 1. The output end of the motor 71 is provided with a pulley 711. The gear 72 is coaxially connected to a pulley 721. The pulley 711 and the pulley 721 are connected by a belt drive. The threaded column 74 is provided with a gear 73 that meshes with the gear 72. The top two sides of the lifting frame 8 are provided with wing plates 83. The wing plates 83 are provided with threaded holes that cooperate with the threaded column 74. The lifting frame 8 is provided with a slider 84. The frame 1 is provided with a sliding groove 11 that slides with the slider 84.

[0058] The newly added structure in the pressure drive mechanism 7 of this device is mainly to solve the problem that the driving force transmission is unstable and the lifting process is easy to shake when the lifting frame moves the drill barrel 3, the reaming drill barrel 4 and the core sample barrel 5 up and down, which affects the accuracy and efficiency of the operation. By optimizing the transmission method and the guide structure, it is ensured that the lifting frame can achieve the lifting action smoothly and accurately.

[0059] When it is necessary to drive the lifting frame 8 to move up and down, the motor three 71 in the pressure driving mechanism 7 is started, the pulley one 711 at the output end of the motor three 71 drives the pulley two 721 coaxially connected with the gear five 72 to rotate through the belt, the gear five 72 rotates and engages with the gear six 73 on the threaded column two 74, thereby driving the threaded column two 74 to rotate on the frame body 1, the wing plates 83 on both sides of the top of the lifting frame 8 are matched with the threaded column two 74 through the threaded holes, the rotation of the threaded column two 74 is converted into the up and down movement of the wing plates 83, thereby driving the entire lifting frame 8 to move up and down, at the same time, the sliding block 84 on the lifting frame 8 is matched with the sliding groove 11 on the frame body 1 to provide guidance for the movement of the lifting frame 8 and prevent the lifting frame 8 from deviating or shaking during the movement, the structure design enables the pressure driving mechanism 7 to provide stable and sufficient driving force for the lifting frame 8, thereby ensuring that the drilling cylinder 3, the reaming cylinder 4 and the coring cylinder 5 can accurately control the downhole depth and speed during the drilling, reaming and coring operations, and also ensuring that the lifting frame 8 can smoothly rise to the highest point when the tools are switched, so that the displacement mechanism 2 can smoothly complete the tool switching.

[0060] Combining the drawings Figure 6 and the drawings Figure 7 As shown in the drawings, the output end of the motor one 21 is provided with the bevel gear one 211, the outer side of the center table 22 is provided with the bevel gear two 221 engaged with the bevel gear one 211, the bottom of the center table 22 is provided with the adjusting plate 27, the top of the adjusting plate 27 is provided with the threaded column one 28, and the bottom of the center table 22 is provided with the threaded hole matched with the threaded column one 28.

[0061] The transmission structure of the motor one 21 and the center table 22 and the related structure of the adjusting plate 27 in the device mainly solve the problem of insufficient transmission stability of the displacement mechanism 2 when driving the center table 22 to rotate, and improve the reliability and accuracy of the tool switching by optimizing the transmission mode and adding the height adjustment structure.

[0062] During the tool switching process, when the lifting frame 8 rises to the highest point, the bevel gear one 211 at the output end of the motor one 21 engages with the bevel gear two 221 at the outer side of the center table 22 to form a stable transmission structure, after the motor one 21 is started, the center table 22, the outer ring table 23 at the bottom and the protector ring table 24 are driven to stably rotate through the engagement transmission of the bevel gear one 211 and the bevel gear two 221, thereby realizing the position switching of the drilling cylinder 3, the reaming cylinder 4 and the coring cylinder 5, the adjusting plate 27 at the bottom of the center table 22 can be adjusted in height through the cooperation of the threaded column one 28 at the top and the threaded hole at the bottom of the center table 22, thereby controlling the drilling depth of the drilling cylinder 3 and keeping the lowering depth of the reaming cylinder 4 and the coring cylinder 5 consistent with the drilling depth of the drilling cylinder 3, which ensures the continuous and efficient performance of the entire coring operation.

[0063] Combining the drawings Figure 1 and the drawings Figure 4As shown, the bottom side of the frame body 1 is hingedly provided with a connecting arm 13, the connecting arm 13 is rotatably provided with a roller 14, the bottom of the frame body 1 is provided with a fixed block 15 in contact with the connecting arm 13, and the rear side of the frame body 1 is provided with a hand pushing rod 16.

[0064] In use, the device is moved by pushing the hand pushing rod 16 and cooperating with the roller 14, after reaching the sampling position, the device is tilted twice, the connecting arm 13 is rotated, the roller 14 is moved above the bottom of the frame body 1, so that the frame body 1 directly falls to the ground, preventing the device from moving.

[0065] The above describes the present application and its embodiments, which is not restrictive, the drawings only show one of the embodiments of the present application, the actual structure is not limited thereto, in general, if the ordinary skilled in the art is inspired, without departing from the purpose of the present application, without creating a similar structure and examples of the technical solution, which should belong to the protection scope of the present application.

Claims

1. A highway detection coring device, comprising a frame body (1), a drilling driving mechanism (6), a drill cylinder (3) and a pressure driving mechanism (7) are arranged on the frame body (1), the drilling driving mechanism (6) drives the drill cylinder (3) to rotate, and the pressure driving mechanism (7) drives the drill cylinder (3) to move up and down, characterized in that: further comprising a displacement mechanism (2), a reaming drill cylinder (4), a coring cylinder (5) and a lifting frame (8), the displacement mechanism (2) comprises a motor one (21) fixed on the lifting frame (8) and a central table (22) rotatably arranged on the lifting frame (8), when the lifting frame (8) rises to the highest point, the motor one (21) is in transmission connection with the central table (22), an outer ring table (23) is arranged at the bottom of the outer side of the central table (22), three cylinder protection ring tables (24) are uniformly arranged on the outer ring table (23), the drill cylinder (3), the reaming drill cylinder (4) and the coring cylinder (5) are arranged in the cylinder protection ring tables (24) respectively, the pressure driving mechanism (7) drives the lifting frame (8) to move up and down in the frame body (1), the drilling driving mechanism (6) is arranged on the lifting frame (8), the drilling driving mechanism (6) comprises a motor two (61) and a driving shaft (63), the motor two (61) drives the driving shaft (63) to rotate on the lifting frame (8), a driving table (65) is arranged at the bottom of the driving shaft (63), and the driving table (65) is in transmission connection with the drill cylinder (3), the reaming drill cylinder (4) and the coring cylinder (5) respectively. The top of the driving table (65) is provided with a spline shaft (66), the bottom of the driving shaft (63) is provided with a spline groove matched with the spline shaft (66), a spring (67) is arranged between the driving table (65) and the bottom of the driving shaft (63), the top of the drill cylinder (3) is provided with a top plate one (31), the top plate one (31) is provided with a transmission table one (33), the top of the reaming drill cylinder (4) is provided with a top plate two (44), the top plate two (44) is provided with a transmission table two (46), the coring cylinder (5) comprises a cylinder body (51), the top of the cylinder body (51) is provided with a top plate three (511), the top of the top plate three (511) is rotatably provided with a transmission table three (53), the bottoms of the top plate one (31), the top plate two (44) and the top plate three (511) are in contact with the cylinder protection ring table (24), and the transmission table one (33), the transmission table two (46) and the transmission table three (53) are in transmission connection with the driving table (65) respectively.

2. A highway detection coring device according to claim 1, wherein: The bottom of the driving table (65) is provided with a cross slot (653), an inclined groove (651) is arranged on the outer side ring table of the cross slot (653), a clamping groove (652) is arranged on the inclined groove (651), the top side of the transmission table one (33) and the transmission table two (46) is provided with an inclined table one (331) matched with the inclined groove (651), the inclined table one (331) is provided with a clamping table (332), the top of the transmission table one (33) and the transmission table two (46) is provided with a cross insertion table (333) matched with the cross slot (653), and the top side of the transmission table three (53) is provided with an inclined table two (531) matched with the inclined groove (651).

3. A highway detection coring device according to claim 2, wherein: ​ 4. A highway detection coring device according to claim 2, wherein: The bottom of the reamer barrel (4) is provided with a plurality of screwing digging teeth (41) and a hollow groove (42), the outer wall of the reamer barrel (4) is provided with a plurality of spiral grooves (43), the bottom of the spiral groove (43) is communicated with the hollow groove (42), and the top plate two (44) is provided with an earth outlet hole (45) communicated with the spiral groove (43).

5. A highway detection coring device according to claim 2, wherein: The core taking barrel (5) further comprises a transmission rod (52), the inner side of the barrel body (51) is provided with a hollow groove (512), the transmission rod (52) is rotatably arranged in the hollow groove (512), the top of the transmission rod (52) is provided with a gear one (521) penetrating through the top plate three (511), the bottom of the transmission platform three (53) is provided with a gear two (532) meshing with the gear one (521), the bottom of the transmission rod (52) is provided with an arc-shaped plate (522), the inner side of the bottom of the hollow groove (512) is provided with a ring groove (513), and the arc-shaped plate (522) is inserted into the bottom of the sample core after penetrating through the ring groove (513).

6. A highway detection coring device according to claim 2 or 5, wherein: The outer side of the barrel body (51) is provided with a limiting sliding groove (514), and the inner side of the barrel ring platform (24) where the core taking barrel (5) is located is provided with a limiting platform (241) in sliding cooperation with the limiting sliding groove (514).

7. A highway detection coring device according to claim 1, wherein: The top of the center platform (22) is provided with a center rod (25), the outer side of the top of the center rod (25) is uniformly provided with a same number of positioning platforms (26) as the barrel ring platform (24), the inner side of the frame body (1) is provided with a positioning frame (12), and the inner side of the positioning frame (12) is provided with a positioning groove (17) in sliding cooperation with the positioning platform (26).

8. A highway detection coring device according to claim 1, wherein: The pressure giving driving mechanism (7) comprises a motor three (71) and a threaded column two (74), the motor three (71) drives the threaded column two (74) to rotate on the frame body (1), the top of the lifting frame (8) is provided with a wing plate (83) on both sides, the wing plate (83) is provided with a threaded hole matched with the threaded column two (74), the lifting frame (8) is provided with a sliding block (84), and the frame body (1) is provided with a sliding groove (11) in sliding cooperation with the sliding block (84).

9. A highway detection coring device according to claim 1, wherein: The output end of the motor one (21) is provided with a bevel gear one (211), the outer side of the center platform (22) is provided with a bevel gear two (221) meshing with the bevel gear one (211), the bottom of the center platform (22) is provided with an adjusting plate (27), the top of the adjusting plate (27) is provided with a threaded column one (28), and the bottom of the center platform (22) is provided with a threaded hole matched with the threaded column one (28).

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