Bridge bottom surface crack detection device

Abstract

The utility model relates to the technical field of bridge detection, in particular to a bridge bottom surface crack detection device. Comprising a cart arranged at the top of a bridge floor, an electric cylinder is fixedly installed at the top of the cart, a connecting block is fixedly installed at the top end of an output rod of the electric cylinder, the connecting block is rotationally sleeved with a cylinder, a round pipe is fixedly installed at the top of the cylinder, and one end of the round pipe is rotationally sleeved with a first rotating sleeve; and a second rotating sleeve is fixedly installed at one end of the first rotating sleeve, a first telescopic rod rotationally penetrates through the second rotating sleeve, and the first telescopic rod is fixedly sleeved with a first gear. Through a simple adjusting structure, the bracket of the detection equipment can be conveniently rotated and adjusted, so that the crack detection equipment can be conveniently conveyed to a to-be-detected position below a bridge floor by avoiding the bridge floor and a handrail, the problem that manual auxiliary carrying operation is needed is avoided, time and labor are saved during operation, and great convenience is brought to bridge bottom crack detection work.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge detection, in particular to a bridge bottom surface crack detection device. Background Art

[0002] With the continuous development of society, infrastructure has been continuously improved, especially highways, which have brought great convenience to transportation. Bridges are widely constructed and used as an important component of highways crossing complex geographical locations such as rivers, lakes and mountains. They have the advantages of strong bearing capacity, reduced land occupation and convenient traffic management. Bridges often need to be inspected for bridge decks and bridge bottoms during use to prevent safety accidents. The prior art discloses a bridge bottom crack detection device with authorization announcement number CN215493246U, including a trolley, which is slidably connected to the bridge, a connecting plate is provided at the bottom of the trolley, a rotating shaft is rotatably connected in the middle of the connecting plate, a connecting rod is vertically fixed to the outer wall of the upper end of the rotating shaft, a threaded rod is coaxially fixed to the protruding end of the connecting rod, the outer wall of the threaded rod passes through and is rotatably connected to a screw sleeve, and a crack detector is provided on the upper end of the screw sleeve. This detection method will not be staggered, does not require manual work, and the detection is very detailed and there will be no omissions, which is very effective.

[0003] However, during use, it was found that the bracket of the detection equipment of the above design was not easy to rotate and adjust, which made it inconvenient to send the detection equipment to the bottom of the bridge without avoiding the bridge deck and railings. Manual assistance was often required for lifting operations, which was time-consuming and labor-intensive, and brought a lot of trouble to the detection of cracks on the bridge bottom. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a bridge bottom crack detection device, which is convenient for rotating and adjusting the bracket of the detection equipment, and is convenient for sending the crack detection equipment to the position under the bridge deck that needs to be detected, avoiding the bridge deck and railings, avoiding the problem of manual assistance in lifting operations, saving time and labor in operation, bringing great convenience to the bridge bottom crack detection work, and solving the problems raised in the above-mentioned background technology.

[0005] To achieve the above purpose, the utility model adopts the following technical solution: a bridge bottom surface crack detection device, comprising a cart arranged on the top of the bridge deck, an electric cylinder fixedly installed on the top of the cart, a connecting block fixedly installed on the top of the electric cylinder output rod, a cylinder rotatably sleeved on the connecting block, a round tube fixedly installed on the top of the cylinder, a first rotating sleeve rotatably sleeved on one end of the round tube, a second rotating sleeve fixedly installed on one end of the first rotating sleeve, a first telescopic rod rotatably penetrated in the second rotating sleeve, a first gear fixedly sleeved on the first telescopic rod, a first motor is provided at the bottom of the first rotating sleeve, a second gear meshing with the first gear is provided on the output shaft of the first motor, a second telescopic rod is provided at the bottom end of the first telescopic rod, a U-shaped mounting bracket is provided at one end of the second telescopic rod, a mounting sleeve is provided on the U-shaped mounting bracket, a crack detection component is provided on the mounting sleeve, a rotating rod rotatably penetrates in the round tube, one end of the rotating rod is fixed on an inner wall of one side of the first rotating sleeve, a first bevel gear is provided on the other end of the rotating rod, a second motor is provided on the round tube, and a second bevel gear meshing with the first bevel gear is provided on the output shaft of the second motor.

[0006] To facilitate quick assembly and disassembly of crack detection components:

[0007] As a further improvement of the above technical solution: the U-shaped mounting bracket also includes a U-shaped block, which is slidably installed in the U-shaped mounting bracket, and the U-shaped block is fixed on one side of the mounting sleeve, and pin holes are penetrated on the top and bottom inner walls of the U-shaped block and the U-shaped mounting bracket, and two sliding grooves are provided on the inner wall of one side of the U-shaped mounting bracket, and a slide plate is slidably installed in the sliding groove, one end of the slide plate extends out of the sliding groove and is slidably connected to the inner wall of the U-shaped block, and a pin rod is fixedly installed on the sides of the two slide plates away from each other, and the pin rod slides through the corresponding two pin holes, and a bidirectional screw rod is rotatably penetrated on the U-shaped mounting bracket, and the bidirectional screw rod thread passes through the two slide plates.

[0008] The beneficial effect of this improvement is that, through such an arrangement, it is easy to quickly assemble and disassemble the crack detection component, which greatly facilitates the installation of the crack detection equipment.

[0009] To facilitate adjustment of the distance between the crack detection assembly and the bottom of the bridge deck:

[0010] As a further improvement of the above technical solution: the first telescopic rod also includes a first sliding rod, the first sliding rod is slidably installed in the first telescopic rod, the second telescopic rod is fixed at the bottom end of the first sliding rod, a first screw rod is threadedly installed on the first sliding rod, a third motor is fixedly installed on the top end of the first telescopic rod, and the output shaft of the third motor is fixed on the top end of the first screw rod.

[0011] The beneficial effect of this improvement is that, through such an arrangement, it is convenient to adjust the distance between the crack detection component and the bottom of the bridge deck.

[0012] To facilitate telescopic adjustment:

[0013] As a further improvement of the above technical solution: a second sliding rod is slidably installed in the second telescopic rod, a second screw rod is threadedly installed on the second sliding rod, a fourth motor is fixedly installed at one end of the second telescopic rod, and an output shaft of the fourth motor is fixed at one end of the second screw rod.

[0014] The beneficial effect of this improvement is that by setting it in this way, telescopic adjustment is facilitated.

[0015] To facilitate the rotation of the tube:

[0016] As a further improvement of the above technical solution: a counterweight block is provided on the top of the cart, a bracket is provided on the top of the counterweight block, the output rod of the electric cylinder slides through the bracket, and a handle is fixedly installed on one side of the cylinder.

[0017] The beneficial effect of this improvement is that the handle is provided to facilitate the rotation of the round tube.

[0018] In order to facilitate the installation and fixation of the second motor and the first motor:

[0019] As a further improvement of the above technical solution: a horizontal plate is fixedly installed on the top of the circular tube, the second motor is fixedly installed on the top of the horizontal plate, an L-shaped bracket is fixedly installed on the bottom of the first rotating sleeve, and the first motor is fixed on the L-shaped bracket.

[0020] The beneficial effect of this improvement is that by providing the transverse plate and the L-shaped bracket, it is convenient to install and fix the second motor and the first motor.

[0021] In order to facilitate the limiting of the first slide bar and the second slide bar:

[0022] As a further improvement of the above technical solution: a first limit groove is opened on the inner walls on both sides of the first telescopic rod, and a first limit block fixed on one side of the first slide rod is slidably installed in the first limit groove; a second limit groove is opened on the inner walls on both sides of the second telescopic rod, and a second limit block fixed on one side of the second slide rod is slidably installed in the second limit groove.

[0023] The beneficial effect of this improvement is that, through such an arrangement, it is convenient to limit the first sliding rod and the second sliding rod.

[0024] In order to facilitate the support and limit of the bidirectional screw:

[0025] As a further improvement of the above technical solution: a round hole is passed through the U-shaped mounting bracket, the round hole is connected to both sliding grooves, and the bidirectional screw rod rotates and passes through the round hole.

[0026] The beneficial effect of this improvement is that by providing the circular hole, it is convenient to support and limit the bidirectional screw rod.

[0027] The beneficial effects of the utility model are as follows: through a simple adjustment structure, it is convenient to rotate and adjust the bracket of the detection equipment, so as to facilitate the delivery of the crack detection equipment to the position under the bridge deck that needs to be detected, avoiding the bridge deck and the railings, avoiding the problem of manual assisted lifting operations, saving time and labor in the operation, and bringing great convenience to the detection of cracks under the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0029] Figure 2 For this utility model Figure 1 A schematic diagram of the enlarged structure of part A;

[0030] Figure 3 For this utility model Figure 1 A schematic diagram of the enlarged structure of part B;

[0031] Figure 4 For this utility model Figure 1 A schematic diagram of the enlarged structure of the middle C part;

[0032] Figure 5 For this utility model Figure 1 A schematic diagram of the enlarged structure of the D part;

[0033] Figure 6 It is a schematic diagram of the three-dimensional assembly structure of the first rotating sleeve and the second rotating sleeve in the utility model;

[0034] Figure 7 It is a schematic diagram of the U-shaped mounting bracket structure in the utility model.

[0035] In the figure: 1, bridge deck; 2, cart; 3, electric cylinder; 4, connecting block; 5, cylinder; 6, round tube; 7, first rotating sleeve; 8, second rotating sleeve; 9, first telescopic rod; 10, first gear; 11, first motor; 12, second gear; 13, second telescopic rod; 14, U-shaped mounting bracket; 15, mounting sleeve; 16, crack detection assembly; 17, rotating rod; 18, first bevel gear; 19, second motor; 20, second bevel gear; 21, U-shaped block; 22, pin hole; 23, pin rod; 24, slide groove; 25, slide plate; 26, bidirectional screw rod; 27, first slide rod; 28, first screw rod; 29, third motor; 30, second slide rod; 31, second screw rod; 32, fourth motor. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0037] like Figure 1-7As shown, a bridge bottom surface crack detection device comprises a trolley 2 arranged on the top of the bridge deck 1, an electric cylinder 3 is fixedly installed on the top of the trolley 2, a connecting block 4 is fixedly installed on the top of the output rod of the electric cylinder 3, a cylinder 5 is rotatably sleeved on the connecting block 4, a round tube 6 is fixedly installed on the top of the cylinder 5, a first rotating sleeve 7 is rotatably sleeved on one end of the round tube 6, a second rotating sleeve 8 is fixedly installed on one end of the first rotating sleeve 7, a first telescopic rod 9 is rotatably penetrated in the second rotating sleeve 8, a first gear 10 is fixedly sleeved on the first telescopic rod 9, a first motor 11 is provided at the bottom of the first rotating sleeve 7, a second gear 12 meshing with the first gear 10 is provided on the output shaft of the first motor 11, and the first telescopic rod 9 is provided with a first gear 10. A second telescopic rod 13 is provided at the bottom end of the rod 9, and a U-shaped mounting bracket 14 is provided at one end of the second telescopic rod 13. A mounting sleeve 15 is provided on the U-shaped mounting bracket 14, and a crack detection component 16 is provided on the mounting sleeve 15. A rotating rod 17 is rotatably passed through the circular tube 6, and one end of the rotating rod 17 is fixed to an inner wall of one side of the first rotating sleeve 7. A first bevel gear 18 is provided at the other end of the rotating rod 17. A second motor 19 is provided on the circular tube 6, and a second bevel gear 20 meshing with the first bevel gear 18 is provided on the output shaft of the second motor 19. Through a simple adjustment structure, it is convenient to rotate and adjust the bracket of the detection equipment, and then it is convenient to avoid the bridge deck 1 and the railing and send the crack detection equipment to the area under the bridge deck 1 that needs to be detected. The U-shaped mounting bracket 14 also includes a U-shaped block 21, which is slidably mounted in the U-shaped mounting bracket 14, and the U-shaped block 21 is fixed to one side of the mounting sleeve 15. The top and bottom inner walls of the U-shaped block 21 and the U-shaped mounting bracket 14 are penetrated by pin holes 22. Two slide grooves 24 are provided on the inner wall of one side of the U-shaped mounting bracket 14, and a slide plate 25 is slidably mounted in the slide groove 24. One end of the slide plate 25 extends to the outside of the slide groove 24 and is slidably connected to the inner wall of the U-shaped block 21. The two slide plates 25 are fixedly mounted with pin rods 23 on the sides away from each other. The pin rod 23 slides through the corresponding two pin holes 22, and a bidirectional screw rod 26 is rotatably penetrated on the U-shaped mounting bracket 14, and the bidirectional screw rod 26 threadedly penetrates the two slide plates 25. Through such an arrangement, it is convenient to quickly assemble and disassemble the crack detection component 16, which greatly facilitates the installation of the crack detection equipment. The first telescopic rod 9 also includes a first slide rod 27, and the first slide rod 27 is slidably installed in the first telescopic rod 9. The second telescopic rod 13 is fixed to the bottom end of the first slide rod 27. A first screw rod 28 is threadedly installed on the first slide rod 27. A third motor 29 is fixedly installed on the top of the first telescopic rod 9, and the output shaft of the third motor 29 is fixed on the top of the first screw rod 28. Through such an arrangement,Thereby, it is convenient to adjust the distance between the crack detection component 16 and the bottom of the bridge deck. A second slide bar 30 is slidably installed in the second telescopic rod 13, and a second screw rod 31 is threadedly installed on the second slide bar 30. A fourth motor 32 is fixedly installed at one end of the second telescopic rod 13, and the output shaft of the fourth motor 32 is fixed at one end of the second screw rod 31. Through such an arrangement, it is convenient to perform telescopic adjustment. A counterweight block is provided on the top of the cart 2, and a bracket is provided on the top of the counterweight block. The output rod of the electric cylinder 3 slides through the bracket. A handle is fixedly installed on one side of the cylinder 5. By providing the handle, it is convenient to rotate the round tube 6. A horizontal plate is fixedly installed on the top of the round tube 6. The second motor 19 is fixedly installed on the top of the horizontal plate. An L-shaped bracket is fixedly installed on the bottom of the first rotating sleeve 7. The first motor 11 is fixed on the L-shaped bracket. By setting the cross plate and the L-shaped bracket, it is convenient to install and fix the second motor 19 and the first motor 11. The first telescopic rod 9 is provided with a first limiting groove on both sides of the inner wall, and a first limiting block fixed to one side of the first slide bar 27 is slidably installed in the first limiting groove. The second telescopic rod 13 is provided with a second limiting groove on both sides of the inner wall, and a second limiting block fixed to one side of the second slide bar 30 is slidably installed in the second limiting groove. By setting it in this way, it is convenient to limit the first slide bar 27 and the second slide bar 30. The U-shaped mounting bracket 14 is penetrated by a round hole, and the round hole is connected to the two slide grooves 24. The bidirectional screw rod 26 rotates through the round hole. By setting the round hole, it is convenient to support and limit the bidirectional screw rod 26.

[0038] The working principle of the utility model is as follows: when in use, first bring the crack detection component 16 close to the U-shaped mounting bracket 14, so that the U-shaped block 21 is slidably inserted into the U-shaped mounting bracket 14, so that the slide plate 25 contacts the inner wall of the U-shaped block 21, and then rotate the bidirectional screw rod 26, so that the two slide plates 25 are driven to slide in the corresponding slide grooves 24 and move away from each other, so that the pin rod 23 is driven to move and slide through the corresponding two pin holes 22, so that the U-shaped block 21, the mounting sleeve 15 and the crack detection component 16 are fixed. Through such an arrangement, it is convenient to quickly assemble and disassemble the crack detection component 16, which brings great convenience to the installation of the crack detection equipment. Push the cart 2 to On the bridge deck 1, the electric cylinder 3 is then turned on, and the output rod of the electric cylinder 3 drives the connecting block 4, the cylinder 5 and the round tube 6 to rise, so that the height of the round tube 6 exceeds the railing of the bridge, and then the handle is pulled, so that the cylinder 5 is driven to rotate on the connecting block 4, and at the same time, the cylinder 5 drives the round tube 6 to rotate to a suitable position, and then the second motor 19 is turned on, and the output shaft of the second motor 19 drives the second bevel gear 20 to rotate, and the second bevel gear 20 drives the first bevel gear 18 to rotate, and the first bevel gear 18 drives the rotating rod 17 to rotate, so that the first rotating sleeve 7 is driven by the rotating rod 17 to rotate on the round tube 6, and at the same time, the first rotating sleeve 7 drives the second rotating sleeve 8 to rotate, so that the first telescopic rod 9 is driven by the second rotating sleeve 8 to rotate to a vertical state, Then, the third motor 29 is turned on, and the output shaft of the third motor 29 drives the first screw rod 28 to rotate, so that the first slide bar 27 is driven to slide and extend out of the first telescopic rod 9 to a suitable position, so that the second telescopic rod 13 is driven to drop to a suitable height, and the second telescopic rod 13 drives the crack detection component 16 to drop to a suitable height, and then the first motor 11 is turned on, and the output shaft of the first motor 11 drives the second gear 12 to rotate, and the second gear 12 drives the first gear 10 to rotate, and the first gear 10 drives the first telescopic rod 9 to rotate in the second rotating sleeve 8, and at the same time, the first telescopic rod 9 drives the second telescopic rod 13 to rotate, until the second telescopic rod 13 rotates to below the bridge deck 1, so that the crack detection component 16 is The second telescopic rod 13 is driven to rotate to the bottom of the bridge deck 1, and then the fourth motor 32 is turned on. The output shaft of the fourth motor 32 drives the second screw rod 31 to rotate, and the second screw rod 31 drives the second slide rod 30 to slide out of the second telescopic rod 13, so that the crack detection component 16 is moved to a suitable position under the bridge deck 1. Then the crack detection component 16 can be turned on to detect the bottom of the bridge deck 1. Through such an arrangement, it is convenient to rotate and adjust the bracket of the detection equipment, and then it is convenient to avoid the bridge deck 1 and the railing to send the crack detection equipment to the position under the bridge deck 1 that needs to be detected, avoiding the problem of manual assisted lifting operation, saving time and effort in operation, and bringing great convenience to the detection of cracks under the bridge.

[0039] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes 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 apparatus.

[0040] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, embellishments or changes, and can also combine the above technical features in an appropriate manner; these improvements, embellishments, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A bridge bottom surface crack detection device, comprising a trolley (2) arranged on the top of a bridge deck (1), characterized in that: An electric cylinder (3) is fixedly mounted on the top of the cart (2); a connecting block (4) is fixedly mounted on the top of the output rod of the electric cylinder (3); a cylinder (5) is rotatably mounted on the connecting block (4); a round tube (6) is fixedly mounted on the top of the round tube (5); a first rotating sleeve (7) is rotatably mounted on one end of the round tube (6); a second rotating sleeve (8) is fixedly mounted on one end of the first rotating sleeve (7); a first telescopic rod (9) is rotatably penetrated in the second rotating sleeve (8); a first gear (10) is fixedly mounted on the first telescopic rod (9); a first motor (11) is disposed at the bottom of the first rotating sleeve (7); a gear (11) meshing with the first gear (10) is disposed on the output shaft of the first motor (11) a second gear (12) of the first telescopic rod (9); a second telescopic rod (13) is provided at the bottom end of the first telescopic rod (9); a U-shaped mounting bracket (14) is provided at one end of the second telescopic rod (13); a mounting sleeve (15) is provided on the U-shaped mounting bracket (14); a crack detection component (16) is provided on the mounting sleeve (15); a rotating rod (17) is rotatably passed through the circular tube (6); one end of the rotating rod (17) is fixed to an inner wall of one side of the first rotating sleeve (7); a first bevel gear (18) is provided at the other end of the rotating rod (17); a second motor (19) is provided on the circular tube (6); a second bevel gear (20) meshing with the first bevel gear (18) is provided on the output shaft of the second motor (19).

2. A bridge bottom surface crack detection device according to claim 1, characterized in that: The U-shaped mounting bracket (14) further comprises a U-shaped clamping block (21), wherein the U-shaped clamping block (21) is slidably mounted in the U-shaped mounting bracket (14), the U-shaped clamping block (21) is fixed to one side of the mounting sleeve (15), the top and bottom inner walls of the U-shaped clamping block (21) and the U-shaped mounting bracket (14) are penetrated with pin holes (22), one side inner wall of the U-shaped mounting bracket (14) is provided with two sliding grooves (24), a slide plate (25) is slidably mounted in the sliding groove (24), one end of the slide plate (25) extends out of the sliding groove (24) and is slidably connected to the inner wall of the U-shaped clamping block (21), a pin rod (23) is fixedly mounted on one side of the two slide plates (25) away from each other, the pin rod (23) slidably penetrates the corresponding two pin holes (22), a bidirectional screw rod (26) is rotatably penetrated on the U-shaped mounting bracket (14), and the bidirectional screw rod (26) is threadedly penetrated through the two slide plates (25).

3. A bridge bottom surface crack detection device according to claim 1, characterized in that: The first telescopic rod (9) also includes a first sliding rod (27), the first sliding rod (27) is slidably installed in the first telescopic rod (9), the second telescopic rod (13) is fixed to the bottom end of the first sliding rod (27), a first screw rod (28) is threadedly installed on the first sliding rod (27), a third motor (29) is fixedly installed at the top end of the first telescopic rod (9), and an output shaft of the third motor (29) is fixed to the top end of the first screw rod (28).

4. A bridge bottom surface crack detection device according to claim 1, characterized in that: A second sliding rod (30) is slidably mounted inside the second telescopic rod (13), a second screw rod (31) is threadedly mounted on the second sliding rod (30), a fourth motor (32) is fixedly mounted on one end of the second telescopic rod (13), and an output shaft of the fourth motor (32) is fixed to one end of the second screw rod (31).

5. The bridge bottom surface crack detection device according to claim 1, characterized in that: A counterweight block is provided on the top of the cart (2), a bracket is provided on the top of the counterweight block, an output rod of the electric cylinder (3) slides through the bracket, and a handle is fixedly installed on one side of the cylinder (5).

6. A bridge bottom surface crack detection device according to claim 1, characterized in that: A transverse plate is fixedly mounted on the top of the circular tube (6), the second motor (19) is fixedly mounted on the top of the transverse plate, an L-shaped bracket is fixedly mounted on the bottom of the first rotating sleeve (7), and the first motor (11) is fixed on the L-shaped bracket.

7. A bridge bottom surface crack detection device according to claim 2, characterized in that: The first telescopic rod (9) has first limit grooves on both sides of the inner wall, and a first limit block fixed to one side of the first slide bar (27) is slidably installed in the first limit groove. The second telescopic rod (13) has second limit grooves on both sides of the inner wall, and a second limit block fixed to one side of the second slide bar (30) is slidably installed in the second limit groove.

8. A bridge bottom surface crack detection device according to claim 2, characterized in that: The U-shaped mounting bracket (14) is penetrated by a circular hole, the circular hole is communicated with both sliding grooves (24), and the bidirectional screw rod (26) rotates and penetrates the circular hole.

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