A concrete micro-crack detection system

Abstract

The present application relates to the technical field of building material quality inspection, and provides a concrete microcrack detection system, including a moving seat, a lifter, and a detector, wherein the lifter is installed on the moving seat, the lifting arm of the lifter is installed with a lifting seat, the lifting seat is provided with a guide ring, the guide ring is sleeved on the outer peripheral side of the column, and the detector is rotatably installed on the guide ring so as to be able to rotate around the central axis of the guide ring; a rotating assembly is provided between the lifting seat and the moving seat, and the rotating assembly is used to force the detector to intermittently rotate around the central axis of the guide ring. A concrete microcrack detection system of the present application can improve the efficiency of microcrack detection of the column.

Description

Technical Field

[0001] The present application relates to the technical field of building material quality detection, and in particular to a concrete micro-crack detection system. Background Art

[0002] With the acceleration of urbanization and the increasing number of large-scale infrastructure projects, the safety and durability of buildings have become the focus of people's attention. As one of the most important building materials, concrete may produce microcracks during long-term service. These microcracks are not easy to be found at the beginning, but may gradually expand over time, resulting in a decline in structural performance and even safety accidents. Therefore, concrete microcrack detection is of great significance to ensure the safety of buildings.

[0003] At present, the commonly used concrete micro-crack detection methods in the market mainly include acoustic wave detection method, electromagnetic detection method, infrared thermal imaging technology and optical detection method. Among them, the acoustic wave detection method transmits acoustic wave signals to concrete, and determines whether there are cracks based on the time difference of the echo. This detection method can accurately identify tiny cracks in concrete; for tall columns, it is usually necessary to install the acoustic wave detector (hereinafter referred to as the detector) on the lifting arm of the aluminum alloy lift (hereinafter referred to as the lift), and drive the detector to rise and fall through the lift, so that the detector can detect concrete micro-cracks at different heights of the column.

[0004] However, although this type of detection can detect micro cracks on columns of a certain height, it is necessary to frequently move and adjust the position of the elevator during the detection process in order to conduct a comprehensive detection of the entire column, which not only increases the workload of the operator, but also greatly reduces the detection efficiency. Therefore, how to improve the efficiency of micro crack detection on the column and reduce the workload of the operator has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] In order to improve the efficiency of micro-crack detection on columns, the present application provides a concrete micro-crack detection system.

[0006] The concrete micro-crack detection system provided in this application adopts the following technical solution:

[0007] A concrete micro-crack detection system comprises a moving seat, an elevator and a detector, wherein the elevator is installed on the moving seat, the lifting seat is installed on the lifting arm of the elevator, the lifting seat is provided with a guide ring, the guide ring is sleeved on the outer peripheral side of a column, and the detector is rotatably installed on the guide ring so as to be able to rotate around the central axis of the guide ring; a rotating assembly is provided between the lifting seat and the moving seat, and the rotating assembly is used to force the detector to intermittently rotate around the central axis of the guide ring.

[0008] By adopting the above technical solution, when performing micro-crack detection on the column, the detector is first transferred to the site through the mobile seat, and the guide ring is set on the outer peripheral side of the column, and then the lifting seat is driven by the elevator to lift and turn on the detector, so that the detector can detect micro-cracks on the column in the height direction. After the detector moves to the top of the column, the lifting seat is driven down by the elevator. When the detector moves down to a low position, the detector is driven to rotate a certain angle around the central axis of the guide ring through the rotating component, and then the lifting seat is driven to lift again, so that the detector can change its position and detect the column in the height direction again; this is repeated so that the detector can surround the column, realize comprehensive concrete micro-crack detection on the column, improve the efficiency of micro-crack detection on the column, and reduce the workload of operators.

[0009] Optionally, a rotating ring is coaxially arranged on the guide ring, the rotating ring is rotatably connected with the guide ring, the detector is arranged on the rotating ring, and the detector is rotatably installed on the guide ring through the rotating ring; the rotating assembly comprises a rotating disk, a rocker, a push rod and a linkage member, the rotating disk is rotatably installed on the lifting seat, the outer peripheral wall of the rotating disk is provided with a plurality of push grooves, and the plurality of push grooves are arranged at intervals around the central axis of the rotating disk; one end of the rocker is hinged to the lifting seat, a tension spring is arranged between the rocker and the lifting seat, and the tension spring forces the rocker to rotate to a horizontal state; a push block is hinged to the side wall of the rocker, a torsion spring is arranged between the push block and the rocker, and the torsion spring forces the push block to be embedded in the push groove of the rotating disk, and when the rocker swings, the push block forces the rotating disk to rotate; one end of the push rod is connected to the moving seat, and when the elevator forces the guide ring to descend to the lowest position, the push rod pushes the rocker to swing; the linkage member is arranged between the rotating disk and the rotating ring to drive the rotating disk and the rotating ring to rotate synchronously.

[0010] By adopting the above technical solution, when the lift drives the detector to descend to a low position, the push rod pushes the swing rod, forcing the swing rod to rotate upward by a certain angle. The swing rod can force the rotating disk to rotate by a certain angle through the push block. Under the action of the linkage, the rotating ring can rotate synchronously with the rotating disk by a certain angle to adjust the orientation of the detector. After the orientation of the detector is adjusted, the lift seat is lifted by the lift. After the swing rod is separated from the push rod, it swings back to its original position under the action of the tension spring, so that the push block is transferred to the next push groove of the rotating disk, so that the lift seat can continue to push the rotating disk to rotate when it descends again, so as to realize the intermittent rotation of the detector around the central axis of the guide ring, which greatly improves the convenience of operation of the overall structure.

[0011] Optionally, the lifting seat is rotatably mounted with a first rotating rod and a second rotating rod respectively, the rotating disk is coaxially arranged on the first rotating rod, and the rotating disk is rotatably mounted on the lifting seat through the first rotating rod; the linkage member includes a rotating ring gear, a rotating gear, a first bevel gear and a second bevel gear, the rotating ring gear is coaxially arranged on the outer peripheral wall of the rotating ring, the rotating gear is coaxially arranged on the outer peripheral wall of the second rotating rod, and the rotating ring gear and the rotating gear are meshed for transmission; the first bevel gear is coaxially arranged on the outer peripheral wall of the first rotating rod, the second bevel gear is coaxially arranged on the outer peripheral wall of the second rotating rod, and the first bevel gear and the second bevel gear are meshed for transmission.

[0012] By adopting the above technical solution, the synchronous rotation of the rotating disk and the rotating ring is achieved by setting the rotating ring gear, the rotating gear, the first bevel gear and the second bevel gear; specifically, when the top rod pushes the swing rod to swing, the push block forces the rotating disk to rotate, thereby driving the first rotating rod to rotate. Due to the meshing transmission between the first bevel gear and the second bevel gear, the second rotating rod also rotates. There is also meshing transmission between the rotating gear and the rotating ring gear, which ultimately drives the rotating ring to rotate with the rotating disk.

[0013] Optionally, a sliding plate is provided at the bottom of the detector, which is slidably connected to the rotating ring and can be displaced radially along the rotating ring; the sliding plate is connected to a positioning rod, and a positioning spring is provided between the sliding plate and the rotating ring, and the positioning spring forces the sliding plate to displace toward the center of the rotating ring and forces the positioning rod to abut against the outer wall of the column.

[0014] By adopting the above-mentioned technical solution, through the setting of the positioning rod and the positioning spring, the sliding plate is displaced toward the center of the rotating ring under the action of the positioning spring, forcing the positioning rod to abut against the outer peripheral wall of the column to control the distance between the detector and the column. When the detector rotates around the central axis of the rotating ring, under the action of the positioning spring, the mounting seat can automatically adjust the position so that the distance between the detector and the column remains unchanged, that is, the distance between the detector and the column before rotation and the distance between the detector and the column after rotation are always kept the same, thereby improving the detection accuracy. In other words, the setting of the positioning rod and the positioning spring can achieve the effect that when the guide ring is sleeved on the outer peripheral side of the column, there is no need to maintain a high coaxiality between the guide ring and the column, thereby improving the operational convenience of the overall structure.

[0015] Optionally, the sliding plate is provided with an adjustment sleeve, and one end of the positioning rod away from the column is passed through the adjustment sleeve; the adjustment sleeve is provided with an adjustment component, and the adjustment component is used to adjust the distance between the sliding plate and the column.

[0016] By adopting the above technical solution, the distance between the sliding plate and the column can be flexibly adjusted. Specifically, the adjustment component enables the positioning rod to slide in the adjustment sleeve, thereby changing the position of the sliding plate relative to the column. This not only improves the adaptability of the detector, making it applicable to columns of different diameters and shapes, but also ensures the stability and accuracy of the detector under different working conditions, further improving the convenience of operation of the overall structure.

[0017] Optionally, the outer wall of the positioning rod is provided with a plurality of snap-fit ​​ring grooves, and the plurality of snap-fit ​​ring grooves are arranged at intervals along the length direction of the positioning rod; the adjustment component includes a limit sleeve, a limit ball and a compression spring, the limit sleeve sliding sleeve is arranged on the outer wall of the adjustment sleeve, the outer wall of the adjustment sleeve is provided with an embedding groove, and the limit ball is embedded in the embedding groove; the compression spring is arranged between the adjustment sleeve and the limit sleeve, the compression spring forces the limit sleeve to cover the embedding groove, and when the limit sleeve covers the embedding groove, the limit sleeve pushes the limit ball to partially embed into the snap-fit ​​ring groove.

[0018] By adopting the above technical solution, under the action of the compression spring, the limit sleeve normally covers the embedding groove and pushes the limit ball to partially embed into the clamping ring groove to limit the sliding of the positioning rod. When it is necessary to adjust the distance between the detector and the column, pull the limit sleeve to force the limit sleeve to disengage from the embedding groove and release the limiting effect on the limit ball. At this time, the positioning rod can be pulled to slide to adjust the distance between the detector and the column. After the distance adjustment is completed, release the limit sleeve. The limit sleeve re-covers the embedding groove under the action of the compression spring, thereby forcing the limit ball to remain embedded in the current clamping ring groove, improving the convenience of adjustment.

[0019] Optionally, the lifting seat includes a lifting main rib and two lifting secondary ribs, the lifting main rib is connected to the lifting arm of the elevator, the two lifting secondary ribs are slidably installed on the lifting main rib, and the lifting main rib is provided with a driving component for driving the two lifting secondary ribs to approach or move away from each other; the guide ring includes two guide arc bars, the two guide arc bars are arranged corresponding to the two lifting secondary ribs, and each guide arc bar is installed on the corresponding lifting secondary rib; a rotating arc groove is provided on the surface of each guide arc bar, and the rotating ring includes two rotating arc bars, the two rotating arc bars are arranged corresponding to the two guide arc bars, and each rotating arc bar is slidably installed in the rotating arc groove of the corresponding guide arc bar; when the two lifting secondary ribs approach each other, the two guide arc bars are combined to form the annular guide ring, and the two rotating arc bars are combined to form the annular rotating ring.

[0020] By adopting the above technical scheme, the guide ring is composed of two guide arc bars, and the rotating ring is composed of two rotating arc bars, so that the guide ring and the rotating ring can be sleeved on the outer peripheral side of the column; before inspecting the column, the two lifting auxiliary ribs are driven away from each other by the driving component to expand the distance between the two guide arc bars, and then the lifting main ribs are driven to move by the moving seat, and the two guide arc bars are driven to move to the outside of the column, and the two lifting auxiliary ribs are driven close to each other by the driving component, so that the two guide arc bars form a guide ring sleeved on the outer peripheral side of the column. After the guide ring is formed, the two rotating arc bars form a rotating ring, which improves the installation convenience of the overall structure.

[0021] Optionally, the driving assembly includes a driving block, a driving screw and a driving member, the lifting main reinforcement is provided with a sliding groove, two driving blocks are provided and the two driving blocks are slidably installed in the sliding groove, the two driving blocks are correspondingly arranged with two lifting secondary reinforcements, each of the lifting secondary reinforcements is installed on the corresponding driving block, and the lifting secondary reinforcement is slidably installed on the lifting main reinforcement through the driving block; the two ends of the driving screw are rotatably installed on the inner wall of the sliding groove, the driving screw is penetrated by the two driving blocks, the driving screw and the two driving blocks are threadedly connected, and the thread rotation direction between the driving screw and the two driving blocks is set to be opposite; the driving member is arranged on the lifting main reinforcement to drive the driving screw to rotate.

[0022] By adopting the above-mentioned technical solution, when the two guide arcs are displaced to the outside of the column, the driving screw is driven to rotate by the driving member, and the thread rotation direction between the driving screw and the two driving blocks is set to be opposite, thereby forcing the two lifting auxiliary ribs to approach each other, so that the two guide arcs form a guide ring; after the inspection of the column is completed, the driving screw is forced to reverse, so that the two lifting auxiliary ribs can be driven away from each other, thereby improving the convenience of disassembly and assembly of the guide ring.

[0023] Optionally, the driving member includes a push rod, a driving gear, a driving rack and a return spring. The push rod is slidably installed on the lifting main rib, and one end of the push rod is used to abut the outer peripheral wall of the column; the driving gear is coaxially arranged on the outer peripheral wall of the driving screw rod, and the driving rack is installed on the push rod. The length direction of the driving rack is consistent with the displacement direction of the push rod, and the driving rack and the driving gear are meshed for transmission; the return spring is installed between the push rod and the lifting main rib, and the return spring forces the two driving blocks to move away from each other.

[0024] By adopting the above technical solution, under normal conditions, the reset spring forces the two drive blocks to move away from each other, so that the two guide arcs are in a separated state to allow the column to enter; the moving seat drives the main lifting rib to move, forcing the column to move between the two guide arcs. During this process, the outer wall of the column blocks the push rod. As the moving seat continues to move, the drive gear and the drive rack are meshed and driven, thereby driving the drive screw to rotate and forcing the two lifting secondary ribs to approach each other, so that the two guide arcs are combined to form a guide ring sleeved on the column. After the inspection is completed, the moving seat is driven away from the column, and the push rod forces the drive screw to reverse under the action of the reset spring, so that the two lifting secondary ribs can be driven away from each other, greatly improving the convenience of disassembly and assembly of the guide ring.

[0025] Optionally, a third rotating rod is provided at one end of the lifting secondary rib, and the third rotating rod is rotatably installed on the corresponding driving block, and one end of the lifting secondary rib is rotatably connected to the corresponding driving block through the third rotating rod; the lifting main rib is provided with a flipping assembly, and when the two driving blocks move away from each other, the flipping assembly forces the lifting secondary rib to swing around the third rotating rod, and the distance between the free ends of the two lifting secondary ribs is enlarged.

[0026] By adopting the above-mentioned technical solution, through the setting of the third rotating rod and the flipping assembly, when the two driving blocks move away from each other, the flipping assembly forces the lifting and lowering ribs to swing, and the distance between the free ends of the two lifting and lowering ribs is enlarged so that the column can move out from between the two guide arcs. By rotating the lifting and lowering ribs, the movement of the lifting and lowering ribs is reduced, thereby reducing the manufacturing length of the driving screw.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. Through the setting of the guide ring and the rotating assembly, when the column is tested for micro cracks, first transfer the detector to the site through the moving seat, and set the guide ring on the outer peripheral side of the column, then drive the lifting seat to lift and turn on the detector through the elevator, so that the detector can detect micro cracks in the column along the height direction. After the detector moves to the top of the column, the lifting seat is driven down by the elevator. When the detector moves down to a low position, the rotating assembly drives the detector to rotate a certain angle around the central axis of the guide ring, and then drives the lifting seat to lift again, so that the detector can change its position and detect the column in the height direction again; repeat this process so that the detector can surround the column, realize comprehensive concrete micro crack detection on the column, improve the efficiency of micro crack detection on the column, and reduce the workload of operators;

[0029] 2. Through the setting of the positioning rod and the positioning spring, the sliding plate is displaced toward the center of the rotating ring under the action of the positioning spring, forcing the positioning rod to abut against the outer wall of the column to control the distance between the detector and the column. When the detector rotates around the central axis of the rotating ring, under the action of the positioning spring, the mounting seat can automatically adjust the position so that the distance between the detector and the column remains unchanged, that is, the distance between the detector and the column before rotation and the distance between the detector and the column after rotation always remain the same, thereby improving the detection accuracy. In other words, the setting of the positioning rod and the positioning spring can achieve the effect that when the guide ring is sleeved on the outer peripheral side of the column, there is no need to maintain a high coaxiality between the guide ring and the column, thereby improving the operational convenience of the overall structure;

[0030] 3. Through the setting of the limit sleeve, the limit ball and the compression spring, under the action of the compression spring, the limit sleeve normally covers the embedding groove and pushes the limit ball to partially embed into the clamping ring groove to limit the sliding of the positioning rod. When it is necessary to adjust the distance between the detector and the column, pull the limit sleeve to force the limit sleeve to disengage from the embedding groove and release the limiting effect on the limit ball. At this time, the positioning rod can be pulled to slide to adjust the distance between the detector and the column. After the distance adjustment is completed, release the limit sleeve. The limit sleeve will cover the embedding groove again under the action of the compression spring, thereby forcing the limit ball to remain embedded in the current clamping ring groove, improving the convenience of adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic diagram of the overall structure of Example 1;

[0032] Figure 2 is a partial cross-sectional view of the drive assembly of embodiment 1;

[0033] Figure 3 is a schematic diagram of the structure of the guide ring and the rotating ring in Example 1;

[0034] Figure 4 is a schematic structural diagram of a rotating assembly according to Embodiment 1;

[0035] Figure 5 is a partial cross-sectional view of a positioning rod according to Embodiment 2;

[0036] Figure 6 yes Figure 5 The enlarged view of point A in the middle;

[0037] Figure 7 is a partial cross-sectional view of a push rod according to Embodiment 3;

[0038] Figure 8 It is a partial cross-sectional view of the flip assembly according to the fourth embodiment.

[0039] Description of reference numerals: 1. moving seat; 11. walking wheel; 12. supporting rod; 13. avoiding gap; 2. lifting machine; 3. detecting instrument; 31. sliding plate; 32. positioning rod; 321. snap ring groove; 33. positioning spring; 34. adjusting sleeve; 341. embedding groove; 35. adjusting assembly; 351. limiting sleeve; 352. limiting ball; 353. compression spring; 4. lifting seat; 41. first rotating rod; 42. second rotating rod; 43. lifting main rib; 431. sliding groove; 44. lifting secondary rib; 441. third rotating rod; 442. limiting column; 45. flip assembly; 451. flip gear; 452, flip rack; 5, guide ring; 51, guide arc bar; 511, rotating arc slot; 6, rotating assembly; 61, rotating disk; 611, pushing slot; 62, rocker arm; 621, tension spring; 622, push block; 63, push rod; 64, rotating gear ring; 641, arc rack; 65, rotating gear; 66, first bevel gear; 67, second bevel gear; 7, rotating ring; 71, rotating arc bar; 72, mounting plate; 8, driving assembly; 81, driving block; 82, driving screw; 83, push rod; 84, driving gear; 85, driving rack; 86, reset spring; 87, driving motor; 9, column. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1 -Attached Figure 8 This application is described in further detail.

[0041] Example 1

[0042] The embodiment of the present application discloses a concrete micro-crack detection system.

[0043] Reference Figure 1 A concrete micro-crack detection system includes a moving seat 1, a lift 2 and a detector 3. A plurality of walking wheels 11 are installed on the bottom wall of the moving seat 1, and a plurality of support rods 12 are installed on the side wall of the moving seat 1. The support rods 12 are vertically arranged, and the support rods 12 are threadedly connected to the moving seat 1 (the threads of the support rods 12 are not shown in the figure) so as to be able to be lifted and lowered. The support rods 12 are used to abut the ground to fix the position of the moving seat 1; an avoidance gap 13 for avoiding a column 9 is opened on the side wall of the moving seat 1.

[0044] Reference Figure 1 , Figure 2The lift 2 is installed on the moving seat 1. In this embodiment, the lift 2 is set as an aluminum alloy lift 2 (the aluminum alloy lift 2 is a prior art structure, and its structure is not elaborated too much here); a lift seat 4 is fixedly installed on the lifting arm of the lift 2, and the lift seat 4 includes a lifting main rib 43 and two lifting secondary ribs 44. The lifting main rib 43 is fixedly connected to the lifting arm of the lift 2, and the two lifting secondary ribs 44 are both installed on the lifting main rib 43. The length direction of the lifting secondary rib 44 is perpendicular to the length direction of the lifting main rib 43, and the two lifting secondary ribs 44 are spaced apart along the length direction of the lifting main rib 43.

[0045] Reference Figure 1 , Figure 2 , the two lifting secondary ribs 44 are both slidably connected to the lifting main rib 43, and the lifting main rib 43 is provided with a driving assembly 8 for driving the two lifting secondary ribs 44 to move closer to or away from each other; a sliding groove 431 is provided on the side wall of the lifting main rib 43 close to the lifting secondary rib 44, and both ends of the sliding groove 431 are extended along the length direction of the lifting main rib 43; the driving assembly 8 includes a driving block 81, a driving screw 82 and a driving member, two driving blocks 81 are provided and the two driving blocks 81 are slidably installed in the sliding groove 431, and the two driving blocks 81 are correspondingly arranged with the two lifting secondary ribs 44; in this embodiment, one end of each lifting secondary rib 44 close to the lifting main rib 43 is fixedly installed on the corresponding driving block 81, and the lifting secondary rib 44 is slidably installed on the lifting main rib 43 through the driving block 81.

[0046] The two ends of the driving screw 82 are rotatably mounted on the inner wall of the sliding groove 431. The length direction of the driving screw 82 is consistent with the length direction of the lifting main rib 43. The driving screw 82 is inserted into the two driving blocks 81. The driving screw 82 and the two driving blocks 81 are both threadedly connected, and the thread rotation direction between the driving screw 82 and the two driving blocks 81 is set to be opposite, so that when the driving screw 82 rotates, the two lifting secondary ribs 44 can approach or move away from each other. The driving member is set on the lifting main rib 43 to drive the driving screw 82 to rotate. In this embodiment, the driving member is set as a driving motor 87. The driving motor 87 is fixedly mounted on one end of the lifting main rib 43. The output shaft of the driving motor 87 penetrates the sliding groove 431 and is coaxially connected to the driving screw 82.

[0047] Reference Figure 2 , Figure 3 The lifting seat 4 is provided with a guide ring 5, which is sleeved on the outer peripheral side of the column 9. The guide ring 5 includes two guide arc bars 51. The two guide arc bars 51 are arranged corresponding to the two lifting secondary ribs 44. Each guide arc bar 51 is fixedly installed on the side wall of the corresponding lifting secondary rib 44. The guide arc bar 51 is in an arc shape. When the two lifting secondary ribs 44 are close to each other, the two guide arc bars 51 are combined to form an annular guide ring 5.

[0048] A rotating ring 7 is coaxially arranged on the guide ring 5, and the rotating ring 7 is rotatably connected to the guide ring 5. A rotating arc groove 511 is opened on the surface of each guide arc bar 51. The rotating ring 7 includes two rotating arc bars 71, and the rotating arc bars 71 are arranged in an arc shape. The two rotating arc bars 71 are arranged corresponding to the two guide arc bars 51. Each rotating arc bar 71 is slidably installed in the rotating arc groove 511 of the corresponding guide arc bar 51. When the two lifting secondary ribs 44 approach each other, the two rotating arc bars 71 are combined to form an annular rotating ring 7.

[0049] Reference Figure 2 , Figure 3 A mounting plate 72 is fixedly mounted on one of the rotating arc bars 71 of the rotating ring 7, the detector 3 is fixedly mounted on the mounting plate 72 of the rotating ring 7, and the detector 3 is rotatably mounted on the guide ring 5 through the rotating ring 7; in this embodiment, the detector 3 is an acoustic wave detector 3 (the acoustic wave detector 3 is a prior art structure, and its structure is not elaborated too much here); a rotating assembly 6 is arranged between the lifting seat 4 and the moving seat 1, and the rotating assembly 6 is used to force the detector 3 to intermittently rotate around the central axis of the guide ring 5.

[0050] Reference Figure 1 , Figure 4 The rotating assembly 6 includes a rotating disk 61, a swing rod 62, a top rod 63 and a linkage member. A first rotating rod 41 and a second rotating rod 42 are rotatably mounted on one of the lifting secondary ribs 44 of the lifting seat 4. The rotating disk 61 is coaxially fixed to the first rotating rod 41. The rotating disk 61 is rotatably mounted on the lifting secondary rib 44 of the lifting seat 4 through the first rotating rod 41. A plurality of pushing grooves 611 are provided on the outer peripheral wall of the rotating disk 61. The plurality of pushing grooves 611 are spaced apart around the central axis of the rotating disk 61. The swing rod 62 is in the shape of a long strip, one end of which is hinged to the side wall of the lifting auxiliary rib 44, and the side wall of the lifting auxiliary rib 44 is fixedly installed with a limit column 442. A tension spring 621 is installed between the swing rod 62 and the lifting auxiliary rib 44, one end of the tension spring 621 is hooked to the side wall of the lifting auxiliary rib 44, and the other end is hooked to the swing rod 62. The tension spring 621 normally forces the swing rod 62 to rotate until it abuts against the limit column 442, and when the swing rod 62 abuts against the limit column 442, the swing rod 62 rotates to a horizontal state.

[0051] A push block 622 is hinged on the side wall of the rocker arm 62, and a torsion spring (not shown in the figure) is installed at the hinge between the push block 622 and the rocker arm 62. The torsion spring forces the push block 622 to embed into the push groove 611 of the rotating disk 61. When the rocker arm 62 swings, the push block 622 forces the rotating disk 61 to rotate; the push rod 63 is vertically arranged, and the lower end of the push rod 63 is fixedly installed on the moving seat 1. When the elevator 2 forces the guide ring 5 to descend to the lowest position, the push rod 63 pushes the rocker arm 62 to swing.

[0052] Reference Figure 2 , Figure 4The linkage member is arranged between the rotating disk 61 and the rotating ring 7, and the linkage member is used to drive the rotating disk 61 and the rotating ring 7 to rotate synchronously; in this embodiment, the linkage member includes a rotating ring gear 64, a rotating gear 65, a first bevel gear 66 and a second bevel gear 67, the rotating ring gear 64 is coaxially fixed to the outer peripheral wall of the rotating ring 7, the rotating gear 65 is coaxially fixed to the outer peripheral wall of the second rotating rod 42, and the rotating ring gear 64 and the rotating gear 65 are meshed for transmission; the first bevel gear 66 is coaxially fixed to the first rotating rod 4 1, the second bevel gear 67 is coaxially fixed to the outer peripheral wall of the second rotating rod 42, and the first bevel gear 66 and the second bevel gear 67 are meshed and transmitted; in this embodiment, the rotating ring gear 64 includes two arc-shaped racks 641, and the two arc-shaped racks 641 are correspondingly arranged with the two rotating arc bars 71, and each arc-shaped rack 641 is fixedly installed on the outer surface of the corresponding rotating arc bar 71. When the two rotating arc bars 71 are combined to form the rotating ring 7, the two arc-shaped racks 641 are combined to form the rotating ring gear 64.

[0053] It should be noted that the present application is for micro-crack detection of a column 9 having a certain height, that is, the present application is for micro-crack detection of the middle and upper sections of the column 9. Due to the space occupied by the moving seat 1 and the elevator 2, the micro-crack detection at the connection point between the column 9 and the ground (the lower section of the column 9) is not within the scope of consideration of the present application. Since the lower section of the column 9 is close to the ground, in actual detection, the lower section of the column 9 can be directly detected for micro-cracks using the detector 3 alone.

[0054] The implementation principle of Example 1 of the present application is as follows: when performing micro-crack detection on the column 9, first, the detector 3 is transferred to the site through the moving seat 1, and the moving seat 1 is moved to make the column 9 move into the avoidance gap 13 of the moving seat 1, and then the driving screw 82 is driven to rotate, driving the two lifting auxiliary ribs 44 to approach each other, so that the two guide arc bars 51 are combined to form an annular guide ring 5, and the two rotating arc bars 71 are combined to form an annular rotating ring 7.

[0055] Then, the lifting seat 4 is driven by the lift 2 to lift and the detector 3 is turned on, so that the detector 3 can detect micro cracks on the column 9 in the height direction. After the detector 3 moves to the top of the column 9, the lifting seat 4 is driven downward by the lift 2. When the detector 3 moves downward to a low position, the top rod 63 forces the swing rod 62 to rotate upward by a certain angle. The swing rod 62 can force the rotating disk 61 to rotate by a certain angle through the push block 622, and the rotating ring 7 can rotate synchronously with the rotating disk 61 by a certain angle to adjust the orientation of the detector 3. After the orientation of the detector 3 is adjusted, the lifting seat 4 is driven by the lift 2 to lift, so as to continue to detect the column 9 in a different orientation.

[0056] After the swing rod 62 is separated from the top rod 63, it swings back to its original position under the action of the tension spring 621, so that the push block 622 is transferred to the next push groove 611 of the rotating disk 61, so that when the lifting seat 4 descends again, it can continue to push the rotating disk 61 to rotate, thereby realizing intermittent rotation of the detector 3 around the central axis of the guide ring 5, so that the detector 3 can surround the column 9, realize comprehensive concrete micro-crack detection on the column 9, improve the efficiency of micro-crack detection on the column 9, and reduce the workload of operators.

[0057] Example 2

[0058] The embodiment of the present application discloses a concrete micro-crack detection system.

[0059] The difference between the concrete micro-crack detection system disclosed in the embodiment of the present application and the embodiment 1 is that:

[0060] Reference Figure 5 , Figure 6 In this embodiment, a sliding plate 31 is fixedly installed at the bottom of the detector 3, and the sliding plate 31 is slidably installed on the mounting plate 72 of the rotating ring 7 so as to be able to move radially along the rotating ring 7; the sliding plate 31 is connected to a positioning rod 32, and a positioning spring 33 is installed between the sliding plate 31 and the mounting plate 72, and the positioning spring 33 forces the sliding plate 31 to move toward the center of the rotating ring 7 and forces the positioning rod 32 to abut against the outer peripheral wall of the column 9; an adjusting sleeve 34 is fixedly installed on the side wall of the sliding plate 31 near the column 9, and the end of the positioning rod 32 away from the column 9 is penetrated by the adjusting sleeve 34, and the positioning rod 32 is slidably installed on the sliding plate 31 through the adjusting sleeve 34, and a through hole for the positioning rod 32 to pass through is opened on the side wall of the sliding plate 31 near the adjusting sleeve 34; the adjusting sleeve 34 is provided with an adjusting component 35, and the adjusting component 35 is used to adjust the distance between the sliding plate 31 and the column 9.

[0061] The outer peripheral wall of the positioning rod 32 is provided with a plurality of snap ring grooves 321, which are arranged in an annular shape around the central axis of the positioning rod 32, and the plurality of snap ring grooves 321 are arranged at intervals along the length direction of the positioning rod 32; the adjustment component 35 includes a limit sleeve 351, a limit ball 352 and a compression spring 353, the limit sleeve 351 is slidably sleeved on the outer peripheral wall of the adjustment sleeve 34, and the outer peripheral wall of the adjustment sleeve 34 is provided with a plurality of embedded grooves 341, and the plurality of embedded grooves 341 are arranged at intervals around the central axis of the adjustment sleeve 34, and each embedded groove 341 penetrates the adjustment sleeve 34. 4; a plurality of limiting balls 352 are provided and are arranged corresponding to the plurality of embedding grooves 341, and each limiting ball 352 is embedded in the corresponding embedding groove 341; a compression spring 353 is sleeved on the outer peripheral side of the adjustment sleeve 34, one end of the compression spring 353 is fixedly connected to the limiting sleeve 351, and the other end is fixedly connected to the sliding plate 31, the compression spring 353 forces the limiting sleeve 351 to cover all the embedding grooves 341, and when the limiting sleeve 351 covers the embedding groove 341, the limiting sleeve 351 pushes the limiting ball 352 to partially embed into the clamping ring groove 321.

[0062] It should be noted that two anti-slip rings are fixedly installed on the inner wall of each mounting groove 341. The two anti-slip rings are located at the two end notches of the mounting groove 341. The inner diameter of the anti-slip ring is smaller than the inner diameter of the limiting ball 352. The anti-slip ring is used to block the limiting ball 352 and reduce the possibility of the limiting ball 352 falling out of the mounting groove 341.

[0063] The implementation principle of Example 2 of the present application is as follows: through the setting of the positioning rod 32 and the positioning spring 33, the sliding plate 31 is displaced toward the center of the rotating ring 7 under the action of the positioning spring 33, forcing the positioning rod 32 to abut against the outer peripheral wall of the column 9 to control the distance between the detector 3 and the column 9. When the detector 3 rotates around the central axis of the rotating ring 7, under the action of the positioning spring 33, the mounting seat can automatically adjust the position, so that the distance between the detector 3 and the column 9 remains unchanged, that is, the distance between the detector 3 and the column 9 before the rotation and the distance between the detector 3 and the column 9 after the rotation are always kept the same, thereby improving the detection accuracy. In other words, the setting of the positioning rod 32 and the positioning spring 33 can achieve the effect that when the guide ring 5 is sleeved on the outer peripheral side of the column 9, there is no need to maintain a high coaxiality between the guide ring 5 and the column 9, thereby improving the convenience of operation of the overall structure.

[0064] Under the action of the compression spring 353, the limiting sleeve 351 normally covers the embedding groove 341, and pushes the limiting ball 352 to partially embed into the clamping ring groove 321 to limit the sliding of the positioning rod 32. When it is necessary to adjust the distance between the detector 3 and the column 9, the limiting sleeve 351 is pulled to force the limiting sleeve 351 to disengage from the embedding groove 341, and the limiting effect on the limiting ball 352 is released. At this time, the positioning rod 32 can be pulled to slide to adjust the distance between the detector 3 and the column 9. After the distance adjustment is completed, the limiting sleeve 351 is released. The limiting sleeve 351 re-covers the embedding groove 341 under the action of the compression spring 353, thereby forcing the limiting ball 352 to remain embedded in the current clamping ring groove 321, thereby improving the convenience of adjustment.

[0065] Example 3

[0066] The embodiment of the present application discloses a concrete micro-crack detection system.

[0067] The difference between the concrete micro-crack detection system disclosed in the embodiment of the present application and the embodiment 1 is that:

[0068] Reference Figure 7 In this embodiment, the driving member includes a push rod 83, a driving gear 84, a driving rack 85 and a return spring 86. The push rod 83 is slidably installed on the lifting main rib 43 and can slide along the length direction of the lifting secondary rib 44. The push rod 83 is located between the two lifting secondary ribs 44, and one end of the push rod 83 is used for abutting the outer peripheral wall of the column 9; the driving gear 84 is coaxially fixed to the outer peripheral wall of the driving screw 82, and the driving rack 85 is installed on the side wall of the push rod 83. The length direction of the driving rack 85 is consistent with the displacement direction of the push rod 83, and the driving rack 85 and the driving gear 84 are meshed for transmission; the return spring 86 is installed between the push rod 83 and the lifting main rib 43. The return spring 86 forces the push rod 83 to move closer to the column 9 and forces the two driving blocks 81 to move away from each other.

[0069] The implementation principle of the embodiment 3 of the present application is as follows: under normal conditions, the reset spring 86 forces the two driving blocks 81 to move away from each other, so that the two guide arcs 51 are in a separated state, so that the column 9 can enter; the lifting main ribs 43 are driven to move by the moving seat 1, so that the column 9 is forced to move between the two guide arcs 51. In this process, the outer wall of the column 9 is blocked by the push rod 83. As the moving seat 1 continues to move, the driving gear 84 and the driving rack 85 are meshed and driven, thereby driving the driving screw 82 to rotate and forcing the two lifting secondary ribs 44 to approach each other, so that the two guide arcs 51 are combined to form a guide ring 5 sleeved on the column 9. After the detection is completed, the moving seat 1 is driven away from the column 9, and the push rod 83 forces the driving screw 82 to reverse under the action of the reset spring 86, so that the two lifting secondary ribs 44 can be driven away from each other, which greatly improves the convenience of disassembly and assembly of the guide ring 5.

[0070] Example 4

[0071] The embodiment of the present application discloses a concrete micro-crack detection system.

[0072] The difference between the concrete micro-crack detection system disclosed in the embodiment of the present application and the embodiment 1 is that:

[0073] Reference Figure 8 In this embodiment, a third rotating rod 441 is fixedly installed at one end of the lifting secondary rib 44 close to the lifting main rib 43, and the third rotating rod 441 is rotatably installed on the corresponding driving block 81 in the lifting main rib 43. One end of the lifting secondary rib 44 is rotatably connected to the corresponding driving block 81 through the third rotating rod 441; for the convenience of description, the end of the lifting secondary rib 44 away from the lifting main rib 43 is defined as the free end of the lifting secondary rib 44 below, and the lifting main rib 43 is provided with a flipping assembly 45. When the two driving blocks 81 are away from each other, the flipping assembly 45 forces the lifting secondary rib 44 to swing around the third rotating rod 441, and the distance between the free ends of the two lifting secondary ribs 44 is enlarged.

[0074] The flip assembly 45 includes a flip gear 451 and a flip rack 452. The flip gear 451 is coaxially fixed to the outer peripheral wall of the third rotating rod 441. The flip rack 452 is fixedly installed on the bottom wall of the lifting main rib 43. Both ends of the flip rack 452 are extended along the length direction of the lifting main rib 43. The flip gear 451 and the flip rack 452 are meshed for transmission. When the two driving blocks 81 move away from each other, the free ends of the two lifting auxiliary ribs 44 move away from each other.

[0075] The implementation principle of Example 4 of the present application is: through the setting of the third rotating rod 441, the flip gear 451 and the flip rack 452, when the two driving blocks 81 move away from each other, the combination of the flip gear 451 and the flip rack 452 forces the lifting and lowering auxiliary ribs 44 to swing, and the distance between the free ends of the two lifting and lowering auxiliary ribs 44 is enlarged, so that the column 9 can move out from between the two guide arc bars 51. By rotating the lifting and lowering auxiliary ribs 44, the movement of the lifting and lowering auxiliary ribs 44 is reduced, thereby reducing the manufacturing length of the driving screw 82.

[0076] The above are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A concrete micro-crack detection system, characterized in that: The invention comprises a moving seat (1), a lifting machine (2) and a detector (3), wherein the lifting machine (2) is mounted on the moving seat (1), a lifting seat (4) is mounted on the lifting arm of the lifting machine (2), the lifting seat (4) is provided with a guide ring (5), the guide ring (5) is sleeved on the outer peripheral side of a column (9), and the detector (3) is rotatably mounted on the guide ring (5) so as to be able to rotate around the central axis of the guide ring (5); a rotating assembly (6) is provided between the lifting seat (4) and the moving seat (1), and the rotating assembly (6) The invention is used to force the detector (3) to intermittently rotate around the central axis of the guide ring (5); a rotating ring (7) is coaxially arranged on the guide ring (5); the rotating ring (7) and the guide ring (5) are rotatably connected; the detector (3) is arranged on the rotating ring (7); the detector (3) is rotatably mounted on the guide ring (5) through the rotating ring (7); the rotating assembly (6) comprises a rotating disk (61), a swing rod (62), a top rod (63) and a linkage member; the rotating disk (61) is rotatably mounted on the lifting seat (4) The outer peripheral wall of the rotating disk (61) is provided with a plurality of push grooves (611), and the plurality of push grooves (611) are arranged at intervals around the central axis of the rotating disk (61); one end of the swing rod (62) is hinged to the lifting seat (4), and a tension spring (621) is provided between the swing rod (62) and the lifting seat (4), and the tension spring (621) forces the swing rod (62) to rotate to a horizontal state; a push block (622) is hinged to the side wall of the swing rod (62), and a torsion spring is provided between the push block (622) and the swing rod (62), and the torsion spring The spring forces the push block (622) to be embedded in the push groove (611) of the rotating disk (61), and when the swing rod (62) swings, the push block (622) forces the rotating disk (61) to rotate; one end of the push rod (63) is connected to the moving seat (1), and when the elevator (2) forces the guide ring (5) to descend to the lowest position, the push rod (63) pushes the swing rod (62) to swing; the linkage member is arranged between the rotating disk (61) and the rotating ring (7) to drive the rotating disk (61) and the rotating ring (7) to rotate synchronously.

2. A concrete micro-crack detection system according to claim 1, characterized in that: The lifting seat (4) is rotatably mounted with a first rotating rod (41) and a second rotating rod (42), respectively; the rotating disk (61) is coaxially arranged on the first rotating rod (41); the rotating disk (61) is rotatably mounted on the lifting seat (4) through the first rotating rod (41); the linkage member comprises a rotating ring gear (64), a rotating gear (65), a first bevel gear (66) and a second bevel gear (67); the rotating ring gear (64) is coaxially arranged on the outer peripheral wall of the rotating ring (7); the rotating gear (65) is coaxially arranged on the outer peripheral wall of the second rotating rod (42); the rotating ring gear (64) and the rotating gear (65) are meshed for transmission; the first bevel gear (66) is coaxially arranged on the outer peripheral wall of the first rotating rod (41); the second bevel gear (67) is coaxially arranged on the outer peripheral wall of the second rotating rod (42); the first bevel gear (66) and the second bevel gear (67) are meshed for transmission.

3. A concrete micro-crack detection system according to claim 1, characterized in that: A sliding plate (31) is provided at the bottom of the detector (3), and the sliding plate (31) is slidably connected to the rotating ring (7) and can be displaced along the radial direction of the rotating ring (7); the sliding plate (31) is connected to a positioning rod (32), and a positioning spring (33) is provided between the sliding plate (31) and the rotating ring (7), and the positioning spring (33) forces the sliding plate (31) to move toward the center of the rotating ring (7) and forces the positioning rod (32) to abut against the outer peripheral wall of the column (9).

4. A concrete micro-crack detection system according to claim 3, characterized in that: The sliding plate (31) is provided with an adjustment sleeve (34), and one end of the positioning rod (32) away from the column (9) is inserted into the adjustment sleeve (34); the adjustment sleeve (34) is provided with an adjustment component (35), and the adjustment component (35) is used to adjust the distance between the sliding plate (31) and the column (9).

5. A concrete micro-crack detection system according to claim 4, characterized in that: The outer peripheral wall of the positioning rod (32) is provided with a plurality of snap ring grooves (321), and the plurality of snap ring grooves (321) are arranged at intervals along the length direction of the positioning rod (32); the adjustment component (35) comprises a limiting sleeve (351), a limiting ball (352) and a compression spring (353), the limiting sleeve (351) is slidably sleeved on the outer peripheral wall of the adjustment sleeve (34), and the outer peripheral wall of the adjustment sleeve (34) is provided with an embedding groove (341 ), the limiting ball (352) is embedded in the embedding groove (341); the compression spring (353) is arranged between the adjustment sleeve (34) and the limiting sleeve (351), the compression spring (353) forces the limiting sleeve (351) to cover the embedding groove (341), and when the limiting sleeve (351) covers the embedding groove (341), the limiting sleeve (351) pushes the limiting ball (352) to be partially embedded in the clamping ring groove (321).

6. A concrete micro-crack detection system according to claim 1, characterized in that: The lifting seat (4) comprises a lifting main rib (43) and two lifting secondary ribs (44), the lifting main rib (43) is connected to the lifting arm of the lift (2), the two lifting secondary ribs (44) are slidably mounted on the lifting main rib (43), and the lifting main rib (43) is provided with a driving assembly (8) for driving the two lifting secondary ribs (44) to move closer to or farther from each other; the guide ring (5) comprises two guide arc bars (51), the two guide arc bars (51) are arranged corresponding to the two lifting secondary ribs (44), and each guide arc bar (51) is mounted on a corresponding lifting secondary rib (44); a rotating arc groove (511) is provided on the surface of each of the guide arc bars (51); the rotating ring (7) comprises two rotating arc bars (71); the two rotating arc bars (71) are arranged corresponding to the two guide arc bars (51); each of the rotating arc bars (71) is slidably installed in the rotating arc groove (511) of the corresponding guide arc bar (51); when the two lifting auxiliary ribs (44) are close to each other, the two guide arc bars (51) are combined to form the annular guide ring (5), and the two rotating arc bars (71) are combined to form the annular rotating ring (7).

7. A concrete micro-crack detection system according to claim 6, characterized in that: The driving assembly (8) comprises a driving block (81), a driving screw rod (82) and a driving member. The lifting main rib (43) is provided with a sliding groove (431). Two driving blocks (81) are provided and both driving blocks (81) are slidably mounted in the sliding groove (431). The two driving blocks (81) are arranged correspondingly to the two lifting secondary ribs (44). Each lifting secondary rib (44) is mounted on a corresponding driving block (81). The lifting secondary rib (44) is driven by the driving block ( 81) is slidably mounted on the lifting main rib (43); both ends of the driving screw rod (82) are rotatably mounted on the inner wall of the sliding groove (431), the driving screw rod (82) is passed through the two driving blocks (81), the driving screw rod (82) and the two driving blocks (81) are both threadedly connected, and the thread rotation directions between the driving screw rod (82) and the two driving blocks (81) are set to be opposite; the driving member is set on the lifting main rib (43) to drive the driving screw rod (82) to rotate.

8. A concrete micro-crack detection system according to claim 7, characterized in that: The driving member comprises a push rod (83), a driving gear (84), a driving rack (85) and a return spring (86); the push rod (83) is slidably mounted on the lifting main rib (43); one end of the push rod (83) is used for abutting against the outer peripheral wall of the column (9); the driving gear (84) is coaxially arranged on the outer peripheral wall of the driving screw rod (82); the driving rack (85) is mounted on the push rod (83); the length direction of the driving rack (85) is consistent with the displacement direction of the push rod (83); the driving rack (85) and the driving gear (84) are meshed and transmitted; the return spring (86) is mounted between the push rod (83) and the lifting main rib (43); the return spring (86) forces the two driving blocks (81) to move away from each other.

9. A concrete micro-crack detection system according to claim 7, characterized in that: A third rotating rod (441) is provided at one end of the lifting secondary rib (44), and the third rotating rod (441) is rotatably mounted on the corresponding driving block (81). One end of the lifting secondary rib (44) is rotatably connected to the corresponding driving block (81) through the third rotating rod (441); the lifting main rib (43) is provided with a flip assembly (45), and when the two driving blocks (81) move away from each other, the flip assembly (45) forces the lifting secondary rib (44) to swing around the third rotating rod (441), and the distance between the free ends of the two lifting secondary ribs (44) is enlarged.

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