Detection sampling device for highway construction

Abstract

The invention relates to a detection sampling device for highway construction applied to the technical field of highway construction detection, and the detection sampling device comprises a frame body, a sampling mechanism and a sampling intelligent controller, the sampling mechanism comprises a sampling drill bit rotationally connected with a guide plate, a main driving part mounted on the guide plate, and a main shaft, and a thermal reverse pushing strip is vertically mounted between a pressure plate and the main shaft; a heat transfer rod in contact with the bottom of the heat reverse thrust strip is embedded in the middle of the main shaft; by the adoption of the structure, the working state of the sampling drill bit can be flexibly adjusted according to the heating state of the sampling drill bit, the sampling drill bit is not prone to high-temperature damage, automation and intellectualization of road surface detection sampling are achieved by arranging the sampling intelligent controller, and the sampling efficiency is improved. The working mode of the sampling drill bit can be adjusted according to the resistance meeting state in the drilling process of the sampling drill bit, the sampling drill bit is well protected, the damage situation of the sampling drill bit is reduced, and it is guaranteed that the highway construction progress can be normally conducted.

Description

Technical Field

[0001] The invention relates to a sampling device, in particular to a highway construction detection sampling device applied in the technical field of highway construction detection. Background Art

[0002] Highway pavement generally adopts cement concrete surface layer and asphalt mixture surface layer. In order to ensure that the quality of highway pavement reaches the uniform standard, it is necessary to sample and test it, specifically to measure its density or other physical and mechanical properties. It is necessary to use a sampling device to drill holes at the sampling location. After drilling to the specified depth, the sampling device is removed, and the core sample is taken out of the hole. The core samples are numbered and arranged in order in the sampling vehicle or sample box for testing.

[0003] The invention patent with publication number CN118933623A discloses a highway construction rock drilling sampling device, which includes a base supported above the ground, a top seat is fixedly connected to the top of the base through symmetrically arranged guide columns, and a lifting plate is arranged between the base and the top seat, a sampling drill bit is rotatably installed in the middle position of the lifting plate, and the output end of the driving motor and the upper end of the sampling drill bit are connected through a transmission component; it also includes: a first infusion cylinder and a second infusion cylinder, which are symmetrically fixedly installed on the upper surface of the lifting plate, and a dust reduction component is arranged on the lifting plate to achieve spray dust reduction during drilling. The highway construction rock drilling sampling device can synchronously cool the drill bit during the sampling process, and can recycle the cooling water to achieve spray dust reduction.

[0004] When the above scheme is implemented, the sampling drill bit is cooled by water cooling to protect the sampling drill bit. During the process of the sampling drill bit drilling a hole at the sampling location, since the road surface contains a lot of gravel and the internal situation is complicated, when the sampling drill bit encounters large-grained stones during its downward movement and when the sampling drill bit has been working for a long time and generates high temperature, it is necessary to adjust the drilling state of the sampling drill bit in time. These operations require more skilled personnel to master, which makes the sampling drill bit easy to be damaged during the drilling sampling process, affecting the progress of highway construction inspection. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that when the sampling drill bit encounters large-grained stones during its downward movement, or when the sampling drill bit generates high temperature due to a long working time, it is necessary to adjust the drilling state of the sampling drill bit in time. These operations require more skilled personnel to master, which makes the sampling drill bit easy to be damaged during the drilling sampling process, affecting the progress of highway construction inspection.

[0006] In order to solve the above problems, the present invention provides a detection sampling device for highway construction, comprising: A frame body, a vertical guide rod is vertically fixedly installed on the frame body, a guide plate is slidably sleeved on the vertical guide rod, a vertically arranged screw rod is threadedly connected on the guide plate, a turntable is installed on the top of the screw rod, an auxiliary driving member is installed on the frame body, and the output end of the auxiliary driving member is linked with the screw rod; The sampling mechanism comprises a sampling drill bit rotatably connected to the guide plate, a main driving member installed on the guide plate, and a main shaft. A plurality of upper extrusion blocks are circumferentially fixed to the bottom of the main shaft, and a plurality of lower extrusion blocks are circumferentially fixed at the top of the sampling drill bit corresponding to the upper extrusion blocks. A buffer block is arranged between each upper extrusion block and the lower extrusion block, and a pressure sensor is arranged on the buffer block. A driving wheel disk linked to the output end of the main driving member is sleeved on the main shaft, and a regulating cylinder is fixed on the top of the driving wheel disk. A docking ring whose bottom abuts against the top surface of the driving wheel disk is vertically slidably connected to the inner cavity of the regulating cylinder, and a pressure plate vertically plugged into the main shaft is fixed on the top of the docking ring. A thermal reverse thrust strip is vertically installed between the pressure plate and the main shaft. The thermal reverse thrust strip will stretch after being heated and push the pressure plate to move in a direction away from the main shaft. A heat transfer rod in contact with the bottom of the thermal reverse thrust strip is embedded in the middle of the main shaft, and the bottom of the heat transfer rod is connected to the sampling drill bit. The inner cavity of the regulating cylinder is located above the pressure plate and a proximity switch is arranged. The sampling intelligent controller is installed on the frame. The sampling intelligent controller is provided with a drilling button, a drill detection module, a control module and a reminder module. The drill detection module is electrically connected to the control module, the reminder module, the pressure sensor and the proximity switch respectively. The control module is electrically connected to the drilling button, the main drive component and the auxiliary drive component respectively.

[0007] In the above-mentioned inspection and sampling device for highway construction, the working state of the sampling drill bit can be flexibly adjusted according to the heating state of the sampling drill bit, so that it is not easily damaged by high temperature. By setting up a sampling intelligent controller, the automation and intelligent operation of road surface inspection sampling can be realized, and its working mode can be adjusted according to the obstruction state encountered by the sampling drill bit during the drilling process, so as to achieve better protection for the sampling drill bit, reduce its damage, and ensure that the progress of highway construction can proceed normally.

[0008] As a further improvement of the present application, an annularly structured oblique ring is installed on the top of the inner cavity of the regulating cylinder, an active telescopic part is provided on the top surface of the pressure plate, and a stop block is fixed to the mounting end and the output end of the active telescopic part, the outer side surface of the stop block abuts against the inner side surface of the oblique ring, and the abutting surfaces of the two are inclined surfaces.

[0009] As a further improvement of the present application, the middle part of the active telescopic part is slidably connected to the top surface of the pressure plate through a mounting plate, a main control button is provided on the sampling intelligent controller, and the control module is electrically connected to the main control button and the active telescopic part respectively.

[0010] As a further improvement of the present application, an indicator rod is fixed to the top surface of the pressure plate and is arranged to penetrate the top of the regulating cylinder, and the outer ring of the indicator rod is provided with a color-developing coating.

[0011] As another improvement of the present application, a mounting seat is provided on the top of the heat transfer rod, the bottom of the heat reverse thrust strip is installed in the top mounting seat of the heat transfer rod, and the gap between the two is filled with thermal conductive silicone grease.

[0012] As another improvement supplement to the present application, one end of the frame is rotatably connected to a guide wheel, and the other end of the frame is rotatably connected to a driving wheel through a driving rod. The output end of the auxiliary driving member is slidably inserted with a regulating rod through a spline, and pulley one and pulley two are respectively sleeved on the regulating rod. Pulley one is linked to the bottom of the screw rod through a belt assembly, and pulley two is linked to the driving rod through a belt assembly. The regulating rod is located between pulley one and pulley two and a switching ring is fixed thereon.

[0013] As another improvement supplement of the present application, a switching telescopic part installed with the frame is provided at the end of the control rod away from the auxiliary driving part, and the output end of the switching telescopic part is rotatably connected to the end of the control rod. A travel button and a travel module are also provided on the sampling intelligent controller, and the travel module is electrically connected to the travel button, the control module, the switching telescopic part and the auxiliary driving part respectively.

[0014] As another improvement of the present application, the outer ring of the sampling drill bit is provided with a cooling nozzle installed on the guide plate, the cooling nozzle is provided with a spray hole facing the sampling drill bit, a cooling water tank is installed on the guide plate, and the inner cavity of the cooling water tank is connected with the inner cavity of the cooling nozzle through a pipe.

[0015] To sum up, when the sampling drill bit encounters larger stones or the power is blocked, the sampling drill bit will heat up due to the increased friction, and the heat is transferred to the hot push strip through the heat transfer rod. The hot push strip is heated and elongated, and the elongated hot push strip pushes the pressure plate upward. At this time, the docking ring is synchronously adjusted away from the top surface of the regulating cylinder to reduce the driving force of the driving wheel on the main shaft. The working state of the sampling drill bit can be flexibly adjusted according to the heating state of the sampling drill bit, and the sampling drill bit can be protected so that it is not easily damaged by high temperature. Through the set sampling intelligent controller, the resistance state of the sampling drill bit during work can be understood in real time, and its working mode can be adjusted according to the resistance state encountered during the drilling process of the sampling drill bit, so as to achieve better protection for the sampling drill bit, realize the automation and intelligent operation of road surface detection sampling, reduce the damage of the sampling drill bit, and ensure that the progress of highway construction can proceed normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an overall schematic diagram of the first and second implementation modes of the present application; Figure 2 This is an overall schematic diagram of another perspective of the first and second embodiments of the present application; Figure 3This is a schematic diagram of the positions of the spindle and the sampling drill bit in the first and second embodiments of the present application; Figure 4 Schematic cross-sectional view of the main shaft and the regulating cylinder of the first and second embodiments of the present application; Figure 5 A schematic top view of a pressure plate according to the first and second embodiments of the present application; Figure 6 This is a schematic diagram of the first and second implementation modes of the present application after the stop block moves; Figure 7 This is a control principle block diagram of a sampling intelligent controller according to the first embodiment of the present application; Figure 8 Schematic diagram of the position of the control rod of the first and second embodiments of the present application; Fig. 9 This is a schematic diagram of the control rod after movement according to the first and second embodiments of the present application; Fig.10 This is a control principle block diagram of a sampling intelligent controller according to the second embodiment of the present application.

[0017] Description of the numbers in the figure: 1. Frame; 2. Guide wheel; 3. Drive wheel; 4. Vertical guide rod; 5. Sampling drill; 6. Guide plate; 7. Screw; 8. Main drive member; 9. Sampling intelligent controller; 10. Cooling water tank; 11. Cooling nozzle; 12. Auxiliary drive member; 13. Drive wheel; 14. Control tube; 15. Indicator rod; 16. Upper extrusion block; 17. Lower extrusion block; 18. Buffer block; 19. Heat transfer rod; 20. Main shaft; 21. Docking ring; 22. Pressure plate; 23. Heat reverse thrust strip; 24. Proximity switch; 25. Oblique ring; 26. Push block; 27. Active telescopic member; 28. Drive rod; 29. ​​Control rod; 30. Pulley 1; 31. Pulley 2; 32. Switching ring; 33. Switching telescopic member. DETAILED DESCRIPTION

[0018] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0019] The first implementation method: Figure 1-Figure 7 A detection sampling device for highway construction is shown, including a frame 1, a sampling mechanism and a sampling intelligent controller 9; a vertical guide rod 4 is vertically fixedly installed on the frame 1, a guide plate 6 is slidably sleeved on the vertical guide rod 4, a vertically arranged screw rod 7 is threadedly connected on the guide plate 6, a turntable is installed on the top of the screw rod 7, an auxiliary driving member 12 is installed on the frame 1, the output end of the auxiliary driving member 12 is linked with the screw rod 7, the screw rod 7 is controlled to rotate by rotating the turntable, and the guide plate 6 is driven to move stably vertically along the vertical guide rod 4. When automatic control is required, the screw rod 7 is driven to rotate by the auxiliary driving member 12, thereby adjusting the vertical movement of the guide plate 6.

[0020] It is worth mentioning that see Figure 1-Figure 4 The sampling mechanism includes a sampling drill bit 5 rotatably connected to the guide plate 6, a main driving member 8 installed on the guide plate 6, and a main shaft 20. A plurality of upper extrusion blocks 16 are circumferentially fixed to the bottom of the main shaft 20, and a plurality of lower extrusion blocks 17 are circumferentially fixed to the top of the sampling drill bit 5 corresponding to the upper extrusion blocks 16. A buffer block 18 is arranged between each upper extrusion block 16 and the lower extrusion block 17. A pressure sensor is installed on the buffer block 18. The upper extrusion block 16 is driven to rotate by the main shaft 20 to squeeze the buffer block 18, and the lower extrusion block 17 and the sampling drill bit 5 are synchronously driven to rotate, thereby driving the sampling drill bit 5 to rotate to drill and sample the road surface. When the sampling drill bit 5 encounters resistance during the drilling process, the pressure sensor on the buffer block 18 can receive the pressure signal in time.

[0021] Also, see Figure 3 and Figure 4The main shaft 20 is sleeved with a driving wheel disc 13 linked to the output end of the main driving member 8, a regulating cylinder 14 is fixed on the top of the driving wheel disc 13, a docking ring 21 is vertically slidably connected to the inner cavity of the regulating cylinder 14, and a pressure plate 22 vertically plugged into the main shaft 20 is fixed on the top of the docking ring 21. When the docking ring 21 is in close contact with the abutting surface of the driving wheel disc 13, the main driving member 8 will drive the driving wheel disc 13 to rotate, and synchronously drive the docking ring 21 and the pressure plate 22 to rotate, so that The main shaft 20 is synchronously driven to rotate by the pressure plate 22, thereby controlling the sampling drill bit 5 to rotate for drilling and sampling; the docking ring 21 can be synchronously controlled to move up and down by vertically moving the pressure plate 22, thereby controlling the contact force between the bottom surface of the docking ring 21 and the top surface of the driving wheel disc 13, thereby adjusting the power transmission of the driving wheel disc 13 to the main shaft 20. A thermal push back strip 23 is vertically installed between the pressure plate 22 and the main shaft 20. The thermal push back strip 23 will stretch after being heated and push the pressure plate 22 to move away from the main shaft 20. The main shaft 20 A heat transfer rod 19 in contact with the bottom of the heat reverse push strip 23 is embedded in the middle of the control tube 14, and the bottom of the heat transfer rod 19 is connected to the sampling drill bit 5. The inner cavity of the control tube 14 is located above the pressure plate 22 and is equipped with a proximity switch 24. When the sampling drill bit 5 is used for drilling, when the sampling drill bit 5 encounters a large stone or the power is blocked, the sampling drill bit 5 will generate heat due to the increase in friction, and the heat is transferred to the heat reverse push strip 23 through the heat transfer rod 19. The heat reverse push strip 23 is heated and elongated, and the elongated heat reverse push strip 23 pushes the pressure plate 22. The drill bit 5 moves upward, and at this time, the docking ring 21 is synchronously adjusted to be away from the top surface of the regulating tube 14, so as to reduce the driving force of the driving wheel disc 13 on the main shaft 20, thereby reducing the rotation speed of the sampling drill bit 5, and after the temperature of the sampling drill bit 5 drops, the thermal reverse thrust strip 23 is synchronously contracted and reset, so that the docking ring 21 is closely abutted against the driving wheel disc 13 again, and the driving force of the driving wheel disc 13 on the main shaft 20 is restored, so that the working state of the sampling drill bit 5 can be flexibly adjusted according to the heating state of the sampling drill bit 5, and the sampling drill bit 5 is protected so that it is not easily damaged by high temperature.

[0022] The thermal push back strip 23 is made of elastic material, and a medium that deforms when heated is arranged inside it. The medium is preferably a material with a large thermal expansion coefficient such as synthetic rubber, polyurethane, silicone or thermoplastic plastic, which can expand in volume when heated, driving the thermal push back strip 23 to produce an elongation deformation effect.

[0023] In the present embodiment, the sampling intelligent controller 9 is installed on the frame 1, and the sampling intelligent controller 9 is provided with a drilling button, a drill bit detection module, a control module and a reminder module. The drill bit detection module is electrically connected to the control module, the reminder module, the pressure sensor and the proximity switch 24 respectively, and the control module is electrically connected to the drilling button, the main driving component 8 and the auxiliary driving component 12 respectively. When drilling sampling is performed, the drilling button is pressed to send a working signal to the control module, and the control module controls the main driving component 8 and the auxiliary driving component 12 to work. The main driving component 8 drives the sampling drill bit 5 to rotate to the specified position for drilling operation, and the auxiliary driving component 12 controls the screw rod 7 to rotate and control the guide plate 6 to move downward, so that the sampling drill bit 5 moves downward evenly to adjust the drilling depth. The buffer block 18 sends the detected pressure data to the drill bit detection module in real time. The drill bit detection module compares the received pressure data with the pressure threshold (the maximum pressure value of the buffer block 18 is preset in the drill bit detection module). When the pressure exceeds the threshold, the pressure value is 0. When the pressure threshold is reached, the drilling detection module determines that the sampling drill bit 5 encounters resistance in drilling, and may encounter large stones. At this time, the drill bit detection module sends a resistance signal to the control module, and the control module controls the auxiliary driving component 12 to reduce its rotation speed, thereby reducing the descending speed of the guide plate 6 and the sampling drill bit 5. When the drill bit detection module determines that the pressure value fed back by the buffer block 18 still exceeds the pressure threshold, the drill bit detection module sends a continuous resistance signal to the control module, and the control module controls the auxiliary driving component 12 to rotate in the opposite direction to control the guide plate 6 and the sampling drill bit 5 to move up, and at the same time sends a reminder signal to the reminder module. The reminder module sends an audible and visual reminder to remind the staff that the drilling is blocked, and manually conducts an investigation to determine whether it is necessary to continue working, thereby realizing the automation and intelligent operation of road surface detection sampling, and being able to adjust its working mode according to the resistance state of the sampling drill bit 5 during the drilling process, so as to achieve better protection for the sampling drill bit 5, reduce its damage, and ensure that the progress of highway construction can proceed normally.

[0024] In addition, when the sampling drill bit 5 generates heat during operation, the heat reverse push bar 23 will be synchronously controlled to extend. When the heat reverse push bar 23 pushes the pressure plate 22 upward and contacts the proximity switch 24, the drill bit detection module receives the position signal fed back by the proximity switch 24, and determines that the sampling drill bit 5 is overheated. At this time, the drill bit detection module sends an emergency stop signal to the control module and a corresponding alarm signal to the reminder module. The control module will control the main drive component 8 and the auxiliary drive component 12 to stop working, and the reminder module will send an emergency stop sound and light reminder signal to remind the staff to come for processing. The staff can control the rotation of the screw rod 7 by turning the turntable to move the guide plate 6 and the sampling drill bit 5 upward synchronously, detect the state of the sampling drill bit 5, and reduce the situation of overheating and damage of the sampling drill bit 5.

[0025] It is worth mentioning that see Figure 4 and Figure 6The top of the inner cavity of the regulating cylinder 14 is provided with an annular structured oblique ring 25, and the top surface of the pressure plate 22 is provided with an active telescopic member 27. The mounting end and the output end of the active telescopic member 27 are both fixed with a stopper 26. The outer side surface of the stopper 26 abuts against the inner side surface of the oblique ring 25, and the abutting surfaces of the two are inclined surfaces. When the temperature rises and the power transmission between the driving wheel disc 13 and the main shaft 20 is reduced, when the on-site workers judge that the drilling can continue, the active telescopic member 27 can be controlled to extend to push the stopper 26 toward the inner side surface of the oblique ring 25, and the two can be controlled to abut, thereby pushing the pressure plate 22 downward, and the docking ring 21 can be actively controlled to abut against the driving wheel disc 13. The active telescopic member 27 is connected to the main shaft 20, thereby actively controlling the driving force of the drive wheel 13 and the main shaft 20, which is convenient for on-site personnel to make independent judgments and adjustments. The middle part of the active telescopic member 27 is slidably connected to the top surface of the pressure plate 22 through the mounting plate. When the active telescopic member 27 is extended, the abutment blocks 26 at both ends are controlled to abut against the inner side of the bevel ring 25, thereby increasing the abutment force. A main control button is provided on the sampling intelligent controller 9, and the control module is electrically connected to the main control button and the active telescopic member 27 respectively. When manual judgment can be continued, the main control signal is sent to the control module by pressing the main control button. The main control button controls the extension of the active telescopic member 27, thereby synchronously adjusting the driving force of the drive wheel 13 and the main shaft 20.

[0026] Preferably, an indicator rod 15 is fixed to the top surface of the pressure plate 22 and is arranged through the top of the regulating cylinder 14. The outer ring of the indicator rod 15 is provided with a color coating. When the pressure plate 22 moves upward, the indicator rod 15 will be driven to move upward, and the color coating on the side of the indicator rod 15 will leak out. On-site staff can intuitively understand the temperature state of the sampling drill bit 5 and the driving force of the driving wheel 13 on the main shaft 20 by observing the leakage area of ​​the color coating on the indicator rod 15. A mounting seat is provided on the top of the heat transfer rod 19, and the bottom of the heat reverse push strip 23 is installed in the top mounting seat of the heat transfer rod 19, and the gap between the two is filled with thermal conductive silicone grease, which can better transfer the heat of the sampling drill bit 5 to the heat reverse push strip 23 through the heat transfer rod 19. The heat reverse push strip 23 can adaptably adjust its length, and the heat transfer rod 19 is made of a material with a high thermal conductivity.

[0027] In addition, the outer ring of the sampling drill bit 5 is provided with a cooling nozzle 11 installed with the guide plate 6, and the cooling nozzle 11 is provided with a spray hole facing the sampling drill bit 5. A cooling water tank 10 is installed on the guide plate 6. The inner cavity of the cooling water tank 10 is connected with the inner cavity of the cooling nozzle 11 through a pipeline. When drilling sampling is performed, the cooling water in the cooling water tank 10 is discharged from the cooling nozzle 11 through the pipeline and sprayed onto the sampling drill bit 5 through the spray hole, so as to cool the sampling drill bit 5 and reduce the working temperature of the sampling drill bit 5.

[0028] The second implementation method: Figure 2 and Figure 8-Figure 10The detection sampling device for highway construction shown in the figure is different from the first embodiment in that one end of the frame 1 is rotatably connected to the guide wheel 2, and the other end of the frame 1 is rotatably connected to the driving wheel 3 through the driving rod 28. The output end of the auxiliary driving member 12 is slidably inserted with the regulating rod 29 through a spline, and the regulating rod 29 is respectively sleeved with a pulley 1 30 and a pulley 2 31. The pulley 1 30 is linked to the bottom of the screw rod 7 through a belt assembly, and the pulley 2 31 is linked to the driving rod 28 through a belt assembly. The regulating rod 29 is located between the pulley 1 30 and the pulley 2 31, and a switching ring 32 is fixed thereon. The output end of the auxiliary driving member 12 drives the regulating rod 29 to rotate synchronously. Since the pulley 1 30 and the pulley 2 31 are both sleeved with the regulating rod 29, the rotating regulating rod 29 cannot drive the two to rotate. When drilling sampling is performed, through The control rod 29 is controlled to move along its axial direction, thereby controlling the switching ring 32 to contact with the pulley 1 30, increasing the friction between the two, and thereby synchronously driving the pulley 1 30 to rotate through the control rod 29 and the switching ring 32, thereby controlling the rotation of the screw rod 7; when the sampling is completed and the position of the frame 1 needs to be adjusted, the control rod 29 is controlled to move along its axial direction to control the switching ring 32 to contact with the pulley 2 31, thereby increasing the friction between the two. At this time, the switching ring 32 is disengaged from the pulley 1 30, thereby synchronously driving the pulley 2 31 to rotate through the control rod 29 and the switching ring 32, thereby controlling the rotation of the drive wheel 3, and automatically controlling the frame 1 to move to the specified position; achieving the purpose of using a single auxiliary drive component 12 to drive the screw rod 7 to rotate and the frame 1 to move, thereby improving the utilization rate of the auxiliary drive component 12 and reducing the production cost of the equipment.

[0029] In the present embodiment, a switching telescopic member 33 installed with the frame 1 is provided at one end of the regulating rod 29 away from the auxiliary driving member 12, and the output end of the switching telescopic member 33 is rotatably connected to the end of the regulating rod 29. A travel button and a travel module are also provided on the sampling intelligent controller 9. The travel module is electrically connected to the travel button, the regulating module, the switching telescopic member 33 and the auxiliary driving member 12 respectively. After the sampling is completed, when the frame 1 needs to be moved, a travel signal is sent to the travel module by pressing the travel button, and the travel module controls the switching telescopic member 33 to contract and drive the regulating rod 29 to move synchronously. At this time, the switching ring 32 and the belt Wheel one 30 is out of contact and contacts with pulley two 31, and the auxiliary driving part 12 works to drive the regulating rod 29 to rotate, thereby driving the driving rod 28 and the driving wheel 3 to rotate forward and reversely, thereby synchronously driving the frame 1 to move forward and reversely, and realizing the switching function of the travel mode; when sampling, by pressing the drilling button to send a working signal to the regulating module, the regulating module will synchronously send a sampling signal to the travel module, and the sampling module controls the extension of the switching telescopic part 33 to drive the regulating rod 29 to move synchronously, thereby controlling the switching ring 32 to contact with pulley one 30, so as to facilitate the work of driving the screw rod 7 through the auxiliary driving part 12.

[0030] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A detection sampling device for highway construction, characterized in that: include: A frame body (1), a vertical guide rod (4) is vertically fixedly mounted on the frame body (1), a guide plate (6) is slidably sleeved on the vertical guide rod (4), a vertically arranged screw rod (7) is threadedly connected to the guide plate (6), a rotating disk is mounted on the top of the screw rod (7), an auxiliary driving member (12) is mounted on the frame body (1), and an output end of the auxiliary driving member (12) is linked to the screw rod (7); A sampling mechanism, the sampling mechanism comprising a sampling drill bit (5) rotatably connected to a guide plate (6), a main driving member (8) mounted on the guide plate (6), and a main shaft (20), a plurality of upper extrusion blocks (16) being circumferentially fixed to the bottom of the main shaft (20), a plurality of lower extrusion blocks (17) being circumferentially fixed to the top of the sampling drill bit (5) corresponding to the upper extrusion blocks (16), a buffer block (18) being arranged between each of the upper extrusion blocks (16) and the lower extrusion blocks (17), a pressure sensor being mounted on the buffer block (18), a driving wheel disc (13) being sleeved on the main shaft (20) and linked to the output end of the main driving member (8), a regulating cylinder (14) being fixed to the top of the driving wheel disc (13), and a pressure sensor being mounted on the buffer block (18). The inner cavity of the control cylinder (14) is vertically slidably connected with a docking ring (21) whose bottom abuts against the top surface of the driving wheel disc (13); a pressure plate (22) vertically plugged into the main shaft (20) is fixed on the top of the docking ring (21); a heat reverse thrust strip (23) is vertically installed between the pressure plate (22) and the main shaft (20); the heat reverse thrust strip (23) will stretch after being heated and push the pressure plate (22) to move in a direction away from the main shaft (20); a heat transfer rod (19) in contact with the bottom of the heat reverse thrust strip (23) is embedded in the middle of the main shaft (20); the bottom of the heat transfer rod (19) is connected to the sampling drill bit (5); and a proximity switch (24) is installed in the inner cavity of the control cylinder (14) above the pressure plate (22); A sampling intelligent controller (9), the sampling intelligent controller (9) being mounted on a frame (1), the sampling intelligent controller (9) being provided with a drilling button, a drill bit detection module, a control module and a reminder module, the drill bit detection module being electrically connected to the control module, the reminder module, the pressure sensor and the proximity switch (24), respectively, and the control module being electrically connected to the drilling button, the main drive component (8) and the auxiliary drive component (12), respectively.

2. A detection sampling device for highway construction according to claim 1, characterized in that: An oblique ring (25) of an annular structure is installed at the top of the inner cavity of the regulating cylinder (14), an active telescopic member (27) is provided on the top surface of the pressure plate (22), abutments (26) are fixed to the mounting end and the output end of the active telescopic member (27), the outer side surface of the abutment block (26) abuts against the inner side surface of the oblique ring (25), and the abutting surfaces of the two are inclined surfaces.

3. A detection sampling device for highway construction according to claim 2, characterized in that: The middle portion of the active telescopic member (27) is slidably connected to the top surface of the pressure plate (22) via a mounting plate, a main control button is provided on the sampling intelligent controller (9), and the control module is electrically connected to the main control button and the active telescopic member (27), respectively.

4. A detection sampling device for highway construction according to claim 1, characterized in that: An indicator rod (15) is fixed to the top surface of the pressure plate (22) and is arranged to penetrate the top of the regulating cylinder (14). The outer ring of the indicator rod (15) is provided with a color-developing coating.

5. A detection sampling device for highway construction according to claim 1, characterized in that: A mounting seat is provided at the top of the heat transfer rod (19), the bottom of the heat reverse thrust strip (23) is mounted in the mounting seat at the top of the heat transfer rod (19), and a gap between the two is filled with thermal conductive silicone grease.

6. A detection sampling device for highway construction according to claim 1, characterized in that: One end of the frame (1) is rotatably connected to a guide wheel (2), and the other end of the frame (1) is rotatably connected to a driving wheel (3) via a driving rod (28). The output end of the auxiliary driving member (12) is slidably plugged with a regulating rod (29) via a spline, and a first pulley (30) and a second pulley (31) are respectively sleeved on the regulating rod (29). The first pulley (30) is linked to the bottom of the screw rod (7) via a belt assembly, and the second pulley (31) is linked to the driving rod (28) via a belt assembly. The regulating rod (29) is located between the first pulley (30) and the second pulley (31) and is fixed with a switching ring (32).

7. A detection sampling device for highway construction according to claim 6, characterized in that: A switching telescopic member (33) mounted on the frame (1) is provided at one end of the regulating rod (29) away from the auxiliary driving member (12); an output end of the switching telescopic member (33) is rotatably connected to an end of the regulating rod (29); a travel button and a travel module are also provided on the sampling intelligent controller (9); the travel module is electrically connected to the travel button, the regulating module, the switching telescopic member (33) and the auxiliary driving member (12), respectively.

8. A detection sampling device for highway construction according to claim 1, characterized in that: The outer ring of the sampling drill bit (5) is provided with a cooling nozzle (11) mounted on the guide plate (6), the cooling nozzle (11) is provided with a spraying hole facing the sampling drill bit (5), a cooling water tank (10) is mounted on the guide plate (6), and the inner cavity of the cooling water tank (10) is connected to the inner cavity of the cooling nozzle (11) through a pipeline.

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