A road engineering pavement detection device and detection method

Abstract

The present invention relates to the technical field of road surface detection, and specifically to a road engineering road surface detection device and a detection method. A road engineering road surface detection device comprises a frame, an active component is installed on the frame, the active component comprises two guide rods arranged symmetrically in front and back and fixedly installed on the right side of the upper end of the frame, a coring component is installed on the active component, the active component is used to drive the coring component to sample the road surface, the coring component is installed with a clamping component, and the coring component is also installed with a knocking component; the present invention is used for road core sampling and detection, when the present invention is coring the road surface, the vibration of the coring barrel can be reduced to ensure the accuracy of the road surface detection result, and the present invention can clamp the lower end of the core sample and knock the upper side of the outer part of the core sample in a circumferential direction, so as to quickly separate the core sample from the ground, and at the same time, the present invention can quickly take out the core sample by continuously knocking the upper end of the core sample, so as to increase the efficiency of road surface coring detection.

Description

Technical Field

[0001] The present invention relates to the technical field of road surface detection, and in particular to a road engineering road surface detection device and a detection method. Background Art

[0002] During road construction, construction workers need to inspect the road surface to ensure the road structure performance, safety and durability. When inspecting the road surface, core sampling is usually used to obtain real material samples directly from the site, thereby being able to comprehensively evaluate the road conditions.

[0003] For road coring inspection, the utility model patent with publication number CN219176255U discloses a road coring device, which performs coring operations on the road surface through a drill barrel. At the same time, a screw is arranged in the drill barrel so that the screw can drill into the core sample, thereby facilitating the removal of the core sample from the road surface, so that the staff can inspect the core sample.

[0004] The above technical solution has the following problems when coring the road surface: 1. After the coring of the road surface is completed, the core sample is difficult to remove from the threaded rod, which reduces the efficiency of the coring test. When the core sample is drilled into the threaded rod to take out the core sample, the threaded rod may cause damage to the end of the core sample during the drilling process, which reduces the accuracy of the test results. 2. The drill barrel may vibrate during coring, and the vibration of the drill barrel may cause cracks and fissures in the core sample, which affects the integrity of the core sample and further reduces the accuracy of the road surface test results. Summary of the invention

[0005] In order to solve the above technical problems, the present invention adopts the following technical scheme: a road engineering pavement detection device, including a frame, an active component is installed on the frame, the active component includes two guide rods fixedly installed on the right side of the upper end of the frame and arranged symmetrically in front and behind, a coring component is installed on the active component, the active component is used to drive the coring component to sample the pavement, a clamping component is installed on the coring component, and a knocking component is also installed on the coring component; the coring component includes a transmission shaft installed on the active component, a buffer sleeve is provided on the outer side of the transmission shaft through a plurality of buffer spring rotating sleeves, and the buffer sleeve is connected to the active component, a coring barrel is fixedly installed on the lower end of the transmission shaft, a plurality of circumferentially evenly arranged vibration reduction components are installed in the coring barrel, and the vibration reduction component Used to reduce the vibration of the core barrel; a connecting groove arranged in an annular manner is provided in the middle part of the core barrel, and the clamping component includes a synchronous ring arranged in the connecting groove, a downward pressure component for driving the synchronous ring to move downward is installed on the upper side of the synchronous ring, and a plurality of circumferentially evenly arranged transmission components are installed on the lower side of the synchronous ring, and an arc-shaped clamping rod is installed on the transmission component, and the transmission component is used to drive the clamping rod to clamp on the outside of the core sample; an annular groove is provided on the upper side of the inside of the core barrel, and the knocking component includes an annular electric slider assembly installed on the lower inner wall of the annular groove, a rotating ring is installed on the annular electric slider assembly, and a knocking rod is radially slidably installed on the inner side of the rotating ring through an impact spring, and the knocking component also includes a hammering component installed on the upper inner wall of the core barrel.

[0006] Preferably, the pressure assembly includes a connecting sleeve that is slidably mounted up and down on the outside of the transmission shaft and below the buffer sleeve, an adjusting sleeve is rotatably mounted on the lower end of the connecting sleeve, and the adjusting sleeve is mounted on the outside of the transmission shaft by threaded cooperation, a plurality of circumferentially evenly arranged locking rods are fixedly mounted on the upper end of the connecting sleeve, a plurality of locking holes for cooperating with the locking rods to lock the buffer sleeve are opened at the lower end of the buffer sleeve, two left-right symmetrically arranged L-shaped rods are circumferentially slidably mounted on the upper end of the synchronization ring, and the opposite sides of the horizontal sections of the two L-shaped rods are fixedly connected to the connecting sleeve.

[0007] Preferably, a plurality of circumferentially evenly arranged square grooves are provided on the lower side of the inner wall of the core barrel, and the transmission assembly includes a connecting frame slidably installed in the square grooves, a yield spring is connected between the lower end of the connecting frame and the square grooves, a rotating plate with an elastic telescopic structure is rotatably installed in the connecting frame, the lower end of the rotating plate is initially inclined toward the direction close to the middle of the core barrel and is fixedly connected to its corresponding clamping rod, a transmission plate with an elastic telescopic structure is hinged on the upper end of the rotating plate, and the upper end of the transmission plate is connected to its corresponding synchronous ring.

[0008] Preferably, the square groove and the connecting groove are connected by a through groove, an arc groove is provided on the lower side of the synchronous ring at a position corresponding to the clamping rod, a connecting spring rod is slidably installed in the arc groove, the lower end of the connecting spring rod is fixedly connected to the connecting groove, the upper end of the transmission plate is also slidably installed in its corresponding arc groove, and the lower end of the transmission plate is arranged in the through groove.

[0009] Preferably, the vibration reduction assembly includes a pressure plate radially slidably installed in the core barrel, ball sleeves are installed on opposite sides of the multiple pressure plates through multiple pressure springs, and the ball sleeves are radially slidably connected to the core barrel, and balls are installed on the end of the ball sleeve away from the pressure plate. Matching plates are fixedly installed at the positions corresponding to the pressure plates on the inner side of the synchronization ring, and inclined surfaces are provided on opposite sides of the multiple matching plates for cooperating with the pressure plates to drive the pressure plates to move toward the middle of the core barrel.

[0010] Preferably, two L-shaped cooperating rods arranged symmetrically front to back are fixedly installed on the upper end of the synchronization ring, and the vertical section of the cooperating rod is slidably installed in a yield groove of an arc-shaped structure preset on the core sampling barrel. A lifting sleeve is slidably installed up and down on the upper outer side of the core sampling barrel, and an arc-shaped plate is fixedly installed at the position of the upper end of the lifting sleeve corresponding to the cooperating rod, and the upper end of the arc-shaped plate is provided with an inclined surface for driving the horizontal section of the cooperating rod to rotate.

[0011] Preferably, an L-shaped lifting plate is provided on the outer side of the guide rod through a plurality of top extension springs that slide up and down, and the lifting plate is used to drive the lifting sleeve to move upward.

[0012] Preferably, a toggle rod is fixedly installed on the upper end of the knocking rod, and the upper end of the toggle rod radially slides through the synchronization ring. A plurality of circumferentially evenly arranged toggle plates are fixedly installed on the inner wall of the annular groove, and a side of the plurality of toggle plates away from each other is arranged as an inclined surface for driving the toggle rod to move away from the middle of the core barrel.

[0013] Preferably, an L-shaped lifting rod is fixedly installed on the inner side of the rotating ring, and the hammering assembly includes a downward pressure spring rod fixedly installed on the inner wall of the core barrel, a hammering plate is fixedly installed on the lower end of the downward pressure spring rod, a transmission sleeve is provided on the outer fixed sleeve of the telescopic end of the downward pressure spring rod, and a plurality of circumferentially evenly arranged square plates are fixedly installed on the outer side of the transmission sleeve, and an inclined surface for cooperating with the vertical section of the lifting rod is opened on the square plate.

[0014] Preferably, a road engineering pavement detection method is completed in cooperation with a road engineering pavement detection device, and the specific steps are as follows: S1, selecting a sampling position: moving the frame to move the coring component to the specified sampling position.

[0015] S2. Road surface sampling: Start the active component to drive the core barrel to move downward and rotate at the same time through the transmission shaft, so that the core barrel can sample the road surface. The vibration reduction component can reduce the vibration of the core barrel when sampling.

[0016] S3. Core sample acquisition: Control the downward pressure component to drive multiple clamping rods to clamp the lower outer side of the core sample through the synchronous ring and the transmission component, then start the active component to drive the core barrel to return to its initial position upward through the transmission shaft, and at the same time start the annular electric slider component to drive the knocking rods to knock the upper outer side of the core sample through the synchronous ring to quickly separate the core sample from the ground. When the core barrel returns to its initial position, start the knocking component to quickly take the core sample out of the core barrel.

[0017] S4. Core sample testing: The core sample is tested manually and the sampling location is filled with asphalt.

[0018] The beneficial effects of the present invention are: 1. The present invention arranges a clamping component to clamp the lower outer part of the core sample, and at the same time arranges a knocking component to knock the upper outer part of the core sample circumferentially, so that the core sample can be quickly separated from the ground, and the knocking component of the present invention can also continuously knock the upper end of the core sample, so that the core sample can be quickly taken out of the coring barrel, thereby increasing the efficiency of road coring detection.

[0019] 2. The present invention provides a clamping rod to exert an elastic force on the core sample to move upward, thereby preventing the core sample from being rigidly separated from the ground and causing damage to the core sample. At the same time, the present invention drives the buffer sleeve to reciprocate through a motor, so that the buffer sleeve finally causes the clamping rod to exert a reciprocating elastic force on the core sample through a buffer spring and a transmission shaft, thereby further enabling the core sample to be quickly separated from the ground.

[0020] 3. The present invention arranges multiple ball sleeves to fit on the surface of the core sample and compress the pressure spring. When the coring barrel is drilling and sampling, the coring barrel reduces vibration under the action of the pressure spring, thereby preventing the vibration of the coring barrel from causing cracks and fissures in the core sample, thereby ensuring the integrity of the core sample and the accuracy of the pavement detection results.

[0021] 4. The present invention increases the compression amount of the pressure spring by arranging a matching plate and a pressure plate, so that the pressure spring has a greater elastic force, ensuring that the core barrel and the core sample are always arranged in the center, further ensuring the integrity of the core sample, and increasing the vibration reduction effect on the core barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention after partially removing the active component.

[0025] Figure 3 It is a three-dimensional structural schematic diagram of the clamping component and the striking component after a portion of the sampling component is cut away.

[0026] Figure 4 The present invention Figure 3 Enlarged view of point A.

[0027] Figure 5 It is a three-dimensional structural schematic diagram of the partial structure of the core-taking component and the pressing assembly after the buffer sleeve is partially removed according to the present invention.

[0028] Figure 6 It is a three-dimensional structural schematic diagram of the clamping component after a part of the core barrel is cut away.

[0029] Figure 7 It is a top view of the present invention after a portion of the core barrel on the upper side of the synchronizer ring is cut away.

[0030] Figure 8 It is a three-dimensional structural schematic diagram of the guide rod and the lifting plate of the present invention.

[0031] Fig. 9 It is a three-dimensional structural schematic diagram of the striking component after a part of the core barrel is cut away.

[0032] Figure numerals: 1, frame; 11, active component; 111, guide rod; 112, extension spring; 113, lifting plate; 114, top plate; 115, threaded rod; 116, rotating disk; 117, integrated board; 118, connecting plate; 119, motor; 2, coring component; 21, transmission shaft; 22, buffer spring; 23, square groove; 24, buffer sleeve; 25, coring barrel; 251, lifting sleeve; 252, arc plate; 26, vibration reduction component; 261, pressure plate; 262, pressure spring; 263, ball sleeve; 27, connecting groove; 28, annular groove; 281, toggle plate; 3, clamping component; 31, synchronization ring; 31 1. L-shaped rod; 312. arc groove; 313. connecting spring rod; 314. matching plate; 315. matching rod; 32. pressing assembly; 321. connecting sleeve; 322. adjusting sleeve; 323. locking rod; 33. transmission assembly; 331. connecting frame; 332. giving way spring; 333. rotating plate; 334. transmission plate; 34. clamping rod; 4. knocking component; 41. annular electric slider assembly; 42. rotating ring; 421. lifting rod; 43. impact spring; 44. knocking rod; 441. toggle rod; 45. hammering assembly; 451. pressing spring rod; 452. hammering plate; 453. transmission sleeve; 454. square plate. DETAILED DESCRIPTION

[0033] The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. If no specific techniques or conditions are specified in the embodiments, the techniques or conditions described in the literature in the art or the product instructions shall be followed.

[0034] See also Figure 1-Figure 3 A road engineering pavement detection device includes a frame 1, an active component 11 is installed on the frame 1, the active component 11 includes two guide rods 111 fixedly installed on the right side of the upper end of the frame 1 and arranged symmetrically in front and behind, a coring component 2 is installed on the active component 11, the active component 11 is used to drive the coring component 2 to sample the road surface, a clamping component 3 is installed on the coring component 2, and a knocking component 4 is also installed on the coring component 2.

[0035] The present invention is used for road core sampling and detection, and the present invention can clamp the lower end of the core sample and circumferentially knock the upper side of the outer part of the core sample, thereby quickly separating the core sample from the ground. At the same time, the present invention releases the clamping of the core sample and continuously knocks the upper end of the core sample, thereby quickly taking out the core sample, thereby increasing the efficiency of coring detection on the road surface.

[0036] Specifically, first push the frame 1 to move to the designated sampling position, then control the active component 11 to drive the coring component 2 to move downward and perform coring on the road surface. When the coring component 2 completes the coring operation on the road surface, control the clamping component 3 to clamp on the lower outer side of the core sample, and control the knocking component 4 to knock circumferentially on the upper outer side of the core sample. Then, when the active component 11 is controlled to drive the coring component 2 to return to its initial position upward, the core sample can be quickly separated from the ground, so that the coring component 2 drives the core sample upward through the clamping component 3, and the knocking component 4 can continuously knock downward on the upper side of the core sample. Then, when the coring component 2 returns to its initial position, control the clamping component 3 to no longer clamp the lower outer side of the core sample, so that the core sample can be quickly taken out of the coring component 2. Finally, manually test the size, physical properties and mechanical properties of the core sample, thereby realizing coring detection of the road surface and filling the sampling position with asphalt.

[0037] See also Figure 1-Figure 3 and Figure 5 The coring component 2 includes a transmission shaft 21 installed on the active component 11, a buffer sleeve 24 is rotatably sleeved on the outer side of the transmission shaft 21 through multiple buffer springs 22, and the buffer sleeve 24 is connected to the active component 11, a core barrel 25 is fixedly installed at the lower end of the transmission shaft 21, and multiple circumferentially evenly arranged vibration reduction components 26 are installed in the core barrel 25, and the vibration reduction components 26 are used to reduce the vibration of the core barrel 25; wherein, the transmission shaft 21 is set as a hollow structure, and a water injection port connected to the hollow structure of the transmission shaft 21 is opened at the upper end of the core barrel 25.

[0038] See also Figure 2 and Figure 6A connecting groove 27 arranged in an annular manner is provided in the middle of the core taking barrel 25, and the clamping component 3 includes a synchronous ring 31 arranged in the connecting groove 27, and a pressing component 32 for driving the synchronous ring 31 to move downward is installed on the upper side of the synchronous ring 31, and a plurality of circumferentially evenly arranged transmission components 33 are installed on the lower side of the synchronous ring 31, and an arc-shaped clamping rod 34 is installed on the transmission component 33, and the transmission component 33 is used to drive the clamping rod 34 to clamp on the outside of the core sample.

[0039] It should be noted that, see Figure 1 and Figure 2 The active component 11 in the present invention includes a top plate 114 fixedly mounted on the upper ends of two guide rods 111, and the left end of the top plate 114 is fixedly connected to the frame 1 through two L-shaped connecting rods, a threaded rod 115 is rotatably mounted on the top plate 114, and the lower end of the threaded rod 115 is rotatably connected to the frame 1, the upper end of the threaded rod 115 rotates through the top plate 114 and is fixedly mounted with a rotating disk 116, an integrated board 117 is mounted on the threaded rod 115 by threaded matching, a connecting plate 118 is fixedly mounted on the right end of the integrated board 117, a water injection pipe is mounted on the upper side of the connecting plate 118 at a position corresponding to the transmission shaft 21, and the connecting plate 118 is rotatably connected to the transmission shaft 21, a motor 119 is mounted on the left side of the lower end of the integrated board 117, and the output shaft of the motor 119 is connected to the buffer sleeve 24 through a synchronous belt.

[0040] The coring component 2 is used for coring the road surface, and the clamping component 3 is used for clamping the core sample; specifically, first manually rotate the rotating disk 116 to drive the threaded rod 115 to rotate, and the threaded rod 115 drives the integrated board 117 to move slowly downward, so that the integrated board 117 drives the coring barrel 25 to move to the road surface through the connecting plate 118 and the transmission shaft 21, and then start the motor 119 to drive the transmission shaft 21 to rotate through the synchronous belt and the buffer sleeve 24, so that the transmission shaft 21 drives the coring barrel 25 to rotate, and at the same time manually rotate the rotating disk 116 to finally drive the coring barrel 2 through the threaded rod 115 5 moves slowly downward, so that the coring barrel 25 drills and samples the road surface, and at the same time, water is injected into the water injection pipe through the water pump, so that the water enters the coring barrel 25 through the water injection pipe, the hollow structure of the transmission shaft 21 and the water injection port to prevent the coring barrel 25 from overheating, and the vibration reduction component 26 can reduce the vibration of the coring barrel 25 to ensure the integrity of the core sample, then the motor 119 is controlled to stop rotating, and the pressing component 32 is controlled to drive the synchronous ring 31 to move downward, so that the synchronous ring 31 drives the multiple clamping rods 34 to clamp on the lower part of the outer side of the core sample through the transmission component 33, so as to realize the clamping and fixing of the core sample.

[0041] Finally, the rotating disk 116 is controlled to eventually drive the core barrel 25 to return to its initial position upward through the threaded rod 115, and the core barrel 25 eventually drives the core sample clamped by the clamping rod 34 to move upward through the synchronous ring 31. When the core barrel 25 returns to its initial position, the pressing assembly 32 is controlled to eventually drive the multiple clamping rods 34 to loosen the core sample through the synchronous ring 31, so that the core sample can be taken out from the core barrel 25 to complete the core sampling of the road surface.

[0042] See also Figure 3 and Figure 7 The vibration reduction assembly 26 includes a pressure plate 261 radially slidably installed in the core barrel 25, and ball sleeves 263 are installed on the opposite sides of the multiple pressure plates 261 through multiple pressure springs 262, and the ball sleeves 263 and the core barrel 25 are radially slidably connected, and balls are installed on the end of the ball sleeve 263 away from the pressure plate 261. The position of the pressure plate 261 on the inner side of the synchronization ring 31 is fixedly installed with a matching plate 314, and the opposite sides of the multiple matching plates 314 are provided with inclined surfaces for cooperating with the pressure plate 261 to drive the pressure plate 261 to move toward the middle of the core barrel 25; wherein, the pressure plate 261 and the clamping rod 34 are arranged alternately.

[0043] See also Figure 1 , Figure 2 , Figure 7 and Figure 8 Two L-shaped matching rods 315 arranged symmetrically front and back are fixedly installed on the upper end of the synchronization ring 31, and the vertical section of the matching rod 315 is slidably installed in the preset arc-shaped yielding groove on the core barrel 25. A lifting sleeve 251 is slidably installed on the upper outer part of the core barrel 25, and an arc-shaped plate 252 is fixedly installed at the position of the upper end of the lifting sleeve 251 corresponding to the matching rod 315. The upper end of the arc-shaped plate 252 is provided with an inclined surface that drives the horizontal section of the matching rod 315 to rotate; the outer side of the guide rod 111 is provided with an L-shaped lifting plate 113 that slides up and down through a plurality of top extension springs 112, and the lifting plate 113 is used to drive the lifting sleeve 251 to move upward.

[0044] The vibration reduction assembly 26 is used to reduce the vibration of the coring barrel 25; specifically, when the coring barrel 25 continues to move downward and drills core samples from the ground, the coring barrel 25 drives the ball sleeve 263 and the ball to move downward through the pressure plate 261. When the ball sleeve 263 moves to the corresponding position of the core sample, the ball on the ball sleeve 263 drives the ball sleeve 263 to move away from the core sample under the action of the upper end of the core sample and compresses the pressure spring 262, and the ball is always in contact with the surface of the core sample. Therefore, when the coring barrel 25 drills the core to sample, the coring barrel 25 can reduce the vibration of the coring barrel 25 under the action of the pressure spring 262, thereby preventing the vibration of the coring barrel 25 from causing cracks, fissures and other damages to the core sample, thereby ensuring the integrity of the core sample and the accuracy of the pavement detection results.

[0045] When the core barrel 25 drives the lifting sleeve 251 to move to the corresponding position of the lifting plate 113, the lifting plate 113 can drive the arc plate 252 to move upward relative to the core barrel 25 through the lifting sleeve 251, so that the inclined surface of the arc plate 252 and the horizontal section of the matching rod 315 cooperate to drive the synchronous ring 31 to rotate clockwise, so that the synchronous ring 31 drives the matching plate 314 to rotate clockwise, and then the inclined surface of the matching plate 314 drives the pressure plate 261 to move toward the core barrel 25, and the ball is always in contact with the surface of the core sample, thereby increasing the compression amount of the pressure spring 262, so that the pressure spring 262 has a greater elastic force, ensuring that the core barrel 25 and the core sample are arranged in the center, and at the same time increasing the vibration reduction effect on the core barrel 25, and when the lifting sleeve 251 moves to the upper limit position, the lifting sleeve 251 can drive the lifting plate 113 to move downward and compress the extension spring 112.

[0046] When the core tube 25 returns to its initial position, the core tube 25 drives the lifting sleeve 251 to move upward and separate from the lifting plate 113. The lifting plate 113 returns to its initial position under the action of the extension spring 112, and the lifting sleeve 251 returns to its initial position under the action of gravity. At the same time, the pressure plate 261 returns to its initial position under the action of the pressure spring 262, and the pressure plate 261 and the matching plate 314 cooperate with each other to drive the synchronous ring 31 to rotate counterclockwise to its initial position.

[0047] See also Figure 4 , Figure 5 and Figure 7 The pressing assembly 32 includes a connecting sleeve 321 which is slidably mounted on the outside of the transmission shaft 21 and is located below the buffer sleeve 24. An adjusting sleeve 322 is rotatably mounted on the lower end of the connecting sleeve 321, and the adjusting sleeve 322 is mounted on the outside of the transmission shaft 21 by threaded fitting. A plurality of circumferentially evenly arranged locking rods 323 are fixedly mounted on the upper end of the connecting sleeve 321. A plurality of locking holes for locking the buffer sleeve 24 in cooperation with the locking rods 323 are provided at the lower end of the buffer sleeve 24. Two left-right symmetrically arranged L-shaped rods 311 are circumferentially slidably mounted on the upper end of the synchronization ring 31. The opposite sides of the horizontal sections of the two L-shaped rods 311 are fixedly connected to the connecting sleeve 321.

[0048] The pressing assembly 32 is used to drive the synchronous ring 31 to move downward; specifically, initially, the adjusting sleeve 322 is located at the upper limit position, and at this time the locking rod 323 is inserted into the locking hole of the buffer sleeve 24 to lock the buffer sleeve 24, and then when the starting motor 119 drives the buffer sleeve 24 to rotate through the synchronous belt, the buffer sleeve 24 can drive the rigid rotation of the transmission shaft 21, so that the transmission shaft 21 drives the coring barrel 25 to perform coring operations on the road surface. When the coring barrel 25 completes the coring operation on the road surface, the control motor 119 stops rotating, and the adjusting sleeve 322 is manually screwed to drive the connecting sleeve 321 to move downward, so that the connecting sleeve 321 drives the locking rod 323 to move out of the locking hole, thereby releasing the lock on the buffer sleeve 24, and at the same time, the connecting sleeve 321 drives the synchronous ring 31 to move downward through the L-shaped rod 311.

[0049] When the clamping rod 34 is clamped on the outside of the core sample and controls the core barrel 25 to return to its initial position upward, the control motor 119 drives the buffer sleeve 24 to rotate reciprocatingly through the synchronous belt, so that the buffer sleeve 24 applies a reciprocating force to the transmission shaft 21 through the buffer spring 22, and then the transmission shaft 21 applies a reciprocating elastic force to the core sample through the core barrel 25 and the clamping rod 34, so that the core sample can be quickly separated from the ground. When the ground sampling is completed, the manually screwed adjustment sleeve 322 drives the locking rod 323 to be inserted into the locking hole again through the connecting sleeve 321.

[0050] See also Figure 6 The lower side of the inner wall of the core barrel 25 is provided with a plurality of square grooves 23 uniformly arranged in the circumferential direction. The transmission assembly 33 comprises a connecting frame 331 slidably installed in the square groove 23 up and down. A yield spring 332 is connected between the lower end of the connecting frame 331 and the square groove 23. A rotating plate 333 with an elastic telescopic structure is rotatably installed in the connecting frame 331. The lower end of the rotating plate 333 is initially inclined toward the direction close to the middle of the core barrel 25 and is fixedly connected to the corresponding clamping rod 34. The upper end of the rotating plate 333 is hinged with an elastic telescopic structure. The transmission plate 334 of the contraction structure has an upper end connected to the corresponding synchronizer ring 31; the square groove 23 and the connecting groove 27 are connected via a through groove; an arc groove 312 is provided at the lower side of the synchronizer ring 31 at a position corresponding to the clamping rod 34; a connecting spring rod 313 is slidably installed in the arc groove 312; the lower end of the connecting spring rod 313 is fixedly connected to the connecting groove 27; the upper end of the transmission plate 334 is also slidably installed in the corresponding arc groove 312, and the lower end of the transmission plate 334 is arranged in the through groove.

[0051] The transmission assembly 33 is used to drive the clamping rod 34 to clamp on the outside of the core sample; specifically, when the synchronous ring 31 moves downward, the synchronous ring 31 compresses the connecting spring rod 313 and drives the transmission plate 334 to move downward, so that the transmission plate 334 drives the rotating plate 333 to rotate with its rotating connection with the connecting frame 331 as a reference, and then the rotating plate 333 drives the clamping rod 34 to move in the direction close to the core sample and clamp on the outside of the core sample. When the core barrel 25 moves upward, the core sample may be connected to the ground at this time, so that the core sample drives the connecting frame 331 to move downward through the clamping rod 34 and compresses the yield spring 332 to prevent the core sample from being rigidly separated from the ground, resulting in cracks and other damage to the core sample. Similarly, when the synchronous ring 31 moves upward, the clamping rod 34 is no longer clamped on the outside of the core sample.

[0052] See also Figure 3 and Fig. 9 An annular groove 28 is provided on the upper side of the inner part of the core barrel 25, and the knocking component 4 includes an annular electric slider assembly 41 installed on the lower inner wall of the annular groove 28, a rotating ring 42 is installed on the annular electric slider assembly 41, and a knocking rod 44 is radially slidably installed on the inner side of the rotating ring 42 through an impact spring 43, and the knocking component 4 also includes a hammering assembly 45 installed on the upper inner wall of the core barrel 25; a toggle rod 441 is fixedly installed on the upper end of the knocking rod 44, and the upper end of the toggle rod 441 radially slides through the synchronous ring 31, and a plurality of circumferentially evenly arranged toggle plates 281 are fixedly installed on the upper inner wall of the annular groove 28, and the side of the plurality of toggle plates 281 away from each other is set as an inclined surface for driving the toggle rod 441 to move away from the middle of the core barrel 25.

[0053] The knocking component 4 is used for knocking the upper outer part of the core sample in a circumferential direction; specifically, when the core sampling tube 25 is controlled to return to its initial position upward, the knocking rod 44 is attached to the upper outer part of the core sample and compresses the impact spring 43, and the annular electric slider assembly 41 is started to drive the rotating ring 42 to rotate, and the rotating ring 42 drives the knocking rod 44 to rotate. When the toggle rod 441 rotates to the corresponding position of the toggle plate 281, the toggle rod 441 drives the knocking rod 44 to move away from the core sample and compresses the impact spring 43 under the action of the inclined surface of the toggle plate 281. When the toggle rod 441 and the toggle plate 281 are separated, the knocking rod 44 pops out in a direction close to the core sample under the action of the impact spring 43, and the toggle plate 281 is provided with multiple ones, so that the knocking rod 44 knocks the upper outer part of the core sample in a circumferential direction, so that the core sample can be quickly separated from the ground, further increasing the sampling efficiency of the core sample.

[0054] See also Fig. 9An L-shaped lifting rod 421 is fixedly installed on the inner side of the rotating ring 42, and the hammering assembly 45 includes a downward pressure spring rod 451 fixedly installed on the inner wall of the core barrel 25, and a hammering plate 452 is fixedly installed on the lower end of the downward pressure spring rod 451. A transmission sleeve 453 is fixedly installed on the outer side of the telescopic end of the downward pressure spring rod 451, and a plurality of circumferentially evenly arranged square plates 454 are fixedly installed on the outer side of the transmission sleeve 453, and an inclined surface for matching with the vertical section of the lifting rod 421 is opened on the square plate 454; wherein, the downward pressure spring rod 451 is arranged as a hollow structure.

[0055] The beating assembly 45 is used to beat the upper end of the core sample; specifically, after the core sample is sampled, the beating plate 452 is attached to the upper end of the core sample and compresses the downward spring rod 451. When the rotating ring 42 rotates, the rotating ring 42 drives the lifting rod 421 to rotate. When the lifting rod 421 rotates to the corresponding position of the square plate 454, the lifting rod 421 and the inclined surface of the square plate 454 cooperate to drive the telescopic end of the downward spring rod 451 to compress and drive the beating plate 452 to move upward. When the lifting rod 421 and the square plate 454 are separated, the downward spring rod 451 drives the beating plate 452 to beat the upper end of the core sample downward under its elastic action, and the square plate 454 is provided with multiple ones. Then, when the clamping rod 34 no longer clamps the outer side of the core sample, the core sample can be quickly taken out from the core sampling tube 25 under the hammering action of the beating plate 452, thereby further increasing the detection efficiency of the road surface.

[0056] In addition, the present invention also provides a road engineering pavement detection method, which is completed in cooperation with a road engineering pavement detection device, and the specific steps are as follows: S1, select a sampling position: move the frame 1 to move the coring barrel 25 to the specified sampling position.

[0057] S2, road surface sampling: manually rotating the rotating disk 116 through the threaded rod 115 to finally drive the core barrel 25 to move to the road surface, and then start the motor 119 to drive the buffer sleeve 24 to rotate through the synchronous belt, and at this time, the locking rod 323 is inserted into the locking hole of the buffer sleeve 24 to lock the buffer sleeve 24, so that the buffer sleeve 24 drives the transmission shaft 21 to rotate rigidly, and at the same time, manually rotating the rotating disk 116 through the threaded rod 115 to finally drive the core barrel 25 to move slowly downward, so that the core barrel 25 drills and samples the road surface. When the pressure plate 261 drives the ball sleeve 263 and the ball to move downward to the corresponding position of the core sample, the ball on the ball sleeve 263 drives the ball sleeve 263 to move away from the core sample and compress the pressure spring 262 under the action of the upper end of the core sample, and the ball is always in contact with the surface of the core sample. When the coring barrel 25 drills and samples, the coring barrel 25 can reduce the vibration of the coring barrel 25 under the action of the pressure spring 262, thereby preventing the vibration of the coring barrel 25 from causing cracks and fissures in the core sample, thereby ensuring the integrity of the core sample and the accuracy of the pavement detection results.

[0058] When the core barrel 25 drives the lifting sleeve 251 to move to the corresponding position of the lifting plate 113, the lifting plate 113 can drive the arc plate 252 to move upward relative to the core barrel 25 through the lifting sleeve 251, so that the inclined surface of the arc plate 252 and the horizontal section of the matching rod 315 cooperate to drive the synchronous ring 31 to rotate clockwise, so that the synchronous ring 31 drives the pressure plate 261 to move closer to the core barrel 25 through the inclined surface of the matching plate 314, thereby increasing the compression amount of the pressure spring 262, making the pressure spring 262 have a greater elastic force, ensuring that the core barrel 25 and the core sample are arranged in the center, and at the same time increasing the vibration reduction effect on the core barrel 25.

[0059] S3, core sample acquisition: After the road surface sampling is completed, the control motor 119 stops rotating, and the adjusting sleeve 322 is manually screwed to drive the connecting sleeve 321 to move downward, so that the connecting sleeve 321 drives the locking rod 323 to release the lock of the buffer sleeve 24, and at the same time, the connecting sleeve 321 drives the synchronous ring 31 to move downward through the L-shaped rod 311, so that the synchronous ring 31 drives the rotating plate 333 to rotate with its rotating connection with the connecting frame 331 as the reference through the transmission plate 334, so that the clamping rod 34 moves in the direction close to the core sample and clamps on the outside of the core sample. When the core sample moves upward, the core sample may be connected with the ground, so that the core sample drives the connecting frame 331 to move downward through the clamping rod 34 and compresses the yield spring 332, so as to prevent the core sample from being rigidly separated from the ground and causing cracks and other damage to the core sample. At the same time, the motor 119 is controlled to drive the buffer sleeve 24 to reciprocate through the synchronous belt, so that the buffer sleeve 24 applies a reciprocating force to the transmission shaft 21 through the buffer spring 22, and then the transmission shaft 21 applies a reciprocating elastic force to the core sample through the coring barrel 25 and the clamping rod 34, so that the core sample can be quickly separated from the ground.

[0060] Start the annular electric slider assembly 41 to drive the knocking rod 44 to rotate through the rotating ring 42, so that the toggle rod 441 and the toggle plate 281 cooperate with the knocking rod 44 to knock the upper outer part of the core sample in a circumferential direction, so that the core sample can be quickly separated from the ground, further increasing the sampling efficiency of the core sample; when the core sampling tube 25 returns to its initial position, manually screw the adjusting sleeve 322 to drive the connecting sleeve 321 to move upward, so that the clamping rod 34 is no longer clamped on the outer side of the core sample; at the same time, the lifting rod 421 and the square plate 454 cooperate to make the hammering plate 452 hammer the upper end of the core sample downward, so that the core sample can be quickly taken out of the core sampling tube 25 under the hammering action of the hammering plate 452, further increasing the detection efficiency of the road surface.

[0061] S4. Core sample testing: The core sample size, physical properties and mechanical performance are manually tested to achieve core testing of the road surface and fill the sampling location with asphalt.

[0062] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A road engineering pavement detection device, comprising a frame (1), an active component (11) is mounted on the frame (1), the active component (11) comprises two guide rods (111) fixedly mounted on the right side of the upper end of the frame (1) and arranged symmetrically in front and back, a coring component (2) is mounted on the active component (11), the active component (11) is used to drive the coring component (2) to sample the road surface, and is characterized in that: The core removing component (2) is provided with a clamping component (3), and the core removing component (2) is also provided with a knocking component (4); The coring component (2) comprises a transmission shaft (21) mounted on the active component (11); a buffer sleeve (24) is rotatably sleeved on the outer side of the transmission shaft (21) via a plurality of buffer springs (22); the buffer sleeve (24) and the active component (11) are connected; a coring barrel (25) is fixedly mounted on the lower end of the transmission shaft (21); a plurality of circumferentially evenly arranged vibration reduction components (26) are mounted in the coring barrel (25); the vibration reduction components (26) are used to reduce the vibration of the coring barrel (25); The core-taking barrel (25) is provided with an annularly arranged connecting groove (27) in the middle thereof, the clamping component (3) comprises a synchronous ring (31) arranged in the connecting groove (27), a pressing assembly (32) for driving the synchronous ring (31) to move downward is installed on the upper side of the synchronous ring (31), a plurality of circumferentially evenly arranged transmission assemblies (33) are installed on the lower side of the synchronous ring (31), a clamping rod (34) with an arc structure is installed on the transmission assembly (33), and the transmission assembly (33) is used to drive the clamping rod (34) to clamp on the outer side of the core sample; An annular groove (28) is provided on the upper inner side of the core-taking barrel (25); the knocking component (4) comprises an annular electric slider assembly (41) mounted on the lower inner wall of the annular groove (28); a rotating ring (42) is mounted on the annular electric slider assembly (41); a knocking rod (44) is radially slidably mounted on the inner side of the rotating ring (42) via an impact spring (43); and the knocking component (4) further comprises a hammering assembly (45) mounted on the upper inner wall of the core-taking barrel (25).

2. A road engineering pavement detection device according to claim 1, characterized in that: The pressing assembly (32) comprises a connecting sleeve (321) which is slidably mounted on the outside of the transmission shaft (21) and located below the buffer sleeve (24); an adjusting sleeve (322) is rotatably mounted on the lower end of the connecting sleeve (321), and the adjusting sleeve (322) is mounted on the outside of the transmission shaft (21) by means of threaded engagement; a plurality of circumferentially uniformly arranged locking rods (323) are fixedly mounted on the upper end of the connecting sleeve (321); a plurality of locking holes for locking the buffer sleeve (24) in cooperation with the locking rods (323); two left-right symmetrically arranged L-shaped rods (311) are circumferentially slidably mounted on the upper end of the synchronization ring (31); and the opposite sides of the horizontal sections of the two L-shaped rods (311) are fixedly connected to the connecting sleeve (321).

3. A road engineering pavement detection device according to claim 1, characterized in that: The lower side of the inner wall of the core-taking barrel (25) is provided with a plurality of circumferentially uniformly arranged square grooves (23), the transmission assembly (33) comprises a connecting frame (331) slidably installed in the square groove (23) up and down, a yielding spring (332) is connected between the lower end of the connecting frame (331) and the square groove (23), a rotating plate (333) with an elastic telescopic structure is rotatably installed in the connecting frame (331), the lower end of the rotating plate (333) is initially inclined in a direction close to the middle of the core-taking barrel (25) and is fixedly connected to its corresponding clamping rod (34), the upper end of the rotating plate (333) is hinged with a transmission plate (334) with an elastic telescopic structure, and the upper end of the transmission plate (334) is connected to its corresponding synchronous ring (31).

4. A road engineering pavement detection device according to claim 3, characterized in that: The square groove (23) and the connecting groove (27) are connected via a through groove. An arc groove (312) is provided at a position corresponding to the clamping rod (34) on the lower side of the synchronizer ring (31). A connecting spring rod (313) is slidably installed in the arc groove (312). The lower end of the connecting spring rod (313) is fixedly connected to the connecting groove (27). The upper end of the transmission plate (334) is also slidably installed in the corresponding arc groove (312), and the lower end of the transmission plate (334) is arranged in the through groove.

5. A road engineering pavement detection device according to claim 1, characterized in that: The vibration reduction assembly (26) includes a pressure plate (261) radially slidably installed in the core barrel (25), and a plurality of pressure plates (261) are installed with ball sleeves (263) on opposite sides via a plurality of pressure springs (262), and the ball sleeves (263) and the core barrel (25) are radially slidably connected, and a ball is installed on the end of the ball sleeve (263) away from the pressure plate (261), and a matching plate (314) is fixedly installed at a position corresponding to the pressure plate (261) on the inner side of the synchronization ring (31), and a plurality of matching plates (314) are provided with an inclined surface on opposite sides for cooperating with the pressure plate (261) to drive the pressure plate (261) to move toward the middle of the core barrel (25).

6. A road engineering pavement detection device according to claim 5, characterized in that: The upper end of the synchronization ring (31) is fixedly mounted with two L-shaped matching rods (315) arranged symmetrically in front and back, and the vertical section of the matching rod (315) is slidably mounted in a preset arc-shaped clearance groove on the core-drilling barrel (25), and a lifting sleeve (251) is slidably mounted on the upper outer part of the core-drilling barrel (25) up and down, and an arc-shaped plate (252) is fixedly mounted at the upper end of the lifting sleeve (251) corresponding to the position of the matching rod (315), and an inclined surface is arranged on the upper end of the arc-shaped plate (252) to drive the horizontal section of the matching rod (315) to rotate.

7. A road engineering pavement detection device according to claim 6, characterized in that: An L-shaped lifting plate (113) is provided on the outer side of the guide rod (111) through a plurality of extension springs (112) that slide up and down, and the lifting plate (113) is used to drive the lifting sleeve (251) to move upward.

8. A road engineering pavement detection device according to claim 1, characterized in that: A toggle rod (441) is fixedly mounted on the upper end of the knocking rod (44), and the upper end of the toggle rod (441) radially slides through the synchronization ring (31). A plurality of toggle plates (281) uniformly arranged in the circumferential direction are fixedly mounted on the inner wall of the annular groove (28), and a side of the plurality of toggle plates (281) away from each other is provided as an inclined surface for driving the toggle rod (441) to move away from the middle of the core barrel (25).

9. A road engineering pavement detection device according to claim 1, characterized in that: A lifting rod (421) of an L-shaped structure is fixedly installed on the inner side of the rotating ring (42), and the hammering assembly (45) includes a downward pressure spring rod (451) fixedly installed on the inner wall of the core-taking barrel (25), a hammering plate (452) is fixedly installed on the lower end of the downward pressure spring rod (451), a transmission sleeve (453) is fixedly installed on the outer side of the telescopic end of the downward pressure spring rod (451), and a plurality of circumferentially evenly arranged square plates (454) are fixedly installed on the outer side of the transmission sleeve (453), and an inclined surface for matching with the vertical section of the lifting rod (421) is provided on the square plate (454).

10. A road engineering pavement detection method, characterized in that: The road engineering pavement detection device according to any one of claims 1 to 9 is used to complete the process, and the specific steps are as follows: S1, selecting a sampling position: moving the carriage (1) to move the coring component (2) to a designated sampling position; S2, road surface sampling: starting the active component (11) to drive the core barrel (25) to move downward and rotate at the same time through the transmission shaft (21), so that the core barrel (25) samples the road surface, and the vibration reduction component (26) can reduce the vibration of the core barrel (25) when sampling; S3, core sample acquisition: control the pressing component (32) to drive the plurality of clamping rods (34) to clamp the outer lower part of the core sample through the synchronous ring (31) and the transmission component (33), then start the active component (11) to drive the core barrel (25) to return to the initial position upward through the transmission shaft (21), and at the same time start the annular electric slider component (41) to drive the knocking rod (44) to knock the outer upper part of the core sample in an annular manner through the synchronous ring (31), so that the core sample and the ground are quickly separated, and when the core barrel (25) returns to the initial position, start the knocking component (4) to quickly take the core sample out of the core barrel (25); S4. Core sample testing: The core sample is tested manually and the sampling location is filled with asphalt.

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