CN115752249B - Bridge crack measuring device - Google Patents

Abstract

The invention discloses a bridge crack measuring device, which belongs to the technical field of bridge detection equipment, wherein a first fixing plate is arranged between two first support frames, first support plates are connected to vertical rods of the two first support frames in a sliding manner, second support plates are connected to two first guide rods in a sliding manner along the horizontal direction, two second guide rods in the horizontal direction are arranged on the second support plates, and measuring mechanisms for measuring the depth and the width of a bridge crack are connected to the two second guide rods in a sliding manner along the horizontal direction. According to the invention, the crack depth test is carried out according to the data obtained by the two depth measuring lenses by the crack depth tester, the crack width tester carries out the crack width test according to the data obtained by the width measuring lenses, and meanwhile, the two depth measuring lenses of the crack depth tester and the width measuring lens of the crack width tester can be conveniently and automatically replaced, so that the unused lenses can be timely shielded and protected, and the lens is prevented from being worn.

Description

Bridge crack measuring device

Technical Field

The invention belongs to the technical field of bridge detection equipment, and particularly relates to a bridge crack measuring device.

Background

The bridge defect characterization mainly comprises deflection increase, surface damage, crack occurrence, concrete carbonization, degradation, steel bar corrosion, local structural damage, artificial damage and the like, and most defects can be concentrated on the aspect of cracks, such as cracks caused by deflection increase, surface cracks caused by surface damage, cracks caused by steel bar corrosion caused by concrete carbonization and the like, and a crack instrument is generally adopted when detecting, recording and measuring the width of the cracks of a concrete bridge, a tunnel or a pier and the like.

The existing detection equipment adopts to build a special safety frame, a crack depth tester and a crack width tester on the safety frame are used for detecting bridge cracks in a short distance, but when the width and the depth of the bridge cracks are detected, the detector needs to be replaced, the existing detection equipment is inconvenient to replace, meanwhile, the lens of the tester is not protected in place, the lens is worn, and the safety frame is inconvenient to fix on a bridge during detection.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the defects of the prior art, and provide a bridge crack measuring device for measuring the width and the depth of a bridge crack.

The technical scheme adopted for solving the technical problems is as follows: the two sides of the chassis are respectively provided with a first support frame, a first fixing plate is arranged between the two first support frames, a first support plate is connected to the vertical rods of the two first support frames in a sliding manner along the vertical direction, two first guide rods in the horizontal direction are arranged on the first support plate, a second support plate is connected to the two first guide rods in a sliding manner along the horizontal direction, two second guide rods in the horizontal direction are arranged on the second support plate, and a measuring mechanism for measuring the depth and the width of a bridge crack is connected to the two second guide rods in a sliding manner along the horizontal direction; the measuring mechanism is as follows: the second guide rod is connected with a second support frame in a sliding way along the horizontal direction, the second support frame is in threaded connection with a second lead screw, a third support frame is arranged on the second support frame, a first connecting shaft is connected on the third support frame in a sliding way along the vertical direction, one end of the first connecting shaft is provided with a first top plate which is in conflict with a first fixed plate, the outer circumference of the first connecting shaft is provided with a first spring, one end of the first spring is connected with the first top plate, the other end of the first spring is connected with the third support frame, a pawl is rotatably arranged at the other end of the first connecting shaft, a first spring piece which is in conflict with the pawl is arranged on the first connecting shaft, a second gear and a ratchet wheel which are coaxially connected are rotatably arranged on a side plate of the second support frame, ratchet and pawl joint are rotated on the fourth support frame of second support frame curb plate and are installed the gag lever post of contradicting with the ratchet, be provided with the second spring leaf of contradicting with the gag lever post on the fourth support frame, rotate on the curb plate of second support frame install with second gear engagement driven first gear, first gear passes through third connecting axle and framework fixed connection, the third backup pad of framework top surface, correspond respectively in the fourth backup pad and be provided with first degree of depth measurement lens that is used for measuring bridge crack depth, second degree of depth measurement lens, be provided with the width measurement lens that is used for detecting bridge crack width in the fifth backup pad of framework bottom surface.

Further, the fourth backup pad bottom be provided with the connecting plate, sliding connection has first connecting rod on the connecting plate, first connecting rod one end is through first rack and conflict pole fixed connection, first connecting rod outer circumference is provided with the second spring, second spring one end and connecting plate fixed connection, the other end and first rack one end fixed connection, rotate in the fifth backup pad and install the fourth connecting axle, fourth connecting axle one end be provided with first rack meshing driven eighth gear, the other end is provided with the fifth belt pulley, fixed mounting has the second connecting axle on the second support frame, second connecting axle one end is provided with the first fixed disk of fixed mounting conflict piece, conflict piece is contradicted with the conflict pole, the fifth belt pulley passes through second belt and sixth belt pulley transmission connection, the sixth belt pulley respectively with the seventh belt pulley of rotation installation in the fifth backup pad, seventh gear coaxial coupling, rotate in the fifth backup pad install with seventh gear meshing driven sixth gear, seventh gear and sixth shielding plate fixed connection, sixth gear and fifth shielding plate fixed connection, sixth shielding plate and fifth shielding plate width measurement lens.

Further, the seventh belt pulley is in transmission connection with a first belt pulley which is rotatably arranged on a fourth supporting plate through a third belt, the first belt pulley is respectively in coaxial connection with a second belt pulley and a third gear, a third belt pulley which is in meshed transmission with the third gear is rotatably arranged on the fourth supporting plate, the third gear is fixedly connected with a first shielding plate, the third belt pulley is fixedly connected with a second shielding plate, and the first shielding plate and the second shielding plate shield a first depth measurement lens.

Further, the second belt pulley is in transmission connection with a fourth belt pulley which is rotatably arranged on the third supporting plate through a first belt, the fourth belt pulley is coaxially connected with a fourth gear, a fifth gear which is in meshed transmission with the fourth gear is rotatably arranged on the third supporting plate, the fourth gear is fixedly connected with a third shielding plate, the fifth gear is fixedly connected with the fourth shielding plate, and the third shielding plate and the fourth shielding plate shield a second depth measurement lens.

Further, an electric cylinder for driving the first support plate to slide along the vertical direction on the vertical rod of the first support frame is arranged on the first support frame.

Further, first backup pad on be provided with first lead screw pivoted first motor of drive, first lead screw and second backup pad one end threaded connection are provided with second lead screw pivoted second motor of drive in the second backup pad, second lead screw and measuring mechanism threaded connection are provided with the containing box that is used for accomodating measuring mechanism in the first backup pad.

Further, the chassis on be provided with the dust absorption mechanism that absorbs ground debris, dust absorption mechanism be: the bottom is provided with the pipeline on the chassis, evenly is provided with the dust absorption head that is used for absorbing ground debris on the pipeline, and pipeline one end communicates with each other with the entry end of fan, and the exit end of fan communicates with each other with the entry end of the last dust storage tank of chassis, and the exit end of dust storage tank is provided with the filter.

Further, chassis bottom four corners be provided with the gyro wheel respectively, be provided with the supporting mechanism who is used for supporting the chassis on the chassis, supporting mechanism be: one side is provided with the fifth support frame on the chassis, be provided with the pull rod along incline direction sliding connection on the fifth support frame, be provided with the second rack on the pull rod, rotate on the bracing piece on the chassis install with the ninth gear of second rack meshing transmission, be provided with along vertical direction sliding connection on the chassis with the third rack of ninth gear meshing transmission, the chassis bottom rotates installs the third connecting rod, be provided with on the third connecting rod with the tenth gear of third rack meshing transmission, third connecting rod both ends are provided with the eleventh gear respectively, chassis bottom both sides rotate respectively and install the fourth connecting rod, be provided with respectively on two fourth connecting rods with the twelfth gear of eleventh gear meshing transmission, two fourth connecting rod both ends are provided with the cam respectively, the bottom four corners of chassis is provided with the sixth backup pad respectively, along vertical direction sliding connection in every sixth backup pad respectively, every backup pad top is provided with the second roof that contradicts with the cam respectively, the support column outer circumference is provided with the third spring, third spring one end and second roof fixed connection, the other end and sixth backup pad fixed connection.

Further, pull rod one end be provided with the handle, sliding connection has the inserted bar on the fifth support frame, evenly be provided with the draw-in groove with the inserted bar joint on the pull rod, the inserted bar outer circumference is provided with the fourth spring, fourth spring one end and the second fixed plate fixed connection on the fifth support frame, the second fixed disk fixed connection on the other end and the inserted bar.

The beneficial effects of the invention are as follows: (1) According to the invention, the crack depth tester is adopted to carry out crack depth test according to the data acquired by the two depth measuring lenses, the crack width tester carries out crack width test according to the data acquired by the width measuring lenses, and meanwhile, the two depth measuring lenses of the crack depth tester and the width measuring lens of the crack width tester can be conveniently and automatically replaced, so that the unused lenses can be shielded in time for protection, and abrasion to the lenses is avoided.

(2) The dust suction device adopts the fan to suck the dust sucked by the dust suction head through the pipeline, and the dust in the fan is stored in the dust storage tank, so that dust suction treatment is conveniently carried out on the bridge.

(3) The invention adopts the structure that when the highest point of the cam is in conflict with the second top plate of the support column, the support column is fixed on the bridge deck, when the width and the depth of a bridge crack are detected, the support column can be stably fixed on the bridge deck, and when the lowest point of the cam is in conflict with the second top plate of the support column, the support column is separated from the bridge deck and is pushed to advance by virtue of the roller.

Drawings

FIG. 1 is a schematic structural view of an embodiment of the bridge crack measuring device of the present invention.

Fig. 2 is a schematic view of a part of the structure of fig. 1.

Fig. 3 is a schematic view of a part of the structure of fig. 2.

Fig. 4 is a schematic structural view of the measuring mechanism.

Fig. 5 is a schematic view of the structure of fig. 4 at another angle.

Fig. 6 is a partial schematic view of the structure of fig. 4.

Fig. 7 is a schematic view of the structure of fig. 6 at another angle.

Fig. 8 is a partial schematic view of the structure of fig. 6.

Fig. 9 is a partial schematic view of the structure of fig. 8.

Fig. 10 is a schematic structural view of the first link.

Fig. 11 is a schematic structural view of the dust suction mechanism.

Fig. 12 is a partial schematic structure of fig. 11.

Fig. 13 is a schematic structural view of the supporting mechanism.

Fig. 14 is a partial schematic structural view of fig. 13.

Fig. 15 is a partially enlarged schematic view of the structure at a in fig. 14.

Fig. 16 is a partially enlarged schematic view of the structure at B in fig. 14.

Fig. 17 is a partially enlarged schematic view of the structure at C in fig. 14.

Fig. 18 is a schematic view of the structure of the fourth link and cam.

Reference numerals: 1. a chassis; 2. a first support frame; 3. a first support plate; 4. an electric cylinder; 501. a second support frame; 502. a pawl; 503. a first spring; 504. a first connecting shaft; 505. a first top plate; 506. a third support frame; 507. a first spring piece; 508. a frame; 509. a first gear; 510. a second gear; 511. a ratchet wheel; 512. a limit rod; 513. a fourth support frame; 514. a second spring piece; 515. a first depth measurement lens; 516. a first shielding plate; 517. a second shielding plate; 518. a second depth measurement lens; 519. a third shielding plate; 520. a fourth shielding plate; 521. a second connecting shaft; 522. a third support plate; 523. a fourth support plate; 524. a third connecting shaft; 525. a fifth support plate; 526. a width measurement lens; 527. a fifth shielding plate; 528. a sixth shielding plate; 529. a first link; 530. a connecting plate; 531. a third gear; 532. a first pulley; 533. a second pulley; 534. a third pulley; 535. a first belt; 536. a fourth gear; 537. a fourth pulley; 538. a fifth gear; 539. a touch-up rod; 540. a fifth pulley; 541. a second belt; 542. a sixth gear; 543. a sixth pulley; 544. a seventh pulley; 545. a seventh gear; 546. a fourth connecting shaft; 547. an eighth gear; 548. a third belt; 549. a first rack; 550. a second spring; 551. a collision block; 552. a first fixed plate; 601. a dust storage tank; 602. a filter; 603. a blower; 604. a pipe; 605. a dust collection head; 701. a handle; 702. a pull rod; 703. a fifth support frame; 704. a sixth support plate; 705. a cam; 706. a second top plate; 707. a support column; 708. a third spring; 710. a rod; 711. a fourth spring; 712. a second fixed disk; 713. a clamping groove; 714. a second rack; 715. a ninth gear; 716. a support rod; 717. a third rack; 718. a third link; 719. a tenth gear; 720. an eleventh gear; 721. a twelfth gear; 722. a fourth link; 723. a second fixing plate; 8. a first guide bar; 9. a second support plate; 10. a first fixing plate; 11. a roller; 12. a first motor; 13. a first lead screw; 14. a storage box; 15. a second motor; 16. a second lead screw; 17. and a second guide bar.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

As shown in fig. 1 to 3, the bridge crack measuring device of the present embodiment is formed by connecting a chassis 1, a first support frame 2, a first support plate 3, an electric cylinder 4, a measuring mechanism, a dust collecting mechanism, a support mechanism, a first guide rod 8, a second support plate 9, a first fixing plate 10, a roller 11, a first motor 12, a first lead screw 13, a storage box 14, a second motor 15, a second lead screw 16, and a second guide rod 17.

The two sides on the chassis 1 are respectively fixedly provided with a first support frame 2, a first fixing plate 10 is fixedly arranged between the two first support frames 2, a first support plate 3 is connected to the vertical rods of the two first support frames 2 in a sliding manner along the vertical direction, and an electric cylinder 4 for driving the first support plate 3 to slide along the vertical direction on the vertical rods of the first support frames 2 is fixedly arranged on the first support frames 2. Two first guide rods 8 in the horizontal direction are fixedly arranged on the first support plate 3, a second support plate 9 is slidably connected to the two first guide rods 8 in the horizontal direction, a first motor 12 for driving a first lead screw 13 to rotate is fixedly arranged on the first support plate 3, and the first lead screw 13 is in threaded connection with one end of the second support plate 9. Two second guide rods 17 in the horizontal direction are fixedly arranged on the second support plate 9, measuring mechanisms for measuring the depth and the width of a bridge crack are slidably connected to the two second guide rods 17 in the horizontal direction, a second motor 15 for driving a second lead screw 16 to rotate is fixedly arranged on the second support plate 9, and the second lead screw 16 is in threaded connection with the measuring mechanisms. A storage box 14 for storing the measuring mechanism is fixedly mounted on the first support plate 3.

As shown in fig. 4 to 10, the measuring mechanism is constituted by a second support frame 501, a pawl 502, a first spring 503, a first connecting shaft 504, a first top plate 505, a third support frame 506, a first spring piece 507, a frame 508, a first gear 509, a second gear 510, a ratchet 511, a stopper rod 512, a fourth support frame 513, a second spring piece 514, a first depth measuring lens 515, a first shielding plate 516, a second shielding plate 517, a second depth measuring lens 518, a third shielding plate 519, a fourth shielding plate 520, a second connecting shaft 521, a third support plate 522, a fourth support plate 523, a third connecting shaft 524, a fifth support plate 525, a width measuring lens 526, a fifth shielding plate 527, a sixth shielding plate 528, a first connecting rod 529, a connecting plate 530, a third gear 531, a first pulley 532, a second pulley 533, a third pulley 534, a first belt 535, a fourth gear 536, a fourth pulley 537, a fifth gear, a collision rod 539, a fifth pulley 540, a second belt 541, a sixth pulley 542, a seventh pulley 545, a seventh gear 538, a fourth gear-and a fourth coupling block 552, a fourth spring coupling plate 550, a fourth coupling plate 54544, a fourth coupling plate 544, and a third coupling plate.

The measuring mechanism is as follows: the second guide rod 17 is connected with a second support frame 501 in a sliding way along the horizontal direction, the second support frame 501 is in threaded connection with a second lead screw 16, a third support frame 506 is fixedly arranged on the second support frame 501, a first connecting shaft 504 is connected with the third support frame 506 in a sliding way along the vertical direction, a first top plate 505 which is in interference fit with the first fixing plate 10 is fixedly arranged at one end of the first connecting shaft 504, a first spring 503 is arranged at the outer circumference of the first connecting shaft 504, one end of the first spring 503 is connected with the first top plate 505, the other end of the first spring 503 is connected with the third support frame 506, a pawl 502 is rotatably arranged at the other end of the first connecting shaft 504, a first spring piece 507 which is in interference fit with the pawl 502 is arranged on the first connecting shaft 504, a second gear 510 and a ratchet 511 which are coaxially connected are rotatably arranged on a side plate of the second support frame 501, the ratchet 511 is in interference fit with the pawl 502, a limit rod 512 which is abutted against the ratchet 511 is rotatably arranged on a fourth support frame 513 on a side plate of the second support frame 501, a second spring piece 514 which is abutted against the limit rod 512 is arranged on the fourth support frame 513, a first gear 509 which is in meshed transmission with the second gear 510 is rotatably arranged on a side plate of the second support frame 501, the first gear 509 is fixedly connected with the frame 508 through a third connecting shaft 524, a first depth measuring lens 515 and a second depth measuring lens 518 for measuring the crack depth of a bridge are correspondingly arranged on a third support plate 522 and a fourth support plate 523 on the top surface of the frame 508 respectively, the first depth measuring lens 515 and the second depth measuring lens 518 are lenses of a crack depth tester, the crack depth tester is HC-CS202, a width measuring lens 526 for detecting the crack width of the bridge is arranged on a fifth support plate 525 on the bottom surface of the frame 508, the model of the crack width tester is HC-CK101.

The bottom of the fourth supporting plate 523 is provided with a connecting plate 530, the connecting plate 530 is connected with a first connecting rod 529 in a sliding manner, one end of the first connecting rod 529 is fixedly connected with a contact supporting rod 539 through a first rack 549, a second spring 550 is installed on the outer circumference of the first connecting rod 529, one end of the second spring 550 is fixedly connected with the connecting plate 530, the other end of the second spring 550 is fixedly connected with one end of the first rack 549, a fourth connecting shaft 546 is rotatably installed on the fifth supporting plate 525, one end of the fourth connecting shaft 546 is provided with an eighth gear 547 meshed with the first rack 549, the other end of the fourth connecting shaft 546 is provided with a fifth belt pulley 540, a second connecting shaft 521 is fixedly installed on the second supporting plate 501, the second connecting shaft 521 is rotatably installed with the frame 508, a collision block 551 is fixedly installed on the first fixed disk 552, the collision block 551 is in collision supporting rod 539, the fifth belt pulley 540 is in transmission connection with a sixth belt pulley through a second belt 541, the sixth belt pulley is respectively rotatably installed on the fifth supporting plate 525, the fifth belt pulley 545 is coaxially connected with the seventh gear 545, the seventh gear is rotatably connected with the sixth gear 528, and the sixth gear is fixedly connected with the sixth gear 528 is fixedly connected with the sixth baffle 528, and the fifth gear is fixedly connected with the fifth gear 528, the fifth baffle is rotatably 528 is fixedly meshed with the sixth baffle is 528, and the fifth gear is rotatably corresponds to the fifth gear is 528, and the fifth baffle is fixedly connected with the fifth gear roll is 528.

The seventh belt pulley 544 is in transmission connection with the first belt pulley 532 rotatably mounted on the fourth supporting plate 523 through a third belt 548, the first belt pulley 532 is respectively coaxially connected with the second belt pulley 533 and the third gear 531, a third belt pulley 534 in meshing transmission with the third gear 531 is rotatably mounted on the fourth supporting plate 523, the third gear 531 is fixedly connected with the first shielding plate 516, the third belt pulley 534 is fixedly connected with the second shielding plate 517, and the first shielding plate 516 and the second shielding plate 517 shield the first depth measuring lens 515.

The second belt pulley 533 is in transmission connection with a fourth belt pulley 537 rotatably mounted on the third support plate 522 by a first belt 535, the fourth belt pulley 537 is coaxially connected with a fourth gear 536, a fifth gear 538 engaged and driven with the fourth gear 536 is rotatably mounted on the third support plate 522, the fourth gear 536 is fixedly connected with the third shield plate 519, the fifth gear 538 is fixedly connected with the fourth shield plate 520, and the third shield plate 519 and the fourth shield plate 520 shield the second depth measuring lens 518.

As shown in fig. 11 to 12, the dust collection mechanism is composed of a dust storage tank 601, a filter 602, a fan 603, a pipe 604, and a dust collection head 605.

The chassis 1 is provided with a dust collection mechanism for absorbing the sundries on the ground, and the dust collection mechanism is as follows: the bottom installs pipeline 604 on chassis 1, evenly is provided with the dust absorption head 605 that is used for absorbing ground debris on the pipeline 604, and pipeline 604 one end communicates with each other with the entry end of fan 603, and the exit end of fan 603 communicates with each other with the entry end of the last dust storage tank 601 of chassis 1, and filter 602 is installed to the exit end of dust storage tank 601.

As shown in fig. 13 to 18, the support mechanism is configured by coupling a handle 701, a tie rod 702, a fifth support frame 703, a sixth support plate 704, a cam 705, a second top plate 706, a support column 707, a third spring 708, a plunger 710, a fourth spring 711, a second fixed disk 712, a card slot 713, a second rack 714, a ninth gear 715, a support rod 716, a third rack 717, a third link 718, a tenth gear 719, an eleventh gear 720, a twelfth gear 721, a fourth link 722, and a second fixed plate 723.

The four corners of the bottom of the chassis 1 are respectively provided with idler wheels 11, the chassis 1 is provided with a supporting mechanism for supporting the chassis 1, and the supporting mechanism is as follows: a fifth supporting frame 703 is fixedly arranged on one side of the chassis 1, a pull rod 702 is connected to the fifth supporting frame 703 in a sliding mode along an inclined direction, a second rack 714 is arranged on the pull rod 702, a supporting rod 716 on the chassis 1 is rotatably provided with a ninth gear 715 which is in meshed transmission with the second rack 714, the chassis 1 is vertically and slidably connected with a third rack 717 which is in meshed transmission with the ninth gear 715, the bottom of the chassis 1 is rotatably provided with a third connecting rod 718, the third connecting rod 718 is provided with a tenth gear 719 which is in meshed transmission with the third rack 717, the two ends of the third connecting rod 718 are respectively provided with an eleventh gear 720, the two sides of the bottom of the chassis 1 are rotatably provided with fourth connecting rods 722, the two ends of the two fourth connecting rods 722 are respectively provided with cams 705, the four corners of the bottom of the chassis 1 are respectively provided with sixth supporting plates 704, each sixth supporting plate 704 is vertically and slidably connected with a supporting column 707, the top of each supporting column is respectively provided with a second top plate 706 which is in interference with the cams 705, the outer circumference of the supporting column 706 is respectively provided with a third top plate 708, the third top plate 708 is fixedly connected with the third top plate 708, and the third top plate 708 is fixedly connected with the third top plate 708.

One end of the pull rod 702 is provided with a handle 701, the fifth support frame 703 is slidably connected with a plug rod 710, the pull rod 702 is uniformly provided with a clamping groove 713 which is clamped with the plug rod 710, the outer circumference of the plug rod 710 is provided with a fourth spring 711, one end of the fourth spring 711 is fixedly connected with a second fixing plate 723 on the fifth support frame 703, and the other end of the fourth spring 711 is fixedly connected with a second fixing plate 712 on the plug rod 710.

The working principle of this embodiment is as follows, (1) support fixing: by manually pulling the handle 701, the handle 701 drives the pull rod 702 to move, the clamping groove 713 on the pull rod 702 is clamped with one end of the inserted rod 710, the position of the pull rod 702 is fixed, the pull rod 702 drives the second rack 714 to move in the pulling process, the second rack 714 drives the ninth gear 715 to rotate, the ninth gear 715 drives the third rack 717 to move, the third rack 717 drives the third connecting rod 718 to rotate through meshing transmission with the tenth gear 719, eleventh gears 720 at two ends of the third connecting rod 718 are respectively meshed with the twelfth gear 721 to drive the fourth connecting rod 722 to rotate, cams 705 at two ends of the fourth connecting rod 722 rotate, when the highest point of the cams 705 is in contact with the second top plate 706 of the support column 707, the support column 707 is fixed on the bridge deck, and when the lowest point of the cams 705 is in contact with the second top plate 706 of the support column 707, the support column 707 is separated from the bridge deck, and the support column 707 is pushed to move forward by the idler wheel 11.

(2) Dust collection: before bridge cracks are measured, dust is sucked into the bridge, dust sucked by a dust suction head 605 is sucked into the fan 603 through a pipeline 604, and the dust in the fan 603 is stored in a dust storage tank 601.

(3) Measuring bridge cracks: the electric cylinder 4 is started, the output shaft of the electric cylinder 4 drives the first support plate 3 to slide on the vertical rod of the first support frame 2 in the vertical direction, the first support plate 3 drives the second support plate 9 to slide in the vertical direction, and the position of the measuring mechanism on the second support plate 9 in the height direction is adjusted. The first motor 12 is started, the output shaft of the first motor 12 drives the first screw rod 13 to rotate, the second supporting plate 9 horizontally slides on the first screw rod 13, and the position of the measuring mechanism on the second supporting plate 9 in the horizontal direction is adjusted. The second motor 15 is started, the output shaft of the second motor 15 drives the second screw rod 16 to rotate, the measuring mechanism horizontally slides on the second screw rod 16, the position of the measuring mechanism in the horizontal direction is adjusted, the width measuring lens 526 located below measures the width of a bridge crack, and the crack width tester performs crack width test according to data acquired by the width measuring lens 526.

When the lens needs to be converted, the output shaft of the electric cylinder 4 drives the second support plate 9 to slide along the vertical direction through the first support plate 3, the second support plate 9 drives the second support frame 501 to slide along the vertical direction, the first connecting shaft 504 of the third support frame 506 on the second support frame 501 slides along the vertical direction, the first top plate 505 on the first connecting shaft 504 moves to be in contact with the first fixing plate 10, the first connecting shaft 504 slides downwards along the vertical direction on the third support frame 506, the first spring 503 is compressed, the pawl 502 on the first connecting shaft 504 is clamped with the ratchet 511 to drive the ratchet 511 to rotate, the ratchet 511 drives the second gear 510 to rotate, the second gear 510 drives the first gear 509 to rotate, the first gear 509 drives the frame 508 to rotate through the third connecting shaft 524, the first depth measuring lens 515 and the second depth measuring lens 518 on the frame 508 rotate to the lower side, the first depth measuring lens 515 and the second depth measuring lens 518 measure the depth of a bridge, and the crack depth tester performs crack depth test according to the data acquired by the first depth measuring lens 515 and the second depth measuring lens 518.

The fourth supporting plate 523 of the frame 508 drives the first connecting rod 529 to rotate through the connecting plate 530, the contact abutting rod 539 at one end of the first connecting rod 529 abuts against the contact abutting block 551 of the first fixed disc 552 at one end of the first connecting rod 529 in the rotating process, the contact abutting rod 539 drives the first connecting rod 529 to horizontally slide on the connecting plate 530 through the first rack 549, the second spring 550 is used for resetting the first connecting rod 529, the first rack 549 drives the eighth gear 547 to rotate, the eighth gear 547 drives the fifth belt pulley 540 to rotate through the fourth connecting shaft 546, the fifth belt pulley 540 drives the sixth belt pulley 543 to rotate through the second belt 541, the sixth belt pulley 543 drives the seventh belt pulley 544 to rotate, the seventh belt pulley 544 drives the seventh gear 545 to rotate, the seventh gear 545 drives the sixth shielding plate 528 to rotate, the sixth gear 542 drives the sixth shielding plate 527 to rotate, and the sixth gear 542 drives the fifth shielding plate 527 to rotate, and the sixth shielding plate 528 and the fifth shielding plate 527 to open respectively to expose the width measuring lens 526.

The seventh gear 545 drives the first pulley 532 to rotate through the third belt 548, the first pulley 532 drives the second pulley 533 to rotate, the first pulley 532 drives the third gear 531 to rotate, the third gear 531 drives the first shielding plate 516 to rotate, the third gear 531 drives the third pulley 534 to rotate, the third pulley 534 drives the second shielding plate 517 to rotate, and the first shielding plate 516 and the second shielding plate 517 are respectively closed to protect the first depth measurement lens 515.

The second belt pulley 533 drives the fourth belt pulley 537 through the first belt 535, the fourth belt pulley 537 drives the fourth gear 536 to rotate, the fourth gear 536 drives the third shutter 519 to rotate, the fourth gear 536 drives the fifth gear 538 to rotate, the fifth gear 538 drives the fourth shutter 520 to rotate, and the third shutter 519 and the fourth shutter 520 are closed respectively to protect the second depth measurement lens 518.

The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention.

Claims (9)

1. Bridge crack measuring device, its characterized in that: the two sides of the chassis (1) are respectively provided with a first support frame (2), a first fixing plate (10) is arranged between the two first support frames (2), a first support plate (3) is connected to the vertical rods of the two first support frames (2) in a sliding manner along the vertical direction, two first guide rods (8) in the horizontal direction are arranged on the first support plate (3), a second support plate (9) is connected to the two first guide rods (8) in the horizontal direction in a sliding manner, two second guide rods (17) in the horizontal direction are arranged on the second support plate (9), and a measuring mechanism for measuring the depth and the width of a bridge crack is connected to the two second guide rods (17) in a sliding manner along the horizontal direction;

the measuring mechanism is as follows: the second guide rod (17) is provided with a second support frame (501) in sliding connection along the horizontal direction, the second support frame (501) is in threaded connection with a second lead screw (16), the second support frame (501) is provided with a third support frame (506), the third support frame (506) is provided with a first connecting shaft (504) in sliding connection along the vertical direction, one end of the first connecting shaft (504) is provided with a first top plate (505) which is in interference with a first fixed plate (10), the outer circumference of the first connecting shaft (504) is provided with a first spring (503), one end of the first spring (503) is connected with the first top plate (505), the other end of the first spring (503) is connected with the third support frame (506), the other end of the first connecting shaft (504) is rotatably provided with a pawl (502), the side plate of the second support frame (501) is rotatably provided with a second gear (510) and a ratchet (511) which are coaxially connected, the ratchet (511) is in clamping connection with the ratchet (511), the fourth support frame (513) is rotatably provided with a limit spring (512) which is in interference with the fourth support frame (513), the limit rod (512) is arranged on the side plate of the second support frame (501), the first gear (509) meshed with the second gear (510) is rotatably arranged on the side plate of the second support frame (501), the first gear (509) is fixedly connected with the frame body (508) through a third connecting shaft (524), a first depth measuring lens (515) and a second depth measuring lens (518) for measuring the depth of a bridge crack are correspondingly arranged on a third support plate (522) and a fourth support plate (523) on the top surface of the frame body (508), and a width measuring lens (526) for detecting the width of the bridge crack is arranged on a fifth support plate (525) on the bottom surface of the frame body (508).

2. The bridge crack measuring device according to claim 1, wherein: the bottom of the fourth supporting plate (523) is provided with a connecting plate (530), a first connecting rod (529) is connected to the connecting plate (530) in a sliding manner, one end of the first connecting rod (529) is fixedly connected with an abutting rod (539) through a first rack (549), a second spring (550) is arranged on the outer circumference of the first connecting rod (529), one end of the second spring (550) is fixedly connected with the connecting plate (530), the other end of the second spring is fixedly connected with one end of the first rack (549), a fourth connecting shaft (546) is rotatably arranged on the fifth supporting plate (525), one end of the fourth connecting shaft (546) is provided with an eighth gear (547) which is meshed and driven with the first rack (549), the other end of the fourth connecting shaft (546) is provided with a fifth belt pulley (540), a second connecting shaft (521) is fixedly arranged on the second supporting frame (501), a first fixed disc (552) fixedly arranged on one end of the second connecting shaft (521), the abutting block (551) is abutted against the abutting rod (539), the fifth belt pulley (540) is rotatably connected with a sixth belt pulley (belt pulley) through a second belt (541), the sixth belt pulley (belt pulley) in a driving manner, the seventh belt pulley (545) is rotatably connected with the seventh belt pulley (543) coaxially and coaxially, a sixth gear (542) which is meshed with and driven by a seventh gear (545) is rotatably arranged on the fifth supporting plate (525), the seventh gear (545) is fixedly connected with the sixth shielding plate (528), the sixth gear (542) is fixedly connected with the fifth shielding plate (527), and the sixth shielding plate (528) and the fifth shielding plate (527) shield the width measuring lens (526).

3. The bridge crack measuring device according to claim 2, wherein: the seventh belt pulley (544) is in transmission connection with a first belt pulley (532) rotatably arranged on a fourth supporting plate (523) through a third belt (548), the first belt pulley (532) is respectively in coaxial connection with a second belt pulley (533) and a third gear (531), a third belt pulley (534) meshed with the third gear (531) and driven is rotatably arranged on the fourth supporting plate (523), the third gear (531) is fixedly connected with a first shielding plate (516), the third belt pulley (534) is fixedly connected with a second shielding plate (517), and the first shielding plate (516) and the second shielding plate (517) shield a first depth measuring lens (515).

4. The bridge crack measuring device according to claim 3, wherein: the second belt pulley (533) is in transmission connection with a fourth belt pulley (537) which is rotatably arranged on a third supporting plate (522) through a first belt (535), the fourth belt pulley (537) is coaxially connected with a fourth gear (536), a fifth gear (538) which is in meshing transmission with the fourth gear (536) is rotatably arranged on the third supporting plate (522), the fourth gear (536) is fixedly connected with a third shielding plate (519), the fifth gear (538) is fixedly connected with a fourth shielding plate (520), and the third shielding plate (519) and the fourth shielding plate (520) shield a second depth measuring lens (518).

5. The bridge crack measuring device according to claim 1, wherein: the first support frame (2) is provided with an electric cylinder (4) for driving the first support plate (3) to slide along the vertical direction on the vertical rod of the first support frame (2).

6. The bridge crack measuring device according to claim 1, wherein: the device is characterized in that a first motor (12) for driving a first lead screw (13) to rotate is arranged on the first supporting plate (3), the first lead screw (13) is in threaded connection with one end of a second supporting plate (9), a second motor (15) for driving a second lead screw (16) to rotate is arranged on the second supporting plate (9), the second lead screw (16) is in threaded connection with a measuring mechanism, and a containing box (14) for containing the measuring mechanism is arranged on the first supporting plate (3).

7. The bridge crack measuring device according to claim 1, wherein the chassis (1) is provided with a dust suction mechanism for sucking sundries on the ground, and the dust suction mechanism is as follows: the bottom is provided with pipeline (604) on chassis (1), evenly is provided with dust absorption head (605) that are used for absorbing ground debris on pipeline (604), and pipeline (604) one end communicates each other with the entry end of fan (603), and the exit end of fan (603) communicates each other with the entry end of dust storage tank (601) on chassis (1), and the exit end of dust storage tank (601) is provided with filter (602).

8. The bridge crack measuring device according to claim 1, wherein the four corners of the bottom of the chassis (1) are respectively provided with rollers (11), the chassis (1) is provided with a supporting mechanism for supporting the chassis (1), and the supporting mechanism is as follows: a fifth supporting frame (703) is arranged on one side of the chassis (1), a pull rod (702) is slidingly connected to the fifth supporting frame (703) along an inclined direction, a second rack (714) is arranged on the pull rod (702), a ninth gear (721) meshed with the second rack (714) is rotationally arranged on a supporting rod (716) on the chassis (1), a third rack (717) meshed with the ninth gear (715) is slidingly connected to the chassis (1) along a vertical direction, a third connecting rod (718) is rotationally arranged at the bottom of the chassis (1), a tenth gear (719) meshed with the third rack (717) is arranged on the third connecting rod (718), eleventh gears (720) are respectively arranged at two ends of the third connecting rod (718), fourth connecting rods (722) are respectively rotationally arranged at two sides of the bottom of the chassis (1), a twelfth gear (721) meshed with the eleventh gear (720) are respectively arranged on the two fourth connecting rods (722), cams (705) are respectively arranged at two ends of the fourth connecting rods (722), a bottom four corners of the chassis (1) are respectively arranged at four corners of the chassis (704), a sixth supporting plate (704) meshed with the top support posts (706) are respectively vertically and respectively connected with the top plates (706), the outer circumference of the support column (707) is provided with a third spring (708), one end of the third spring (708) is fixedly connected with the second top plate (706), and the other end of the third spring is fixedly connected with the sixth support plate (704).

9. The bridge crack measuring device of claim 8, wherein: one end of the pull rod (702) is provided with a handle (701), the fifth support frame (703) is connected with an inserting rod (710) in a sliding mode, clamping grooves (713) which are clamped with the inserting rod (710) are uniformly formed in the pull rod (702), a fourth spring (711) is arranged on the outer circumference of the inserting rod (710), one end of the fourth spring (711) is fixedly connected with a second fixing plate (723) on the fifth support frame (703), and the other end of the fourth spring is fixedly connected with a second fixing plate (712) on the inserting rod (710).

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