A rapid detection device for weld quality of municipal bridge steel structure

Abstract

The invention provides a rapid detection device for the quality of welds of municipal bridge steel structures, comprising a bottom guide frame, which is a rectangular frame structure, a traction assembly being installed in a transverse sliding manner inside the bottom guide frame, the assembly of the traction assembly being connected to a walking assembly, the other end of the walking assembly away from the traction assembly being connected to a probe movable assembly, the interior of the probe movable assembly being inserted with a probe assembly; the top surface of the walking assembly being assembled and connected to a support assembly, the top end of the support assembly being assembled and connected to a back-carrying assembly, the side of the back-carrying assembly being provided with a multi-axis support arm, the end of the multi-axis support arm being connected to an ultrasonic display host; the walking assembly comprising a bottom plate, a clamping block being matched with the support assembly for clamping, a traction plate being arranged horizontally being vertically provided on the outer wall of the base, the traction plate being assembled and connected to the traction assembly; a probe movable assembly being installed in a sliding manner on the other side of the surface of the bottom plate; the invention can perform ultrasonic flaw detection on welds in multiple scenarios of bridges, has high operating efficiency and a wide range of applications.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure bridge weld detection, and in particular to a device for quickly detecting weld quality of a municipal bridge steel structure. Background Art

[0002] Ultrasonic testing of steel structure weld quality is a commonly used non-destructive testing method for detecting defects inside welds. Before testing, it is necessary to select a suitable ultrasonic flaw detector, as well as the corresponding probe, coupling agent, etc. The probe frequency is generally 2.5MHz-10MHz; common coupling agents include glycerin, water, engine oil, chemical paste, etc., and chemical paste is often used after comprehensive consideration; then manually clean the impurities on the weld surface, bring the ultrasonic equipment close to the weld of the steel bridge to be tested, use the ultrasonic probe to emit ultrasonic waves, and then move the ultrasonic probe at a constant speed along the weld, reciprocating 2-3 times; pay attention to the scanning speed during testing, which should usually not exceed 150mm / s to avoid missing defects in the steel structure. For suspected defects, they can be carefully inspected from front to back, left to right, at an angle, and around; operators can judge whether there are defects and the location and size of the defects based on the propagation characteristics of ultrasonic waves in the weld;

[0003] However, there are the following deficiencies in the traditional steel structure bridge weld inspection operation:

[0004] 1. The weld in the middle of the surface of the steel structure bridge is long, and the workers need to squat for a long time to use the probe to operate, which is laborious. At the same time, during the inspection, the ultrasonic display host needs to be held by another worker alone, which is inconvenient for one person to operate;

[0005] 2. There are many welds on steel structure bridges, especially those on the bottom of the bridge. When workers conduct high-altitude inspections, it is inconvenient to carry the ultrasonic display host, and it is not easy for the ultrasonic probe to contact the bridge deck, making remote operation inconvenient.

[0006] In summary, there is a need for a rapid detection device for steel structure weld quality with higher weld detection efficiency. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a device for quickly detecting the quality of welds of municipal bridge steel structures, which solves the problems mentioned in the background technology.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A rapid detection device for the quality of weld seams of municipal bridge steel structures, comprising a straightening and conveying mechanism, the straightening and conveying mechanism is used to straighten and convey copper rod materials, the straightening and conveying mechanism comprises a slitting assembly, the slitting assembly is used to cut the copper rod materials into sections; a stopper assembly is installed at the output end of the straightening and conveying mechanism, and a double-head grinding mechanism is installed at the top and bottom of the stopper assembly; a switching assembly is installed at the output side of the stopper assembly, and two groups of bar material clamping assemblies are symmetrically installed at the top of the switching assembly; a stamping device is installed at the side of the switching assembly;

[0010] The stopper assembly includes a back plate, a first stopper plate, a first spring rod and a first fixing rod; the first fixing rod is fixedly connected to the back plate, the back plate extends vertically downward, the inner wall of the back plate is slidably mounted with a vertically arranged first stopper plate, and the top end of the first stopper plate is mounted with a first spring rod;

[0011] The bar material clamping assembly includes a support tube, a support plate, a second driving rod, an electric clamp and a first motor; the support tube is arranged at the top of the switching assembly, a support plate is slidably installed inside the support tube, a fixed end of the second driving rod is arranged on the bottom surface of the support tube, an output end of the second driving rod is connected to the bottom surface of the support plate, the bottom surface of the electric clamp is rotatably connected to the support plate and a first motor is installed at the connection, the first motor is used to drive the electric clamp to flip vertically; a second stop plate is vertically arranged on the inner side surface of the electric clamp, and an end of the second stop plate is located directly below the first stop plate; the automatic processing equipment includes the following states:

[0012] In the first state, the straightening and conveying mechanism straightens the copper rod material, the end of the straightened copper rod material cooperates with the first stop plate to stop, and the electric clamp clamps and positions the copper rod material;

[0013] In the second state, the cutting assembly cuts the copper rod material into sections to obtain phosphor bronze rods, and the electric clamps clamp and position the phosphor bronze rods in a horizontal state;

[0014] In the third state, the first motor drives the electric clamp to rotate, so that the phosphor bronze rod changes from a horizontal state to a vertical state. The phosphor bronze rod in the vertical state is located between the double-headed grinding mechanisms, and the double-headed grinding mechanisms are actuated to trim and grind both ends of the phosphor bronze rod.

[0015] In the fourth state, the switching assembly drives the bar clamping assembly to rotate horizontally, so that the polished phosphor bronze rod enters the stamping device, and the stamping device performs bright stamping treatment on the phosphor bronze rod to obtain a phosphor bronze ball with a bright appearance.

[0016] Further, the straightening conveying mechanism includes a conveying platform, straightening rollers are symmetrically installed on the surface of the conveying platform, a fixed frame is vertically provided at the outer end of the surface of the conveying platform, and a slitting assembly is installed inside the fixed frame; the slitting assembly includes a first driving rod, an outer frame plate and a cutting blade, the first driving rod is vertically provided on the inner bottom surface of the fixed frame, the bottom end of the first driving rod is provided with an outer frame plate, and a cutting blade is installed inside the outer frame plate; the side wall of the outer frame plate is fixedly connected to the back plate through the first fixing rod;

[0017] In the first state, the first driving rod drives the outer frame plate to move downward once, and the bottom end of the first stop plate abuts against the second stop plate, so that the first stop plate can stop the copper rod material;

[0018] In the second state, the first driving rod drives the outer frame plate to move downward for the second time, and the cutting blade cuts off the copper rod material. At the same time, the outer frame plate drives the back plate to move downward through the first fixing rod, and the second stop plate contacts the first stop plate and compresses the first spring rod;

[0019] In the third state, the first driving rod drives the outer frame plate to move upward, the cutting blade and the first stop plate are lifted up synchronously, and the first stop plate moves to the top of the phosphor bronze rod; the second driving rod drives the support plate to retract into the support tube, so that a rotation gap is left between the phosphor bronze rod and the copper rod material; so as to avoid the first stop plate and the copper rod material blocking the rotation of the phosphor bronze rod in the fourth state.

[0020] The cam is secured to the upper and lower ends of the cam body with a plurality of teeth, the plurality of teeth being connected to the plurality of teeth of the cam body and a plurality of teeth being coupled to the plurality of teeth of the cam body.

[0021] Further, the stamping device includes a feed table, an upper stamping assembly and a lower matching assembly, a side plate is vertically provided on one side of the surface of the feed table, a main through hole is opened on the surface of the feed table, a lower matching assembly is installed on the bottom surface of the feed table, the lower matching assembly is located directly below the main through hole, an upper stamping assembly is installed at intervals directly above the main through hole, the upper stamping assembly is fixedly connected to the side plate, a grinding assembly distributed horizontally is vertically provided inside the side plate, and the grinding assembly is used to grind the crimping convex ring of the phosphor bronze ball;

[0022] The bright stamping process includes the following steps: S1, the bar clamping assembly cooperates with the upper stamping assembly to fix the phosphor bronze rod between the upper stamping assembly and the lower matching assembly; S2, the upper stamping assembly moves downward to press the phosphor bronze rod into a phosphor bronze ball; S3, the upper stamping assembly cooperates with the lower matching assembly to move upward to clamp the upper phosphor bronze ball; S4, the grinding assembly grinds and eliminates the crimping convex ring on the outer wall of the phosphor bronze ball; S5, the polished bright phosphor bronze ball is automatically output.

[0023] Furthermore, the upper stamping assembly includes a third driving rod, an upper matching seat, an upper pressure cylinder and a second spring rod; the third driving rod is fixedly connected to the side plate, the third driving rod is vertically arranged, the bottom end of the third driving rod is vertically provided with an upper matching seat, the bottom surface of the upper matching seat is vertically provided with an upper pressure cylinder, the bottom surface of the upper pressure cylinder is provided with an upper cavity of a spherical structure, a first accommodating hole is provided at the center of the upper matching seat, the bottom end of the first accommodating hole extends to the upper cavity, the second spring rod is installed inside the first accommodating hole, and the bottom end of the second spring rod is rotatably connected to the upper pressure block.

[0024] Furthermore, a 7-shaped lifting rod is provided on the outer wall of the upper matching seat, and the inner side of the bottom end of the lifting rod is rotatably connected to a lifting plate that can only be rotated upward.

[0025] Furthermore, the lower mating assembly includes a lower mating seat, a vertical plate, a rotating rod and a movable plate, a lower cavity of a spherical structure is provided on the surface of the lower mating seat, a second accommodating hole is provided at the center of the lower mating seat, both ends of the second accommodating hole are open structures and the top end is connected with the lower cavity, a lower pressing block is installed inside the second accommodating hole, the bottom end of the lower pressing block is vertically fixedly connected to the rotating rod, a driven gear is provided on the outer wall of the rotating rod, the bottom end of the rotating rod is vertically rotatably connected to the movable plate, a convex plate is provided on the outer end of the movable plate, a third motor is provided on the surface of the movable plate, the output end of the third motor is meshed and connected with the driven gear, a vertical plate is vertically provided on the bottom surface of the lower mating seat, and the side wall of the movable plate is slidably connected to the vertical plate;

[0026] In S1, the bar clamping assembly drives the polished phosphor bronze rod to move to just above the main perforation, the bar clamping assembly is initially loosened, causing the phosphor bronze rod to fall into the lower cavity, the third driving rod drives the upper pressing cylinder to move downward, and the extended upper pressing block presses the top of the phosphor bronze rod.

[0027] Furthermore, the top of the main through hole is an upper matching ring groove, and the bottom is a lower forming ring groove, the inner diameter of the lower forming ring groove is within the qualified outer diameter range of the phosphor bronze ball, the inner diameter of the upper matching ring groove is the same as the outer diameter of the upper pressing cylinder, and an expansion gap is left between the upper pressing cylinder and the upper matching ring groove in the pressed state;

[0028] In S2, the bar clamping assembly is completely loosened and contracted, the third driving rod drives the upper pressing cylinder to move downward, the upper pressing cylinder is inserted into the upper matching ring groove, the upper pressing block gradually retracts and compresses the second spring rod, and the phosphor bronze rod is transformed into a phosphor bronze ball under the joint action of the upper cavity and the lower cavity, and the crimping convex ring on the outer wall of the phosphor bronze ball extends into the expansion gap; at the same time, when the upper pressing cylinder moves to the bottom end, the lifting plate of the lifting rod moves to the bottom of the convex plate;

[0029] S3, the third driving rod drives the upper pressure cylinder to move upward, the second spring rod drives the upper pressure block to maintain the clamping state and gradually extend outward, and at the same time, the lifting plate drives the movable plate to move upward, the movable plate drives the rotating rod and the lower pressure block to move upward, the lower pressure block maintains the clamping state and pushes up the phosphor bronze ball, so that the phosphor bronze ball leaves the lower cavity.

[0030] Furthermore, the grinding assembly includes a sixth driving rod and a grinding plate, the sixth driving rod is vertically arranged on the inner wall of the side plate, and the output end of the sixth driving rod is provided with a grinding plate; in S4, the sixth driving rod drives the grinding plate to fit the crimping convex ring of the phosphor bronze ball, the end of the rod clamping assembly fits and contacts the outer wall of the phosphor bronze ball, the third motor drives the rotating rod to rotate, and the grinding plate grinds and eliminates the crimping convex ring of the outer wall of the phosphor bronze ball.

[0031] Furthermore, a discharge assembly is installed on the inner side surface of the lower matching seat, a fifth driving rod is vertically provided on the outer side surface of the lower matching seat, the lower matching seat is slidably installed on the bottom surface of the unloading platform, the fifth driving rod is installed on the bottom surface of the unloading platform, and the discharge assembly includes a discharge trough and a fourth driving rod; the discharge trough is arranged obliquely downward, the discharge trough is fixedly arranged on the side wall of the lower matching seat, a notch is opened on the inner top end of the discharge trough, a positioning plate is vertically provided on the bottom surface of the discharge trough, the side wall of the positioning plate is fixedly connected to the fourth driving rod, an inclined push plate is provided on the top end of the fourth driving rod, and the push plate is flushly embedded in the notch;

[0032] In S5, the bar clamping assembly and the grinding assembly are retracted, and the fifth driving rod drives the lower matching seat to move and retract. At the same time, the discharge chute moves to the bottom of the main perforation, the lifting plate moves and separates from the convex plate, and the movable plate falls under the action of gravity. The lower pressing block and the polished phosphor bronze ball fall synchronously, and the lower pressing block is received in the second accommodating hole; the phosphor bronze ball that has been polished to a qualified level passes through the main perforation and falls onto the discharge chute; the phosphor bronze ball that has been polished irregularly will be stuck by the lower forming ring groove, and the fourth driving rod drives the push plate to move upward, and the inclined push plate will push up the stuck phosphor bronze ball and discharge the unqualified phosphor bronze ball.

[0033] The present invention provides a rapid detection device for the weld quality of municipal bridge steel structures. Compared with the prior art, it has the following beneficial effects:

[0034] This device is designed with multiple usage modes and can be used to detect welds at multiple locations on steel structure bridges, as follows:

[0035] 1. The back-carrying assembly can be carried so that the ultrasonic display host can be placed in front of the operator. In this way, the operator only needs to hold the probe assembly to operate, and no one needs to occupy one hand to hold the ultrasonic display host or other personnel to assist. One person can complete the operation independently, which is more efficient and suitable for weld inspection in uneven and narrow areas;

[0036] 2. The backpack component can also be used in conjunction with the walking component through the support component. The operator only needs to push the backpack component to drive the walking component to move along the weld. The probe movable component can drive the probe component to swing automatically for contact detection, which is suitable for long-distance detection scenarios. At the same time, the operator no longer needs to bend over to work, making the operation easier;

[0037] 3. For large bridges, there are long longitudinal welds on their surfaces. In this case, the walking assembly can be assembled with the bottom guide frame. The operator first places the bottom guide frame at the bridge weld, and then just pushes the walking assembly. The bottom guide frame can ensure that the walking assembly moves in a straight line and will not move or deviate, thus solving the problem of easy deviation of the walking assembly when pushed over long distances. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 A schematic diagram of the structure of a rapid detection device for weld quality of a municipal bridge steel structure of the present invention is shown;

[0040] Figure 2 A schematic diagram of the structure of the backpack assembly of the present invention is shown;

[0041] Figure 3 A schematic diagram of the support assembly structure of the present invention is shown;

[0042] Figure 4 A schematic diagram of the structure of the walking assembly of the present invention is shown;

[0043] Figure 5 A schematic diagram of the connection structure between the clamping plate and the clamping block of the present invention is shown;

[0044] Figure 6 A schematic diagram of the bottom structure of the walking assembly of the present invention is shown;

[0045] Figure 7 Shows Figure 6 A schematic diagram of the enlarged structure at point A;

[0046] Figure 8 A schematic diagram of the connection structure between the probe assembly and the linkage plate of the present invention is shown;

[0047] Fig. 9 A schematic diagram of the probe assembly insertion structure of the present invention is shown;

[0048] Fig.10 A schematic diagram of the driving gear lifting structure of the present invention is shown;

[0049] Fig.11 A schematic diagram of the internal structure of the side cover of the present invention is shown;

[0050] Fig.12 A schematic diagram of the driving gear and weight lowering structure of the present invention is shown;

[0051] Fig.13 A schematic diagram of the structure of the regulating block of the present invention is shown;

[0052] Fig.14 A schematic structural diagram of a weld pretreatment assembly of the present invention is shown;

[0053] As shown in the figure:

[0054] 1. bottom guide frame, 11. rear end plate, 13. upper gear rail, 14. lower guide rail, 12. front end plate, 2. traction assembly, 21. outer plate, 211. first slide groove, 22. cross plate, 23. inner plate, 231. second slide groove, 24. floating rod, 241. weight block, 242. positioning plate, 243. first spring rod, 25. adjustment block, 251. first drive rod, 252. first contact block, 253. second contact block, 26. first motor, 261 , second spring rod, 27, driving gear, 28, guide slider, 29, middle plate, 291, slot, 292, spring locking rod, 3, walking assembly, 31, bottom plate, 311, through slot, 32, base, 33, roller, 34, traction plate, 35, side plate, 36, third spring rod, 37, clamping plate, 371, clamping block, 4, probe movable assembly, 41, support rod, 42, movable block, 421, horizontal storage slot, 422, vertical storage slot, 423, the first a spring, 43, linkage plate, 431, rectangular frame, 432, cover plate, 433, L plate, 44, swing assembly, 441, transfer rod, 442, first bevel gear, 443, constraint seat, 444, linkage rod, 445, second bevel gear, 446, swing rod, 447, swing column, 5, support assembly, 51, main rod, 52, clamping plate, 521, clamping hole, 53, lower assembly plate, 54, upper assembly plate, 55, handle rod, 56, sleeve, 57, top seat, 57 1. reserved hole, 6. backpack assembly, 61. back plate, 62. assembly column, 63. hook, 64. backpack frame, 65. strap, 7. ultrasonic display host, 71. multi-axis support arm, 8. weld pretreatment assembly, 81. box body, 82. dust removal roller brush, 83. negative pressure box, 84. dust suction pipe, 85. extrusion plate, 86. lower pressure tooth plate, 87. second motor, 9. probe assembly, 91. ultrasonic probe, 92. plug-in plate, 921. positioning block, 93. second spring. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] Embodiment 1

[0057] In order to solve the technical problems in the background technology, the following embodiments are provided:

[0058] Combination Figure 1-Figure 14As shown, a rapid detection device for the quality of welds of municipal bridge steel structures provided by the present invention comprises a bottom guide frame 1, the bottom guide frame 1 is a rectangular frame 431 frame structure, a traction component 2 is installed in the bottom guide frame 1 for transverse sliding, the traction component 2 is assembled and connected to a walking component 3, the other end of the walking component 3 away from the traction component 2 is connected to a probe movable component 4, and a probe component 9 is inserted in the probe movable component 4; the top surface of the walking component 3 is assembled and connected to a support component 5, the top end of the support component 5 is assembled and connected to a back-bearing component 6, a multi-axis support arm 71 is provided on the side of the back-bearing component 6, and the end of the multi-axis support arm 71 is connected to an ultrasonic display host 7;

[0059] The walking assembly 3 includes a bottom plate 31, a base 32 is provided on one side of the surface of the bottom plate 31, and side plates 35 are symmetrically provided on the surface of the base 32. A third spring rod 36 is installed on the inner wall of each group of side plates 35, and a clamping plate 37 is provided at the inner end of the third spring rod 36. A clamping block 371 is provided in the middle of the inner wall of the clamping plate 37. The clamping block 371 cooperates with the clamping support assembly 5. A horizontally arranged traction plate 34 is vertically provided on the outer wall of the base 32, and the traction plate 34 is assembled and connected to the traction assembly 2; a probe movable assembly 4 is slidably installed on the other side of the surface of the bottom plate 31, and a roller 33 is installed on the bottom surface of the bottom plate 31;

[0060] The device includes the following usage modes:

[0061] Mode 1: In this mode, the device uses components including a backpack component 6, a probe component 9 and an ultrasound display host 7. When working, the operator carries the backpack component 6 on his back and holds the probe component 9, and adjusts the ultrasound display host 7 to be in front of him.

[0062] Mode 2: In this mode, the device uses components that are added to Mode 1, including a support component 5, a walking component 3, and a probe movable component 4. When working, the walking component 3 is placed at the weld, and the probe movable component 4 drives the probe component 9 to move back and forth to detect the quality of the weld.

[0063] Mode 3. In this mode, the device uses components that add a traction component 2 and a bottom guide frame 1 based on Mode 2; when working, the mobile guide is placed on the bridge deck weld, the walking component 3 is connected to the traction component 2, and the walking component 3 moves along the bottom guide frame 1 to quickly complete the inspection of long-distance bridge deck welds.

[0064] In the above scheme:

[0065] This device is designed with multiple usage modes and can be used to detect welds at multiple locations on steel structure bridges, as follows:

[0066] 1. The back-carrying assembly can be carried so that the ultrasonic display host can be placed in front of the operator. In this way, the operator only needs to hold the probe assembly to operate, and no one needs to occupy one hand to hold the ultrasonic display host or other personnel to assist. One person can complete the operation independently, which is more efficient and suitable for weld inspection in uneven and narrow areas;

[0067] 2. The backpack component can also be used in conjunction with the walking component through the support component. The operator only needs to push the backpack component to drive the walking component to move along the weld. The probe movable component can drive the probe component to swing automatically for contact detection, which is suitable for long-distance detection scenarios. At the same time, the operator no longer needs to bend over to work, making the operation easier;

[0068] 3. For large bridges, there are long longitudinal welds on their surfaces. In this case, the walking assembly can be assembled with the bottom guide frame. The operator first places the bottom guide frame at the bridge weld, and then just pushes the walking assembly. The bottom guide frame can ensure that the walking assembly moves in a straight line and will not move or deviate, thus solving the problem of easy deviation of the walking assembly when pushed over long distances.

[0069] In this embodiment, the backpack component 6 includes a back plate 61, and two groups of backpack frames 64 are provided on both sides of the outer wall of the back plate 61, and a strap 65 is provided between the two groups of backpack frames 64. The side wall of the back plate 61 is connected to the multi-axis support arm 71, and the end ball head of the multi-axis support arm 71 is rotatably connected to the ultrasound display host 7. An assembly column 62 is provided in the middle of the back side of the back plate 61, and the assembly column 62 is connected to the support component 5. Hooks 63 are symmetrically provided on the back side of the back plate 61; in mode 1, it includes the following working states: in the first state, the operator carries the backpack component 6 on his back to perform ground operations; in the second state, the hook 63 is connected to an external crane, and the operator carries the backpack component 6 on his back to perform high-altitude operations.

[0070] In the above scheme:

[0071] 1. The multi-axis support arm can support the ultrasound display host. At the same time, the position of the ultrasound display host can be adjusted to facilitate the operator to view;

[0072] 2. When carrying the backpack, the operator's arms pass through the backpack frame, the straps can stop the arms from the outside, and the backboard is placed on the operator's back;

[0073] 3. Since there are welds on the bottom of the bridge that need to be inspected, the operator needs to operate in mid-air. Therefore, a hook is set on the back plate to facilitate the connection of the crane, allowing the operator to operate at high altitude in the mode.

[0074] In this embodiment, the support assembly 5 includes an upper positioning portion and a lower connecting portion, the upper positioning portion includes a sleeve 56 and a top seat 57, the lower connecting portion includes a main rod 51 and a handle rod 55, a clamping plate 52 is provided at the bottom end of the main rod 51, a polygonal clamping hole 521 is provided at the bottom end of the clamping plate 52, the clamping plate 52 is assembled and connected to the walking assembly 3, a lower assembly plate 53 is vertically provided at the top end of the main rod 51, a handle rod 55 is vertically provided at the middle of the top surface of the lower assembly plate 53, the handle rod 55 is slidably embedded in the sleeve 56, an upper assembly plate 54 is provided on the outer wall of the bottom end of the sleeve 56, the upper assembly plate 54 is connected to the lower assembly plate 53 by screws, a top seat 57 is provided at the top end of the sleeve 56, and a reserved hole 571 is provided inside the top seat 57 for inserting the assembly column 62;

[0075] In mode 2, the working status includes the following:

[0076] In the first state, the upper positioning portion and the lower connecting portion are connected as one, and the operator pushes the backpack component 6 to push the walking component 3 forward;

[0077] In the second state, the upper positioning part and the lower connecting part are separated, and the operator carries the backpack assembly 6 on his back and holds the handle bar 55, and can remotely and manually operate the walking assembly 3 to walk, so as to perform long-distance detection on the difficult-to-reach area.

[0078] In the above scheme:

[0079] 1. When assembling the backpack assembly, insert the assembly column into the reserved hole and then tighten the locking screw to secure it;

[0080] 2. When the upper positioning part is butted with the lower connecting part, the upper assembly plate and the lower assembly plate are connected as one by screws, so that the support assembly can be in a vertical state, and the operator can push the carrying assembly to drive the walking assembly to walk through the support assembly;

[0081] 3. For some inclined areas of the bridge or areas that operators cannot approach, the upper positioning part and the lower connecting part can be separated. The operator holds the handle bar, carries the backpack assembly on his back, and fits the walking assembly to the weld. In this way, when the walking assembly is pushed to move horizontally, the probe assembly can automatically complete the weld detection and realize long-distance operation. At the same time, in this state, the back plate can also be connected to the crane for high-altitude long-distance operation.

[0082] In this embodiment, the probe movable component 4 includes a support rod 41, which is horizontally fixed on the bottom plate 31. The outer wall of the support rod 41 is slidably mounted with a movable block 42, and the movable block 42 is slidably mounted on the surface of the bottom plate 31. The movable block 42 is provided with a horizontal storage groove 421 on the outside and a vertical storage groove 422 on the inside. A linkage plate 43 is installed inside the horizontal storage groove 421, and a probe assembly 9 is vertically inserted in the vertical storage groove 422. A through groove 311 is provided inside the bottom plate 31 for the probe assembly 9 to move downward; a swinging component 44 for driving the linkage plate 43 to move horizontally is installed on the bottom surface of the bottom plate 31.

[0083] In this embodiment, the linkage plate 43 includes a rectangular frame 431 and a cover plate 432. The cover plate 432 is arranged at the top of the rectangular frame 431 and covers the movable block 42. The rectangular frame 431 is arranged on the outer side of the movable block 42 and the bottom plate 31. The bottom surface of the cover plate 432 is provided with an L plate 433. The L plate is horizontally inserted into the horizontal receiving groove 421. The horizontal receiving groove 421 is provided with a first spring 423, and the first spring is connected to the L plate.

[0084] The swing assembly 44 includes a transfer rod 441 and a constraint seat 443. The transfer rod 441 is rotatably arranged on the bottom surface of the base plate 31. A first bevel tooth 442 is provided in the middle of the outer wall of the transfer rod 441. The constraint seat 443 is arranged in the middle of the bottom surface of the bottom surface. A linkage rod 444 is rotatably passed through the internal rotation of the constraint seat 443. The linkage rod 444 is vertically distributed with the transfer rod 441. A second bevel tooth 445 meshingly connected with the first bevel tooth 442 is provided at the inner end of the linkage rod 444. The outer end of the linkage rod 444 is connected to a rocker rod 446. A rocker column 447 is vertically provided on the inner wall of the outer end of the rocker rod 446. The rocker column 447 is inserted into the rectangular frame 431.

[0085] In the above scheme:

[0086] 1. When the transfer rod rotates, it can drive the first bevel gear to rotate, the first bevel gear drives the second bevel gear and the linkage rod to rotate, the linkage rod drives the swing rod to rotate in a circle, the swing rod drives the swing column to rotate, the swing column drives the rectangular frame to move horizontally, the rectangular frame drives the movable block and the probe assembly to move synchronously through the L plate, and the bottom end of the probe assembly can move back and forth to detect the weld;

[0087] 2. When the cover plate moves outward and drives the L plate to move, the first spring can be stretched. When the cover plate loses the external pulling force, the first spring drives the L plate and the cover plate to move inward and reset, and the horizontal storage groove can guide the translation of the L plate.

[0088] In this embodiment, the probe assembly 9 includes an ultrasonic probe rod 91, which is T-shaped. A plug plate 92 is slidably installed on the outer wall of the ultrasonic probe rod 91. A positioning block 921 is provided on the inner wall of the plug plate 92. The positioning block 921 is inserted into the vertical storage groove 422, and the cover plate 432 stops the positioning block 921 from above; a second spring 93 is connected to the top of the plug plate 92; when unlocking the probe assembly 9, the linkage plate 43 is pulled outward, the cover plate 432 is separated from the positioning block 921, and the operator can extract the probe assembly 9.

[0089] In the above scheme:

[0090] 1. During the reciprocating movement, the ultrasonic probe will push up and compress the second spring when it moves up and down, ensuring that the ultrasonic probe is always in contact with the weld;

[0091] 2. When installing the ultrasonic probe, insert the positioning block into the vertical storage slot, and then close the cover plate to stop above the positioning block to achieve the positioning of the probe assembly; when the probe assembly needs to be removed, pull out the cover plate to lift up and pull out the probe assembly.

[0092] Embodiment 2

[0093] In this embodiment, the bottom guide frame 1 includes a rear end plate 11, a front end plate 12 and a guide rail group. Two guide rail groups are symmetrically arranged between the rear end plate 11 and the front end plate 12. The traction assembly 2 includes a middle plate body 29 and a side cover body. A slot 291 is opened inside the middle plate body 29, and the traction plate 34 is inserted into the slot 291. A spring locking rod 292 for positioning the traction plate 34 is symmetrically arranged on the top surface of the middle plate body 29. Side covers are symmetrically arranged at both ends of the middle plate body 29. The side covers are inverted U-shaped and are slidably installed on the outer wall of the guide rail group.

[0094] In the above scheme: the traction component can be docked with the walking component to drive the walking component to move stably and accurately. When docked, the traction plate is inserted into the slot, and the spring locking rod can position the traction plate. When separation is required, the spring locking rod is lifted to pull out the walking component; when the traction component moves, the side cover moves along the guide rail group to ensure stable walking.

[0095] When the walking assembly moves to the end of the bottom guide frame, workers need to pull the bottom guide frame to a new position, which is laborious. To solve the above problem, the following solution is given:

[0096] In this embodiment, the guide rail group includes an upper rack rail 13 and a lower rail 14, the upper rack rail 13 is arranged above the lower rail 14, the side cover body includes an outer plate body 21, a cross plate 22 and an inner plate body 23, the top of the outer plate body 21 is connected to the top of the inner plate body 23 through the cross plate 22, and a floating adjustment component is installed vertically and slidably inside the outer plate body 21, and a weight block 241 is provided at the bottom of the floating adjustment component, and the weight block 241 is located at the bottom of the outer plate body 21, and a first slide groove 211 is opened on the top of the inner wall of the outer plate body 21, and the cross plate is provided at the bottom of the inner wall of the two groups of inner plates 23. A second slide groove 231 is provided at the top of the inner plate body 23, a guide slider 28 is provided at the bottom between the outer plate body 21 and the inner plate body 23, and the guide slider 28 is slidably arranged on the top surface of the lower guide rail 14, a driving gear 27 is installed at the top between the outer plate body 21 and the inner plate body 23, one end of the driving gear 27 passes through the second slide groove 231 and is connected to the output end of the first motor 26, a second spring rod is provided on the bottom surface of the first motor, and the second spring rod is arranged on the surface of the middle plate body, and the other end of the driving gear 27 passes through the first slide groove 211 and is rotatably connected to the floating adjustment component;

[0097] In mode three, when the traction assembly 2 moves along the bottom guide frame 1, the floating adjustment assembly drives the weight block 241 and the driving gear 27 to move upward, and the lower guide rail 14 guides the movement of the guide slider 28;

[0098] When the traction assembly 2 drives the bottom guide frame 1 to move, the floating adjustment assembly drives the weight block 241 and the driving gear 27 to descend, the weight block 241 touches the ground, the driving gear 27 engages with the upper rack 13, the driving gear 27 drives the upper rack 13 to move, and the guide slider 28 guides the movement of the lower guide rail 14.

[0099] In the above scheme:

[0100] 1. The guide rail group is designed to have two rails, the upper rack rail and the lower rail. The lower rail can slide with the guide slider to ensure the translation accuracy of the walking assembly and the translation accuracy of the bottom guide frame;

[0101] The upper rack can cooperate with the driving gear, and the driving gear can rotate to drive the upper rack to translate, so that the bottom guide frame moves forward autonomously without manual pulling;

[0102] 2. When the walking assembly moves to the end of the bottom guide frame, the floating adjustment assembly can adjust the driving gear to mesh with the upper rack and the weight block to drop to the ground. The setting of the weight block can ensure the stability of the traction assembly. At the same time, when the weight block drops to the ground, the bottom guide frame can be lifted off the ground in the reverse direction. In this way, the traction assembly serves as a supporting foundation and the driving gear can be driven easily;

[0103] When the walking assembly moves along the bottom guide frame, the driving gear and the weight are lifted up, so that the bottom guide frame will serve as a supporting base, and the driving gear will not contact the upper rack and will not affect the movement of the traction assembly.

[0104] In this embodiment, the floating adjustment component includes a floating rod 24 and an adjustment block 25. The floating rod 24 is vertically slidably installed inside the outer plate body 21 of the adjustment component. The bottom end of the floating rod 24 extends outward from the outer plate body 21 and is connected to the weight block 241. The side wall of the floating rod 24 is provided with a positioning plate 242. The bottom surface of the positioning plate 242 is provided with a first spring rod 243. An adjustment gap is left between the top of the floating rod 24 and the top of the inner part of the outer plate body 21. The adjustment block 25 is slidably installed inside the adjustment gap. The adjustment block 25 includes a first resistance block 252 and a second resistance block 253. The first resistance block 252 and the second resistance block 253 are connected as a whole and the connection is a chamfered structure. The thickness of the first resistance block 252 is less than that of the second resistance block 253. The outer end of the second resistance block 253 is connected to the first driving rod 251, and the first driving rod 251 is arranged on the outer top of the outer plate body 21.

[0105] When the first abutment block 252 is inserted into the adjustment gap, the first spring rod 243 and the second spring rod 261 drive the driving gear 27 and the weight block 241 to lift up;

[0106] When the second abutment block 253 is inserted into the adjustment gap, the second abutment block 253 abuts against the floating rod 24 to descend, so that the driving gear 27 and the weight block 241 descend.

[0107] In the above scheme: a retractable adjustment block is designed, the adjustment block has a first abutment block and a second abutment block of different thicknesses, and the first driving rod drives the adjustment block to translate in the adjustment gap, thereby driving the driving gear and the weight block to move up and down;

[0108] A first spring rod capable of lifting and lowering is designed in the outer panel body, which can drive the floating rod to reset upward, and the second spring rod can support the first motor to lift and reset. When the floating rod descends, it compresses the first spring rod, and when the first motor descends, the first motor compresses the second spring rod.

[0109] Embodiment 3

[0110] When the bottom end of the ultrasonic probe is in reciprocating contact with the weld, the bottom end of the ultrasonic probe will wear. To reduce the wear, this embodiment provides the following solution:

[0111] In this embodiment, a weld pretreatment component 8 is provided in the middle of the inner wall of the front end plate 12, and the weld pretreatment component 8 includes a box body 81, and a dust removal roller brush 82 is installed on the outer side of the bottom surface of the box body 81, and a dust suction pipe 84 is installed on the inner side of the dust removal roller brush 82. The dust suction pipe 84 is connected to the negative pressure box 83, and the negative pressure box 83 is arranged in the box body 81. The inner rear side of the box body 81 is a coupling agent storage chamber, and an extrusion plate 85 is vertically slidably installed inside the coupling agent storage chamber. The top of the extrusion plate 85 is connected to a lower pressure tooth plate 86, and the lower pressure tooth plate 86 passes through the top surface of the box body 81. The top surface of the box body 81 is installed with a second motor 87 for driving the lower pressure tooth plate 86 to rise and fall.

[0112] In the above scheme:

[0113] 1. The dust removal roller brush is designed to clean the dust and impurities on the weld in advance when the bottom guide frame moves outward, which can not only ensure the accuracy of ultrasonic testing and eliminate errors, but also remove impurities and reduce friction, thus reducing the wear on the bottom end of the ultrasonic probe;

[0114] 2. The vacuum tube of the negative pressure box can absorb the dust at the weld under negative pressure to prevent the dust removed by the dust removal roller brush from gathering again;

[0115] 3. The second motor can drive the lower pressure tooth plate to move downward, and the lower pressure tooth plate can drive the extrusion plate to move downward. The extrusion plate squeezes out the coupling agent in the coupling agent storage chamber, so that the coupling agent is automatically applied to the weld. If, the smoothness of the movement of the ultrasonic probe can be increased, wear can be reduced, and the gap can be eliminated, thereby improving the accuracy of weld detection.

[0116] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0117] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rapid detection device for weld quality of municipal bridge steel structure, characterized by: The bottom guide frame comprises a rectangular frame structure, a traction assembly is installed in the bottom guide frame for transverse sliding, the traction assembly is connected to the walking assembly, the other end of the walking assembly away from the traction assembly is connected to the probe movable assembly, and the probe assembly is inserted in the probe movable assembly; the top surface of the walking assembly is connected to the support assembly, the top end of the support assembly is connected to the back-bearing assembly, the side of the back-bearing assembly is provided with a multi-axis support arm, and the end of the multi-axis support arm is connected to the ultrasound display host; The walking assembly includes a bottom plate, a base is provided on one side of the surface of the bottom plate, side plates are symmetrically provided on the surface of the base, a third spring rod is installed on the inner wall of each group of side plates, a clamp is provided on the inner end of the third spring rod, a clamp is provided on the middle part of the inner wall of the clamp, the clamp cooperates with the clamp to clamp the support assembly, a horizontally arranged traction plate is vertically provided on the outer wall of the base, and the traction plate is assembled and connected to the traction assembly; a probe movable assembly is slidably installed on the other side of the surface of the bottom plate, and a roller is installed on the bottom surface of the bottom plate; The detection device includes the following usage modes: Mode 1: In this mode, the device uses components including a backpack component, a probe component, and an ultrasound display host. When working, the operator carries the backpack component on his back and holds the probe component in his hand, and adjusts the ultrasound display host to be in front of him. Mode 2: In this mode, the device uses components that are added with support components, walking components, and probe movable components based on Mode 1. When working, the walking component is placed at the weld, and the probe movable component drives the probe component to move back and forth to detect the quality of the weld. Mode 3: In this mode, the device uses components that add a traction component and a bottom guide frame on the basis of Mode 2; when working, the mobile guide is placed on the bridge deck weld, the walking component is docked with the traction component, and the walking component moves along the bottom guide frame to quickly complete the inspection of long-distance bridge deck welds; The carrying assembly comprises a back plate, two sets of carrying frames are arranged on both sides of the outer wall of the back plate, a strap is arranged between the two sets of carrying frames, the side wall of the back plate is connected to the multi-axis support arm, the end ball head of the multi-axis support arm is rotatably connected to the ultrasound display host, an assembly column is arranged in the middle of the back of the back plate, the assembly column is connected to the supporting assembly, and hooks are symmetrically arranged on the back of the back plate; In mode 1, the following working states are included: In the first state, the operator carries the backpack assembly on his back to perform ground operations; In the second state, the hook is connected to an external crane, and the operator carries the backpack assembly on his back to perform aerial work; The support assembly includes an upper positioning part and a lower connecting part, the upper positioning part includes a sleeve and a top seat, the lower connecting part includes a main rod and a handle rod, a clamping plate is provided at the bottom end of the main rod, a polygonal clamping hole is provided at the bottom end of the clamping plate, the clamping plate is assembled and connected to the walking assembly, a lower assembly plate is vertically provided at the top end of the main rod, a handle rod is vertically provided at the middle of the top surface of the lower assembly plate, the handle rod is slidably embedded in the sleeve, an upper assembly plate is provided on the outer wall of the bottom end of the sleeve, the upper assembly plate is connected to the lower assembly plate by screws, a top seat is provided at the top end of the sleeve, and a reserved hole for inserting the assembly column is provided inside the top seat; In mode 2, the working status includes the following: In the first state, the upper positioning part and the lower connecting part are connected as one, and the operator pushes the carrying assembly to push the walking assembly forward; In the second state, the upper positioning part and the lower connecting part are separated, and the operator can carry the backpack assembly on his back and hold the handle bar to remotely and manually operate the walking assembly to walk, so as to perform long-distance detection on the difficult-to-reach areas.

2. According to claim 1, a rapid detection device for weld quality of municipal bridge steel structure is characterized by: The probe movable assembly includes a support rod, which is horizontally fixed on the bottom plate, and a movable block is slidably mounted on the outer wall of the support rod, and the movable block is slidably mounted on the bottom plate surface, and a horizontal storage groove is provided on the outside of the movable block, and a vertical storage groove is provided on the inside of the movable block, and a linkage plate is installed inside the horizontal storage groove, and the probe assembly is vertically inserted in the vertical storage groove, and a through groove is provided inside the bottom plate for the probe assembly to move downward; a swinging assembly for driving the linkage plate to move horizontally is installed on the bottom surface of the bottom plate.

3. According to claim 2, a rapid detection device for weld quality of municipal bridge steel structure is characterized by: The linkage plate includes a rectangular frame and a cover plate, the cover plate is arranged at the top of the rectangular frame and covers the movable block, the rectangular frame is arranged outside the movable block and the bottom plate, an L plate is arranged on the bottom surface of the cover plate, the L plate is horizontally inserted into the horizontal receiving groove, a first spring is arranged in the horizontal receiving groove, and the first spring is connected to the L plate; The swing assembly includes a transfer rod and a constraint seat. The transfer rod is rotatably arranged on the bottom surface of the base plate. A first bevel tooth is provided in the middle of the outer wall of the transfer rod. The constraint seat is arranged in the middle of the bottom surface of the bottom surface. A linkage rod is rotatably passed through the internal rotation of the constraint seat. The linkage rod is vertically distributed with the transfer rod. A second bevel tooth meshing with the first bevel tooth is provided at the inner end of the linkage rod. The outer end of the linkage rod is connected to the swing rod. A swing column is vertically provided on the inner wall of the outer end of the swing rod. The swing column is inserted into the rectangular frame.

4. A rapid detection device for weld quality of municipal bridge steel structure according to claim 3, characterized in that: The probe assembly includes an ultrasonic probe rod, which is T-shaped. A plug plate is slidably installed on the outer wall of the ultrasonic probe rod, and a positioning block is provided on the inner wall of the plug plate. The positioning block is inserted into the vertical storage groove, and the cover plate stops the positioning block from the top; a second spring is connected to the top of the plug plate; when unlocking the probe assembly, the linkage plate is pulled outward, the cover plate is separated from the positioning block, and the operator can extract the probe assembly.

5. A rapid detection device for weld quality of municipal bridge steel structure according to claim 4, characterized in that: The bottom guide frame includes a rear end plate, a front end plate and a guide rail group, two guide rail groups are symmetrically arranged between the rear end plate and the front end plate, the traction assembly includes a middle plate body and a side cover body, a slot is opened inside the middle plate body, the traction plate is inserted into the slot, a spring locking rod for positioning the traction plate is symmetrically arranged on the top surface of the middle plate body, side covers are symmetrically arranged at both ends of the middle plate body, the side covers are inverted U-shape, and the side covers are slidably installed on the outer wall of the guide rail group.

6. A rapid detection device for weld quality of municipal bridge steel structure according to claim 5, characterized in that: The guide rail group includes an upper rack and a lower rail, the upper rack is arranged at an interval above the lower rail, the side cover body includes an outer plate body, a cross plate and an inner plate body, the top of the outer plate body is connected to the top of the inner plate body by a cross plate, a floating adjustment component is vertically slidably installed inside the outer plate body, a weight block is provided at the bottom of the floating adjustment component, the weight block is located at the bottom of the outer plate body, a first slide groove is opened on the top of the inner wall of the outer plate body, the cross plate is arranged on the bottom of the inner wall of the two groups of inner plate bodies, a second slide groove is opened on the inner top of the inner plate body, a guide slider is provided at the bottom between the outer plate body and the inner plate body, the guide slider is slidably arranged on the top surface of the lower guide rail, a driving gear is installed on the top between the outer plate body and the inner plate body, one end of the driving gear passes through the second slide groove and is connected to the output end of the first motor, a second spring rod is provided on the bottom surface of the first motor, the second spring rod is arranged on the surface of the middle plate body, the other end of the driving gear passes through the first slide groove and is rotatably connected to the floating adjustment component; In mode three, when the traction assembly moves along the bottom guide frame, the driving weight and the driving gear of the floating adjustment assembly are lifted up, and the lower guide rail guides the movement of the guide slider; When the traction assembly drives the bottom guide frame to move, the floating adjustment assembly drives the weight block and the driving gear to descend, the weight block touches the ground, the driving gear engages with the upper rack, the driving gear drives the upper rack to move, and the guide slider guides the movement of the lower guide rail.

7. A rapid detection device for weld quality of municipal bridge steel structure according to claim 6, characterized in that: The floating adjustment component includes a floating rod and an adjustment block, a floating rod is vertically slidably installed inside the outer plate body of the adjustment component, the bottom end of the floating rod extends outward from the outer plate body and is connected to the weight block, a positioning plate is provided on the side wall of the floating rod, a first spring rod is provided on the bottom surface of the positioning plate, an adjustment gap is left between the top end of the floating rod and the top of the inner part of the outer plate body, an adjustment block is slidably installed inside the adjustment gap, the adjustment block includes a first interference block and a second interference block, the first interference block and the second interference block are connected as a whole and the connection is a chamfered structure, the thickness of the first interference block is less than the thickness of the second interference block, the outer end of the second interference block is connected to the first driving rod, and the first driving rod is arranged on the outer top of the outer plate body; When the first abutment block is inserted into the adjustment gap, the first spring rod and the second spring rod drive the driving gear and the weight block to lift up; When the second abutment block is inserted into the adjustment gap, the second abutment block abuts against the floating rod to descend, causing the driving gear and the weight to descend.

8. A rapid detection device for weld quality of municipal bridge steel structure according to claim 7, characterized in that: A weld pretreatment component is provided at the middle part of the inner wall of the front end plate, and the weld pretreatment component includes a box body, a dust removal roller brush is installed on the outer side of the bottom surface of the box body, a dust suction pipe is installed on the inner side of the dust removal roller brush, the dust suction pipe is connected to the negative pressure box, and the negative pressure box is arranged in the box body. The inner rear side of the box body is a coupling agent storage chamber, and an extrusion plate is vertically slidably installed inside the coupling agent storage chamber. The top of the extrusion plate is connected to a lower pressure tooth plate, and the lower pressure tooth plate passes through the top surface of the box body. A second motor for driving the lower pressure tooth plate to rise and fall is installed on the top surface of the box body.

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