Crack detection device for bridge steel structure

Abstract

The utility model discloses a crack detection device for a bridge steel structure, which comprises two clamping installation assemblies, each clamping installation assembly comprises a C-shaped installation frame, two ends of the inner wall of one side of each C-shaped installation frame are respectively provided with a first sliding groove in a penetrating mode, a first sliding block is installed in each first sliding groove in a sliding mode, and a second sliding block is installed in each first sliding block in a sliding mode. One end of a clamping plate is fixedly connected to the surface of one side of each first sliding block, the first sliding blocks are connected with a synchronous adjusting mechanism, probe clamps are arranged on the surfaces of one sides of the two C-shaped mounting frames, the two C-shaped mounting frames are mounted on a base, and an instrument placement assembly is arranged on the surface of one side of the base. Detection errors caused by unconscious shaking displacement of the hand when a worker holds an instrument probe for detection can be reduced through the clamping installation assembly, the clamping width can be integrally adjusted through the clamping installation assembly, limitation in use is reduced, meanwhile, a bridge steel structure cannot be scratched or abraded, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the field of steel structure detection, in particular to a crack detection device for a bridge steel structure. Background Art

[0002] At present, when inspecting steel structure bridges, it is usually necessary to use a detection device to detect them. However, the detection devices currently used in the market require construction workers to temporarily fix the detection device and the bridge with one hand, and operate on the display screen with the other hand to better detect the steel bridge. This structure is more troublesome in the operation process, time-consuming and labor-intensive, and not convenient enough, which can easily reduce work efficiency. For this purpose, application number: CN202321467765.7 discloses a bridge steel structure crack detection device, which relates to the field of crack detection technology, including a connecting block, one end of which is provided with a first groove, and a first shaft is rotatably connected in the first groove. The utility model has a first groove at one end of a connecting piece, a sleeve rod rotatably connected in the first groove, a slide rod slidably connected to the top of the sleeve rod, a slot is provided at the top of the slide rod, a horizontal roller is provided in the slot, and a vertical connecting shaft is provided on the outer surface of the roller. When using the crack detection device, the detection device can be fixed in a fixed frame, and the angle of the connecting piece can be adjusted so that the detection device can be better approached to the steel structure bridge to be detected. After the position of the detection device is determined, the bridge can be squeezed and fixed by tightening the bolts, thereby avoiding the need for the operator to hold the detection device in hand during the detection process. This structure is simple and convenient to operate, which is conducive to improving work efficiency.

[0003] However, the above scheme still has certain defects. The inventor has found through research that in the above scheme, after the position of the detection device is determined, the bridge can be fixed by tightening the bolts to avoid the need for the operator to hold the detection device in hand during the detection process. However, the position of the thread groove is fixed, and this connection and installation method cannot be adjusted according to the actual situation of the installation location, resulting in certain limitations. At the same time, the squeezing and fixing of the steel structure by the bolts may also cause scratches and wear on the outer wall of the bridge steel structure, reducing the service life of the steel structure.

[0004] How to invent a crack detection device for bridge steel structure to improve these problems has become an urgent problem to be solved by technicians in this field. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a crack detection device for bridge steel structure, which aims to improve the existing technology that after the position of the detection device is determined, the bridge can be squeezed and fixed by twisting the bolts, so as to avoid the need for the operator to hold the detection device in hand during the detection process. However, the position of the thread groove is fixed, and this connection and installation method cannot be adjusted according to the actual situation of the installation location, resulting in certain limitations. At the same time, the squeezing and fixing of the steel structure by the bolts may also cause scratches and wear on the outer wall of the bridge steel structure, thereby reducing the service life of the steel structure.

[0006] The utility model is implemented as follows: a crack detection device for a bridge steel structure, comprising two clamping and mounting components, each of the clamping and mounting components comprising a C-shaped mounting frame, both ends of the inner wall of one side of the C-shaped mounting frame are penetrated by a first slide groove, a first slider is slidably installed in each of the first slide grooves, one end of a clamping plate is fixedly connected to the surface of one side of each of the first sliders, the two first sliders are connected to a synchronous adjustment mechanism, a probe clamp is provided on the surface of one side of the two C-shaped mounting frames, the two C-shaped mounting frames are installed on a base, and an instrument placement component is provided on the surface of one side of the base.

[0007] In a preferred technical solution of the present invention, the synchronous adjustment mechanism includes two tooth plates, one end of each of the tooth plates is fixedly connected to the other side surface of the corresponding first slider, the two tooth plates are arranged opposite to each other and a gear is provided between them, and the two tooth plates are meshed with the gears at the same time, the gear is fixedly sleeved on the mounting shaft, one end of the mounting shaft is rotatably connected to the inner wall of one side of the C-type mounting frame, and a worm gear is also fixedly sleeved on the mounting shaft, the worm gear is meshed with a worm on one side, one end of the worm is rotatably mounted on the bottom inner wall of the C-type mounting frame, and the other end of the worm gear extends to the outside of the C-type mounting frame through a through hole provided on the top inner wall of the C-type mounting frame and is fixedly sleeved with a knob.

[0008] In a preferred technical solution of the present utility model, an arc-shaped clamping portion is integrally provided at one end of each of the clamping plates, and two arc-shaped clamping portions located on the same C-shaped mounting frame are arranged opposite to each other.

[0009] In a preferred technical solution of the utility model, anti-slip rubber pads are provided on the two clamping plates and the surfaces on the opposite side of the arc-shaped clamping portion located on the same C-shaped mounting frame.

[0010] In a preferred technical solution of the present utility model, the base includes a mounting plate, and second sliding grooves are provided at both ends of the upper surface of the mounting plate, and a second slider is slidably installed in each of the second sliding grooves, and one end of a connecting shaft is rotatably installed on the top surface of each of the second sliders, and the other end of each of the connecting shafts is fixedly connected to the bottom surface of the corresponding C-shaped mounting frame.

[0011] In a preferred technical solution of the present invention, a groove is provided in the middle of the upper surface of the mounting plate, and an adjusting roller is rotatably installed in the groove, and two ends of the adjusting roller respectively extend out of the inner walls on both sides of the groove and enter the second sliding grooves on both sides and are fixedly connected to one end of a threaded rod, and the other end of each threaded rod is rotatably connected to the inner wall of one end of the corresponding second sliding groove, the thread directions of the two threaded rods are opposite, and a threaded hole is penetrated on the surface of one side of each second sliding block, and is threadedly connected to the corresponding threaded rod through the threaded hole.

[0012] In a preferred technical solution of the utility model, a plurality of evenly distributed anti-slip protrusions are arranged on the outer wall of the adjusting roller.

[0013] In a preferred technical solution of the present utility model, the instrument placement assembly includes a connecting seat, which is arranged on one side surface of the mounting plate, and a U-shaped hinged frame is rotatably connected to one side surface of the connecting seat, and one end of a connecting rod is rotatably installed between the inner walls on both sides of the U-shaped hinged frame, and the other end of the connecting rod is rotatably connected to one side surface of the placement box.

[0014] The beneficial effects of the utility model are as follows: the utility model obtains a crack detection device for a bridge steel structure through the above-mentioned design. When in use, the detection error caused by the unconscious shaking displacement of the hand of the staff when holding the instrument probe for detection can be reduced through the clamping installation component, and the limitations in use are reduced because the clamping installation component as a whole can adjust the clamping width. At the same time, it will not cause scratches or wear to the outer wall of the bridge steel structure, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic three-dimensional diagram of the overall structure provided by the embodiment of the utility model;

[0017] Figure 2 A schematic three-dimensional diagram of the overall structure of another side is provided for the embodiment of the utility model;

[0018] Figure 3 A schematic three-dimensional diagram of the overall structure of the clamping and mounting assembly provided in an embodiment of the utility model;

[0019] Figure 4A schematic three-dimensional diagram of the overall structure of the other side clamping and mounting assembly provided in an embodiment of the utility model;

[0020] Figure 5 A schematic three-dimensional diagram of the overall structure of the base provided in the embodiment of the utility model;

[0021] Figure 6 This is a schematic three-dimensional diagram of the overall structure of the instrument placement component provided in an embodiment of the utility model.

[0022] In the figure: 1-clamping installation assembly; 2-probe clamp; 3-base; 4-instrument placement assembly; 101-C-type mounting frame; 102-first slide groove; 103-first slider; 104-clamping plate; 105-arc-shaped clamping part; 106-tooth plate; 107-gear; 108-mounting shaft; 109-worm gear; 110-worm; 301-mounting plate; 302-second slide groove; 303-second slider; 304-connecting shaft; 305-groove; 306-adjusting roller; 307-threaded rod; 401-connecting seat; 402-U-shaped hinged frame; 403-connecting rod; 404-placement box. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 4 The utility model provides a technical solution: a crack detection device for a bridge steel structure, comprising two clamping and mounting components 1, each clamping and mounting component 1 comprising a C-type mounting frame 101, both ends of the inner wall of one side of the C-type mounting frame 101 are penetrated by first slide grooves 102, a first slider 103 is slidably installed in each first slide groove 102, one end of a clamping plate 104 is fixedly connected to the surface of one side of each first slider 103, the two first sliders 103 are connected to a synchronous adjustment mechanism, a probe clamp 2 is arranged on the surface of one side of the two C-type mounting frames 101, the two C-type mounting frames 101 are installed on a base 3, and an instrument placement component 4 is arranged on the surface of one side of the base 3.

[0025] In a specific embodiment, each probe clamp 2 is rotatably connected to the surface of one side of the corresponding C-shaped mounting frame 101 via a rotating shaft, so as to adjust the detection angle of the detection instrument probe. A damping structure is provided on the rotating shaft to limit the probe clamp 2, so that the stability of the probe can be ensured without applying external force.

[0026] See also Figure 3 and 4 The synchronous adjustment mechanism includes two tooth plates 106, one end of each tooth plate 106 is fixedly connected to the other side surface of the corresponding first slider 103, the two tooth plates 106 are arranged opposite to each other and a gear 107 is provided between them, and the two tooth plates 106 are meshed with the gear 107 at the same time, and the gear 107 is fixedly sleeved on the installation shaft 108, and one end of the installation shaft 108 is rotatably connected to the inner wall of one side of the C-type mounting frame 101. A worm gear 109 is also fixedly sleeved on the installation shaft 108, and the worm gear 109 is meshed with a worm 110 on one side. One end of the worm 110 is rotatably installed on the bottom inner wall of the C-type mounting frame 101, and the other end of the worm 110 extends to the outside of the C-type mounting frame 101 through a through hole provided on the top inner wall of the C-type mounting frame 101 and is fixedly sleeved with a knob.

[0027] When the worm 110 is rotated by the knob, the worm 110 will drive the worm wheel 109 to rotate, thereby driving the installation shaft 108 to rotate accordingly. When the installation shaft 108 rotates, the gear 107 will also be driven to rotate. The gear 107 is meshed with the toothed plates 106 on both sides at the same time, and the two toothed plates 106 are respectively fixedly connected to the corresponding first sliders 103. Therefore, when the gear 107 rotates, the two first sliders 103 will slide synchronously and oppositely in the corresponding first slide grooves 102, so that the distance between the two clamping plates 104 can be adjusted. When using detection instruments such as ultrasonic flaw detectors to detect cracks in steel structure bridges, the clamping and mounting assembly 1 can be used to clamp and mount the entire assembly near the detection site, and then the detection probe of the instrument can be installed with the device as a whole through the probe clamp 2, thereby reducing the detection error caused by the unconscious shaking displacement of the hand when the staff holds the instrument probe for detection, and because the clamping and mounting assembly 1 can adjust the clamping width as a whole, it also reduces the limitations in use.

[0028] Furthermore, an arc-shaped clamping portion 105 is integrally provided at one end of each clamping plate 104 , and the two arc-shaped clamping portions 105 located on the same C-shaped mounting frame 101 are arranged opposite to each other.

[0029] By providing an arc-shaped clamping portion 105 at one end of each clamping plate 104, higher clamping stability can be achieved regardless of whether the surfaces on both sides of the clamping installation portion are flat or curved, thereby further reducing limitations during use.

[0030] Furthermore, anti-slip rubber pads are provided on the surfaces of the two clamping plates 104 and the arc-shaped clamping portion 105 on the same C-shaped mounting frame 101 on the opposite side.

[0031] By setting up anti-slip rubber pads, the friction force can be increased to ensure clamping stability while avoiding scratches and wear on the surface of the bridge steel structure during installation, thereby improving practicality and stability.

[0032] See also Figure 5 The base 3 includes a mounting plate 301, and second sliding grooves 302 are provided at both ends of the upper surface of the mounting plate 301. A second slider 303 is slidably installed in each second sliding groove 302. One end of a connecting shaft 304 is rotatably installed on the top surface of each second slider 303, and the other end of each connecting shaft 304 is fixedly connected to the bottom surface of the corresponding C-shaped mounting frame 101.

[0033] Both clamping and mounting components 1 are slidably connected to the base 3, so that the relative distance between them can be adjusted, and can be adjusted according to actual installation needs. At the same time, the two clamping and mounting components 1 can also rotate independently relative to the base 3 as a whole, so that the clamping direction can be adjusted according to actual conditions, thereby reducing the limitations of the installation process.

[0034] Furthermore, a groove 305 is provided in the middle of the upper surface of the mounting plate 301, and an adjusting roller 306 is rotatably installed in the groove 305. Two ends of the adjusting roller 306 extend out of the inner walls on both sides of the groove 305 and enter the second slide grooves 302 on both sides and are fixedly connected to one end of a threaded rod 307. The other end of each threaded rod 307 is rotatably connected to the inner wall of one end of the corresponding second slide groove 302. The thread directions of the two threaded rods 307 are opposite, and a threaded hole is penetrated on the surface of one side of each second slider 303, and is threadedly connected to the corresponding threaded rod 307 through the threaded hole.

[0035] When the user rotates the adjusting roller 306, the threaded rods 307 on both sides will also rotate synchronously in the corresponding second slide grooves 302. Because each second slider 303 is threadedly connected to the corresponding threaded rod 307 through a threaded hole and the thread directions of the two threaded rods 307 are opposite, when the two threaded rods 307 rotate at the same time, the two second sliders 303 will perform synchronous reverse displacement in the corresponding second slide grooves 302, so that the distance between the two clamping installation components 1 can be adjusted, and can be flexibly adjusted according to the actual installation and the detection needs of cracks in the bridge steel structure.

[0036] Furthermore, a plurality of evenly distributed anti-slip protrusions are provided on the outer wall of the adjusting roller 306 .

[0037] By setting anti-slip protrusions, the stability of use can be improved, and the comfort when touching can also be improved.

[0038] See also Figure 6 The instrument placement component 4 includes a connecting seat 401, which is arranged on one side surface of the mounting plate 301. A U-shaped hinged frame 402 is rotatably connected to the one side surface of the connecting seat 401. One end of a connecting rod 403 is rotatably installed between the inner walls on both sides of the U-shaped hinged frame 402, and the other end of the connecting rod 403 is rotatably connected to the one side surface of the placement box 404.

[0039] The instrument placement component 4 can be adjusted in multiple directions and angles as a whole, so that the user can adjust the position of the placement box 404 after completing the installation and connection between the whole and the bridge steel structure, so that the detection instrument body can be placed therein, thereby improving the convenience in use. The rotation connection between the U-shaped hinge frame 402 and the connecting rod 403 and the rotation connection between the connecting rod 403 and the placement box 404 are both provided with damping structures, thereby ensuring that the instrument placement component 4 as a whole can remain stationary without applying external force during use, thereby ensuring stability during use.

[0040] Working principle: When in use, first adjust the distance between the two clamping and mounting components 1 by rotating the adjusting roller 306 according to the inspection position of the bridge steel structure and the actual installation situation, and rotate the angle of the two clamping and mounting components 1 at the same time, and then rotate the two worms 110 to drive the corresponding two clamping plates 104 to move in the opposite direction, and adjust the distance between the clamping plates 104 according to the thickness of the clamping position until the two groups of clamping plates 104 are stably clamped on the steel structure, and then clamp the detection probe of the detection instrument at a suitable position through the probe clamp 2 and adjust the angle, and then adjust the direction of the placement box 404 according to the overall installation posture, so that the placement box 404 can stably place the instrument body, thereby completing the overall mounting of the detection instrument. The clamping and mounting component 1 can reduce the detection error caused by the unconscious shaking displacement of the hand when the staff holds the instrument probe for detection, and the clamping width of the clamping and mounting component 1 as a whole can be adjusted, which also reduces the limitations in use. At the same time, it will not cause scratches or wear to the bridge steel structure, thereby improving practicality.

[0041] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A crack detection device for a bridge steel structure, characterized in that: The invention comprises two clamping and mounting components, each of which comprises a C-shaped mounting frame, both ends of the inner wall of one side of the C-shaped mounting frame are penetrated by a first slide groove, a first slider is slidably mounted in each of the first slide grooves, one end of a clamping plate is fixedly connected to the surface of one side of each of the first slide grooves, the two first slide grooves are connected to a synchronous adjustment mechanism, a probe clamp is arranged on the surface of one side of the two C-shaped mounting frames, the two C-shaped mounting frames are installed on a base, an instrument placement component is arranged on the surface of one side of the base, the base comprises a mounting plate, both ends of the upper surface of the mounting plate are provided with a second slide groove, and each of the second slide grooves is slidably mounted in the first slide groove. A second slider is installed, and one end of a connecting shaft is rotatably installed on the top surface of each second slider, and the other end of each connecting shaft is fixedly connected to the bottom surface of the corresponding C-shaped mounting frame. A groove is provided in the middle of the upper surface of the mounting plate, and an adjusting roller is rotatably installed in the groove. The two ends of the adjusting roller extend out of the inner walls on both sides of the groove respectively and enter the second sliding grooves on both sides and are fixedly connected to one end of a threaded rod, and the other end of each threaded rod is rotatably connected to the inner wall of one end of the corresponding second sliding groove, the thread directions of the two threaded rods are opposite, and a threaded hole is penetrated on the surface of one side of each second slider, and is threadedly connected to the corresponding threaded rod through the threaded hole.

2. The crack detection device for bridge steel structure according to claim 1, characterized in that: The synchronous adjustment mechanism includes two tooth plates, one end of each of the tooth plates is fixedly connected to the other side surface of the corresponding first slider, the two tooth plates are arranged opposite to each other and a gear is provided between them, and the two tooth plates are meshed with the gears at the same time, the gear is fixedly sleeved on the mounting shaft, one end of the mounting shaft is rotatably connected to the inner wall of one side of the C-type mounting frame, and a worm gear is also fixedly sleeved on the mounting shaft, the worm gear is meshed with a worm on one side, one end of the worm gear is rotatably mounted on the bottom inner wall of the C-type mounting frame, and the other end of the worm gear extends to the outside of the C-type mounting frame through a through hole provided on the top inner wall of the C-type mounting frame and is fixedly sleeved with a knob.

3. The crack detection device for bridge steel structure according to claim 1, characterized in that: One end of each clamping plate is integrally provided with an arc-shaped clamping portion, and the two arc-shaped clamping portions located on the same C-shaped mounting frame are arranged opposite to each other.

4. The crack detection device for bridge steel structure according to claim 3, characterized in that: Anti-slip rubber pads are arranged on the two clamping plates and the surfaces on the opposite side of the arc-shaped clamping part located on the same C-shaped mounting frame.

5. The crack detection device for bridge steel structure according to claim 1, characterized in that: The outer wall of the adjusting roller is provided with a plurality of evenly distributed anti-slip protrusions.

6. The crack detection device for bridge steel structure according to claim 1, characterized in that: The instrument placement assembly includes a connecting seat, which is arranged on one side surface of the mounting plate. A U-shaped hinged frame is rotatably connected to one side surface of the connecting seat. One end of a connecting rod is rotatably installed between the inner walls on both sides of the U-shaped hinged frame, and the other end of the connecting rod is rotatably connected to one side surface of the placement box.

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