Punching and sampling device for road construction detection

Abstract

The invention discloses a punching and sampling device for road construction detection, and relates to the technical field of road sampling equipment.The punching and sampling device comprises a movable seat, a fixed seat and a fixed seat, the bracket is mounted above the movable seat; the drilling barrel is provided with a driving assembly in a matched mode, and the drilling barrel can rotate along the axis of the drilling barrel; the lifting mechanism is installed on the support, and the lifting mechanism is used for installing a drilling cylinder; the anti-falling mechanism comprises a plurality of first grooves, supporting plates, guide rods and first springs, the first grooves are formed along the circumference of the inner side wall of the lower end of the drill barrel at intervals, the middles of the supporting plates are hinged to the side walls of the corresponding first grooves, the guide rods are vertically inserted into the drill barrel, and the first springs are arranged in the first grooves. The lower ends of the guide rods abut against the lower ends of the supporting plates, and the first springs are installed between the lower side walls of the corresponding first grooves and the lower ends of the corresponding supporting plates. The road sample drilling device can support and limit a road sample in the drilling barrel.

Description

Technical Field

[0001] The invention relates to the technical field of road sampling equipment, and in particular to a punching sampling device used for road construction detection. Background Art

[0002] After the completion of road construction, quality inspection is an important part of ensuring the quality of the project. Among them, sampling and testing of concrete and asphalt layers are particularly critical. The traditional drilling sampling device for road construction inspection includes components such as drive equipment, drill bits and drive spindles. Combined with the movable frame and transmission structure, it realizes the switching adjustment between the upright and horizontal states, improves the stability and safety of the equipment during on-site operation and transfer, and makes it possible to use larger drill bit specifications. At the same time, it also realizes flexible transfer through the flip structure and the adjustment of the drive structure, without the need for additional traction, thereby improving the convenience of sampling work to a certain extent.

[0003] However, in actual applications, after the drill bit punches holes in the concrete and asphalt layers of the road to take samples, the road samples will be stored inside the drill bit. However, when the drill bit completes sampling and rises, since there is no structure inside the drill bit to limit or fix the road samples, the road samples are prone to fall due to vibration or tilting, which not only affects the integrity of the sampling, but may also cause contamination or loss of the samples, thereby affecting the sampling convenience and stability of the drilling sampling device for road construction inspection. Summary of the invention

[0004] In response to the technical problem that existing road drilling and sampling devices are unable to fix road samples, the present invention provides a drilling and sampling device for road construction detection, in which an anti-fall structure is arranged inside the lower end of the drill barrel, which can support and limit the road sample in the drill barrel to prevent the road sample from falling, ensure the integrity of the sampling and avoid the sample from being contaminated or lost, thereby improving the sampling convenience and stability of the drilling and sampling device for road construction detection.

[0005] The present invention is achieved through the following technical solutions:

[0006] The present invention provides a drilling sampling device for road construction detection, comprising: a moving seat, a supporting roller is arranged at the lower part of the moving seat; a bracket, the bracket is installed above the moving seat; a drill barrel, the drill barrel is adapted to be equipped with a driving assembly, and the drill barrel can rotate along its own axis; a lifting mechanism, the lifting mechanism is installed on the bracket, and the lifting mechanism is used to install the drill barrel; an anti-falling mechanism, the anti-falling mechanism comprises a plurality of first grooves, a support plate, a guide rod and a first spring, the plurality of first grooves are arranged at intervals along the circumference of the inner side wall of the lower end of the drill barrel, the middle part of the support plate is hinged to the corresponding side wall of the first groove, the guide rod is vertically inserted in the drill barrel, and the lower end of the guide rod abuts against the lower end of the support plate, and the first spring is installed between the lower side wall of the corresponding first groove and the lower end of the corresponding support plate; wherein, in a standby state, the support plate is inclined toward the inner cavity of the drill barrel, and the upper end of the support plate extends into the inner cavity of the drill barrel, and when the drill barrel is sampling, the support plate can compress the first spring to avoid the road sample.

[0007] The drilling sampling device for road construction detection provided by the present invention comprises a moving seat, a bracket, a drill tube, a lifting mechanism and an anti-falling mechanism. A supporting roller is arranged at the lower part of the moving seat, which is convenient for moving the drilling sampling device to the drilling sampling station. The drill tube is installed on the moving seat through the lifting mechanism and the bracket, so that the drill tube is driven to rise and fall through the lifting mechanism, so that the end of the drill tube is abutted at the drilling sampling position. The anti-falling mechanism is arranged in the drill tube, and the first grooves of the anti-falling mechanism are arranged at intervals along the circumference of the inner side wall of the lower end of the drill tube, the middle part of the support plate is hinged to the corresponding side wall of the first groove, the guide rod is vertically inserted in the drill tube, and the lower end of the guide rod abuts against the lower end of the support plate, and the first spring is installed at the corresponding first spring. A groove is formed between the lower side wall and the lower end of the support plate, so that in the standby state, the upper end of the support plate is extended into the inner cavity of the drill tube by the elastic force of the first spring, and in the case of sampling the drill tube, the road sample is against the side top support plate so that the support plate squeezes the first spring and rotates, ensuring that the road sample can enter the drill tube normally. After the sampling is completed, the first spring drives the support plate to reset, so that the support plate limits the road sample, thereby preventing the road sample from falling, ensuring the integrity of the sampling and preventing the sample from being contaminated or lost, thereby improving the sampling convenience and stability of the punching sampling device for road construction detection, and being suitable for various road construction detection scenarios, with broad application prospects.

[0008] In an optional embodiment of the present application, the lifting mechanism includes: a mounting plate, which is slidably mounted on the bracket; a transmission screw, which is rotatably connected to the bracket and screwed to the mounting plate; a handwheel, which is fixedly arranged at the upper end of the transmission screw to drive the drill barrel to rise and fall by rotating the handle, and accurately adjust the upper and lower positions of the drill barrel, thereby achieving precise control of the sampling depth.

[0009] In an optional embodiment of the present application, the driving assembly of the drill barrel includes: a driven gear, the driven gear is fixedly sleeved outside the upper end of the drill barrel, and the driven gear is mounted on the mounting plate; a transmission gear, the transmission gear is meshed with the driven gear, and the transmission gear is mounted on the mounting plate; a driving motor, the output end of the driving motor is fixedly connected to the shaft of the transmission gear, and the driving motor is fixedly mounted on the mounting plate. The driving motor drives the drill barrel to rotate along its own axis through a gear transmission method, and the gear transmission method has the advantages of large torque transmission and smooth transmission, which can effectively reduce the vibration and noise during the sampling process and further improve the sampling accuracy and stability.

[0010] In an optional embodiment of the present application, it also includes a material return mechanism, which includes: a lifting plate, which is slidably inserted in the top of the inner cavity of the drill tube; a second groove, a plurality of second grooves are provided, and a plurality of second grooves are circumferentially spaced at the top of the inner cavity of the drill tube; a lifting protrusion, which is fixedly provided on the lifting plate, the lifting protrusion is slidably provided in the second groove, and the lifting protrusion abuts against the upper end of the guide rod; a material return rod, the upper section of the material return rod is inserted in the lifting plate, the upper end of the material return rod protrudes from the upper end of the drill tube, and the material return rod can drive the lifting plate down The guide rod is pressed and slides relative to the lifting plate after the guide rod is limited; a stripping plate, the stripping plate is slidably arranged in the drill tube, the stripping plate can move relative to the drill tube along the axis of the drill tube, and the stripping plate is fixedly connected to the lower end of the stripping rod, and the stripping rod drives the lifting plate to drive the supporting plate in linkage, so as to release the limitation of the road sample before the stripping plate pushes the road sample, and then the stripping plate is driven by the stripping rod to push the road sample out of the drill tube, which greatly improves the efficiency and convenience of the sampling work, and at the same time avoids the problem of difficulty in removing samples in traditional sampling devices, and improves the accuracy and reliability of the sampling work.

[0011] In an optional embodiment of the present application, a plurality of limit grooves are arranged at circumferential intervals on the inner side of the through hole in which the lifting plate is inserted into the material return rod; a limit plate is slidably arranged in the limit groove, and the limit plate is provided with a friction plate, and the friction plate abuts against the side wall of the material return rod; a second spring is also arranged in the limit groove, and the action force of the second spring is between the bottom of the limit groove and the limit plate; the outer wall of the material return rod is polished to a rough state to increase the friction between the lifting plate and the material return rod, and ensure that the material return rod can drive the lifting plate to move in conjunction, so as to ensure the stability and reliability of the entire structure and make the material return process smoother and more stable.

[0012] In an optional embodiment of the present application, it also includes a dust reduction mechanism, which is installed on the movable seat, and the dust reduction mechanism includes: a first annular tube, which is sleeved on the drill barrel and fixedly connected to the mounting plate; a first atomizing nozzle, which is provided with a plurality of first atomizing nozzles, and the plurality of first atomizing nozzles are evenly distributed along the circumference of the first annular tube; a water tank, which is installed on the movable seat; a water pump, which is pressed on the water tank, and the water pumping end of the water pump is located in the water tank, and the output end of the water pump is connected to the first annular tube through a hose, so that the clean water in the water tank can be sprayed out from the first atomizing nozzle through the water pump, so as to play a role in dust reduction, so as to protect the environment and the health of the operators, and at the same time, the drill barrel and the drilling area are cooled and lubricated to a certain extent, which is beneficial to extend the service life of the equipment and improve the sampling accuracy.

[0013] In an optional embodiment of the present application, the dust reduction mechanism also includes a second annular tube, which is fixedly arranged in the drill barrel and located above the lifting plate; the second annular tube is connected to the hose, and the second annular tube has a plurality of second atomizing nozzles evenly distributed circumferentially, so as to reduce dust and cool the inside of the drill barrel by spraying clean water mist through the second atomizing nozzle, thereby reducing the influence of dust on sampling accuracy and sample quality, further improving the dust prevention effect and extending the service life of the drill barrel.

[0014] In an optional embodiment of the present application, a plurality of cleaning brushes are provided on the peripheral side of the stripper plate, and the outer wall of the cleaning brush abuts against the inner wall of the drill barrel, so that when the stripper plate moves, the inner wall of the drill barrel can be fully cleaned by the cleaning brush, and combined with the flushing effect of the second atomizing nozzle, the cleaning efficiency and quality are greatly improved, and the cleaning time and labor costs are reduced.

[0015] In an optional embodiment of the present application, two hinged seats are symmetrically arranged on the movable seat, and the hinged seats are provided with hinged plates, and the hinged plates are hinged to the side walls corresponding to the bracket; the movable seat is also fixedly provided with a support seat, and the support seat is used to support the drill barrel after it is laid down, so that the drill barrel can be turned from a vertical state to a horizontal state through the bracket, thereby facilitating the removal of samples inside the drill barrel.

[0016] In an optional embodiment of the present application, the movable seat is equipped with an armrest to facilitate the operator to more easily control and operate the sampling device.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0018] The drilling sampling device for road construction detection provided by the present invention comprises a moving seat, a bracket, a drill tube, a lifting mechanism and an anti-falling mechanism. A supporting roller is arranged at the lower part of the moving seat, which is convenient for moving the drilling sampling device to the drilling sampling station. The drill tube is installed on the moving seat through the lifting mechanism and the bracket, so that the drill tube is driven to rise and fall through the lifting mechanism, so that the end of the drill tube is abutted at the drilling sampling position. The anti-falling mechanism is arranged in the drill tube, and the first grooves of the anti-falling mechanism are arranged at intervals along the circumference of the inner side wall of the lower end of the drill tube, the middle part of the support plate is hinged to the corresponding side wall of the first groove, the guide rod is vertically inserted in the drill tube, and the lower end of the guide rod abuts against the lower end of the support plate, and the first spring is installed at the corresponding first spring. A groove is formed between the lower side wall and the lower end of the support plate, so that in the standby state, the upper end of the support plate is extended into the inner cavity of the drill tube by the elastic force of the first spring, and in the case of sampling the drill tube, the road sample is against the side top support plate so that the support plate squeezes the first spring and rotates, ensuring that the road sample can enter the drill tube normally. After the sampling is completed, the first spring drives the support plate to reset, so that the support plate limits the road sample, thereby preventing the road sample from falling, ensuring the integrity of the sampling and preventing the sample from being contaminated or lost, thereby improving the sampling convenience and stability of the punching sampling device for road construction detection, and being suitable for various road construction detection scenarios, with broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] In the attached picture:

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of a punching sampling device for road construction detection according to an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of the three-dimensional structure of a punching sampling device for road construction detection according to an embodiment of the present invention from a side view;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the punching sampling device for road construction detection according to an embodiment of the present invention, viewed from another side;

[0024] Figure 4 This is a schematic diagram of the structure inside the drill barrel according to an embodiment of the present invention;

[0025] Figure 5 For the embodiment of the present invention Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0026] Figure 6 For the embodiment of the present invention Figure 4 A schematic diagram of the enlarged structure at B in the middle;

[0027] Figure 7 For the embodiment of the present invention Figure 4 Schematic diagram of the enlarged structure at C in the middle;

[0028] Figure 8 This is a schematic diagram of the structure of the connection between the material-removing rod and the lifting plate according to an embodiment of the present invention;

[0029] Fig. 9 This is a schematic diagram of the structure of the connection between the mounting plate and the drill tube according to an embodiment of the present invention;

[0030] Fig.10 This is a schematic diagram of the structure of the dust reduction mechanism according to an embodiment of the present invention;

[0031] Fig.11 This is a schematic structural diagram of the connection between the stripper plate and the cleaning brush according to an embodiment of the present invention;

[0032] Fig.12 This is a schematic diagram of the support and the drill tube being laid flat according to an embodiment of the present invention.

[0033] Marks and corresponding parts names in the attached drawings:

[0034] 1-mobile seat, 11-armrest, 111-flexible sleeve;

[0035] 2- Bracket;

[0036] 3-drill barrel, 31-driven gear, 32-transmission gear, 33-drive motor;

[0037] 4-lifting mechanism, 41-mounting plate, 42-transmission screw, 43-hand wheel;

[0038] 5-anti-fall mechanism, 51-first groove, 52-support plate, 53-guide rod, 54-first spring;

[0039] 6-material ejection mechanism, 61-lifting plate, 611-limiting groove, 612-limiting plate, 613-friction plate, 614-second spring, 62-second groove, 63-lifting convex part, 64-material ejection rod, 65-material ejection plate;

[0040] 7-dust suppression mechanism, 71-first annular pipe, 72-first atomizing nozzle, 73-water tank, 74-water pump, 75-hose, 76-second annular pipe, 77-second atomizing nozzle;

[0041] 8-Cleaning brush;

[0042] 9- hinged seat, 91- hinged plate, 92- support seat. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0044] In the description of the embodiments of the present application, the indicated orientation or position relationship is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is conventionally placed when in use, or is the orientation or position relationship conventionally understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0045] At the same time, the terms "disposed", "opened", "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] Example

[0047] Combination Figure 1 , Figure 4 and Figure 5The present embodiment provides a drilling sampling device for road construction detection, comprising: a moving seat 1, wherein a supporting roller is arranged at the lower part of the moving seat 1; a bracket 2, wherein the bracket 2 is installed above the moving seat 1; a drill tube 3, wherein the drill tube 3 is adapted to be equipped with a driving assembly and the drill tube 3 can rotate along its own axis; a lifting mechanism 4, wherein the lifting mechanism 4 is installed on the bracket 2 and is used to install the drill tube 3; an anti-falling mechanism 5, wherein the anti-falling mechanism 5 comprises a plurality of first grooves 51, a support plate 52, a guide rod 53 and a first spring 54, wherein the plurality of first grooves 51 are arranged at intervals along the circumference of the inner side wall of the lower end of the drill tube 3, wherein the middle part of the support plate 52 is hinged to the corresponding side wall of the first groove 51, wherein the guide rod 53 is vertically inserted into the drill tube 3, wherein the lower end of the guide rod 53 abuts against the lower end of the support plate 52, and the first spring 54 is installed between the lower side wall of the corresponding first groove 51 and the lower end of the corresponding support plate 52.

[0048] In the standby state, the support plate 52 is tilted toward the inner cavity of the drill tube 3, and the upper end of the support plate 52 extends into the inner cavity of the drill tube 3. When the drill tube 3 is sampling, the support plate 52 can compress the first spring 54 to avoid the road sample. In other words, the support plate 52 is initially tilted, that is, the lower end of the support plate 52 is outward and the bottom end is inward, and the tilted support plate 52 can better contact and support the sample, preventing the sample from falling due to vibration or tilt during the sampling process.

[0049] Combination Figure 1-Figure 3 Two hinge seats 9 are symmetrically arranged on the movable seat 1, and the hinge seat 9 is provided with a hinge plate 91, and the hinge plate 91 is hinged to the side wall corresponding to the bracket 2; the movable seat 1 is also fixedly provided with a support seat 92, and the support seat 92 is used to support the drill tube 3 after it is laid down, so that the drill tube 3 can be turned from a vertical state to a horizontal state through the bracket 2, so as to facilitate the removal of samples inside the drill tube 3.

[0050] It is understandable that the movable seat 1 is adapted with an armrest 11, so that the operator can more easily control and operate the sampling device. Usually, a flexible sleeve 111 is fixedly mounted on the armrest 11. In this embodiment, the flexible sleeve 111 on the armrest 11 is made of silicone material, which can effectively relieve the fatigue caused by the operator holding the armrest 11 for a long time, so that the operator can maintain a focused and efficient working state for a longer time. In addition, the anti-slip performance of the flexible sleeve 111 can ensure that the operator always maintains a stable grip on the armrest 11 during the operation, avoiding accidental injuries caused by slipping, thereby improving the safety of the sampling work.

[0051] Combination Figure 1 and Figure 3The lifting mechanism 4 includes: a mounting plate 41, which is slidably mounted on the bracket 2; a transmission screw, which is rotatably connected to the bracket 2 and is screwed to the mounting plate 41; and a handwheel 43, which is fixedly arranged at the upper end of the transmission screw to drive the drill tube 3 to rise and fall by rotating the handle, and accurately adjust the upper and lower positions of the drill tube 3, so as to achieve precise control of the sampling depth. By controlling the position of the drill tube 3 by the handwheel 43, the sampling depth can be easily controlled without the need for additional auxiliary tools or equipment, which reduces the difficulty of operation and labor intensity.

[0052] Combination Fig. 9 The driving assembly of the drill tube 3 includes: a driven gear 31, which is fixedly sleeved outside the upper end of the drill tube 3 and mounted on the mounting plate 41; a transmission gear 32, which is meshed with the driven gear 31 and mounted on the mounting plate 41; a driving motor 33, whose output end is fixedly connected to the shaft of the transmission gear 32, and the driving motor 33 is fixedly mounted on the mounting plate 41. The driving motor 33 drives the drill tube 3 to rotate along its own axis through a gear transmission mode, and the gear transmission mode has the advantages of large torque transmission and stable transmission, which can effectively reduce the vibration and noise in the sampling process and further improve the sampling accuracy and stability.

[0053] Combination Figure 4, this embodiment also includes a material-removing mechanism 6, which includes: a lifting plate 61, which is slidably inserted at the top of the inner cavity of the drill tube 3; a second groove 62, a plurality of second grooves 62 are provided, and a plurality of second grooves 62 are circumferentially spaced at the top of the inner cavity of the drill tube 3; a lifting convex portion 63, which is fixedly provided on the lifting plate 61, and the lifting convex portion 63 is slidably provided in the second groove 62, and the lifting convex portion 63 abuts against the upper end of the guide rod 53; a material-removing rod 64, the upper section of which is inserted in the lifting plate 61, and the upper end of the material-removing rod 64 protrudes from the upper end of the drill tube 3, and the material-removing rod 64 can drive the lifting plate 61 downward The guide rod 53 is pressed, and after the guide rod 53 is limited, it slides relative to the lifting plate 61; a stripping plate 65, the stripping plate 65 is slidably arranged in the drill tube 3, the stripping plate 65 can move relative to the drill tube 3 along the axis of the drill tube 3, and the stripping plate 65 is fixedly connected to the lower end of the stripping rod 64, and the stripping rod 64 drives the lifting plate 61 to drive the supporting plate 52 in a linkage manner, so as to release the limitation of the road sample before the stripping plate 65 pushes the road sample, and then the stripping plate 65 is driven by the stripping rod 64 to push the road sample out of the drill tube 3, which greatly improves the efficiency and convenience of the sampling work, and at the same time avoids the problem of difficulty in removing samples in traditional sampling devices, and improves the accuracy and reliability of the sampling work.

[0054] Combination Figure 6 , Figure 7 and Figure 8 A plurality of limiting grooves 611 are circumferentially spaced apart on the inner side of the through hole of the lifting plate 61 in which the ejection rod 64 is inserted; a limiting plate 612 is slidably arranged in the limiting groove 611, and the limiting plate 612 is provided with a friction plate 613, and the friction plate 613 abuts against the side wall of the ejection rod 64; a second spring 614 is also arranged in the limiting groove 611, and the action force of the second spring 614 is between the bottom of the limiting groove 611 and the limiting plate 612, and the outer wall of the ejection rod 64 is polished into a rough shape to increase the friction between the lifting plate 61 and the ejection rod 64, to ensure that the ejection rod 64 can drive the lifting plate 61 to work in conjunction, so as to ensure the stability and reliability of the entire structure and make the ejection process smoother and more stable.

[0055] Combination Fig.10, this embodiment also includes a dust reduction mechanism 7, which is installed on the mobile seat 1, and the dust reduction mechanism 7 includes: a first annular tube 71, which is sleeved on the drill tube 3 and fixedly connected to the mounting plate 41; a first atomizing nozzle 72, wherein a plurality of the first atomizing nozzles 72 are arranged, and the plurality of the first atomizing nozzles 72 are evenly distributed along the circumference of the first annular tube 71; a water tank 73, which is installed on the mobile seat 1; a water pump 74, which is pressed on the water tank 73, and the water pumping end of the water pump 74 is located in the water tank 73, and the output end of the water pump 74 is connected to the first annular tube 71 through a hose 75, so that the clean water in the water tank 73 is sprayed out from the first atomizing nozzle 72 through the water pump 74, so as to play a role in dust reduction, so as to protect the environment and the health of the operators, and at the same time, the drill tube 3 and the drilling area are cooled and lubricated to a certain extent, which is conducive to extending the service life of the equipment and improving the sampling accuracy.

[0056] Furthermore, the dust reduction mechanism 7 also includes a second annular tube 76, which is fixedly arranged in the drill barrel 3 and is located above the lifting plate 61; the second annular tube 76 is connected to the hose 75, and the second annular tube 76 has a plurality of second atomizing nozzles 77 evenly distributed circumferentially, so as to spray clean water mist through the second atomizing nozzles 77 to reduce dust and cool the inside of the drill barrel 3, thereby reducing the influence of dust on sampling accuracy and sample quality, further improving the dust prevention effect and extending the service life of the drill barrel 3.

[0057] Combination Figure 4 and Fig.11 A plurality of cleaning brushes 8 are arranged on the peripheral side of the stripping plate 65, and the outer wall of the cleaning brush 8 abuts against the inner wall of the drill tube 3, so that when the stripping plate 65 moves, the inner wall of the drill tube 3 is fully cleaned by the cleaning brush 8, and combined with the flushing effect of the second atomizing nozzle 77, the cleaning efficiency and quality are greatly improved, and the cleaning time and labor cost are reduced.

[0058] In summary, the drilling sampling device for road construction inspection provided in this embodiment includes a movable seat 1, a bracket 2, a drill tube 3, a lifting mechanism 4, an anti-falling mechanism 5, a material return mechanism 6 and a dust reduction mechanism 7. When sampling is required, the movable seat 1 is moved to the top of the sampling point by pushing the handrail 11, so that the drill tube 3 is directly opposite the sampling point, and the transmission screw 42 is driven to rotate counterclockwise by rotating the hand wheel 43, so as to drive the mounting plate 41 to move downward along the bracket 2, and the downward movement of the mounting plate 41 will drive the drill tube 3 to move downward synchronously, so that it gradually approaches the ground, thereby driving the drill tube 3 to descend to a position in contact with the road surface through the lifting mechanism 4, and driving the drill tube 3 to rotate through the drive motor 33, and the pneumatic drive motor 33 is driven at the same time.

[0059] After the driving motor 33 starts working, its output end will drive the transmission gear 32 to rotate. Since the transmission gear 32 maintains a precise meshing connection with the driven gear 31, the rotation of the transmission gear 32 will be immediately transmitted to the driven gear 31 and the drill tube 3 connected thereto. After receiving the rotational power, the drill tube 3 will start to rotate along its axial direction. At the same time, the water pump 74 is started. After the water pump 74 starts working, the liquid whose output end is connected to the inside of the water tank 73 is transported to the inside of the first annular tube 71 and the second annular tube 76 along the hose 75. Then, these liquids are sprayed out through the first atomizing nozzle 72 on the first annular tube 71 to form a uniform water mist covering the outside of the drill barrel 3, which can cool and lubricate the drill barrel 3 and the drilling area to a certain extent, helping to extend the service life of the equipment and improve the sampling accuracy; and the liquid inside the second annular tube 76 is sprayed out through the second atomizing nozzle 77 to form a water mist covering the inner wall of the drill barrel 3, which can effectively reduce the dust on the inner wall of the drill barrel 3 and cool the heat generated during the sampling process to a certain extent, helping to protect the integrity of the sampling equipment and the sample.

[0060] After the dust removal mechanism starts to work, the hand wheel 43 is continuously rotated to drive the drill tube 3 downward to drill. As the drill tube 3 goes deeper, the sample will enter the inside of the drill tube 3 along the inner wall thereof, and squeeze the support plate 52 as the drill tube 3 continues to descend. After being squeezed by the sample, the support plate 52 will rotate outward around its hinge point, while driving the guide rod 53 downward and squeezing the first spring 54 to ensure that the road sample can smoothly enter the drill tube 3. As the drill tube 3 goes deeper and rotates, the water mist generated by the dust removal mechanism will continuously contact and adsorb the dust generated in the drilling area, thereby effectively reducing dust. When the predetermined sampling depth is reached, the drive motor 33 is turned off, the rotation of the drill tube 3 is stopped, and when the sample completely enters the inside of the drill tube 3 and moves to the top of the support plate 52, the first spring 54 will push the support plate 52 to reset under the action of its stored force, so that the upper end of the support plate 52 moves inward and tightly presses against the lower end of the sample. At this time, even if the drill tube 3 is lifted or tilted, the sample will not fall from the inside of the drill tube 3. After the sampling is completed, the drill tube 3 can be lifted by the lifting mechanism 4. Then, the transmission screw 42 is driven to rotate clockwise by rotating the hand wheel 43 again. At this time, the transmission screw 42 will drive the mounting plate 41 to move upward along the bracket 2, thereby driving the drill tube 3 to move upward synchronously. As the drill tube 3 gradually rises, the sample will also be brought out of the ground, that is, the drill tube 3 is lifted out of the ground by the lifting mechanism 4, completing the entire drilling sampling.

[0061] Combination Fig.12 When the sample needs to be taken out, the hinge angle between the hinge plate 91 and the hinge seat 9 is adjusted to gradually transform the bracket 2 and the drill tube 3 from a vertical state to a horizontal state. Figure 4 ) moves the ejector rod 64, and then moves downward (based on Figure 4 ) Move the material return rod 64, and drive the lifting plate 61 downward under the action of the friction between the material return rod 64 and the lifting plate 61 (based on Figure 4 ), the lifting plate 61 drives the guide rod 53 to move downward through the lifting protrusion 63 (based on Figure 4 ), the guide rod 53 moves downward (based on Figure 4 ), the first spring 54 is squeezed to shrink and accumulate force, and the support plate 52 is hingedly rotated while the guide rod 53 moves downward, so that the lower end of the support plate 52 moves outward and the upper end moves inward, gradually breaking away from the support for the sample. When the upper end of the support plate 52 is completely separated from the lower end of the sample, the sample is moved out from the inside of the drill tube 3 under its own gravity and the push of the stripping plate 65 and the stripping rod 64, and the stripping is completed.

[0062] During the entire sampling process, the operator needs to pay close attention to the posture changes of the drill tube 3 and stably support the drill tube 3 through the support seat 92. After the material is returned, the water pump 74 remains in the open state, and the second atomizing nozzle 77 sprays out water droplets or water mist to cover the inner wall of the drill tube 3, so as to preliminarily wet and soften the impurities such as dust and soil on the inner wall. At the same time, the material return rod 64 drives the material return plate 65 and the cleaning brush 8 fixedly connected thereto to move up and down. Since the outer wall of the cleaning brush 8 is in close contact with the inner wall of the drill tube 3, the inner wall can be scrubbed during the movement. Thus, through the scrubbing action, the cleaning brush 8 can scrub off the impurities such as dust and soil attached to the inner wall and bring them into the collection area at the bottom of the drill tube 3. As the cleaning process proceeds, the impurities on the inner wall of the drill tube 3 are gradually cleared. When the cleaning is completed, the movement of the material return rod 64 is stopped.

[0063] It is known that after the sampling is completed, the water pump 74 is turned off to stop the delivery of the liquid, and at this time, the various components of the dust reduction mechanism 7 will return to the initial state. At the same time, the operator can adjust the hinge angle between the hinge plate 91 and the hinge seat 9 in the reverse direction to gradually restore the bracket 2 and the drill tube 3 to the vertical state for the next sampling work.

[0064] In summary, the perforating sampling device for road construction detection provided in this embodiment can prevent road samples from falling and facilitate the removal of road samples from the drill tube 3, so as to ensure the integrity of the sampling and avoid sample contamination or loss, thereby improving the sampling convenience and stability of the perforating sampling device for road construction detection, and is suitable for various road construction detection scenarios and has broad application prospects.

[0065] In addition, the present embodiment can achieve comprehensive cleaning of the inner wall of the drum through the combination of the cleaning brush and the stripper plate, thereby ensuring the cleanliness and hygiene of the sampling device. The combination of the scrubbing action of the cleaning brush and the flushing action of the atomizing nozzle 2 greatly improves the cleaning efficiency and quality, and reduces the cleaning time and labor cost.

[0066] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A punching sampling device for road construction detection, characterized in that: include: A movable seat (1), wherein a supporting roller is arranged at the lower part of the movable seat (1); A bracket (2), wherein the bracket (2) is installed above the movable seat (1); A drill barrel (3), wherein the drill barrel (3) is equipped with a driving assembly and the drill barrel (3) is capable of rotating along its own axis; A lifting mechanism (4), the lifting mechanism (4) is installed on the support (2), and the lifting mechanism (4) is used to install the drill tube (3); An anti-fall mechanism (5), the anti-fall mechanism (5) comprising a plurality of first grooves (51), a support plate (52), a guide rod (53) and a first spring (54), the plurality of first grooves (51) being arranged at intervals along the circumference of the inner side wall of the lower end of the drill tube (3), the middle portion of the support plate (52) being hinged to the corresponding side wall of the first groove (51), the guide rod (53) being vertically inserted in the drill tube (3), and the lower end of the guide rod (53) being in contact with the lower end of the support plate (52), and the first spring (54) being installed between the lower side wall of the corresponding first groove (51) and the lower end of the corresponding support plate (52); Wherein, in the standby state, the support plate (52) is inclined toward the inner cavity of the drill tube (3), and the upper end of the support plate (52) extends into the inner cavity of the drill tube (3). When the drill tube (3) is sampling, the support plate (52) can compress the first spring (54) to avoid the road sample.

2. A punching sampling device for road construction detection according to claim 1, characterized in that: The lifting mechanism (4) comprises: A mounting plate (41), wherein the mounting plate (41) is slidably mounted on the bracket (2); A transmission screw, the transmission screw is rotatably connected to the bracket (2), and the transmission screw is threadedly connected to the mounting plate (41); A hand wheel (43), wherein the hand wheel (43) is fixedly arranged on the upper end of the transmission screw.

3. A punching sampling device for road construction detection according to claim 2, characterized in that: The driving assembly of the drill tube (3) comprises: A driven gear (31), the driven gear (31) being fixedly sleeved on the upper end of the drill tube (3), and the driven gear (31) being mounted on the mounting plate (41); a transmission gear (32), the transmission gear (32) meshing with the driven gear (31), and the transmission gear (32) being mounted on the mounting plate (41); A driving motor (33), wherein the output end of the driving motor (33) is fixedly connected to the shaft of the transmission gear (32), and the driving motor (33) is fixedly mounted on the mounting plate (41).

4. A punching sampling device for road construction detection according to claim 1, characterized in that: The device further comprises a material return mechanism (6), wherein the material return mechanism (6) comprises: A lifting plate (61), the lifting plate (61) being slidably inserted at the top of the inner cavity of the drill tube (3); A second groove (62), wherein a plurality of the second grooves (62) are provided, and the plurality of the second grooves (62) are circumferentially spaced and arranged at the top of the inner cavity of the drill tube (3); A lifting protrusion (63), wherein the lifting protrusion (63) is fixedly arranged on the lifting plate (61), the lifting protrusion (63) is slidably arranged in the second groove (62), and the lifting protrusion (63) abuts against the upper end of the guide rod (53); A material-returning rod (64), the upper section of which is inserted into the lifting plate (61), the upper end of which protrudes from the upper end of the drill tube (3), the material-returning rod (64) being able to drive the lifting plate (61) to press down the guide rod (53), and sliding relative to the lifting plate (61) after the guide rod (53) is limited; A material stripping plate (65), wherein the material stripping plate (65) is slidably disposed in the drill tube (3), the material stripping plate (65) can move relative to the drill tube (3) along the axis of the drill tube (3), and the material stripping plate (65) is fixedly connected to the lower end of the material stripping rod (64).

5. A punching sampling device for road construction detection according to claim 4, characterized in that: A plurality of limiting grooves (611) are arranged at intervals in the circumferential direction on the inner side of the through hole of the lifting plate (61) in which the material ejecting rod (64) is inserted; A limiting plate (612) is slidably arranged in the limiting groove (611), and the limiting plate (612) is provided with a friction plate (613), and the friction plate (613) abuts against the side wall of the ejecting rod (64); A second spring (614) is also provided in the limiting groove (611), and the acting force of the second spring (614) is between the bottom of the limiting groove (611) and the limiting plate (612); The outer wall of the material ejection rod (64) is rough.

6. A punching sampling device for road construction detection according to claim 4, characterized in that: It also includes a dust reduction mechanism (7), which is installed on the movable seat (1), and includes: A first annular tube (71), wherein the first annular tube (71) is sleeved on the drill tube (3), and the first annular tube (71) is fixedly connected to the mounting plate (41); a first atomizing nozzle (72), wherein a plurality of the first atomizing nozzles (72) are provided, and the plurality of the first atomizing nozzles (72) are evenly distributed along the circumference of the first annular tube (71); A water tank (73), wherein the water tank (73) is mounted on the movable seat (1); A water pump (74), the water pump (74) is pressed on the water tank (73), and the water pumping end of the water pump (74) is located in the water tank (73), and the output end of the water pump (74) is connected to the first ring pipe (71) through a hose (75).

7. A punching sampling device for road construction detection according to claim 6, characterized in that: The dust reduction mechanism (7) further comprises a second annular tube (76), wherein the second annular tube (76) is fixedly arranged in the drill tube (3), and the second annular tube (76) is located above the lifting plate (61); The second annular tube (76) is in communication with the hose (75), and a plurality of second atomizing nozzles (77) are evenly distributed around the second annular tube (76).

8. A punching sampling device for road construction detection according to claim 7, characterized in that: A plurality of cleaning brushes (8) are arranged on the peripheral side of the stripping plate (65), and the outer wall of the cleaning brush (8) abuts against the inner wall of the drill tube (3).

9. A punching sampling device for road construction detection according to any one of claims 1 to 8, characterized in that: Two hinged seats (9) are symmetrically arranged on the movable seat (1), and the hinged seat (9) is provided with a hinged plate (91), and the hinged plate (91) is hinged to the corresponding side wall of the bracket (2); A support seat (92) is also fixedly arranged on the movable seat (1), and the support seat (92) is used to support the drill tube (3) after it is laid down.

10. A punching sampling device for road construction detection according to claim 9, characterized in that: The movable seat (1) is adapted to be equipped with an armrest (11), and a flexible sleeve (111) is fixedly mounted on the armrest (11).

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